Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
_____________________________________________
FORM 10-Q
_____________________________________________

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2012 

Commission File Number 001-08106
_____________________________________________

MASTEC, INC.
(Exact name of registrant as specified in its charter)
_____________________________________________

 	 	
      Florida	65-0829355	
(State or other jurisdiction of	(I.R.S. Employer	
incorporation or organization)	Identification No.)	
 	 	
         800 S. Douglas Road, 12th Floor, Coral Gables, FL	33134	
(Address of principal executive offices)	(Zip Code)	

Registrant’s telephone number, including area code: (305) 599-1800
_____________________________________________

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes  R  No  £

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes  R   No £

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

þ Large accelerated filer	¨ Accelerated filer	¨ Non-accelerated filer	¨ Smaller reporting company	
 	
 	(Do not check if a smaller reporting company)	

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes£ NoR

As of October 29, 2012, MasTec, Inc. had 75,974,952 shares of common stock, $0.10 par value, outstanding.

Table of Contents

MASTEC, INC.
FORM 10-Q
QUARTER ENDED SEPTEMBER 30, 2012

TABLE OF CONTENTS

 	 	
PART I. FINANCIAL INFORMATION	3	
Item 1. Financial Statements	3	
Condensed Unaudited Consolidated Statements of Operations	3	
Condensed Unaudited Consolidated Statements of Other Comprehensive Income	4	
Condensed Unaudited Consolidated Balance Sheets	5	
Condensed Unaudited Consolidated Statements of Cash Flows	6	
Notes to the Condensed Unaudited Consolidated Financial Statements	7	
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	31	
Item 3. Quantitative and Qualitative Disclosures about Market Risk	46	
Item 4. Controls and Procedures	46	
PART II. OTHER INFORMATION	46	
Item 1. Legal Proceedings	47	
Item 1A. Risk Factors	47	
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	47	
Item 6. Exhibits	47	
SIGNATURES	49	

2

Table of Contents

PART 1. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

MASTEC, INC.
CONDENSED UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share amounts)

 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	For the Three Months Ended
September 30,	 	For the Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Revenue	$	1,067,300	
 	 	$	816,226	
 	 	$	2,794,431	
 	 	$	2,099,674	
 	
Costs of revenue, excluding depreciation and amortization	924,304	
 	 	702,969	
 	 	2,445,056	
 	 	1,805,997	
 	
Depreciation and amortization	22,645	
 	 	19,587	
 	 	65,125	
 	 	52,769	
 	
General and administrative expenses	42,514	
 	 	35,174	
 	 	118,192	
 	 	97,739	
 	
Interest expense, net	9,446	
 	 	8,977	
 	 	27,883	
 	 	25,202	
 	
Gain on remeasurement of equity interest in acquiree	—	
 	 	—	
 	 	—	
 	 	(29,041	)	
Other expense, net	8,815	
 	 	650	
 	 	7,989	
 	 	160	
 	
Income from continuing operations before provision for income taxes	$	59,576	
 	 	$	48,869	
 	 	$	130,186	
 	 	$	146,848	
 	
Provision for income taxes	(23,478	)	 	(18,042	)	 	(51,229	)	 	(56,374	)	
Income from continuing operations before non-controlling interests	$	36,098	
 	 	$	30,827	
 	 	$	78,957	
 	 	$	90,474	
 	
Discontinued operations (See Note 4 – Discontinued Operations):	 	 	 	 	 	 	 	
(Loss) income from discontinued operations, net of tax, including impairment charges and loss on disposal of $7.7 million and $8.2 million, net of tax, respectively, for the three and nine month periods ended September 30, 2012	$	(9,281	)	 	$	1,003	
 	 	$	(7,881	)	 	$	6,937	
 	
Net income	$	26,817	
 	 	$	31,830	
 	 	$	71,076	
 	 	$	97,411	
 	
Net loss attributable to non-controlling interests	(4	)	 	(12	)	 	(9	)	 	(31	)	
Net income attributable to MasTec, Inc.	$	26,821	
 	 	$	31,842	
 	 	$	71,085	
 	 	$	97,442	
 	
Earnings per share (1) (See Note 2 - Earnings Per Share):	 	 	 	 	 	 	 	
Basic earnings (loss) per share:	 	 	 	 	 	 	 	
Continuing operations	$	0.47	
 	 	$	0.36	
 	 	$	1.00	
 	 	$	1.10	
 	
Discontinued operations	(0.12	)	 	0.01	
 	 	(0.10	)	 	0.09	
 	
Total basic earnings per share	$	0.35	
 	 	$	0.38	
 	 	$	0.90	
 	 	$	1.19	
 	
Basic weighted average common shares outstanding	76,194	
 	 	84,732	
 	 	79,009	
 	 	81,982	
 	
Diluted earnings (loss) per share:	 	 	 	 	 	 	 	
Continuing operations	$	0.45	
 	 	$	0.35	
 	 	$	0.97	
 	 	$	1.05	
 	
Discontinued operations	(0.12	)	 	0.01	
 	 	(0.10	)	 	0.08	
 	
Total diluted earnings per share	$	0.34	
 	 	$	0.36	
 	 	$	0.87	
 	 	$	1.13	
 	
Diluted weighted average common shares outstanding	79,526	
 	 	89,324	
 	 	81,982	
 	 	86,933	

 	 	
(1)	Note that earnings per share tables may contain slight summation differences due to rounding.	

The accompanying notes are an integral part of these condensed unauditedconsolidated financial statements.

3

Table of Contents

MASTEC, INC.
CONDENSED UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in thousands)

 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	For the Three Months Ended
September 30,	 	For the Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Net income	$	26,817	
 	 	$	31,830	
 	 	$	71,076	
 	 	$	97,411	
 	
Foreign currency translation gains (losses)	2,176	
 	 	(3,094	)	 	2,304	
 	 	(3,060	)	
Unrealized gains (losses) on available for sale securities:	 	 	 	 	 	 	 	
Unrealized gains (losses) on available for sale securities, before tax	634	
 	 	(334	)	 	545	
 	 	(753	)	
Plus: Reversal of unrealized losses on redeemed security	—	
 	 	—	
 	 	—	
 	 	458	
 	
Less: (Provision for) benefit from income taxes	(246	)	 	127	
 	 	(206	)	 	111	
 	
Unrealized gain (loss) on available for sale securities, net of tax	$	388	
 	 	$	(207	)	 	$	339	
 	 	$	(184	)	
Comprehensive income	$	29,381	
 	 	$	28,529	
 	 	$	73,719	
 	 	$	94,167	
 	
Comprehensive loss attributable to non-controlling interests	(4	)	 	(12	)	 	(9	)	 	(31	)	
Comprehensive income attributable to MasTec, Inc.	$	29,385	
 	 	$	28,541	
 	 	$	73,728	
 	 	$	94,198	

The accompanying notes are an integral part of these condensed unauditedconsolidated financial statements.

4

Table of Contents

MASTEC, INC.
CONDENSED UNAUDITED CONSOLIDATED BALANCE SHEETS

(in thousands, except share and per share amounts)

 	September 30,
2012	 	December 31,
2011	
Assets	 	 	 	
Current assets:	 	 	 	
Cash and cash equivalents	$	10,472	
 	 	$	7,406	
 	
Accounts receivable, net of allowance	873,102	
 	 	652,553	
 	
Inventories	91,037	
 	 	88,914	
 	
Deferred tax assets, net	—	
 	 	10,596	
 	
Prepaid expenses and deposits	27,851	
 	 	21,001	
 	
Other current assets	6,435	
 	 	11,739	
 	
Current assets of discontinued operations	16,665	
 	 	30,608	
 	
Total current assets	$	1,025,562	
 	 	$	822,817	
 	
Property and equipment, net	287,529	
 	 	263,007	
 	
Goodwill	724,347	
 	 	714,772	
 	
Other intangible assets, net	102,229	
 	 	110,707	
 	
Available for sale auction rate securities	14,110	
 	 	13,565	
 	
Other assets	32,928	
 	 	42,167	
 	
Long-term assets of discontinued operations	9,195	
 	 	121,695	
 	
Total assets	$	2,195,900	
 	 	$	2,088,730	
 	
Liabilities and Shareholders’ Equity	 	 	 	
Current liabilities:	 	 	 	
Current maturities of long-term debt	$	42,436	
 	 	$	34,050	
 	
Accounts payable	431,864	
 	 	297,712	
 	
Accrued salaries and wages	55,661	
 	 	37,561	
 	
Accrued taxes payable	22,316	
 	 	5,383	
 	
Accrued insurance	18,351	
 	 	19,304	
 	
Other accrued expenses	17,021	
 	 	10,629	
 	
Current deferred tax liabilities, net	4,619	
 	 	—	
 	
Acquisition-related contingent consideration, current	19,210	
 	 	16,955	
 	
Billings in excess of costs and earnings	104,281	
 	 	108,433	
 	
Other current liabilities	28,407	
 	 	27,169	
 	
Current liabilities of discontinued operations	5,334	
 	 	29,274	
 	
Total current liabilities	$	749,500	
 	 	$	586,470	
 	
Acquisition-related contingent consideration	70,870	
 	 	75,925	
 	
Long-term debt	410,561	
 	 	460,690	
 	
Deferred tax liabilities, net	108,684	
 	 	122,614	
 	
Other liabilities	40,319	
 	 	31,824	
 	
Total liabilities	$	1,379,934	
 	 	$	1,277,523	
 	
Commitments and contingencies (See Note 14)	

 	
 	
Shareholders’ equity:	 	 	 	
Preferred stock, $1.00 par value; authorized shares - 5,000,000; issued and outstanding shares - none	$	—	
 	 	$	—	
 	
Common stock, $0.10 par value; authorized shares - 145,000,000; issued shares – 85,435,438 and 85,162,527 as of September 30, 2012 and December 31, 2011, respectively	8,544	
 	 	8,516	
 	
Capital surplus	798,108	
 	 	792,096	
 	
Accumulated surplus	164,574	
 	 	93,489	
 	
Accumulated other comprehensive loss	(5,303	)	 	(7,946	)	
Treasury stock, at cost; shares - 9,467,286 and 4,593,663 as of September 30, 2012 and December 31, 2011, respectively	(150,000	)	 	(75,000	)	
Total MasTec, Inc. shareholders’ equity	$	815,923	
 	 	$	811,155	
 	
Non-controlling interests	43	
 	 	52	
 	
Total shareholders’ equity	$	815,966	
 	 	$	811,207	
 	
Total liabilities and shareholders’ equity	$	2,195,900	
 	 	$	2,088,730	

The accompanying notes are an integral part of these condensed unauditedconsolidated financial statements.

5

Table of Contents

MASTEC, INC.
CONDENSED UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

 	For the Nine Months Ended
September 30,	
 	2012	 	2011	
Cash flows from operating activities:	 	 	 	
Net income	$	71,076	
 	 	$	97,411	
 	
Adjustments to reconcile net income to net cash provided by operating activities:	 	 	 	
Depreciation and amortization	65,767	
 	 	53,552	
 	
Stock-based compensation expense	3,351	
 	 	2,779	
 	
Excess tax benefit from stock-based compensation	(302	)	 	(3,942	)	
Non-cash interest expense	6,424	
 	 	5,460	
 	
Provision for doubtful accounts	2,533	
 	 	1,478	
 	
Impairment of securities available for sale	—	
 	 	457	
 	
(Gain) loss on sale of assets	(1,569	)	 	139	
 	
Impairment charges and loss on disposal of businesses	12,922	
 	 	—	
 	
Gain on remeasurement of equity interest in acquiree	—	
 	 	(29,041	)	
Changes in assets and liabilities, net of assets acquired and liabilities assumed:	 	 	 	
Accounts receivable	(233,220	)	 	(226,993	)	
Inventories	9,936	
 	 	(35,340	)	
Deferred tax assets and liabilities, net	(3,555	)	 	38,816	
 	
Other assets, current and non-current portion	(6,383	)	 	939	
 	
Accounts payable and accrued expenses	176,289	
 	 	93,467	
 	
Billings in excess of costs and earnings	(3,367	)	 	(61,916	)	
Other liabilities, current and non-current portion	14,768	
 	 	(361	)	
Net cash provided by (used in) operating activities	$	114,670	
 	 	$	(63,095	)	
Cash flows provided by (used) in investing activities:	 	 	 	
Cash paid for acquisitions, net, including contingent consideration	(17,496	)	 	(85,367	)	
Capital expenditures	(50,331	)	 	(56,996	)	
Proceeds from sale of assets	5,808	
 	 	4,456	
 	
Proceeds from disposal of business, net	97,728	
 	 	—	
 	
Proceeds from redemption of investments	—	
 	 	4,600	
 	
Investments in life insurance policies	(284	)	 	(283	)	
Net cash provided by (used in) investing activities	$	35,425	
 	 	$	(133,590	)	
Cash flows (used in) provided by financing activities:	 	 	 	
Proceeds from credit facility	631,815	
 	 	135,761	
 	
Repayments of credit facility	(681,815	)	 	(108,761	)	
Repayments of other borrowings	(15,510	)	 	(9,098	)	
Proceeds from (repayments of) book overdrafts	(5,645	)	 	22,698	
 	
Payments of capital lease obligations	(14,806	)	 	(12,926	)	
Proceeds from stock option exercises and other share-based awards	1,445	
 	 	11,921	
 	
Excess tax benefit from stock-based compensation	302	
 	 	3,942	
 	
Purchases of treasury stock	(75,000	)	 	(1,950	)	
Payments of financing costs	(113	)	 	(6,069	)	
Net cash (used in) provided by financing activities	$	(159,327	)	 	$	35,518	
 	
Net decrease in cash and cash equivalents	(9,232	)	 	(161,167	)	
Net effect of currency translation on cash	135	
 	 	(74	)	
Cash and cash equivalents - beginning of period	$	20,279	
 	 	$	177,604	
 	
Cash and cash equivalents - end of period	$	11,182	
 	 	$	16,363	
 	
Cash and cash equivalents of discontinued operations	$	710	
 	 	$	9,079	
 	
Cash and cash equivalents of continuing operations	$	10,472	
 	 	$	7,284	
 	
Supplemental cash flow information:	 	 	 	
Interest paid	$	20,879	
 	 	$	20,558	
 	
Income taxes paid, net of refunds	$	37,219	
 	 	$	18,570	
 	
Receipt of inventory prepaid in prior year	$	12,005	
 	 	$	—	
 	
Supplemental disclosure of noncash information:	 	 	 	
Equipment acquired under capital lease	$	29,917	
 	 	$	5,286	
 	
Equipment acquired under financing arrangements	$	4,887	
 	 	$	10,692	
 	
Conversion of leases from operating to capital	$	—	
 	 	$	23,366	
 	
Shares issued in connection with business combinations	$	—	
 	 	$	94,213	
 	
Exchange of senior convertible notes	$	—	
 	 	$	202,322	

The accompanying notes are an integral part of these condensed unauditedconsolidated financial statements.

6

Table of Contents

MasTec, Inc.
Notes to the Condensed Unaudited Consolidated Financial Statements

Note 1 – Business, Basis of Presentation and Significant Accounting Policies
Nature of the Business
MasTec, Inc. (collectively with its subsidiaries, “MasTec” or the “Company”) is a leading infrastructure construction company operating mainly throughout North America across a range of industries. The Company’s activities include the engineering, building, installation, maintenance and upgrade of energy, utility and communications infrastructure, such as: electrical utility transmission and distribution; power generation; natural gas and petroleum pipeline infrastructure; wireless, wireline and satellite communications; wind farms, solar farms and other renewable energy; industrial infrastructure; and water and sewer systems. MasTec’s customers are primarily in the utility, communications and government industries.
Basis of Presentation
The accompanying condensed unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and with the instructions for Form 10-Q and Rule 10-01 of Regulation S-X. Pursuant to these rules and regulations, certain information and footnote disclosures normally included in the annual consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. The accompanying condensed consolidated balance sheet as of December 31, 2011 is derived from the Company’s audited financial statements as of that date. Because certain information and footnote disclosures have been condensed or omitted, these condensed unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto as of and for the year ended December 31, 2011 contained in the Company’s most recent Annual Report on Form 10-K, as amended. In management’s opinion, all normal and recurring adjustments considered necessary for a fair presentation of the financial position, results of operations and cash flows for the periods presented have been included. Interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. The Company believes that the disclosures made in these condensed unaudited consolidated financial statements are adequate to make the information not misleading.
Principles of Consolidation
The accompanying condensed unaudited consolidated financial statements include MasTec, Inc. and its subsidiaries and include the accounts of all majority-owned subsidiaries over which the Company exercises control and, when applicable, entities in which the Company has a controlling financial interest. Other parties’ interests in companies for which MasTec exercises control and has a controlling financial interest are reported as non-controlling interests within shareholders’ equity. Net income or loss attributable to non-controlling interests is reported as a separate line item below net income. The Company’s investments in entities in which the Company does not have a controlling interest, but has the ability to exert significant influence, are accounted for using the equity method of accounting. Equity method investments are recorded as long-term assets in the condensed unaudited consolidated balance sheets. Income or loss from these investments is recorded in other income or expense, net, in the condensed unaudited consolidated statements of operations. The cost method is used for investments in entities in which the Company does not have the ability to exert significant influence. All significant intercompany balances and transactions have been eliminated in consolidation.
Discontinued Operations
In determining whether a group of assets to be disposed of should be presented as a discontinued operation, the Company makes a determination as to whether such assets comprise a component of the entity, which includes an assessment as to whether it has historic operations and cash flows that can be clearly distinguished. The Company also determines whether the cash flows associated with the group of assets will be significantly eliminated from the ongoing operations of the Company as a result of the disposal transaction and whether the Company will have no significant continuing involvement in the operations of the disposed assets after the disposal transaction. If management believes these conditions exist, then the assets and liabilities and results of operations of the assets to be disposed, as well as any estimated gain or loss on the disposal transaction, are aggregated for presentation separately from the financial position and operating results of the Company's continuing operations.
For those businesses for which management has committed to a plan of sale, the business is valued at the lower of its carrying amount or estimated fair value less costs to sell. If the carrying amount of the business exceeds its estimated fair value, an impairment loss is recognized. Estimated fair value is determined using management estimates and entity-specific assumptions. Management considers historical experience and all available information at the time such estimates are made; however, the fair value that is ultimately recognized upon sale of the related business may differ from the estimated fair value as reflected in the condensed unaudited consolidated financial statements. Depreciation and amortization expense is not recorded on assets of a business to be sold once that business has been classified as held for sale.
In May 2012, Red Ventures LLC (“Red Ventures”) exercised its purchase option to acquire MasTec’s wholly owned subsidiary, DirectStar TV, LLC (“DirectStar”), including its subsidiaries (together, the “DirectStar Business”). The transaction was consummated in June 2012. Accordingly, the DirectStar Business is presented as a discontinued operation in the condensed unaudited consolidated financial statements for all periods presented.

7

Table of Contents

In September 2012, MasTec's board of directors approved a plan of sale for the projects and net assets of its wholly-owned subsidiary, Globetec Construction LLC and subsidiaries (“Globetec”), to be completed on or before September 30, 2013. Accordingly, Globetec is presented as a discontinued operation in the condensed unaudited consolidated financial statements for all periods presented. In connection with its decision to sell Globetec, the Company recognized impairment losses of $12.7 million during the three month period ended September 30, 2012.
See Note 4 - Discontinued Operations.
Management Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Key estimates include: the recognition of revenue, in particular, on long-term construction contracts, including estimates to complete and provisions for contract losses; allowances for doubtful accounts; accrued self-insured claims; estimated fair values of goodwill and intangible assets, acquisition-related contingent consideration, assets and liabilities classified as held-for-sale, investments in equity method investees, securities available for sale and certain convertible debt obligations; asset lives used in computing depreciation and amortization, including amortization of intangible assets; accounting for income taxes; and the estimated impact of contingencies and ongoing litigation. While management believes that such estimates are fair when considered in conjunction with the consolidated financial position and results of operations taken as a whole, actual results could differ from those estimates and such differences may be material to the condensed unaudited consolidated financial statements.
Reclassifications
Certain prior year amounts have been reclassified to conform with the current period presentation.
Significant Accounting Policies
Except for adoption of the accounting pronouncements discussed below, there have been no material changes to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011, as amended.
Recently Issued Accounting Standards, Not Adopted as of September 30, 2012
In July 2012, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2012-02  Intangibles – Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment  (“ASU 2012-02”). ASU 2012-02 permits an entity to first assess qualitative factors to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired before performing quantitative impairment testing. The more-likely-than-not threshold is defined as having a likelihood of greater than 50%. ASU 2012-02 is effective for fiscal years beginning after September 15, 2012, with early adoption permitted. The Company is currently evaluating the potential impact of ASU 2012-02 on its indefinite-lived intangible asset impairment assessment methodology.
Recently Adopted Accounting Pronouncements
In May 2011, the FASB issued ASU 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and International Financial Reporting Standards  (“ASU 2011-04”). The objective of ASU 2011-04 is to converge guidance of the FASB and the International Accounting Standards Board on fair value measurement and disclosure. This update changes the wording used to describe many of the requirements in U.S. GAAP for measuring fair value and disclosing information about fair value measurements; clarifies the FASB’s intent about the application of existing fair value measurement requirements; and changes particular principles or requirements for measuring fair value or for disclosing information about fair value measurements. ASU 2011-04, which the Company adopted as of January 1, 2012, is effective prospectively for interim and annual periods beginning after December 15, 2011. See fair value disclosures in Note 6 - Fair Value of Financial Instruments.
In June 2011, the FASB issued ASU 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income (“ASU 2011-05”). The objective of ASU 2011-05 is to improve the comparability, consistency and transparency of financial reporting and to increase the prominence of items reported in other comprehensive income. ASU 2011-05 provides the option to present the total of comprehensive income, the components of net income and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. ASU 2011-05 eliminates the option to present the components of other comprehensive income as part of the statement of changes in shareholders' equity.
In December 2011, the FASB issued ASU 2011-12, Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in ASU 2011-05  (“ASU 2011-12”), which defers the provisions in ASU 2011-05 relating to the presentation of reclassification adjustments. ASU 2011-12 reinstates the requirements for the presentation of reclassifications out of accumulated other comprehensive income that were in place before ASU 2011-05. The remaining provisions of ASU 2011-05 are effective retrospectively for annual periods, and interim periods within those years, beginning after December 15, 2011. ASU 2011-12, which the Company adopted as of January 1, 2012, is effective for reporting periods beginning after December 15, 2011. See the condensed unaudited consolidated statements of comprehensive income for related disclosures.

8

Table of Contents

Note 2 – Earnings Per Share
Basic earnings per share is computed by dividing earnings available to MasTec’s common shareholders by the weighted average number of common shares outstanding for the period. Diluted earnings per share is computed by dividing earnings by the number of fully diluted shares, which includes the effect of potentially dilutive issuances of common shares, as determined using earnings from continuing operations. Potentially dilutive common shares include outstanding stock options and unvested restricted share awards, as calculated under the treasury stock method, as well as shares associated with the Company’s outstanding convertible securities. 
The following table provides details of the Company’s earnings per share calculations for the periods indicated (in thousands, except per share amounts). Note that earnings per share calculations may contain slight summation differences due to rounding.

 	For the Three Months Ended
September 30,	 	For the Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Basic	 	 	 	 	 	 	 	
Net income attributable to MasTec:	 	 	 	 	 	 	 	
Net income from continuing operations before non-controlling interests	$	36,098	
 	 	$	30,827	
 	 	$	78,957	
 	 	$	90,473	
 	
Net (loss) income from discontinued operations before non-controlling interests	(9,277	)	 	1,015	
 	 	(7,872	)	 	6,969	
 	
Basic net income attributable to MasTec	$	26,821	
 	 	$	31,842	
 	 	$	71,085	
 	 	$	97,442	
 	
Weighted average shares outstanding	76,194	
 	 	84,732	
 	 	79,009	
 	 	81,982	
 	
Basic earnings (loss) per share attributable to MasTec:	 	 	 	 	 	 	 	
Continuing operations	$	0.47	
 	 	$	0.36	
 	 	$	1.00	
 	 	$	1.10	
 	
Discontinued operations	(0.12	)	 	0.01	
 	 	(0.10	)	 	0.09	
 	
Total basic earnings per share	$	0.35	
 	 	$	0.38	
 	 	$	0.90	
 	 	$	1.19	
 	
Diluted	 	 	 	 	 	 	 	
Net income attributable to MasTec:	 	 	 	 	 	 	 	
Basic net income from continuing operations before non-controlling interests	$	36,098	
 	 	$	30,827	
 	 	$	78,957	
 	 	$	90,473	
 	
Interest expense on Original 4.0% Notes, net of tax	59	
 	 	62	
 	 	176	
 	 	272	
 	
Interest expense on Original 4.25% Notes, net of tax	19	
 	 	20	
 	 	58	
 	 	134	
 	
Diluted net income from continuing operations before non-controlling interests	$	36,176	
 	 	$	30,909	
 	 	$	79,191	
 	 	$	90,879	
 	
Net (loss) income from discontinued operations before non-controlling interests	(9,277	)	 	1,015	
 	 	(7,872	)	 	6,969	
 	
Diluted net income attributable to MasTec	$	26,899	
 	 	$	31,924	
 	 	$	71,319	
 	 	$	97,848	
 	
Shares:	 	 	 	 	 	 	 	
Basic weighted average shares outstanding	76,194	
 	 	84,732	
 	 	79,009	
 	 	81,982	
 	
Dilutive common stock equivalents	887	
 	 	1,049	
 	 	842	
 	 	1,207	
 	
Dilutive premium shares, New 4.0% Notes	794	
 	 	1,366	
 	 	631	
 	 	1,166	
 	
Dilutive premium shares, New 4.25% Notes	845	
 	 	1,371	
 	 	694	
 	 	1,187	
 	
Dilutive shares, Original 4.0% Notes	612	
 	 	612	
 	 	612	
 	 	945	
 	
Dilutive shares, Original 4.25% Notes	194	
 	 	194	
 	 	194	
 	 	446	
 	
Diluted weighted average shares outstanding	79,526	
 	 	89,324	
 	 	81,982	
 	 	86,933	
 	
Diluted earnings (loss) per share attributable to MasTec:	 	 	 	 	 	 	 	
Continuing operations	$	0.45	
 	 	$	0.35	
 	 	$	0.97	
 	 	$	1.05	
 	
Discontinued operations	(0.12	)	 	0.01	
 	 	(0.10	)	 	0.08	
 	
Total diluted earnings per share	$	0.34	
 	 	$	0.36	
 	 	$	0.87	
 	 	$	1.13	

There were no weighted average anti-dilutive common stock equivalents from restricted share awards for the three or nine months ended September 30, 2012, respectively. A total of 7,609 and 2,564 weighted average anti-dilutive common stock equivalents were not included in the Company’s diluted earnings per share calculations for the three and nine months ended September 30, 2011, respectively.

9

Table of Contents

Treasury Stock and Share Activity
During the fourth quarter of 2011, the Company’s Board of Directors authorized a $150 million share repurchase plan, under which the Company repurchased 4.6 million shares of common stock for $75.0 million during the year ended December 31, 2011. During the second quarter of 2012, the Company repurchased an additional 2.9 million shares under this plan for an aggregate purchase price of $43.8 million. In July 2012, the Company repurchased an additional 2.0 million shares for an aggregate purchase price of $31.2 million, which completed the share repurchase plan. The repurchased shares are held in the Company’s treasury.
A summary of share activity for the nine months ended September 30, 2012 is as follows (in thousands):

 	Common Shares
Outstanding	 	Treasury Shares	
Balance as of December 31, 2011	80,569	
 	 	4,594	
 	
Shares issued for stock options	68	
 	 	 	
Shares issued for restricted stock	143	
 	 	 	
Other shares issued	61	
 	 	 	
Common stock repurchases	(4,873	)	 	4,873	
 	
Balance as of September 30, 2012	75,968	
 	 	9,467	

Senior Convertible Notes – Diluted Share Impact
The Company had convertible notes outstanding during each of the three and nine months ended September 30, 2012 and 2011. During the first quarter of 2011, the Company exchanged $105.3 million of its original 4.0% senior convertible notes (the “Original 4.0% Notes”) and $97.0 million of its original 4.25% senior convertible notes (the “Original 4.25% Notes” and, together with the Original 4.0% Notes, the “Original Notes”) for identical principal amounts of new 4.0% and 4.25% senior convertible notes (the “New 4.0% Notes” and the “New 4.25% Notes,” respectively and, collectively, the “New Notes”). The terms of the New Notes are substantially identical to the Original Notes, except that the New Notes have an optional physical (common share), cash or combination settlement feature and contain certain conditional conversion features. Due to the optional cash settlement feature and management’s intent to settle the principal amount thereof in cash, the conversion shares underlying the outstanding principal amount of the New Notes, totaling approximately 13.0 million shares, are not required to be included in the Company’s diluted share count. If, however, the Company’s average stock price per share for the corresponding periods exceeds the $15.76 conversion price for the New 4.0% Notes or the $15.48 conversion price for the New 4.25% Notes, the resulting amount, in shares, of the premium over the principal amount is included in the Company’s diluted share count (“premium shares”).
The number of common shares issuable upon conversion of the Company’s Original Notes is reflected in the calculation of diluted earnings per share for the corresponding periods by application of the “if-converted” method to the extent their effect on the computation of earnings per share from continuing operations is dilutive. Under the “if-converted” method, net income from continuing operations is adjusted to add back the after-tax amount of interest recognized in the period associated with the convertible notes, and correspondingly, the convertible notes are assumed to have been converted with the resulting common shares added to weighted average shares outstanding. Premium shares associated with the New Notes are reflected in the calculation of diluted earnings per share to the extent that the Company’s average stock price for the corresponding periods exceeded the respective conversion prices of the New Notes, beginning with the date of issuance, or the beginning of the period, as applicable.

10

Table of Contents

The following table summarizes the principal amounts of the Company’s outstanding convertible notes for the periods indicated, including their respective classification within the computation of earnings per share for each period (in millions):

 	Three and Nine Months Ended
September 30,	
 	2012	 	2011	
Dilutive:	 	 	 	
New 4.0% Notes (1)	$	105.3	
 	 	$	105.3	
 	
New 4.25% Notes (1)	97.0	
 	 	97.0	
 	
Original 4.0% Notes (2)	9.7	
 	 	9.7	
 	
Original 4.25% Notes (2)	3.0	
 	 	3.0	
 	
Total principal amount, dilutive outstanding convertible notes	$	215.0	
 	 	$	215.0	
 	
(1)Dilutive shares associated with the New Notes are attributable to the premium over the respective conversion prices.
(2)Dilutive shares associated with the Original Notes are attributable to the underlying principal amounts.
The Company’s average stock price for the three and nine month periods ended September 30, 2012 and 2011 exceeded the conversion prices of the New Notes. The number of premium shares included in the Company’s diluted share count varies with fluctuations in the Company’s actual share price for the related periods. Higher share prices result in a greater number of equivalent premium shares. Details of the calculation underlying the number of premium shares included in the Company’s diluted share count for the periods indicated are as follows (in thousands, except per share amounts):

 	As of and for the Three Months Ended September 30, 2012	 	As of and for the Nine Months Ended September 30, 2012	
 	New 4.0%
Notes	 	New 4.25%
Notes	 	New 4.0%
Notes	 	New 4.25%
Notes	
Principal amount	$	105,322	
 	 	$	97,000	
 	 	$	105,322	
 	 	$	97,000	
 	
Conversion price per share	$	15.76	
 	 	$	15.48	
 	 	$	15.76	
 	 	$	15.48	
 	
Number of conversion shares, principal amount	6,683	
 	 	6,268	
 	 	6,683	
 	 	6,268	
 	
Weighted average actual per share price	$	17.89	
 	 	$	17.89	
 	 	$	17.40	
 	 	$	17.40	
 	
Excess over principal amount	$	14,208	
 	 	$	15,106	
 	 	$	10,975	
 	 	$	12,073	
 	
Weighted average equivalent premium shares (in thousands)	794	
 	 	845	
 	 	631	
 	 	694	

Note 3 – Acquisitions and Other Investments
Allocations of purchase prices for acquisitions are based on estimates of the fair value of consideration paid and the net assets acquired and are subject to adjustment upon finalization of these fair value estimates. During the second quarter of 2011, the Company acquired certain businesses, as discussed below and in Note 3 – Acquisitions and Other Investments of the Company’s financial statements included in its Annual Report on Form 10-K, as amended, for the year ended December 31, 2011. During the second quarter of 2012, the Company revised its preliminary allocations for certain of these acquisitions based on information about the facts and circumstances existing as of the respective dates of such acquisitions and for purchase price adjustments based on the final net assets and net working capital, as prescribed by the relevant purchase agreements. These adjustments resulted in the recognition of, or adjusted the fair values of, certain acquired assets and liabilities, resulting in the revision of comparative prior period financial information. The effects of measurement period adjustments on the allocations of purchase prices for acquired businesses are presented in the Company's financial statements as if the adjustments had been taken into account as of the respective dates of acquisition. All changes that do not qualify as measurement period adjustments are included in current period earnings.
EC Source
In November 2010, MasTec entered into a membership interest purchase agreement and invested $10 million in exchange for a 33% voting interest in EC Source Services LLC (“EC Source”) and a two-year option (the “EC Source Merger Option”) that granted MasTec the right, but not the obligation, to acquire the entirety of EC Source’s outstanding equity pursuant to the terms of a merger agreement. On April 29, 2011, the Company exercised its EC Source Merger Option and, effective May 2, 2011, acquired the remaining 67% membership interest in EC Source for a total ownership percentage of 100%, for an aggregate purchase price composed of 5,129,642 shares of MasTec common stock, valued at $94.2 million, $0.3 million in cash and a five year earn-out, valued at $25.0 million as of the date of acquisition. In addition, we assumed $8.6 million of debt, which relates primarily to equipment loans payable to the former owner of EC Source, of which $8.6 million remains outstanding as of September 30, 2012. The fair value of the 33% equity investment in EC Source was estimated to be $39.6 million immediately before the closing of the merger, resulting in a gain on remeasurement of $29.0 million, which was reflected as a component of other income in the Company’s results of operations during the second quarter of 2011.

11

Table of Contents

The following table summarizes the estimated fair value of consideration paid and the final allocation of purchase price to the fair value of assets acquired and liabilities assumed as of the date of acquisition (in millions).

Purchase price consideration:	 	
Shares transferred	$	94.2	
 	
Cash	0.3	
 	
Fair value of contingent consideration (earn-out liability)	25.0	
 	
Total consideration transferred	$	119.5	
 	
Fair value of equity investment	39.6	
 	
Fair value of total consideration	$	159.1	
 	
Purchase price allocation to identifiable assets acquired and liabilities assumed:	 	
Current assets	$	21.0	
 	
Property and equipment	10.1	
 	
Pre-qualifications	31.3	
 	
Backlog	11.0	
 	
Non-compete agreements	1.5	
 	
Current liabilities	(13.4	)	
Debt	(8.6	)	
Deferred income taxes	(14.5	)	
Total identifiable net assets	$	38.4	
 	
Goodwill	$	120.7	
 	
Total consideration allocated	$	159.1	

EC Source’s earnings have been consolidated as of the effective date of the acquisition, May 2, 2011. Prior to the effective date of the acquisition, the Company’s investment in EC Source was accounted for under the equity method of accounting.
Fabcor
Effective April 1, 2011, MasTec acquired all of the issued and outstanding shares of Fabcor TargetCo Ltd. (“Fabcor Parent” and, together with its wholly-owned Canadian subsidiaries, Fabcor 2001, Inc. and Fabcor Pipelines B.C. Inc., “Fabcor”) for an aggregate purchase price composed of approximately $24.2 million in cash, including a $1.4 million post-closing purchase price adjustment based on Fabcor’s final closing tangible net worth and net working capital, recorded in the second quarter of 2012, and a five year earn-out, valued at $16.9 million as of the date of acquisition. In addition, we assumed $7.0 million of debt, which was repaid immediately.    
The following table summarizes the estimated fair value of consideration paid and the allocation of purchase price as of the date of acquisition (in millions).

Purchase price consideration:	 	
Cash	$	24.2	
 	
Fair value of contingent consideration (earn-out liability)	16.9	
 	
Total consideration transferred	$	41.1	
 	
Purchase price allocation to identifiable assets acquired and liabilities assumed:	 	
Current assets	$	24.3	
 	
Property and equipment	12.8	
 	
Trade names	0.7	
 	
Non-compete agreements	0.1	
 	
Customer relationships	3.1	
 	
Backlog	0.4	
 	
Current liabilities	(24.1	)	
Deferred income taxes and other liabilities	(4.3	)	
Total identifiable net assets	$	13.0	
 	
Goodwill	$	28.1	
 	
Total consideration allocated	$	41.1	

Fabcor’s earnings have been consolidated as of the effective date of the acquisition, April 1, 2011.

12

Table of Contents

Other 2011 Acquisitions
During the second quarter of 2012, $3.9 million of additional goodwill and workers compensation liabilities related to the Halsted Communications, Ltd. ("Halsted") acquisition were recorded as a result of final claims data for the pre-acquisition period. Also, the estimated fair value of the contingent consideration arrangement related to Optima Network Services, Inc. ("Optima") was increased by $1.5 million in the second quarter of 2012 to reflect additional information and analysis. Refer to Note 3 – Acquisitions and Other Investments of the Company’s financial statements included in its Annual Report on Form 10-K, as amended, for the year ended December 31, 2011 for details of the Halsted and Optima acquisitions.
Revenues of $164.7 million and net income of $11.6 million resulting from the year over year incremental impact of the Company’s 2011 acquisitions are included in MasTec’s consolidated results of operations for the nine months ended September 30, 2012.
Other Investments
Through a 60%-owned consolidated subsidiary, MasTec acquired a 34% interest in a rock extraction business in Panama (for a net beneficial ownership interest of 20.4%) during 2010. This investment, which is a component of the Company's discontinued Globetec operation, is accounted for under the equity method of accounting, and is reflected within long-term assets of discontinued operations in the condensed unaudited consolidated financial statements. MasTec performed construction services for this investee and revenues of approximately $0.8 million and $0.7 million are included within the Company's results from discontinued operations for the three months ended September 30, 2012 and 2011, respectively. Revenues of $2.0 million and $2.4 million are included within the Company's results from discontinued operations for the nine months ended September 30, 2012 and 2011, respectively. Receivables from this investee, which are reflected within assets held for sale in the condensed unaudited consolidated financial statements, were approximately $3.9 million and $6.7 million as of September 30, 2012 and December 31, 2011, respectively, of which $1.1 million and $4.3 million, respectively, were classified as long term. In connection with the decision to sell the projects and assets of Globetec, an impairment charge of $4.4 million associated with the outstanding receivable balance from this investee was recognized during the three months ended September 30, 2012. See Note 4 – Discontinued Operations.
The Company has certain other cost and equity method investments. None of these investments was material individually or in the aggregate as of September 30, 2012. No impairment charges related to the Company's cost method investments nor the Company's equity method investments were recorded during the three or nine months ended September 30, 2012 or 2011.

Note 4 – Discontinued Operations
DirectStar
In May 2012, Red Ventures exercised its option to acquire from the Company all of the issued and outstanding equity interests in DirectStar, which provides marketing and sales services on behalf of DIRECTV®. The sale of DirectStar to Red Ventures was consummated in June 2012. The Company sold DirectStar for a net sale price of $98.9 million in cash. The DirectStar Business is presented as a discontinued operation in the Company’s condensed unaudited consolidated financial statements for all periods presented.
The following is a summary of assets and liabilities associated with the DirectStar Business as of the dates as indicated (in millions):

 	May 31,
2012	 	December 31,
2011	
Assets:	 	 	 	
Current assets	$	12.0	
 	 	$	9.8	
 	
Property and equipment, net	1.2	
 	 	1.4	
 	
Goodwill and other intangible assets, net	104.0	
 	 	101.2	
 	
Assets of discontinued operations	$	117.2	
 	 	$	112.4	
 	
Liabilities:	 	 	 	
Accounts payable and accrued expenses	$	10.6	
 	 	$	9.6	
 	
Other current liabilities, including accrued earn-outs	7.4	
 	 	10.6	
 	
Liabilities of discontinued operations	$	18.0	
 	 	$	20.2	

13

Table of Contents

Results from discontinued operations associated with the DirectStar Business for the periods indicated were as follows (in millions):

 	For the Three Months Ended
September 30,	 	For the Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Revenue	$	—	
 	 	$	41.1	
 	 	$	60.2	
 	 	$	114.3	
 	
Income from operations before provision for income taxes	—	
 	 	3.4	
 	 	6.2	
 	 	17.4	
 	
Loss on disposal before provision for income taxes	—	
 	 	—	
 	 	(0.2	)	 	—	
 	
Provision for income taxes	$	—	
 	 	$	(1.3	)	 	$	(2.3	)	 	$	(6.6	)	
Net income from discontinued operations	$	—	
 	 	$	2.1	
 	 	$	3.7	
 	 	$	10.8	

Globetec

In September 2012, the Company's board of directors voted to approve a plan of sale for substantially all of the projects and assets of Globetec. The decision to sell was made after evaluation of, among other things, short and long-term prospects of the Globetec operation. Accordingly, Globetec's projects and assets are reflected as assets and liabilities of discontinued operations in the condensed unaudited consolidated balance sheets for all periods presented, and Globetec's results of operations are presented as discontinued operations in the condensed unaudited statements of operations for all periods presented.

As of September 30, 2012, the carrying value of the subject net assets held-for-sale was $20.6 million. This amount comprises total assets of $25.9 million and total liabilities of $5.3 million. For the three month period ended September 30, 2012, the Company recognized impairment charges of approximately $6.4 million pertaining to goodwill and other intangible assets associated with the Globetec operation. In addition, the Company recognized impairment charges of approximately $6.3 million pertaining to other assets of the Globetec operation, primarily composed of accounts receivable, work in process and other current assets, in connection with its decision to sell substantially all related projects and assets of the Globetec operation. This estimate was based on an evaluation of, among other things, the expected cash flows from the operation of these projects, as well as the estimated net realizable value of the assets to be sold, in light of the Company's plans pertaining to the future operations of Globetec and its decision to sell the related assets.
Management is currently in discussions with at least one potential buyer and is discussing a selling price which considers the Company's view of the estimated fair value of the projects and net assets that have been classified as held-for-sale as of September 30, 2012. The Company's estimates are subject to change in the future. If the Company is not able to sell these projects and assets at the currently estimated selling price, the Company may incur additional impairment charges in the future.
The following is a summary of assets and liabilities associated with the Globetec operation as of the dates as indicated (in millions):

 	September 30,
2012	 	December 31,
2011	
Assets:	 	 	 	
Current assets	$	16.7	
 	 	$	20.8	
 	
Property and equipment, net	2.0	
 	 	2.2	
 	
Goodwill and other intangible assets, net	—	
 	 	6.4	
 	
Other long-term assets	7.2	
 	 	10.5	
 	
Assets of discontinued operations	$	25.9	
 	 	$	39.9	
 	
Liabilities:	 	 	 	
Accounts payable and accrued expenses	$	0.7	
 	 	$	6.1	
 	
Other current liabilities	4.6	
 	 	3.0	
 	
Long-term liabilities	—	
 	 	—	
 	
Liabilities of discontinued operations	$	5.3	
 	 	$	9.1	

14

Table of Contents

Results from discontinued operations associated with Globetec for the periods indicated were as follows (in millions):

 	For the Three Months Ended
September 30,	 	For the Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Revenue	$	4.8	
 	 	$	8.0	
 	 	$	13.5	
 	 	$	20.8	
 	
Loss from operations before benefit from income taxes	(2.6	)	 	(0.8	)	 	(5.8	)	 	(5.2	)	
Impairment of assets, disposal group, before benefit from income taxes	(12.7	)	 	—	
 	 	(12.7	)	 	—	
 	
Benefit from (provision for) income taxes	$	6.0	
 	 	$	(0.3	)	 	$	6.9	
 	 	$	1.3	
 	
Net loss from discontinued operations	$	(9.3	)	 	$	(1.1	)	 	$	(11.6	)	 	$	(3.9	)	

Included within the above results from discontinued operations for the DirectStar Business and Globetec are $0.2 million and $0.3 million of depreciation and amortization for the three month periods ended September 30, 2012 and 2011, respectively, and $0.6 million and $0.8 million of depreciation and amortization for the nine month periods ended September 30, 2012 and 2011, respectively.

Note 5 - Goodwill and Other Intangible Assets
The following table sets forth information for MasTec’s goodwill and intangible assets as of the dates indicated (in millions):

 	September 30,
2012	 	December 31,
2011	
Amortizing intangible assets: (1)	 	 	 	
Gross carrying amount	$	90.9	
 	 	$	95.8	
 	
Less: accumulated amortization	(54.8	)	 	(51.3	)	
Amortizing intangible assets, net	$	36.1	
 	 	$	44.5	
 	
Non-amortizing intangible assets:	 	 	 	
Trade names	28.3	
 	 	28.3	
 	
Pre-qualifications	31.3	
 	 	31.3	
 	
Other	6.6	
 	 	6.6	
 	
Non-amortizing intangible assets	$	66.2	
 	 	$	66.2	
 	
Goodwill	$	724.3	
 	 	$	714.8	
 	
Goodwill and other intangible assets	$	826.6	
 	 	$	825.5	

(1)	Consists principally of customer relationships, trade names and non-compete agreements with finite lives.	
The following table provides a reconciliation of changes in goodwill and other intangible assets for the period indicated (in millions):

 	 	 	Other Intangible Assets	 	 	
 	Goodwill	 	Non-amortizing	 	Amortizing	 	Total	
Balance at December 31, 2011	$	714.8	
 	 	$	66.2	
 	 	$	44.5	
 	 	$	825.5	
 	
Accruals of acquisition-related contingent consideration	9.5	
 	 	 	 	 	 	9.5	
 	
Amortization expense	 	 	 	 	(8.4	)	 	(8.4	)	
Balance at September 30, 2012	$	724.3	
 	 	$	66.2	
 	 	$	36.1	
 	 	$	826.6	

See Note 4 - Discontinued Operations for information pertaining to goodwill and other intangible assets of discontinued operations.

15

Table of Contents

Note 6 – Fair Value of Financial Instruments
The Company’s financial instruments include cash and cash equivalents, accounts and notes receivable, cash collateral deposited with insurance carriers, cash surrender value of life insurance policies, auction rate securities, cost and equity method investments, deferred compensation plan assets and liabilities, accounts payable and other current liabilities, acquisition-related contingent consideration and debt obligations.
Fair value is the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The fair value guidance establishes a valuation hierarchy, which requires maximizing the use of observable inputs. The three levels of inputs that may be used are:
Level 1 - Quoted market prices in active markets for identical assets or liabilities.
Level 2 - Observable market based inputs or other observable inputs.
Level 3 - Significant unobservable inputs that cannot be corroborated by observable market data. These values are generally determined using valuation models incorporating management’s estimates of market participant assumptions.
Carrying amounts and estimated fair values of financial instruments as of the dates indicated were as follows (in millions):

 	September 30, 2012	 	December 31, 2011	
 	Carrying
Amount	 	Fair
Value	 	Carrying
Amount	 	Fair
Value	
Assets	 	 	 	 	 	 	 	
Cash surrender value of life insurance policies	$	11.6	
 	 	$	11.6	
 	 	$	10.6	
 	 	$	10.6	
 	
Auction rate securities	$	14.1	
 	 	$	14.1	
 	 	$	13.6	
 	 	$	13.6	
 	
Liabilities	 	 	 	 	 	 	 	
Acquisition-related contingent consideration	$	79.0	
 	 	$	79.0	
 	 	$	80.5	
 	 	$	80.5	
 	
7.625% senior notes	$	150.0	
 	 	$	156.0	
 	 	$	150.0	
 	 	$	156.4	
 	
Original 4.0% Notes	$	9.7	
 	 	$	13.9	
 	 	$	9.7	
 	 	$	12.5	
 	
Original 4.25% Notes	$	3.0	
 	 	$	4.2	
 	 	$	3.0	
 	 	$	4.0	
 	
New 4.0% Notes	$	100.2	
 	 	$	102.1	
 	 	$	98.2	
 	 	$	99.4	
 	
New 4.25% Notes	$	91.6	
 	 	$	93.7	
 	 	$	89.9	
 	 	$	91.1	

The following methods and assumptions were used to estimate the fair values of financial instruments:
Cash Surrender Value of Life Insurance Policies. Cash surrender values of life insurance policies are based on current cash surrender values as quoted by insurance carriers. Life insurance policies support the Company’s split dollar agreements and deferred compensation plan assets.        
Auction Rate Securities.  The fair value of the Company’s auction rate securities was estimated by an independent valuation firm, Houlihan Capital Advisors, LLC, using a probability weighted discounted cash flow model. See Note 7 - Securities Available for Sale.
Acquisition-Related Contingent Consideration. Acquisition-related contingent consideration in the table above represents the estimated fair value of additional future earn-outs payable for acquisitions of businesses beginning with the acquisition of Precision Pipeline LLC in November of 2009. The fair value of such acquisition-related contingent consideration is based on management’s estimates and entity-specific assumptions, and is evaluated on an ongoing basis.
Debt.  The estimated fair values of the Company’s 7.625% senior notes and Original Notes are based on quoted market prices. The estimated fair value of the debt component of the Company’s New Notes is calculated using an income approach, based on a discounted cash flow model. This method is based on management’s estimates of the Company’s market interest rate for a similar nonconvertible instrument. See Note 10 - Debt.

16

Table of Contents

Assets and Liabilities Measured at Fair Value on a Recurring Basis
As of September 30, 2012, the Company held certain assets and liabilities required to be measured at fair value on a recurring basis. The fair values of financial assets and liabilities measured on a recurring basis were determined using the following inputs as of the dates indicated (in millions):

 	 	 	Fair Value Measurements
Using Inputs Considered as Significant	
 	Fair Value as of
September 30,
2012	 	Level 1	 	Level 2	 	Level 3	
Assets	 	 	 	 	 	 	 	
Cash surrender value of life insurance policies	$	11.6	
 	 	$	11.6	
 	 	—	
 	 	—	
 	
Auction rate securities	$	14.1	
 	 	—	
 	 	—	
 	 	$	14.1	
 	
Liabilities	 	 	 	 	 	 	 	
Acquisition-related contingent consideration	$	79.0	
 	 	—	
 	 	—	
 	 	$	79.0	

 	 	 	Fair Value Measurements
Using Inputs Considered as Significant	
 	Fair Value as of
December 31,
2011	 	Level 1	 	Level 2	 	Level 3	
Assets	 	 	 	 	 	 	 	
Cash surrender value of life insurance policies	$	10.6	
 	 	$	10.6	
 	 	—	
 	 	—	
 	
Auction rate securities	$	13.6	
 	 	—	
 	 	—	
 	 	$	13.6	
 	
Liabilities	 	 	 	 	 	 	 	
Acquisition-related contingent consideration	$	80.5	
 	 	—	
 	 	—	
 	 	$	80.5	

The following tables provide a reconciliation between the beginning and ending balances of items measured at fair value on a recurring basis using significant unobservable inputs as of the dates indicated (in millions).

 	Auction Rate Securities	
Three Months Ended September 30, 2012 and 2011:	Student
Loan	 	Structured
Finance Securities	 	Total	
Assets	 	 	 	 	 	
Balances at June 30, 2012	$	11.7	
 	 	$	1.8	
 	 	$	13.5	
 	
Changes in fair value recorded in earnings	—	
 	 	—	
 	 	—	
 	
Changes in unrealized (losses)/gains included in other comprehensive income	—	
 	 	0.6	
 	 	0.6	
 	
Balances at September 30, 2012	$	11.7	
 	 	$	2.4	
 	 	$	14.1	

Balances at June 30, 2011	$	12.1	
 	 	$	2.3	
 	 	$	14.4	
 	
Changes in fair value recorded in earnings	—	
 	 	(0.5	)	 	(0.5	)	
Changes in unrealized (losses)/gains included in other comprehensive income	(0.3	)	 	—	
 	 	(0.3	)	
Balances at September 30, 2011	$	11.8	
 	 	$	1.8	
 	 	$	13.6	

17

Table of Contents

 	 	 	 	 	 	 	 	

 	Contingent Consideration	 	 	 	 	
Liabilities	
 	 	 	 	 	
Balances at June 30, 2012	$	80.5	
 	 	 	 	 	
Additions from new business combinations	—	
 	 	 	 	 	
Payments of contingent consideration	(1.5	)	 	 	 	 	
Balances at September 30, 2012	$	79.0	

Balances at June 30, 2011	$	80.5	
 	 	 	 	 	
Changes in fair value recorded in earnings	—	
 	 	 	 	 	
Payments of contingent consideration	—	
 	 	 	 	 	
Balances at September 30, 2011	$	80.5	

 	
 	 	 	 	 	 	 	 	 	 	 	 	
 	Auction Rate Securities	
Nine Months Ended September 30, 2012 and 2011:	Student
Loan	 	Structured
Finance Securities	 	Total	
Assets	 	 	 	 	 	
Balances at December 31, 2011	$	11.9	
 	 	$	1.7	
 	 	$	13.6	
 	
Changes in fair value recorded in earnings	—	
 	 	—	
 	 	—	
 	
Changes in unrealized (losses)/gains included in other comprehensive income	(0.2	)	 	0.7	
 	 	0.5	
 	
Balances at September 30, 2012	$	11.7	
 	 	$	2.4	
 	 	$	14.1	

Balances at December 31, 2010	$	16.4	
 	 	$	2.6	
 	 	$	19.0	
 	
Redemption or sale of securities, cost basis	(4.6	)	 	—	
 	 	(4.6	)	
Reversal of unrealized losses on redeemed or sold securities	0.4	
 	 	—	
 	 	0.4	
 	
Changes in fair value recorded in earnings	—	
 	 	(0.5	)	 	(0.5	)	
Changes in unrealized (losses)/gains included in other comprehensive income	(0.4	)	 	(0.3	)	 	(0.7	)	
Balances at September 30, 2011	$	11.8	
 	 	$	1.8	
 	 	$	13.6	

 	
 	 	 	 	 	 	 	 	
Liabilities	Contingent Consideration	 	 	 	 	
Balances at December 31, 2011	$	80.5	
 	 	 	 	 	
Additions from new business combinations	—	
 	 	 	 	 	
Payments of contingent consideration	(1.5	)	 	 	 	 	
Balances at September 30, 2012	$	79.0	

Balances at December 31, 2010	$	45.0	
 	 	 	 	 	
Additions from new business combinations	47.7	
 	 	 	 	 	
Payments of contingent consideration	(12.2	)	 	 	 	 	
Balances at September 30, 2011	$	80.5	

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Assets and liabilities recognized or disclosed at fair value on a nonrecurring basis include items such as equity method investments, goodwill and long-lived assets, which are initially measured at fair value and are subsequently remeasured in the event of an impairment or other measurement event, if applicable. Except for the assets and liabilities associated with the Globetec operation, which the Company reclassified as held-for-sale in the third quarter of 2012 and the Company’s equity investment in EC Source, which was remeasured in connection with the Company’s acquisition of EC Source’s remaining equity interests in the second quarter of 2011, the Company had no significant assets or liabilities required to be measured at fair value on a nonrecurring basis as of either September 30, 2012 or December 31, 2011. Refer to Note 3 – Acquisitions and Other Investments and Note 4 – Discontinued Operations.

Note 7 – Securities Available For Sale
The Company’s securities available for sale consist of auction rate securities, which represent interests in pools of student loans guaranteed by the U.S. government under the Federal Family Education Loan Program and a structured finance security. The structured finance security has an attached credit default swap under which the principal value of the structured finance security would be partially or fully forfeited at net default rates on the underlying corporate debt obligations ranging from 8% to 9%. The net default rate as of

18

Table of Contents

September 30, 2012 was estimated to be 6.23%. Both the structured finance security and the credit default swap are collateralized by investment grade credit-linked notes made up of floating rate international bank notes.
Due to liquidity issues in the auction rate securities market, there was insufficient observable market data to determine the fair values of the Company’s auction rate securities as of September 30, 2012 or December 31, 2011. Therefore, their respective fair values were estimated by an independent valuation firm, Houlihan Capital Advisors, LLC, using a probability weighted discounted cash flow model. This valuation is sensitive to market conditions and management’s judgment and can change significantly based on the assumptions used. The following tables set forth the fair values of the Company’s auction rate securities by type of security and underlying credit rating as of the dates indicated (in millions):

 	 	Underlying Credit Rating (1)	
As of September 30, 2012	 	AAA	 	BB	 	CCC	 	Total	
Student loans	 	$	9.1	
 	 	$	2.6	
 	 	$	—	
 	 	$	11.7	
 	
Structured finance securities	 	—	
 	 	—	
 	 	2.4	
 	 	2.4	
 	
   Total auction rate securities	 	$	9.1	
 	 	$	2.6	
 	 	$	2.4	
 	 	$	14.1	

 	
 	 	 	 	 	 	 	 	 	 	 	 	 	
 	 	Underlying Credit Rating (1)	
As of December 31, 2011	 	AAA	 	CCC	 	Total	
Student loans	 	$	11.9	
 	 	$	—	
 	 	$	11.9	
 	
Structured finance securities	 	—	
 	 	1.7	
 	 	1.7	
 	
   Total auction rate securities	 	$	11.9	
 	 	$	1.7	
 	 	$	13.6	

(1)	The Company’s auction rate securities maintain split ratings. For purposes of this table, securities are categorized according to their lowest rating.	
As of September 30, 2012, the yields on the Company’s auction-rate securities ranged from 1.50% to 2.48%. These yields represent the predetermined “maximum” reset rates that occur upon auction failures according to the specific terms within each security’s governing documents. The issuers have been making interest payments when due.
Auction Rate Securities – Other Than Temporary Losses
The Company’s structured finance security, for which cumulative credit losses of $3.3 million have been recognized through September 30, 2012, had a par value of $5.0 million and a cost basis of $1.7 million as of September 30, 2012. If unrealized losses are believed to be other-than-temporary, an impairment charge is recorded. There were no other-than-temporary impairment charges recognized for the three or nine months ended September 30, 2012. For each of the three and nine months ended September 30, 2011, the Company recognized $0.5 million of other-than-temporary impairment losses in earnings, with a corresponding reduction in the cost basis of the Company’s structured finance auction rate security.
Auction Rate Securities – Reconciliation of Cost Basis to Fair Value    
The Company's student loan auction rate securities have been in a continuous unrealized loss position for over twelve months. The cost basis, gross cumulative unrealized (losses) gains and estimated fair values of the Company’s auction rate securities as of the dates indicated were as follows (in millions):

 	September 30, 2012	
 	  
Adjusted
 Cost Basis (1)	 	Gross Cumulative
Unrealized
(Losses)/Gains	 	Fair Value	
Auction rate securities – student loans	$	12.9	
 	 	$	(1.2	)	 	$	11.7	
 	
Auction rate securities – structured finance securities	1.7	
 	 	0.7	
 	 	2.4	
 	
   Total auction rate securities	$	14.6	
 	 	$	(0.5	)	 	$	14.1	

 	December 31, 2011	
 	 
 Adjusted
Cost Basis (1)	 	Gross Cumulative
   Unrealized
(Losses) Gains	 	Fair Value	
Auction rate securities – student loans	$	12.9	
 	 	$	(1.0	)	 	$	11.9	
 	
Auction rate securities – structured finance securities	1.7	
 	 	—	
 	 	1.7	
 	
   Total auction rate securities	$	14.6	
 	 	$	(1.0	)	 	$	13.6	

(1)	Adjusted cost basis reflects adjustments for credit and other losses recognized in earnings. Cumulative adjustments to the cost basis of securities held as of both September 30, 2012 and December 31, 2011 totaled $3.3 million. Par value of securities held as of both	

19

Table of Contents

September 30, 2012 and December 31, 2011 was $17.9 million.
As of September 30, 2012, contractual maturities of the Company’s student loan auction rate securities ranged from 15 to 35 years, and for the structured finance security, 4 years.

Note 8 - Accounts Receivable, Net of Allowance
Accounts receivable, net of allowance, which is classified as current, is composed of the following as of the dates indicated (in millions):

 	September 30,
2012	 	December 31,
2011	
Contract billings	$	486.2	
 	 	$	389.8	
 	
Retainage	105.5	
 	 	41.7	
 	
Costs and earnings in excess of billings	289.0	
 	 	228.7	
 	
Accounts receivable, gross	$	880.7	
 	 	$	660.2	
 	
Less allowance for doubtful accounts	(7.6	)	 	(7.6	)	
Accounts receivable, net	$	873.1	
 	 	$	652.6	

Retainage, which has been billed, but is not due until completion of performance and acceptance by customers, is generally expected to be collected within one year. Receivables expected to be collected beyond one year are recorded in other long-term assets. The Company maintains an allowance for doubtful accounts for estimated losses, both for specific customers and as a reserve against other balances, resulting from the inability of customers to make required payments.
The Company has trade receivables for certain “pay-when-paid” projects, which provide for payment through September 2016. These receivables, which are included within assets of discontinued operations in the condensed unaudited consolidated financial statements, have been recorded at their respective net present values, with the non-current portion recorded within long-term assets of discontinued operations. Imputed interest is recognized as interest income as earned, and is reflected within the results of operations from discontinued operations. As of September 30, 2012, $6.5 million was outstanding, with $4.7 million recorded in long-term assets of discontinued operations.
Certain of the Company’s international subsidiaries comprised within discontinued operations utilize the factoring of accounts receivable as short-term financing mechanisms. No material factoring transactions were entered into during the three or nine months ended September 30, 2012, and the amount of related receivables outstanding as of September 30, 2012 was not material.

Note 9 – Property and Equipment, Net
Property and equipment, net, including property and equipment held under capital leases, is composed of the following as of the dates indicated (in millions):

 	September 30,
2012	 	December 31,
2011	
Land	$	4.6	
 	 	$	4.7	
 	
Buildings and leasehold improvements	13.5	
 	 	12.5	
 	
Machinery and equipment	439.0	
 	 	381.6	
 	
Office furniture and equipment	90.2	
 	 	76.9	
 	
Total property and equipment	$	547.3	
 	 	$	475.7	
 	
Less accumulated depreciation	(259.8	)	 	(212.7	)	
Property and equipment, net	$	287.5	
 	 	$	263.0	

Depreciation expense from continuing operations for the three months ended September 30, 2012 and 2011 was $19.8 million and $15.7 million, respectively. Depreciation expense from continuing operations for the nine months ended September 30, 2012 and 2011 was $56.6 million and $43.1 million, respectively.

See Note 4 - Discontinued Operations for information pertaining to property & equipment of discontinued operations.

20

Table of Contents

Note 10 – Debt
The carrying value of debt is composed of the following as of the dates indicated (in millions):

Description	 	Maturity Date	 	September 30,
2012	 	December 31,
2011	
Credit facility	 	August 22, 2016	 	$	10.0	
 	 	$	60.0	
 	
7.625% senior notes	 	February 1, 2017	 	150.0	
 	 	150.0	
 	
New 4.0% Notes, $105.3 million principal amount	 	June 15, 2014	 	100.2	
 	 	98.2	
 	
New 4.25% Notes, $97.0 million principal amount	 	December 15, 2014	 	91.6	
 	 	89.9	
 	
Original 4.0% Notes	 	June 15, 2014	 	9.7	
 	 	9.7	
 	
Original 4.25% Notes	 	December 15, 2014	 	3.0	
 	 	3.0	
 	
Capital lease obligations, weighted average interest rate of 3.2%	 	In installments through June 2019	 	54.5	
 	 	40.6	
 	
Notes payable for equipment, weighted average interest rate of 3.8%	 	In installments through October 2015	 	34.0	
 	 	43.4	
 	
Total debt	 	$	453.0	
 	 	$	494.8	
 	
Less current maturities	 	(42.4	)	 	(34.1	)	
Long-term debt	 	$	410.6	
 	 	$	460.7	

Credit Facility    
As of September 30, 2012, the Company had outstanding under its credit facility, also referred to as the “Credit Facility,” revolving loans of $10.0 million and approximately $99.4 million of letters of credit. The remaining $490.6 million of Credit Facility borrowing capacity was available in its entirety for revolving loans or up to $250.6 million of new letters of credit. Outstanding letters of credit mature at various dates and most have automatic renewal provisions, subject to prior notice of cancellation. As of September 30, 2012, interest on outstanding revolving loans accrued at a rate of approximately 2.48% per annum, and interest on outstanding letters of credit accrued at either 1.125% or 2.25% per annum, based on the type of letter of credit issued. The unused facility fee as of September 30, 2012 was 0.40%.
Senior Convertible Notes
During the first quarter of 2011, the Company exchanged $105.3 million of its Original 4.0% Notes and $97.0 million of its Original 4.25% Notes for identical principal amounts of New 4.0% Notes and New 4.25% Notes. The Company has divided the principal balance of the New Notes between the fair value of the debt component and the fair value of the common stock conversion feature. The resulting debt discount of $17.4 million for the New Notes will be accreted to interest expense over the remaining terms of the New Notes. This will increase interest expense during the terms of the New Notes above their 4.0% and 4.25% cash coupon interest rates to an effective combined interest rate of 6.73%. As of September 30, 2012, the remaining period of amortization associated with the debt discount and related financing costs was approximately 2 years. The fair value of the common stock conversion feature was recorded as a component of shareholders’ equity.
The carrying values of the debt and equity components of the New Notes as of September 30, 2012 were as follows (in millions):

 	September 30, 2012	
 	New 4.0% Notes	 	New 4.25% Notes	
Principal amount	$	105.3	
 	 	$	97.0	
 	
Unamortized debt discount and financing costs	(5.1	)	 	(5.4	)	
Net carrying amount of debt component	$	100.2	
 	 	$	91.6	
 	
Carrying amount of equity component	$	8.9	
 	 	$	8.5	

Debt Guarantees and Covenants
The Company’s 7.625% senior notes, New Notes and Original Notes are fully and unconditionally guaranteed on an unsecured, unsubordinated, joint and several basis by the Company's existing and future 100%-owned direct and indirect domestic subsidiaries that are guarantors of the Company's Credit Facility or other outstanding indebtedness.  See supplemental financial information in Note 17 - Supplemental Guarantor Financial Information.
MasTec was in compliance with all provisions and covenants pertaining to its outstanding debt instruments as of September 30, 2012 and December 31, 2011. 

21

Table of Contents

Interest Expense, Net
Details of interest expense, net, classified within continuing operations for the periods indicated is as follows (in millions):

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Interest expense:	 	 	 	 	 	 	 	
Contractual and other interest expense	$	6.9	
 	 	$	6.6	
 	 	$	20.5	
 	 	$	19.3	
 	
Accretion of senior convertible note discount	1.2	
 	 	1.2	
 	 	3.7	
 	 	3.0	
 	
Deferred financing costs and commitment fees	1.4	
 	 	1.3	
 	 	4.0	
 	 	3.3	
 	
Total interest expense	$	9.5	
 	 	$	9.1	
 	 	$	28.2	
 	 	$	25.6	
 	
Interest income	(0.1	)	 	(0.1	)	 	(0.3	)	 	(0.4	)	
Interest expense, net	$	9.4	
 	 	$	9.0	
 	 	$	27.9	
 	 	$	25.2	

Note 11 - Stock-Based Compensation
The Company has certain stock-based compensation plans that have stock options and restricted share awards outstanding as of September 30, 2012. Under plans currently in effect, there were a total of 4,151,282 shares available for grant as of September 30, 2012. Details of total stock-based compensation expense and related tax benefits for the periods indicated were as follows (in millions):

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Stock based compensation expense:	 	 	 	 	 	 	 	
Restricted share awards	$	1.2	
 	 	$	1.0	
 	 	$	3.4	
 	 	$	2.8	
 	
Stock options	—	
 	 	—	
 	 	—	
 	 	—	
 	
 Total stock based compensation expense	$	1.2	
 	 	$	1.0	
 	 	$	3.4	
 	 	$	2.8	
 	
Income tax benefit from stock based compensation:	 	 	 	 	 	 	 	
   Restricted share awards	$	0.6	
 	 	$	0.4	
 	 	$	1.4	
 	 	$	2.1	
 	
Stock options	0.1	
 	 	0.5	
 	 	0.2	
 	 	2.9	
 	
  Total income tax benefit from stock based compensation	$	0.7	
 	 	$	0.9	
 	 	$	1.6	
 	 	$	5.0	
 	
Excess tax benefit from stock based compensation:	 	 	 	 	 	 	 	
Vested restricted shares (1)	$	0.1	
 	 	$	—	
 	 	$	0.1	
 	 	$	1.0	
 	
 Stock options exercised (1)	0.1	
 	 	0.5	
 	 	0.2	
 	 	2.9	
 	
  Total excess tax benefit from stock based compensation	$	0.2	
 	 	$	0.5	
 	 	$	0.3	
 	 	$	3.9	

(1)	Excess tax benefits, which represent cash flows from tax deductions in excess of compensation expense recognized for stock options exercised and vested restricted shares, are classified as financing cash flows in the Company’s condensed unaudited consolidated statements of cash flows.	

During the three and nine month periods ended September 30, 2012, the Company granted 5,286 and 175,290 restricted share awards, respectively. Total unearned compensation related to restricted share awards as of September 30, 2012 was $6.3 million, which is expected to be recognized over a weighted average period of approximately 2 years. The intrinsic value of options exercised during the three and nine month periods ended September 30, 2012 was $0.4 million and $0.7 million, respectively. Proceeds received from options exercised during the three and nine month periods ended September 30, 2012 totaled $0.3 million and $0.6 million, respectively.

Note 12 – Comprehensive Income
Comprehensive income consists of net income, foreign currency translation adjustments, unrealized gains and losses from securities available for sale, and losses from non-controlling interests. See condensed unaudited consolidated statements of comprehensive income for details. Accumulated other comprehensive losses of $5.3 million as of September 30, 2012 and $7.9 million as of December 31, 2011 were primarily attributable to unrealized losses on securities available for sale, net of tax, and foreign currency translation gains and/or losses.

22

Note 13 - Income Taxes

The Company’s consolidated tax rates on income from continuing operations for the three month periods ended September 30, 2012 and 2011 were 39.4% and 36.9%, respectively, and for the nine month periods ended September 30, 2012 and 2011 were 39.4% and 38.4%, respectively. In determining the quarterly provision for income taxes, management uses an estimated annual effective tax rate based on forecasted annual pre-tax income, permanent tax differences, statutory tax rates and tax planning opportunities in the various jurisdictions in which the Company operates. The impact of significant discrete items is separately recognized in the quarter(s) in which they occur.

Note 14 – Commitments and Contingencies
In addition to the matters discussed below, MasTec is subject to a variety of legal cases, claims and other disputes that arise from time to time in the ordinary course of its business. MasTec cannot provide assurance that it will be successful in recovering all or any of the potential damages it has claimed or in defending claims against it.
Legacy Litigation.  MasTec is subject to litigation, some of which dates from the period 2001 through 2006.
 Outstanding Legacy Litigation
The Company was pursuing claims in excess of $5 million against Aon Risk Services, Inc. of Florida ("Aon"), an insurance broker, for breach of contract and breach of fiduciary duty for the losses arising from a denial of insurance coverage. In September 2012, the parties reached an agreement whereby the Company would recover $3.5 million from Aon, which resulted in a small gain considering expenses incurred, in exchange for a release. Payment was received in October 2012, which will be reflected in the Company's results of operations in the fourth quarter of 2012.
The labor union representing the workers of Sistemas e Instalaciones de Telecomunicacion S.A. (“Sintel”), a former MasTec subsidiary that was sold in 1998, filed a claim that initiated an investigative action with the Audiencia Nacional, a Spanish federal court, against Telefonica and dozens of other defendants including current and former officers and directors of MasTec (including Jorge Mas, Chairman of the Company’s Board of Directors) and Sintel, relating to Sintel’s 2000 bankruptcy. The labor union alleged Sintel and its creditors were damaged in the approximate amount of 300 million euros (approximately $386 million as of September 30, 2012). In June 2009, the Audiencia Nacional issued an order that the trial phase was commencing against the MasTec defendants and other defendants.
On June 14, 2012, the Sintel trial began. As a consequence of the MasTec defendant’s arguments and presentation of evidence, a meeting with the prosecutor took place on July 24, 2012. At that meeting, a tentative agreement (the “Agreement”) was reached which would result in the exoneration of the MasTec defendants (including an acknowledgment that the MasTec defendants acted in good faith and did not cause Sintel’s bankruptcy) and the dismissal of all the charges against them (including Jorge Mas, our Chairman). The trial is expected to continue in November 2012 against the non-MasTec defendants.
In order to avoid significant legal fees and the potential liabilities resulting from the actions of other Spanish defendants for which MasTec may be financially responsible under a theory of subsidiary (or vicarious) liability, the uncertainty of a trial before a foreign tribunal such as the Audiencia Nacional and to eliminate management time devoted to this matter, we entered into the Agreement. MasTec recorded a pre-tax charge of approximately $10 million in the third quarter of 2012 in connection with this Agreement, which is included within other expense, net, in the condensed unaudited consolidated financial statements. As part of this Agreement, MasTec would be dismissed from the case with prejudice. This Agreement is subject to further negotiation and satisfaction of several conditions, which currently have not been met. There can be no assurance that the Agreement will be completed.
Other Outstanding Litigation
During 2010 and 2011, pursuant to a written contract, the Company provided certain construction services for the City of Marathon in Marathon, Florida.  We completed those services in 2011. At the end of 2011, the Company had still not been paid for all of the work performed on the project. In December 2011, the Company filed a lawsuit seeking in excess of $6 million against the City of Marathon for breach of contract and against the City of Marathon’s engineers for professional negligence. The City of Marathon and the engineers filed answers denying liability and claiming that the Company breached the contract.  The Company is pursuing and will continue to vigorously pursue these claims.
Other Commitments and Contingencies
Leases.  In the ordinary course of business, the Company enters into non-cancelable operating leases for certain of its facility, vehicle and equipment needs, including related party leases. These leases allow the Company to conserve cash by paying a monthly rental fee for use of the related facilities, vehicles and equipment rather than purchasing them. The terms of these agreements vary from lease to lease, including some with renewal options and escalation clauses. The Company may decide to cancel or terminate a lease before the end of its term, in which case the Company is typically liable for the remaining lease payments under the term of the lease. Rent expense related to operating leases, including short-term rentals, reflected within continuing operations was approximately $69.4 million and $44.3 million for the three month periods ended September 30, 2012 and 2011, respectively, and was approximately $168.2 million and $127.2 million for the nine month periods ended September 30, 2012 and 2011.

23

Table of Contents

Letters of Credit.  In the ordinary course of business, the Company is required to post letters of credit for its insurance carriers, surety bond providers and in support of performance under certain contracts. Such letters of credit are generally issued by a bank or similar financial institution. The letter of credit commits the issuer to pay specified amounts to the holder of the letter of credit if the holder claims that the Company has failed to perform specified actions. If this were to occur, the Company would be required to reimburse the issuer of the letter of credit, which, depending upon the circumstances, could result in a charge to earnings. As of September 30, 2012 and December 31, 2011, the Company had $99.4 million and $90.0 million, respectively, of standby letters of credit issued under its Credit Facility. The Company is not aware of any material claims relating to outstanding letters of credit as of September 30, 2012 and December 31, 2011.
Performance and Payment Bonds.  In the ordinary course of business, MasTec is required by certain customers to provide performance and payment bonds for some of the Company’s contractual commitments related to projects in process. These bonds provide a guarantee to the customer that the Company will perform under the terms of a contract and that the Company will pay subcontractors and vendors. If the Company fails to perform under a contract or to pay subcontractors and vendors, the customer may demand that the surety make payments or provide services under the bond. The Company must reimburse the surety for any expenses or outlays it incurs. As of September 30, 2012, the estimated cost to complete projects secured by the Company’s $987.1 million in performance and payment bonds was $334.8 million. As of December 31, 2011, the estimated cost to complete projects secured by the Company’s $905.7 million in performance and payment bonds was $330.0 million.
Self-Insurance.  MasTec maintains insurance policies subject to per claim deductibles of $1 million for its workers’ compensation policy, $2 million for its general liability policy and $2 million for its automobile liability policy. The Company has excess umbrella coverage up to $100 million per claim and in the aggregate. As of September 30, 2012 and December 31, 2011, MasTec’s liability for unpaid claims and associated expenses, including incurred but not reported losses related to its workers compensation, general liability and automobile liability insurance policies, was $47.4 million and $39.1 million, respectively, of which $30.1 million and $22.3 million, respectively, was reflected within non-current other liabilities.
MasTec also maintains an insurance policy with respect to employee group health claims, which is subject to annual per employee maximum losses of $0.4 million MasTec’s liability for employee group claims as of September 30, 2012 and December 31, 2011 was $1.7 million and $1.4 million, respectively.
The Company is required to post letters of credit and provide cash collateral to certain of its insurance carriers and to obtain surety bonds in certain states in which the Company is self-insured. As of September 30, 2012 and December 31, 2011, these letters of credit amounted to $51.2 million and $51.4 million, respectively. In addition, cash collateral deposited with insurance carriers, which is included in other long-term assets in the consolidated balance sheets, amounted to $2.0 million as of both September 30, 2012 and December 31, 2011. Outstanding surety bonds related to workers’ compensation self-insurance programs amounted to $9.0 million and $7.1 million as of September 30, 2012 and December 31, 2011, respectively.
Employment Agreements.  The Company has employment agreements with certain executives and other employees, which provide for compensation and certain other benefits and for severance payments under certain circumstances. Certain employment agreements also contain clauses that become effective upon a change of control of the Company. Upon the occurrence of any of the defined events in the various employment agreements, the Company would be obligated to pay certain amounts to the relevant employees, which vary with the level of the employees’ respective responsibility.
Collective Bargaining Agreements and Multi-Employer Pension Plans.  Certain of MasTec’s subsidiaries are party to various collective bargaining agreements with unions representing certain of their employees. The agreements require the subsidiaries party to the agreements to pay specified wages, provide certain benefits to their union employees and contribute certain amounts to multi-employer pension plans and employee benefit trusts. The multi-employer pension plan contribution rates are determined annually and assessed on a “pay-as-you-go” basis based on union employee payrolls. The required amount of future contributions cannot be determined for future periods because the number of union employees employed at any given time, and the plans in which they participate, vary depending upon the location and number of ongoing projects and the need for union resources in connection with those projects. The collective bargaining agreements expire at various times and have typically been renegotiated and renewed on terms similar to the ones contained in the expiring agreements.
The Employee Retirement Income Security Act of 1974, as amended by the Multi-Employer Pension Plan Amendments Act of 1980, subjects employers to substantial liabilities in the event of the employer’s complete or partial withdrawal from, or upon termination of, such plans. Under current law regarding employers who are contributors to multi-employer defined benefit plans, a plan’s termination, an employer’s voluntary withdrawal from, or the mass withdrawal of all contributing employers from, an underfunded multi-employer defined benefit plan requires participating employers to make payments to the plan for their proportionate share of the multi-employer plan’s unfunded vested liabilities. Furthermore, the Pension Protection Act of 2006 added new funding rules generally applicable to plan years beginning after 2007 for multi-employer plans that are classified as “endangered,” “seriously endangered,” or “critical” status. If plans in which the Company’s subsidiaries participate are in critical status, benefit reductions may apply and/or the Company could be required to make additional contributions if the plans are determined to be underfunded.
Based upon the information available to the Company from plan administrators as of September 30, 2012, several of the multi-employer pension plans in which the Company’s subsidiaries participate are underfunded. The Pension Protection Act requires that underfunded pension plans improve their funding ratios within prescribed intervals based on the level of their underfunding. In addition, if a multi-employer defined benefit plan fails to satisfy certain minimum funding requirements, the Internal Revenue Service may impose on the employers contributing to such plan a nondeductible excise tax of 5% on the amount of the accumulated funding deficiency. The Company’s

24

Table of Contents

subsidiaries have been notified that certain plans to which they contribute are in “critical” status and require additional contributions in the form of a surcharge on future benefit contributions required for future work performed by union employees covered by these plans. The amount of additional funds the Company may be obligated to contribute in the future cannot be estimated, as such amounts will be based on future levels of work that require the specific use of those union employees covered by these plans.
During the three and nine month periods ended September 30, 2012 and 2011, total contributions to these plans, and the related number of employees covered by these plans, ranged as follows:

 	 	Number of Employees	 	Contributions to
Multi-Employer Plans
(in millions)	

 	 	Low	 	High	 	Pension	 	Post-Retirement Benefit	 	Total	
For the three months ended September 30,	 	 	 	 	 	 	 	 	 	 	
2012	 	1,575	 	2,509	 	$	8.2	
 	 	$	0.8	
 	 	$	9.0	
 	
2011	 	1,254	 	1,538	 	$	4.9	
 	 	$	0.4	
 	 	$	5.3	

For the nine months ended September 30,	 	 	 	 	 	 	 	 	 	 	
2012	 	308	 	2,509	 	$	20.4	
 	 	$	1.8	
 	 	$	22.2	
 	
2011	 	767	 	1,538	 	$	14.7	
 	 	$	0.8	
 	 	$	15.5	

On November 15, 2011, the Company, along with other members of the Pipe Line Contractors Association (“PLCA”), voluntarily withdrew from the Central States Southeast and Southwest Areas Pension Fund (“Central States”), a defined benefit multi-employer pension plan. In connection with this withdrawal, the Company recorded a $6.4 million withdrawal liability based on an estimate provided by the plan administrator of such liability as of the date of withdrawal. The Company withdrew from the Central States Plan in order to mitigate its liability in connection with the plan, which is in critical status; however, the plan has asserted that the PLCA members did not effectively withdraw on November 15, 2011. Although the Company believes that it legally and effectively withdrew from the plan on November 15, 2011, if the plan were to prevail in its assertion that the Company in fact withdrew after that date, then the amount of the Company’s withdrawal liability would increase. In addition, if this plan were to undergo a mass withdrawal, as defined by the Pension Benefit Guaranty Corporation, within the three year period commencing with the beginning of the calendar year during which the Company withdrew from the plan, there could be additional liability. The Company currently does not have plans to withdraw from any other multi-employer pension plan. 
Indemnities. The Company generally indemnifies its customers for the services it provides under its contracts, as well as other specified liabilities, which may subject the Company to indemnity claims, liabilities and related litigation. As of September 30, 2012 and December 31, 2011, the Company was not aware of any material asserted or unasserted claims in connection with these indemnity obligations.
Other Guarantees.  In the ordinary course of its business, from time to time, MasTec guarantees the obligations of its subsidiaries, including obligations under certain contracts with customers, certain lease obligations and in some states, obligations in connection with obtaining contractors’ licenses. MasTec also generally warrants the work it performs for a one to two year period following substantial completion of a project. MasTec has not historically accrued any reserves for potential warranty claims as they have been immaterial.

Note 15 – Concentrations of Risk
The Company had approximately 350 customers as of September 30, 2012, which included some of the largest and most prominent companies in the communications, utilities and government industries. MasTec’s customers include public and private energy providers, pipeline operators, wireless service providers, satellite and broadband operators, local and long distance carriers and government entities. The industries served by MasTec’s customers include, among others: utilities (including electrical utility transmission and distribution; power generation; natural gas and petroleum pipeline infrastructure; wind farms, solar farms and other renewable energy; and industrial infrastructure), communications (including wireless, wireline and satellite communications) and government (including water, sewer and other utility and communications work on military bases).

25

Table of Contents

Customer revenue by industry from continuing operations for the periods indicated is as follows (in millions):

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Communications	$	436.8	
 	 	41	%	 	$	435.8	
 	 	53	%	 	$	1,164.7	
 	 	42	%	 	$	1,101.6	
 	 	52	%	
Utilities	627.3	
 	 	59	%	 	373.4	
 	 	46	%	 	1,617.8	
 	 	58	%	 	981.1	
 	 	47	%	
Government	3.2	
 	 	0	%	 	7.0	
 	 	1	%	 	11.9	
 	 	0	%	 	17.0	
 	 	1	%	
 	$	1,067.3	
 	 	100	%	 	$	816.2	
 	 	100	%	 	$	2,794.4	
 	 	100	%	 	$	2,099.7	
 	 	100	%	
Revenue concentration information, as a percent of total consolidated revenue from continuing operations, is as follows:

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Revenue from top ten customers	67	%	 	73	%	 	66	%	 	73	%	
 	 	 	 	 	 	 	 	
Revenue from specific customers:	 	 	 	 	 	 	 	
AT&T	17	%	 	23	%	 	17	%	 	25	%	
DIRECTV®	16	%	 	22	%	 	17	%	 	19	%	

In addition, the Company derived 11% of revenues from continuing operations for the nine month period ended September 30, 2011 from El Paso Corporation.
Foreign Operations.  The Company has operations in Canada as well as in parts of Latin America and the Caribbean.   For the three months ended September 30, 2012 and 2011, revenues from continuing operations of $33.7 million and $36.2 million, respectively, were derived from foreign operations, and for the nine months ended September 30, 2012 and 2011, revenues from continuing operations of $133.7 million and $55.4 million, respectively, were derived from foreign operations. For the three months ended September 30, 2012 and 2011, revenues within the results of operations from discontinued operations of $1.9 million and $2.3 million, respectively, were derived from foreign operations, and for the nine months ended September 30, 2012 and 2011, revenues within the results of operations from discontinued operations of $4.6 million and $5.7 million, respectively, were derived from foreign operations. In addition, the Company held property and equipment in foreign countries of $12.6 million as of September 30, 2012 and $12.7 million as of December 31, 2011.

Note 16 – Related Party Transactions
MasTec leases employees to a customer, in which Jorge Mas and Jose Mas own a minority interest. For the three month periods ended September 30, 2012 and 2011, MasTec charged approximately $123,000 and $128,000, respectively, to the customer, and charged $382,000 and $345,000, respectively, for the nine month periods ended September 30, 2012 and 2011. As of September 30, 2012 and December 31, 2011, receivables of $843,000 and $860,000, respectively, attributable to this arrangement were outstanding. The Company also provides satellite communication services to this customer. For the three month periods ended September 30, 2012 and 2011, revenues relating to this customer were approximately $318,000 and $331,000, respectively, and for the nine month periods ended September 30, 2012 and 2011, revenues relating to this customer were approximately $924,000 and $938,000. As of September 30, 2012 and December 31, 2011, receivables from this arrangement of approximately $1.1 million and $775,000, respectively, were outstanding.
Split Dollar and Deferred Bonus Agreements
MasTec has a split dollar agreement and deferred bonus agreement with Jorge Mas. The Company made no payments for the three months ended September 30, 2012 in connection with these agreements. The Company paid approximately $284,000 in connection with these agreements for the nine months ended September 30, 2012. No payments were made in connection with these agreements for the three month period ended September 30, 2011. For the nine month period ended September 30, 2011, MasTec paid approximately $283,000 in connection with the split dollar agreements for Jorge Mas. MasTec also has a split dollar agreement and a deferred bonus agreement with Jose Mas. For the three and nine month periods ended September 30, 2012 and 2011, no payments were made in connection with the agreements for Jose Mas.
The Company adjusts the value of life insurance policies associated with the split dollar agreements each period based on their current cash surrender values. The estimated fair value of these life insurance policies as of September 30, 2012 and December 31, 2011 of $8.7 million and $7.9 million, respectively, is included in other assets in the condensed unaudited consolidated balance sheets.

26

Table of Contents

Note 17 – Supplemental Guarantor Financial Information
The senior notes, New Notes and Original Notes are fully and unconditionally guaranteed on an unsecured, unsubordinated, joint and several basis by the Company's existing and future 100%-owned direct and indirect domestic subsidiaries that are guarantors of the Company's Credit Facility or other outstanding indebtedness (the “Guarantor Subsidiaries”).  The Company's subsidiaries organized outside of the U.S. and certain domestic subsidiaries (collectively, the “Non-Guarantor Subsidiaries”) do not guarantee the senior notes, New Notes and Original Notes. The subsidiary guarantees with respect to the senior notes, New Notes and Original Notes are subject to release in certain customary circumstances including upon the sale of a majority of the capital stock or substantially all of the assets of the subsidiary guarantor; if the guarantee under our Credit Facility and other indebtedness is released or discharged (other than due to payment under such guarantee); or when the requirements for legal defeasance are satisfied or the obligations are discharged in accordance with the related indentures.
The following supplemental financial information sets forth the condensed consolidating balance sheets and the condensed consolidating statements of operations and comprehensive income and cash flows for the parent company (MasTec, Inc.), the Guarantor Subsidiaries on a combined basis, the Non-Guarantor Subsidiaries on a combined basis and the eliminations necessary to arrive at the information for the Company as reported on a consolidated basis. Eliminations represent adjustments to eliminate investments in subsidiaries and intercompany balances and transactions between or among MasTec, Inc., the Guarantor Subsidiaries and the Non-Guarantor Subsidiaries.  Investments in subsidiaries are accounted for using the equity method for this presentation. 
CONDENSED UNAUDITED CONSOLIDATING BALANCE SHEET
As of September 30, 2012 (in thousands)

 	MasTec, Inc.	 	Guarantor
Subsidiaries	 	Non-Guarantor
Subsidiaries	 	Eliminations	 	Consolidated
MasTec, Inc.	
Assets	 	 	 	 	 	 	 	 	 	
Current assets	$	—	
 	 	$	973,839	
 	 	$	35,058	
 	 	$	—	
 	 	$	1,008,897	
 	
Current assets of discontinued operations	—	
 	 	8,184	
 	 	8,481	
 	 	—	
 	 	$	16,665	
 	
Property and equipment, net	—	
 	 	276,414	
 	 	11,115	
 	 	—	
 	 	$	287,529	
 	
Goodwill and other intangible assets, net	—	
 	 	795,424	
 	 	31,152	
 	 	—	
 	 	$	826,576	
 	
Net investments in and advances to (from) consolidated affiliates	813,546	
 	 	175,803	
 	 	(25,614	)	 	(963,735	)	 	$	—	
 	
Other assets	7,701	
 	 	39,309	
 	 	28	
 	 	—	
 	 	$	47,038	
 	
Long-term assets of discontinued operations	—	
 	 	751	
 	 	8,444	
 	 	—	
 	 	$	9,195	
 	
Total assets	$	821,247	
 	 	$	2,269,724	
 	 	$	68,664	
 	 	$	(963,735	)	 	$	2,195,900	
 	
Liabilities and Shareholders’ Equity	 	 	 	 	 	 	 	 	 	
Current liabilities	$	21	
 	 	$	719,273	
 	 	$	24,872	
 	 	$	—	
 	 	$	744,166	
 	
Current liabilities of discontinued operations	—	
 	 	—	
 	 	5,334	
 	 	—	
 	 	$	5,334	
 	
Long-term debt	—	
 	 	410,490	
 	 	71	
 	 	—	
 	 	$	410,561	
 	
Other liabilities	—	
 	 	201,732	
 	 	18,141	
 	 	—	
 	 	$	219,873	
 	
Total liabilities	$	21	
 	 	$	1,331,495	
 	 	$	48,418	
 	 	$	—	
 	 	$	1,379,934	
 	
Total shareholders’ equity	$	821,226	
 	 	$	938,229	
 	 	$	20,246	
 	 	$	(963,735	)	 	$	815,966	
 	
Total liabilities and shareholders’ equity	$	821,247	
 	 	$	2,269,724	
 	 	$	68,664	
 	 	$	(963,735	)	 	$	2,195,900	

27

Table of Contents

CONDENSED UNAUDITED CONSOLIDATING BALANCE SHEET
As of December 31, 2011 (in thousands)

 	MasTec, Inc.	 	Guarantor
Subsidiaries	 	Non-Guarantor
Subsidiaries	 	Eliminations	 	Consolidated
MasTec, Inc.	
Assets	 	 	 	 	 	 	 	 	 	
Current assets	$	—	
 	 	$	738,881	
 	 	$	53,328	
 	 	$	—	
 	 	$	792,209	
 	
Current assets of discontinued operations	—	
 	 	22,572	
 	 	8,036	
 	 	—	
 	 	$	30,608	
 	
Property and equipment, net	—	
 	 	251,948	
 	 	11,059	
 	 	—	
 	 	$	263,007	
 	
Goodwill and other intangible assets, net	—	
 	 	793,844	
 	 	31,635	
 	 	—	
 	 	$	825,479	
 	
Net investments in and advances to (from) consolidated affiliates	811,982	
 	 	117,963	
 	 	(41,830	)	 	(888,115	)	 	$	—	
 	
Other assets	7,119	
 	 	47,580	
 	 	1,033	
 	 	—	
 	 	$	55,732	
 	
Long-term assets of discontinued operations	—	
 	 	114,378	
 	 	7,317	
 	 	—	
 	 	$	121,695	
 	
Total assets	$	819,101	
 	 	$	2,087,166	
 	 	$	70,578	
 	 	$	(888,115	)	 	$	2,088,730	
 	
Liabilities and Shareholders’ Equity	 	 	 	 	 	 	 	 	 	
Current liabilities	
 	
 	 	$	527,931	
 	 	$	29,265	
 	 	$	—	
 	 	$	557,196	
 	
Current liabilities of discontinued operations	—	
 	 	20,912	
 	 	8,362	
 	 	—	
 	 	$	29,274	
 	
Long-term debt	—	
 	 	460,603	
 	 	87	
 	 	—	
 	 	$	460,690	
 	
Other liabilities	—	
 	 	209,225	
 	 	21,138	
 	 	—	
 	 	$	230,363	
 	
Total liabilities	$	—	
 	 	$	1,218,671	
 	 	$	58,852	
 	 	$	—	
 	 	$	1,277,523	
 	
Total shareholders’ equity	$	819,101	
 	 	$	868,495	
 	 	$	11,726	
 	 	$	(888,115	)	 	$	811,207	
 	
Total liabilities and shareholders’ equity	$	819,101	
 	 	$	2,087,166	
 	 	$	70,578	
 	 	$	(888,115	)	 	$	2,088,730	

CONDENSED UNAUDITED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
For the Nine Months Ended September 30, 2012 (in thousands)

 	MasTec, Inc.	 	Guarantor
Subsidiaries	 	Non-Guarantor
Subsidiaries	 	Eliminations	 	Consolidated
MasTec, Inc.	
Revenue	$	—	
 	 	$	2,644,197	
 	 	$	152,267	
 	 	$	(2,033	)	 	$	2,794,431	
 	
Costs of revenue, excluding depreciation and amortization	—	
 	 	2,312,564	
 	 	134,525	
 	 	(2,033	)	 	2,445,056	
 	
Depreciation and amortization	1	
 	 	63,403	
 	 	1,721	
 	 	—	
 	 	65,125	
 	
General and administrative expenses	1,052	
 	 	109,454	
 	 	7,686	
 	 	—	
 	 	118,192	
 	
Interest expense, net	—	
 	 	27,880	
 	 	3	
 	 	—	
 	 	27,883	
 	
Other expense, net	—	
 	 	7,775	
 	 	214	
 	 	—	
 	 	7,989	
 	
Income (loss) from continuing operations before provision for income taxes	$	(1,053	)	 	$	123,121	
 	 	$	8,118	
 	 	$	—	
 	 	$	130,186	
 	
Benefit (provision) for income taxes	423	
 	 	(49,766	)	 	(1,886	)	 	—	
 	 	(51,229	)	
Income (loss) from continuing operations	$	(630	)	 	$	73,355	
 	 	$	6,232	
 	 	$	—	
 	 	$	78,957	
 	
Income (loss) from discontinued operations, net of tax	—	
 	 	(6,086	)	 	(1,795	)	 	—	
 	 	(7,881	)	
Equity in income from subsidiaries, net of tax	71,706	
 	 	—	
 	 	—	
 	 	(71,706	)	 	—	
 	
Net income (loss)	$	71,076	
 	 	$	67,269	
 	 	$	4,437	
 	 	$	(71,706	)	 	$	71,076	
 	
Net loss attributable to non-controlling interests	—	
 	 	—	
 	 	(9	)	 	—	
 	 	(9	)	
Net income (loss) attributable to MasTec, Inc.	$	71,076	
 	 	$	67,269	
 	 	$	4,446	
 	 	$	(71,706	)	 	$	71,085	
 	
Comprehensive income (loss)	$	71,415	
 	 	$	67,269	
 	 	$	6,741	
 	 	$	(71,706	)	 	$	73,719	

28

Table of Contents

CONDENSED UNAUDITED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME
For the Nine Months Ended September 30, 2011 (in thousands)

 	MasTec, Inc.	 	Guarantor
Subsidiaries	 	Non-Guarantor
Subsidiaries	 	Eliminations	 	Consolidated
MasTec, Inc.	
Revenue	$	—	
 	 	$	2,036,180	
 	 	$	63,494	
 	 	$	—	
 	 	$	2,099,674	
 	
Costs of revenue, excluding depreciation and amortization	—	
 	 	1,753,352	
 	 	52,645	
 	 	—	
 	 	1,805,997	
 	
Depreciation and amortization	—	
 	 	51,317	
 	 	1,452	
 	 	—	
 	 	52,769	
 	
General and administrative expenses	1,754	
 	 	92,918	
 	 	3,067	
 	 	—	
 	 	97,739	
 	
Interest expense, net	—	
 	 	25,077	
 	 	125	
 	 	—	
 	 	25,202	
 	
Gain on remeasurement of equity interest in acquiree	—	
 	 	(29,041	)	 	—	
 	 	—	
 	 	(29,041	)	
Other expense (income), net	—	
 	 	441	
 	 	(281	)	 	—	
 	 	160	
 	
Income (loss) from continuing operations before provision for income taxes	$	(1,754	)	 	$	142,116	
 	 	$	6,486	
 	 	$	—	
 	 	$	146,848	
 	
Benefit (provision) for income taxes	684	
 	 	(55,378	)	 	(1,680	)	 	—	
 	 	(56,374	)	
Income (loss) from continuing operations	$	(1,070	)	 	$	86,738	
 	 	$	4,806	
 	 	$	—	
 	 	$	90,474	
 	
Income (loss) from discontinued operations, net of tax	—	
 	 	8,682	
 	 	(1,745	)	 	—	
 	 	6,937	
 	
Equity in income from subsidiaries, net of tax	98,481	
 	 	—	
 	 	—	
 	 	(98,481	)	 	—	
 	
Net income (loss)	$	97,411	
 	 	$	95,420	
 	 	$	3,061	
 	 	$	(98,481	)	 	$	97,411	
 	
Net loss attributable to non-controlling interests	—	
 	 	—	
 	 	(31	)	 	—	
 	 	(31	)	
Net income (loss) attributable to MasTec, Inc.	$	97,411	
 	 	$	95,420	
 	 	$	3,092	
 	 	$	(98,481	)	 	$	97,442	
 	
Comprehensive income (loss)	$	97,227	
 	 	$	95,420	
 	 	$	1	
 	 	$	(98,481	)	 	$	94,167	

CONDENSED UNAUDITED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Nine Months Ended September 30, 2012 (in thousands)

 	MasTec, Inc.	 	Guarantor
Subsidiaries	 	Non-Guarantor
Subsidiaries	 	Eliminations	 	Consolidated
MasTec, Inc.	
Net cash provided by (used in) operating activities	$	(891	)	 	$	96,338	
 	 	$	19,223	
 	 	$	—	
 	 	$	114,670	
 	
Cash flows used in investing activities:	 	 	 	 	 	 	 	 	 	
Cash paid for acquisitions, net, including contingent consideration	$	—	
 	 	$	(16,094	)	 	$	(1,402	)	 	$	—	
 	 	$	(17,496	)	
Capital expenditures	—	
 	 	(49,109	)	 	(1,222	)	 	—	
 	 	(50,331	)	
Proceeds from sale of assets	—	
 	 	5,808	
 	 	—	
 	 	—	
 	 	5,808	
 	
Proceeds from disposal of business, net	—	
 	 	97,728	
 	 	—	
 	 	—	
 	 	97,728	
 	
Investments in life insurance policies	(284	)	 	—	
 	 	—	
 	 	—	
 	 	(284	)	
Net cash provided by (used in) investing activities	$	(284	)	 	$	38,333	
 	 	$	(2,624	)	 	$	—	
 	 	$	35,425	
 	
Cash flows (used in) provided by financing activities:	 	 	 	 	 	 	 	 	 	
Proceeds from credit facility	$	—	
 	 	$	631,815	
 	 	$	—	
 	 	$	—	
 	 	$	631,815	
 	
Repayments of credit facility	—	
 	 	(681,815	)	 	—	
 	 	—	
 	 	(681,815	)	
Repayments of other borrowings	—	
 	 	(15,510	)	 	—	
 	 	—	
 	 	(15,510	)	
Proceeds from (repayments of) book overdrafts	—	
 	 	(5,645	)	 	—	
 	 	—	
 	 	(5,645	)	
Payments of capital lease obligations	—	
 	 	(14,790	)	 	(16	)	 	—	
 	 	(14,806	)	
Proceeds from stock options exercises and other share-based awards	1,445	
 	 	—	
 	 	—	
 	 	—	
 	 	1,445	
 	
Excess tax benefit from stock-based compensation	—	
 	 	302	
 	 	—	
 	 	—	
 	 	302	
 	
Purchases of treasury stock	(75,000	)	 	—	
 	 	—	
 	 	—	
 	 	(75,000	)	
Payments of financing costs	—	
 	 	(113	)	 	—	
 	 	—	
 	 	(113	)	
Net financing activities and advances (to) from consolidated affiliates	74,730	
 	 	(58,278	)	 	(16,452	)	 	—	
 	 	—	
 	
Net cash (used in) provided by financing activities	$	1,175	
 	 	$	(144,034	)	 	$	(16,468	)	 	$	—	
 	 	$	(159,327	)	
Net increase (decrease) in cash and cash equivalents	—	
 	 	(9,363	)	 	131	
 	 	—	
 	 	(9,232	)	
Net effect of currency translation on cash	—	
 	 	20	
 	 	115	
 	 	—	
 	 	135	
 	
Cash and cash equivalents - beginning of period	—	
 	 	16,241	
 	 	4,038	
 	 	—	
 	 	20,279	
 	
Cash and cash equivalents - end of period	$	—	
 	 	$	6,898	
 	 	$	4,284	
 	 	$	—	
 	 	$	11,182	
 	
Cash and cash equivalents of discontinued operations	$	—	
 	 	$	684	
 	 	$	26	
 	 	$	—	
 	 	$	710	
 	
Cash and cash equivalents of continuing operations	$	—	
 	 	$	6,214	
 	 	$	4,258	
 	 	$	—	
 	 	$	10,472	

29

Table of Contents

CONDENSED UNAUDITED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Nine Months Ended September 30, 2011 (in thousands)

 	MasTec, Inc.	 	Guarantor
Subsidiaries	 	Non-Guarantor
Subsidiaries	 	Eliminations	 	Consolidated
MasTec, Inc.	
Net cash provided by (used in) operating activities	$	(2,436	)	 	$	(46,552	)	 	$	(14,107	)	 	$	—	
 	 	$	(63,095	)	
Cash flows used in investing activities:	 	 	 	 	 	 	 	 	 	
Cash paid for acquisitions, net, including contingent consideration	$	(31,236	)	 	$	(44,687	)	 	$	(9,444	)	 	$	—	
 	 	$	(85,367	)	
Capital expenditures	—	
 	 	(56,960	)	 	(36	)	 	—	
 	 	(56,996	)	
Proceeds from sale of assets	—	
 	 	4,456	
 	 	—	
 	 	—	
 	 	4,456	
 	
Proceeds from redemption of investments	—	
 	 	4,600	
 	 	—	
 	 	—	
 	 	4,600	
 	
Investments in life insurance policies	(283	)	 	—	
 	 	—	
 	 	—	
 	 	(283	)	
Net cash provided by (used in) investing activities	$	(31,519	)	 	$	(92,591	)	 	$	(9,480	)	 	$	—	
 	 	$	(133,590	)	
Cash flows (used in) provided by financing activities:	 	 	 	 	 	 	 	 	 	
Proceeds from credit facility	$	—	
 	 	$	135,761	
 	 	$	—	
 	 	$	—	
 	 	$	135,761	
 	
Repayments of credit facility	—	
 	 	(108,761	)	 	—	
 	 	—	
 	 	(108,761	)	
Repayments of other borrowings	—	
 	 	(9,098	)	 	—	
 	 	—	
 	 	(9,098	)	
Proceeds from (repayments of) book overdrafts	—	
 	 	22,698	
 	 	—	
 	 	—	
 	 	22,698	
 	
Payments of capital lease obligations	—	
 	 	(12,897	)	 	(29	)	 	—	
 	 	(12,926	)	
Proceeds from stock options exercises and other share-based awards	11,921	
 	 	—	
 	 	—	
 	 	—	
 	 	11,921	
 	
Excess tax benefit from stock-based compensation	—	
 	 	3,942	
 	 	—	
 	 	—	
 	 	3,942	
 	
Purchases of treasury stock	(1,950	)	 	—	
 	 	—	
 	 	—	
 	 	(1,950	)	
Payments of financing costs	—	
 	 	(6,069	)	 	—	
 	 	—	
 	 	(6,069	)	
Net financing activities and advances (to) from consolidated affiliates	23,984	
 	 	(48,823	)	 	24,839	
 	 	—	
 	 	—	
 	
Net cash (used in) provided by financing activities $	$	33,955	
 	 	$	(23,247	)	 	$	24,810	
 	 	$	—	
 	 	$	35,518	
 	
Net increase (decrease) in cash and cash equivalents	—	
 	 	(162,390	)	 	1,223	
 	 	—	
 	 	(161,167	)	
Net effect of currency translation on cash	—	
 	 	—	
 	 	(74	)	 	—	
 	 	(74	)	
Cash and cash equivalents - beginning of period	—	
 	 	177,223	
 	 	381	
 	 	—	
 	 	177,604	
 	
Cash and cash equivalents - end of period	$	—	
 	 	$	14,833	
 	 	$	1,530	
 	 	$	—	
 	 	$	16,363	
 	
Cash and cash equivalents of discontinued operations	$	—	
 	 	$	9,071	
 	 	$	8	
 	 	$	—	
 	 	$	9,079	
 	
Cash and cash equivalents of continuing operations	$	—	
 	 	$	5,762	
 	 	$	1,522	
 	 	$	—	
 	 	$	7,284	

30

Table of Contents

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS
This report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are not historical facts but are the intent, belief, or current expectations of our business and industry and the assumptions upon which these statements are based. While management believes that these forward-looking statements are reasonable as and when made, there can be no assurance that future developments affecting us will be those that we anticipate. All comments concerning our expectations for future revenues and operating results are based on our forecasts for our existing operations and do not include the potential impact of any future acquisitions or dispositions. Words such as “anticipates,” “expects,” “intends,” “will,” “could,” “would,” “should,” “may,” “plans,” “believes,” “seeks,” “estimates” and variations of these words and the negatives thereof and similar expressions are intended to identify forward-looking statements. These statements are not guarantees of future performance and are subject to risks, uncertainties, and other factors, some of which are beyond our control, are difficult to predict, and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements.
These risks and uncertainties include those described in “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and elsewhere in this report and in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011, as amended, including those described under “Risk Factors” in the Form 10-K, as amended, as updated by Item 1A, “Risk Factors” in this report and other of our SEC filings. Forward-looking statements that were true at the time made may ultimately prove to be incorrect or false. Readers are cautioned to not place undue reliance on forward-looking statements, which reflect management’s view only as of the date of this report. We undertake no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results.

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTSOF OPERATIONS
The following is a discussion of our business, financial position and results of operations as of and for the three and nine months ended September 30, 2012 and 2011. This discussion and analysis should be read in conjunction with the audited consolidated financial statements and accompanying notes contained in our Form 10-K, as amended, for the year ended December 31, 2011 and the condensed unaudited consolidated financial statements and notes contained in our subsequent Quarterly Reports on Form 10-Q, including this Form 10-Q.
Business Overview
We are a leading infrastructure construction company operating mainly throughout North America across a range of industries. Our activities include, but are not limited to, the engineering, building, installation, maintenance and upgrade of energy, utility and communications infrastructure, including: electrical utility transmission and distribution, power generation, natural gas and petroleum pipeline infrastructure, wireless, wireline and satellite communications, wind farms, solar farms and other renewable energy, industrial infrastructure and water and sewer systems. Our customers are primarily in the utility, communications and government industries.
Including our predecessor companies, we have been in business for more than 80 years. We offer our services primarily under the MasTec service mark and, as of September 30, 2012, we had approximately 12,900 employees and approximately 380 locations. We have been consistently ranked among the top specialty contractors by Engineering News-Record for the past five years.
We serve a diversified customer base, which includes some of the leading communications and utility companies in the United States. For the quarter ended September 30, 2012, our top ten customers for our continuing operations were AT&T, DIRECTV ® , Energy Transfer Company, Mid-American Energy, Chesapeake Midstream Partners LP, DCP Midstream, Enbridge, Dominion Virginia Power, Duke Energy and enXco. We have longstanding relationships with many customers and often provide services under multi-year master service agreements and other service agreements. Because our business is concentrated among relatively few major customers, our business could be negatively affected if the amount of business we obtain from these customers is reduced or if we complete the required work on projects and cannot replace them with similar projects.
Revenue concentration information, as a percent of total consolidated revenue from continuing operations, is as follows:

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Revenue from top ten customers	67	%	 	73	%	 	66	%	 	73	%	
 	 	 	 	 	 	 	 	
Revenue from specific customers:	 	 	 	 	 	 	 	
   AT&T	17	%	 	23	%	 	17	%	 	25	%	
   DIRECTV®   	16	%	 	22	%	 	17	%	 	19	%	

In addition, we derived 11% of our revenues for the nine month period ended September 30, 2011 from El Paso Corporation.
Our relationship with AT&T is primarily based upon master service agreements, other service agreements and construction/installation contracts for both AT&T’s wireless and wireline infrastructure businesses. Our relationship with DIRECTV ®  is based upon an agreement to provide installation and maintenance services for DIRECTV ® .

31

Table of Contents

In May 2012, Red Ventures exercised its option to purchase the DirectStar Business, and we consummated the sale of the DirectStar Business to Red Ventures in June 2012 for a net sale price of $98.9 million in cash. DirectStar provides marketing and sales services on behalf of DIRECTV ® . The sale of the DirectStar Business reduced our revenues from DIRECTV ® .
Additionally, in September 2012, MasTec's board of directors approved a plan of sale for the projects and net assets of its wholly-owned subsidiary, Globetec Construction LLC and subsidiaries (“Globetec”), to be completed on or before September 30, 2013. In connection with our decision to sell Globetec, we recognized impairment losses of $12.7 million in the third quarter of 2012.
Accordingly, DirectStar and Globetec are each presented as a discontinued operation in the condensed unaudited consolidated financial statements for all periods presented. See Note 4 – Discontinued Operations in the notes to the condensed unaudited consolidated financial statements for additional details.

Overview of Financial Results
Third quarter revenue grew to $1.1 billion, an increase of $251 million, or 31%, from the prior year. Strong end-user demand for power generation and industrial as well as oil and gas pipeline and facility projects contributed to this growth. Costs of revenue, excluding depreciation and amortization, as a percent of revenue increased from 86.1% in the third quarter of 2011 to 86.6% in 2012. This increase was driven primarily by lower margins on oil and gas pipeline and facility projects, as well as certain power generation and industrial projects, as compared with 2011. Depreciation and amortization expense and general and administrative costs also increased, due in part to our 2011 acquisitions, as well as from increased levels of investment in our business. While depreciation and amortization and general and administrative costs increased in dollar terms, as a percentage of revenue they declined versus the same period in the prior year. This improvement is largely due to improved leverage of these costs as a result of higher revenues.
Our third quarter results were also affected by a $9.6 million legal settlement reserve that we recorded in connection with the Sintel legal matter. See Note 14 – Commitments and Contingencies in the notes to the condensed unaudited consolidated financial statements.
Third quarter 2012 income from continuing operations was $36.1 million, or $0.45 cents per diluted share. Third quarter 2012 income from continuing operations includes an after-tax effect of $5.8 million, or $0.07 per share, resulting from the legal settlement charge discussed above. Excluding this charge, third quarter income from continuing operations and diluted earnings per share were $41.9 million and $0.53 cents, respectively. As compared with our third quarter 2011 results, income from continuing operations and diluted earnings per share increased by approximately $11.1 million and $0.18 cents per share, or approximately 36% and 51%, respectively. See "Adjusted Income From Continuing Operations and Adjusted Income From Continuing Operations Per Diluted Share" below.
Diluted earnings per share was also favorably affected by the purchase of treasury shares. Beginning in the fourth quarter of 2011 and as of September 30, 2012, we have repurchased 9.5 million shares of our common stock. In addition, we had fewer dilutive “premium” shares included in our diluted share count as compared with the prior year period due to a lower average stock price. See Note 2 – Earnings Per Share in the notes to the condensed unaudited consolidated financial statements.
Economic, Industry and Market Factors
We recognize that we continue to operate in a challenging business environment, as do our customers. We closely monitor the effects that changes in economic and market conditions may have on our customers. General economic conditions, as well as the highly competitive nature of our industry, have resulted in pricing pressure for the services we provide. Work is often awarded through a bidding process, where price is a principal factor in the selection process. In the face of increased pricing pressure, we strive to maintain our profit margins through productivity improvements and cost reduction programs. Other market and industry factors, such as tightened access to capital for customers in the industries we serve and/or changes to our customers’ capital spending plans, can result, and have resulted, in decreased levels of demand in certain portions of our business, such as our power generation and industrial projects, which were negatively affected by such trends in 2011, and our wireless projects, which have been negatively affected by reduced work order volume during 2012. In addition, we operate in industries affected by market and regulatory impacts beyond our control. Changes in technology, tax and other incentives, renewable energy portfolio standards and new or changing regulatory requirements affecting the industries we serve can impact demand for our services. Fluctuations in market prices for oil, gas and other fuel sources can also impact demand for our oil and gas pipeline and facility construction services, as well as our power generation and industrial construction services. While we actively monitor economic, industry and market factors affecting our business, we cannot predict the impact such factors may have on our future results of operations, liquidity and cash flows.
Impact of Seasonality and Cyclical Nature of Business
Our revenues and results of operations can be subject to seasonal and other variations. These variations are influenced by weather, customer spending patterns, bidding seasons, project schedules and timing, particularly for large non-recurring projects, and holidays. Typically, our revenues are lowest in the first quarter of the year because cold, snowy or wet conditions cause delays. Revenues in the second quarter are typically higher than in the first quarter, as some projects begin, but continued cold and wet weather can often impact second quarter productivity. The third and fourth quarters are typically the best of the year, as a greater number of projects are underway and weather is normally more accommodating to work on projects. In the fourth quarter, many projects tend to be completed by customers seeking to spend their capital budgets before the end of the year, which generally has a positive impact on our revenues. However, the holiday season and inclement weather can cause delays, which could reduce revenues and increase costs on affected projects. Any quarter may be positively or negatively affected by out of the ordinary weather patterns, such as excessive rainfall or warm winter weather, making it difficult to predict quarterly revenue and profitability variations.

32

Table of Contents

Additionally, our industry tends to be highly cyclical. Fluctuations in end-user demand within the industries we serve, or in the supply of services within those industries, can impact demand for our services. As a result, our revenues may be adversely affected by industry declines or by delays in new projects. Variations in project schedules or unanticipated changes in project schedules, in particular in connection with large construction and installation projects, can create fluctuations in revenues, which may adversely affect us in a given period. The financial condition of our customers and their access to capital; variations in project profitability; regional, national and global economic and market conditions; regulatory or environmental influences; and acquisitions, dispositions or strategic investments can also materially affect quarterly results. Accordingly, our operating results in any particular period may not be indicative of the results that can be expected for any other period.
Revenue
Customer revenues from continuing operations by industry for the periods indicated were as follows (in millions):

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Communications	$	436.8	
 	 	41	%	 	$	435.8	
 	 	53	%	 	$	1,164.7	
 	 	42	%	 	$	1,101.6	
 	 	52	%	
Utilities	627.3	
 	 	59	%	 	373.4	
 	 	46	%	 	1,617.8	
 	 	58	%	 	981.1	
 	 	47	%	
Government	3.2	
 	 	0	%	 	7.0	
 	 	1	%	 	11.9	
 	 	0	%	 	17.0	
 	 	1	%	
 	$	1,067.3	
 	 	100	%	 	$	816.2	
 	 	100	%	 	$	2,794.4	
 	 	100	%	 	$	2,099.7	
 	 	100	%	

Approximately 40% of our revenue is derived from projects performed under master service and other service agreements, which are generally multi-year agreements. Certain of our master service agreements are exclusive up to a specified dollar amount per work order for each defined geographic area, but do not obligate our customers to undertake any large infrastructure projects or other work with us. Work performed under master service and other service agreements is typically generated through work orders, each of which is performed for a fixed fee. Services provided under these agreements range from engineering, project management and installation work to maintenance and upgrade services. Master service agreements and other service agreements are frequently awarded on a competitive bidding basis, although customers are sometimes willing to negotiate contract extensions beyond their original terms without re-bidding. Our master service and other service agreements have various terms, depending upon the nature of the services provided, and typically provide for termination on short or no advance notice.
The remainder of our work is generated pursuant to contracts for specific projects or jobs that may require the construction and installation of an entire infrastructure system or specified units within an infrastructure system. Customers are billed with varying frequency, generally monthly or upon attaining specific milestones. Such contracts generally include retainage provisions under which 2% to 15% of the contract price is withheld from us until the work has been completed and accepted by the customer.
Revenues from continuing operations by type of contract for the periods indicated were as follows (in millions):

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Master service and other service agreements	$	424.8	
 	 	40	%	 	$	499.6	
 	 	61	%	 	$	1,207.7	
 	 	43	%	 	$	1,225.9	
 	 	58	%	
Installation/construction project agreements	642.5	
 	 	60	%	 	316.6	
 	 	39	%	 	1,586.7	
 	 	57	%	 	873.8	
 	 	42	%	
 	$	1,067.3	
 	 	100	%	 	$	816.2	
 	 	100	%	 	$	2,794.4	
 	 	100	%	 	$	2,099.7	
 	 	100	%	
        
As shown in the table above, approximately 60% of our third quarter revenues from continuing operations were from non-recurring, project specific work. Seasonality tends to have a greater impact on our non-recurring project revenues. The proportion of our revenues from non-recurring project work in any given quarter can fluctuate based upon our project mix. If we are not able to replace work from completed projects with new project work, we may not be able to maintain our current revenue levels, or our current level of capacity and resource utilization. We actively review our backlog of project work and take appropriate action to minimize such exposure.

33

Table of Contents

Backlog
Estimated backlog represents the amount of revenue we expect to realize over the next 18 months from future work on uncompleted contracts, including new contractual agreements on which work has not begun. Our backlog estimates include amounts under master service and other service agreements in addition to construction projects. We determine the amount of backlog for work under master service and other service agreements based on historical trends, anticipated seasonal impacts and estimates of customer demand based on communications with our customers. The following presents 18-month backlog for our business as of the dates indicated (in millions):

 	As of September 30, 2012	 	As of December 31, 2011 (1)	
Estimated 18-month backlog	$	3,330	
 	 	$	3,092	

(1)	Backlog attributable to Globetec and the DirectStar Business of approximately $247 million has been removed from previously reported figures due to the reclassification of Globetec and the DirectStar Business as discontinued operations.	
While our backlog estimates include amounts under master service and other service agreements, our customers are not contractually committed to purchase a minimum amount of services under these agreements, most of which can be canceled on short or no advance notice. There can be no assurance as to our customers’ requirements or that our estimates are accurate. In addition, timing of revenues for construction and installation projects included in our backlog can be subject to change as a result of customer delays, regulatory requirements and other project related factors. These changes could cause estimated revenues to be realized in periods later than originally expected, or not at all. As a result, our backlog as of any particular date is an uncertain indicator of future revenues and earnings.
Critical Accounting Policies and Estimates
This discussion and analysis of our financial condition and results of operations is based upon our condensed unaudited consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”). The preparation of these financial statements requires us to make estimates and judgments that affect the amounts reported in our financial statements and the accompanying notes. On an on-going basis, we evaluate our estimates, including those related to revenue recognition, estimates to complete and provisions for contract losses, allowances for doubtful accounts, accrued self-insured claims, estimated fair values of goodwill and intangible assets, acquisition-related contingent consideration, assets and liabilities classified as held-for-sale, securities available for sale and certain convertible debt obligations, reserves and accruals, impairment of assets, income taxes and litigation and contingencies. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis of making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. As management estimates, by their nature, involve judgment regarding future uncertainties, actual results may differ from these estimates if conditions change or if certain key assumptions used in making these estimates ultimately prove to be materially incorrect. Refer to Note 1 – Business, Basis of Presentation and Significant Accounting Policies in the notes to our condensed unaudited consolidated financial statements of this Quarterly Report on Form 10-Q and to our most recent Annual Report on Form 10-K, as amended, for further information regarding our critical accounting policies and estimates.

34

Table of Contents

Results of Operations
Comparison of Quarterly Results
The following table reflects our consolidated results of operations in dollar and percentage of revenue terms for the periods indicated (dollar amounts in millions):

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Revenue	$	1,067.3	
 	 	100.0	 %	 	$	816.2	
 	 	100.0	 %	 	$	2,794.4	
 	 	100.0	 %	 	$	2,099.7	
 	 	100.0	 %	
Costs of revenue, excluding depreciation and amortization	924.3	
 	 	86.6	 %	 	703.0	
 	 	86.1	 %	 	2,445.1	
 	 	87.5	 %	 	1,806.0	
 	 	86.0	 %	
Depreciation and amortization	22.6	
 	 	2.1	 %	 	19.6	
 	 	2.4	 %	 	65.1	
 	 	2.3	 %	 	52.8	
 	 	2.5	 %	
General and administrative expenses	42.5	
 	 	4.0	 %	 	35.2	
 	 	4.3	 %	 	118.2	
 	 	4.2	 %	 	97.7	
 	 	4.7	 %	
Interest expense, net	9.4	
 	 	0.9	 %	 	9.0	
 	 	1.1	 %	 	27.9	
 	 	1.0	 %	 	25.2	
 	 	1.2	 %	
Other expense (income), net	8.9	
 	 	0.8	 %	 	0.6	
 	 	0.1	 %	 	7.9	
 	 	0.4	 %	 	(28.9	)	 	(1.4	)%	
Income from continuing operations before provision for income taxes	$	59.6	
 	 	5.6	 %	 	$	48.8	
 	 	6.0	 %	 	$	130.2	
 	 	4.6	 %	 	$	146.9	
 	 	7.0	 %	
Provision for income taxes	(23.5	)	 	(2.2	)%	 	(18.0	)	 	(2.2	)%	 	(51.2	)	 	(1.8	)%	 	(56.4	)	 	(2.7	)%	
Income from continuing operations before non-controlling interests	$	36.1	
 	 	3.4	 %	 	$	30.8	
 	 	3.8	 %	 	$	79.0	
 	 	2.8	 %	 	$	90.5	
 	 	4.3	 %	
(Loss) income from discontinued operations, net of tax	(9.3	)	 	(0.9	)%	 	1.0	
 	 	0.1	 %	 	(7.9	)	 	(0.3	)%	 	6.9	
 	 	0.3	 %	
 Net income	$	26.8	
 	 	2.5	 %	 	$	31.8	
 	 	3.9	 %	 	$	71.1	
 	 	2.5	 %	 	$	97.4	
 	 	4.6	 %	
Net loss attributable to non-controlling interests	—	
 	 	—	 %	 	—	
 	 	—	 %	 	—	
 	 	—	 %	 	—	
 	 	—	 %	
Net income attributable to MasTec	$	26.8	
 	 	2.5	 %	 	$	31.8	
 	 	3.9	 %	 	$	71.1	
 	 	2.5	 %	 	$	97.4	
 	 	4.6	 %	

Three Months Ended September 30, 2012 Compared to Three Months Ended September 30, 2011 
Revenue. Our revenue was $1.1 billion for the three months ended September 30, 2012, as compared with $816.2 million for the same period in 2011, representing an increase of approximately $251.1 million or 30.8%. Third quarter 2012 revenues were favorably affected by demand for our power generation and industrial, electrical transmission and oil and gas pipeline and facility services. Key customers driving growth during the second quarter of 2012 included Chesapeake Midstream Partners LP, Mid-American Energy and Energy Transfer Company. Revenue from power generation and industrial projects of $201.9 million increased by approximately $176.9 million for the three months ended September 30, 2012 as compared to the same period in the prior year. The growth in power generation and industrial project work has been driven largely by customers seeking to complete wind installation projects under the current federal production tax credit program, which requires that qualified facilities be placed in service by December 31, 2012. In addition, solar project activity increased versus the prior year. Third quarter 2012 oil and gas pipeline and facility project work benefited from approximately $72.3 million of incremental revenue from natural gas and petroleum pipeline infrastructure project activities.

Costs of revenue, excluding depreciation and amortization. Our costs of revenue, excluding depreciation and amortization, were $924.3 million, or 86.6% of revenue, for the three months ended 2012, compared to $703.0 million, or 86.1% of revenue, for the corresponding period in 2011, a $221.3 million, or 31.5%, increase. The dollar increase is partially attributable to higher costs associated with increased revenues, as described above. Costs of revenue, excluding depreciation and amortization, increased 50 basis points as a percentage of revenue. Material costs as a percentage of revenue increased by approximately 260 basis points, resulting, in part, from changes in our project mix as compared with 2011. Our power generation and industrial projects, which increased as a proportion of our total revenues, had higher material cost requirements as compared with our mix of project work in the prior year. The increase in material costs as a percentage of revenue was partially offset by a 120 basis point decrease in wage costs, including subcontractor expenses, as a percentage of revenue. In addition, fuel costs as a percent of revenue decreased by approximately 50 basis points as a percentage of revenue due to lower fuel prices, as well as from changes in project mix.
Depreciation and amortization.  Depreciation and amortization was $22.6 million, or 2.1% of revenue, for the three months ended September 30, 2012 as compared with $19.6 million, or 2.4% of revenue, for the same period in 2011, representing an increase of approximately $3.0 million, or 15.3%. The increase in depreciation expense resulted from capital spending beginning in the second half of 2011 to support growth in project activity levels. Increased depreciation expense for the quarter ended September 30, 2012 was partially offset by a decrease of approximately $1.0 million in amortization expense from historical acquisitions.

35

Table of Contents

General and administrative expenses. General and administrative expenses were $42.5 million, or approximately 4.0% of revenue, for the three months ended September 30, 2012 as compared with $35.2 million, or 4.3% of revenue, for the same period in 2011, representing an increase of $7.3 million, or approximately 20.7%. The dollar increase resulted from higher labor and other administrative costs associated with growth in our business. As a percentage of revenue, general and administrative costs decreased by 30 basis points.
Interest expense, net.  Interest expense, net of interest income, was $9.4 million, or approximately 0.9% of revenue, for the three months ended September 30, 2012, as compared with $9.0 million, or 1.1% of revenue, for the same period in 2011, an increase of approximately $0.4 million. The increase was largely attributable to interest expense related to higher average outstanding balances under our Credit Facility.
Other expense (income), net.  Other expense, net, was $8.9 million for three months ended September 30, 2012, as compared with other expense, net, of $0.6 million for the three months ended September 30, 2011, an increase of $8.3 million. The increase was driven primarily by a $9.6 million legal settlement reserve that we recorded in connection with the Sintel legal matter in the third quarter of 2012, offset, in part, by changes in gains and losses on sales of assets. Gains on sales of assets were $0.6 million for the three months ended September 30, 2012, as compared with losses on sales of assets of $0.6 million for the same period in 2011. See Note 14 – Commitments and Contingencies in the notes to the condensed unaudited consolidated financial statements for details of the Sintel legal matter.
Income taxes. Income taxes were $23.5 million for the three months ended September 30, 2012, as compared with $18.0 million for the three months ended September 30, 2011, representing an increase of approximately $5.5 million. This increase is primarily attributable to higher income and a higher expected tax rate. Our effective tax rate on income from continuing operations was 39.4% for the three months ended September 30, 2012 as compared with approximately 36.9% for the same period in the prior year. The higher current year effective tax rate is principally attributable to a higher effective state tax rate.
(Loss) income from discontinued operations.  Losses from discontinued operations of $9.3 million for the quarter ended September 30, 2012 were driven primarily by impairment charges of $12.7 million in connection with our decision to sell the Globetec operation. Income from discontinued operations, net of tax, was $1.0 million for the quarter ended September 30, 2011. See Note 4 – Discontinued Operations in the notes to the condensed unaudited consolidated financial statements for additional details.

Nine Months Ended September 30, 2012 Compared to Nine Months Ended September 30, 2011  
Revenue. Our revenue was $2.8 billion for the nine months ended September 30, 2012, as compared with $2.1 billion for the same period in 2011, representing an increase of $694.7 million or 33.1%. Of this increase, $164.7 million, or approximately 23.7%, was attributable to businesses acquired in 2011. Organic revenues increased by $530.0 million, or 25.2%. Revenues for the nine months ended September 30, 2012 were favorably affected by demand for our power generation and industrial, oil and gas pipeline and facility, electrical transmission and install-to-the-home services. Key customers driving this growth included Mid-American Energy, Duke Energy and Chesapeake Midstream Partners LP. Revenue from power generation and industrial projects increased by $395.3 million to almost $500.9 million for the nine months ended September 30, 2012 as compared with 2011. The growth in power generation and industrial project work has been driven largely by customers seeking to complete wind installation projects under the current federal production tax credit program, which requires that qualified facilities be placed in service by December 31, 2012. In addition, solar project activity increased versus the prior year. Oil and gas pipeline and facility project work benefited from approximately $137.5 million of incremental revenue from natural gas and petroleum pipeline infrastructure project activities for the nine month period ended September 30, 2012 as compared with 2011. Acquisitions contributed approximately $46.2 million of oil and gas pipeline and facility revenues for the nine months ended September 30, 2012.
Electrical transmission project activity increased by approximately $119.8 million, including approximately $56.3 million of revenue from acquired businesses. Continued strong demand for install-to-the-home project work, in addition to expansion into the northeastern United States as a result of our 2011 acquisition of Halsted, yielded approximately $62.8 million of increased revenues from install-to-the-home projects for the nine months ended September 30, 2012 as compared with 2011. Approximately $52.4 million of this increase resulted from the Halsted acquisition.
Costs of revenue, excluding depreciation and amortization.  Our costs of revenue, excluding depreciation and amortization, were $2.4 billion, or 87.5% of revenue, for the nine months ended September 30, 2012, compared to $1.8 billion, or 86.0% of revenue, for the corresponding period in 2011, a $639.1 million, or 35.4%, increase. The dollar increase is partially attributable to higher costs associated with increased revenues, as described above. Costs of revenue, excluding depreciation and amortization, increased 150 basis points as a percentage of revenue. Material costs as a percentage of revenue increased by 330 basis points. Changes in our project mix have increased our material costs as a percent of revenue as compared with 2011. Our power generation and industrial and electrical transmission project work, both of which increased as a proportion of our total revenues, had higher material cost requirements as compared with our mix of project work in the prior year. In addition, we incurred approximately $25 million of losses on two pipeline projects in the second quarter of 2012. Partially offsetting these increases were a 50 basis point decrease in fuel costs as a percentage of revenue due to lower fuel prices and changes in project mix as well as a 40 basis point decrease in equipment related maintenance costs and a 30 basis point decrease in wage costs, including subcontractor expenses.
Depreciation and amortization.  Depreciation and amortization was $65.1 million, or 2.3% of revenue, for the nine month period ended September 30, 2012, as compared with $52.8 million, or 2.5% of revenue, for the same period in 2011, representing an increase of approximately $12.3 million, or 23.3%. The increase was driven by $11.5 million of higher organic business depreciation expense, as well as $4.2 million of acquisition-related depreciation and amortization. The increase in organic business depreciation expense resulted from

36

Table of Contents

increased capital spending beginning in the second half of 2011 to support growth in project activity levels. Increased depreciation expense for the nine months ended September 30, 2012 was partially offset by a decrease of approximately $3.4 million in amortization expense from historical acquisitions.
General and administrative expenses. General and administrative expenses were $118.2 million, or 4.2% of revenue, for the nine month period ended September 30, 2012 as compared with $97.7 million, or 4.7% of revenue, for the same period in 2011, representing an increase of $20.5 million, or 21.0%. The dollar increase resulted in part from incremental costs of approximately $7.9 million in support of businesses acquired in 2011, as well as from higher labor, information technology and other administrative costs associated with growth in our business. As a percentage of revenue, general and administrative costs decreased by approximately 50 basis points.
Interest expense, net.  Interest expense, net of interest income, was $27.9 million, or 1.0% of revenue, for the nine month period ended September 30, 2012, as compared with $25.2 million, or 1.2% of revenue, for the same period in 2011, an increase of $2.7 million. The increase was largely attributable to an increase in interest expense of approximately $1.5 million related to higher average outstanding balances under our Credit Facility, as well as $0.6 million of incremental discount accretion associated with our New Convertible Notes (see “Senior Convertible Notes” below).
Other expense (income), net.  Other expense, net, was $7.9 million for nine month period ended September 30, 2012, as compared with $28.9 million of other income, net, for the nine month period ended September 30, 2011. The decrease in other income, net, is attributable, in part, to the $29.0 million gain on remeasurement of our equity investment in EC Source, which was recognized in the second quarter of 2011. In addition, in the third quarter of 2012, we recorded a $9.6 million legal settlement reserve in connection with the Sintel legal matter. See Note 14 – Commitments and Contingencies in the notes to the condensed unaudited consolidated financial statements.
Income taxes. Income taxes were $51.2 million for the nine month period ended September 30, 2012, as compared with $56.4 million for the nine month period ended September 30, 2011, representing a decrease of approximately $5.2 million. This decrease is primarily attributable to lower income, partially offset by the impact of a higher expected tax rate. Our effective tax rate on income from continuing operations was 39.4% for the nine month period ended September 30, 2012 as compared with an effective tax rate of 38.4% for the same period in the prior year. The higher current year effective tax rate is principally attributable to a higher effective state tax rate.
(Loss) income from discontinued operations.  Loss from discontinued operations, net of tax, was $7.9 million for the nine month period ended September 30, 2012 as compared with $6.9 million of income from discontinued operations in the prior year period, a variance of $14.8 million, driven primarily by impairment charges of $12.7 million recognized in the third quarter of 2012 in connection with our decision to sell the Globetec operation. Additionally, we had lower current year revenues and income associated with the DirectStar Business as a result of the sale of this business in June 2012. See Note 4 – Discontinued Operations in the notes to the condensed unaudited consolidated financial statements for additional details.

Diluted Weighted Average Shares Outstanding

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
 	2012	 	2011	 	2012	 	2011	
Diluted weighted average shares outstanding (in thousands)	79,526	
 	 	89,324	
 	 	81,982	
 	 	86,933	

We had 79.5 million and 82.0 million diluted shares outstanding for the three and nine month periods ended September 30, 2012, respectively, as compared with 89.3 million and 86.9 million shares outstanding, respectively, for the same periods in 2011. Several transactions affected our diluted share count from 2011 to 2012. During the second quarter of 2011, we issued 5.1 million shares in connection with the acquisition of EC Source. In addition, as of September 30, 2012, we repurchased a total of 9.5 million shares under a share repurchase program approved by our Board of Directors in the fourth quarter of 2011. The exchange of 94% of our Original Convertible Notes for New Convertible Notes in the first quarter of 2011 also affected our outstanding share count due to the change in our actual average stock price, which resulted in 1.3 million and 2.0 million fewer shares in our diluted share count for the three and nine month periods ended September 30, 2012, respectively, as compared with the same periods in 2011. See Note 2 – Earnings Per Share as well as Note 3 – Acquisitions and Other Investments in the notes to the condensed unaudited consolidated financial statements contained for additional details.

Non-U.S. GAAP Financial Measures
As appropriate, we supplement the reporting of our financial information determined in accordance with U.S. GAAP with certain non-U.S. GAAP financial measures, including earnings before interest, taxes, depreciation and amortization (“EBITDA”); and we have presented adjusted income from continuing operations (“Adjusted Income From Continuing Operations”), adjusted income from continuing operations per diluted share (“Adjusted Income From Continuing Operations Per Diluted Share”) and “Adjusted EBITDA,” all of which exclude the $9.6 million legal settlement reserve we recorded in the third quarter of 2012 and the $29.0 million non-cash gain on remeasurement of our equity investment in EC Source that we recorded in the second quarter of 2011. See Note 14 - Commitments and Contingencies and Note 3 – Acquisitions and Other Investments in the notes to the condensed unaudited consolidated financial statements for additional details. We believe these non-U.S. GAAP measures provide meaningful information that helps investors understand our financial results and assess our prospects for future performance. Because non-U.S. GAAP financial measures are not standardized, it may not be possible to compare these financial measures with other companies' non-U.S. GAAP financial measures having the same or similar names.

37

Table of Contents

These financial measures should not be considered in isolation or as a substitute for reported income from continuing operations and income from continuing operations per diluted share. These non-U.S. GAAP financial measures reflect an additional way of viewing aspects of our operations that, when viewed with our U.S. GAAP results and the provided reconciliations to the corresponding U.S. GAAP financial measures, provide a more complete understanding of our business. We strongly encourage investors and shareholders to review our financial statements and publicly filed reports in their entirety and not rely on any single financial measure.

EBITDA and Adjusted EBITDA
EBITDA is a non-U.S. GAAP financial measure that reflects earnings from continuing operations excluding the impact of interest expense, provision for income taxes, depreciation and amortization. Adjusted EBITDA, which is a non-U.S. GAAP financial measure, is calculated for the three and nine months ended September 30, 2012 as EBITDA excluding the $9.6 million legal settlement reserve we recorded in the third quarter of 2012. In 2011, Adjusted EBITDA for the nine months ended September 30, 2011 is calculated as EBITDA excluding the $29.0 million non-cash gain on remeasurement of our equity investment in EC Source, which was recorded in the second quarter of 2011. We use EBITDA and Adjusted EBITDA to evaluate our performance, both internally and versus our peers, because it excludes certain items that may not be indicative of our core operating results, as well as items that can vary widely across different industries or among companies within the same industry. Management also considers EBITDA and Adjusted EBITDA as indicators of our ability to generate cash, which can be used to measure our ability to service debt, fund capital expenditures and expand our business.
Interest expense can be dependent upon a company’s capital structure, debt levels and credit ratings. Accordingly, the impact of interest expense on earnings can vary significantly among companies. During 2012, our interest expense increased as a result of higher average balances outstanding under our Credit Facility. During 2011, our interest expense increased as a result of accretion expense associated with the New Convertible Notes, which were issued during the first quarter of 2011. The debt discount associated with these notes will be accreted to interest expense over the remaining terms of the New Convertible Notes, which will increase interest expense above the New Convertible Notes’ 4.0% and 4.25% cash coupon interest rates. 
Tax positions of companies can vary because of differing abilities to take advantage of tax benefits and because of the tax policies of the jurisdictions in which they operate. As a result, effective tax rates and provisions for income taxes can vary considerably among companies and over time. For example, our effective tax rate on income from continuing operations for the nine months ended September 30, 2012 increased to 39.4% from 38.4% for the same period in the prior year.
Depreciation and amortization can also affect comparability because companies utilize productive assets of different ages and use different methods of both acquiring and depreciating productive assets. These differences can result in considerable variability in the relative costs of productive assets and depreciation and amortization expense among companies.
EBITDA and Adjusted EBITDA should not be considered in isolation from, and are not intended to represent an alternative measure of, operating results or net income as determined in accordance with U.S. GAAP. The definitions of EBITDA and Adjusted EBITDA above are not the same as in our credit facility or in the indentures governing our notes; therefore, EBITDA and Adjusted EBITDA as presented in this discussion should not be used for purposes of determining our compliance with related covenants.
The following table reflects a reconciliation of EBITDA and Adjusted EBITDA, in dollar and percentage of revenue terms, for the periods indicated (dollar amounts in millions). The table below may contain slight summation differences due to rounding.

 	Three Months Ended
September 30,	 	Nine Months Ended
September 30,	
EBITDA and Adjusted EBITDA Reconciliation:	2012	 	2011	 	2012	 	2011	
Income from continuing operations	$	36.1	
 	 	3.4	%	 	$	30.8	
 	 	3.8	%	 	$	79.0	
 	 	2.8	%	 	$	90.5	
 	 	4.3	 %	
Legal settlement reserve	9.6	
 	 	0.9	%	 	—	
 	 	—	%	 	9.6	
 	 	0.3	%	 	—	
 	 	—	 %	
Gain from remeasurement of equity interest in acquiree	—	
 	 	—	%	 	—	
 	 	—	%	 	—	
 	 	—	%	 	(29.0	)	 	(1.4	)%	
Interest expense, net	9.4	
 	 	0.9	%	 	9.0	
 	 	1.1	%	 	27.9	
 	 	1.0	%	 	25.2	
 	 	1.2	 %	
Provision for income taxes	23.5	
 	 	2.2	%	 	18.0	
 	 	2.2	%	 	51.2	
 	 	1.8	%	 	56.4	
 	 	2.7	 %	
Depreciation and amortization	22.6	
 	 	2.1	%	 	19.6	
 	 	2.4	%	 	65.1	
 	 	2.3	%	 	52.8	
 	 	2.5	 %	
EBITDA and Adjusted EBITDA – continuing operations	$	101.3	
 	 	9.5	%	 	$	77.4	
 	 	9.5	%	 	$	232.8	
 	 	8.3	%	 	$	195.8	
 	 	9.3	 %	

38

Table of Contents

Adjusted Income From Continuing Operations and Adjusted Income From Continuing Operations Per Diluted Share
We also present Adjusted Income From Continuing Operations and Adjusted Income From Continuing Operations Per Diluted Share. Management believes that Adjusted Income From Continuing Operations and Adjusted Income From Continuing Operations Per Diluted Share are important indicators of our operations because they exclude items that may not be indicative of, or are unrelated to, our core operating results, and provide a baseline for analyzing trends in our underlying business.  The following table presents Adjusted Income From Continuing Operations and Adjusted Income From Continuing Operations Per Diluted Share:

 	Three Months Ended	 	Nine Months Ended	
 	September 30, 2012	 	September 30, 2011	 	September 30, 2012	 	September 30, 2011	
Adjusted Income From Continuing Operations (in millions)	$	41.9	
 	 	$	30.8	
 	 	$	84.8	
 	 	$	72.6	
 	
Adjusted Income From Continuing Operations Per Diluted Share	$	0.53	
 	 	$	0.35	
 	 	$	1.04	
 	 	$	0.84	

The tables below reconcile Adjusted Income From Continuing Operations and Adjusted Income From Continuing Operations Per Diluted Share with reported income from continuing operations and reported income from continuing operations per diluted share, the most directly comparable U.S. GAAP financial measures. The tables below may contain slight summation differences due to rounding.

 	Three Months Ended	
 	September 30, 2012	 	September 30, 2011	
 	Income From Continuing Operations
 (in millions)	 	Income From Continuing Operations
Attributable to MasTec per
Diluted Share	 	Income From Continuing Operations
 (in millions)	 	Income From Continuing Operations
Attributable to MasTec per
Diluted Share	
Reported U.S GAAP measure	$	36.1	
 	 	$	0.45	
 	 	$	30.8	
 	 	$	0.35	
 	
Legal settlement reserve (a)	5.8	
 	 	0.07	
 	 	—	
 	 	—	
 	
Gain on remeasurement of equity interest in acquiree (b)	—	
 	 	—	
 	 	—	
 	 	—	
 	
Adjusted non-U.S. GAAP measure	$	41.9	
 	 	$	0.53	
 	 	$	30.8	
 	 	$	0.35	

 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	Nine Months Ended	
 	September 30, 2012	 	September 30, 2011	
 	Income From Continuing Operations
 (in millions)	 	Income From Continuing Operations
Attributable to MasTec per
Diluted Share	 	Income From Continuing Operations
 (in millions)	 	Income From Continuing Operations
Attributable to MasTec per
Diluted Share	
Reported U.S GAAP measure	$	79.0	
 	 	$	0.97	
 	 	$	90.5	
 	 	$	1.05	
 	
Legal settlement reserve (a)	5.8	
 	 	0.07	
 	 	—	
 	 	—	
 	
Gain on remeasurement of equity interest in acquiree (b)	—	
 	 	—	
 	 	(17.9	)	 	(0.21	)	
Adjusted non-U.S. GAAP measure	$	84.8	
 	 	$	1.04	
 	 	$	72.6	
 	 	$	0.84	

 	 	
(a)	Represents the after tax expense and corresponding diluted per share impact related to a legal settlement reserve we recorded in the third quarter of 2012. The tax effect was calculated using the effective tax rate from continuing operations for the respective period. See Note 14 - Commitments and Contingencies in the notes to the condensed unaudited consolidated financial statements for details.	
 	 	
(b)	Represents the after tax gain and corresponding diluted per share impact from the gain on remeasurement of our equity investment in EC Source, which we acquired in the second quarter of 2011. The tax effect was calculated using the effective tax rate from continuing operations for the respective period. See Note 3 - Acquisitions and Other Investments in the notes to the condensed unaudited consolidated financial statements for details.	

39

Table of Contents

Financial Condition, Liquidity and Capital Resources

Our primary sources of liquidity are cash flows from operations, availability under our credit facility and our cash balances. Our primary liquidity needs are for working capital, income taxes, capital expenditures, insurance collateral in the form of cash and letters of credit, earn-out obligations and debt service. We also evaluate opportunities for strategic acquisitions and/or investments from time to time that may require cash, and may consider opportunities to either repurchase outstanding debt or repurchase outstanding shares of our common stock in the future. See Part II, Item 2 of this Quarterly Report on Form 10-Q for details of our November 2011 share repurchase program, which was completed in the third quarter of 2012.
Capital Expenditures.  We estimate that we will spend approximately $75.0 million in 2012 on capital expenditures. In 2011, we spent approximately $72 million on capital expenditures, primarily to support project activity growth in oil and gas pipeline and facility as well as wireless activities, as well as in support of businesses acquired in 2011. Actual capital expenditures can increase or decrease from estimates depending upon business activity levels. We will continue to evaluate lease versus buy decisions to meet our equipment needs and, based on this evaluation, our capital expenditures may increase or decrease in the future. We expect to continue to sell older equipment as we upgrade to new equipment.
Earn-out Payments.  We have made certain acquisitions and have agreed to pay earn-out payments to certain of the sellers, generally based on the future performance of the acquired businesses. Certain of these earn-out payments may be made in either cash or, under certain circumstances, MasTec common stock, or a combination thereof, at our option. The estimated total value of future earn-out obligations recorded as liabilities as of September 30, 2012 was approximately $90.1 million. Of this amount, $19.2 million represents the liability for earn-out obligations that have already been earned and are currently payable. The remainder, $70.9 million, is management's estimate of potential future earn-out obligations, which are contingent upon future performance. Potential future earn-out obligations for acquisitions beginning with our acquisition of Precision Pipeline, LLC in 2009 are measured at their estimated fair value as of the date of acquisition, with subsequent changes in fair value recorded in earnings as a component of other income or expense. For the three months ended September 30, 2012, we made no cash payments related to earn-out obligations. For the three months ended September 30, 2011, we made cash payments of $7.7 million related to earn-out obligations. For the nine months ended September 30, 2012 and 2011, we made cash payments of $16.2 million and $44.7 million, respectively, related to earn-out obligations.
Income Taxes.  Our cash tax payments increased from $18.6 million for the nine month period September 30, 2011 to $37.2 million for the nine month period ended September 30, 2012. Our cash tax payments have increased in 2012 due to the fact that we utilized a significant portion of our available state net operating loss carryforwards in 2011 and also because we have a higher effective tax rate in 2012. In addition, in 2011, we benefited from higher tax depreciation expense, which reduced our cash tax payments.
Working Capital.  We need working capital to support seasonal variations in our business, primarily due to the impact of weather conditions on external construction and maintenance work and the spending patterns of our customers, both of which influence the timing of associated spending to support related customer demand. Our business is typically slower in the first quarter of each calendar year, and we generally experience seasonal working capital needs from April through October to support growth in accounts receivable, and to a lesser extent, inventory. Working capital needs tend to increase when we commence large amounts of work due to the fact that payroll and certain other costs, including inventory, are required to be paid before the receivables resulting from work performed are billed or collected. Timing of project close-outs can contribute to changes in unbilled revenue, which are a component of our accounts receivable balances. Accounts receivable balances have grown from approximately $655 million as of December 31, 2011 to almost $875 million as of September 30, 2012. Inventory balances were approximately $90 million as of both December 31, 2011 and September 30, 2012.
Our billing terms are generally net 30 days, and some of our contracts allow our customers to retain a portion (from 2% to 15%) of the contract amount until the job is completed. For certain customers, we maintain inventory to meet the material requirements of the contracts. Occasionally, certain of our customers pay us in advance for a portion of the materials we purchase for their projects, or allow us to pre-bill them for materials purchases up to specified amounts. Vendor terms are generally 30 days. Our agreements with subcontractors often contain a “pay-when-paid” provision, whereby our payments to subcontractors are made only after we are paid by our customers.
New Convertible Notes - Settlements. As of September 30, 2012, our common stock trading price was higher than the conversion prices of our outstanding 4.0% and 4.25% New Convertible Notes. Currently, we intend to settle the principal amounts of our New Convertible Notes upon any conversion thereof in cash. As of September 30, 2012, we had outstanding $202.3 million aggregate principal amount of our New Convertible Notes. Notwithstanding our present intention to settle conversions of our New Convertible Notes in cash, we cannot assure you that we will be able to do so due to restrictions under our Credit Facility. See the discussion of our Credit Facility below for additional details.
Summary of Financial Condition, Liquidity and Capital Resources
There have not been changes in general U.S. and global economic conditions since December 31, 2011 that have had a significant impact on our overall financial position, results of operations or cash flows for the three or nine month periods ended September 30, 2012; however, severe weather conditions that began in the third quarter of 2011 continued to negatively impact our productivity and profitability on certain pipeline projects in 2012. See “Comparison of Quarterly Results,” above, for related discussion. Given the generally good credit quality of our customer base, we do not expect collection issues that would materially impact our liquidity in the next twelve months. In addition, as a result of our current capital structure, including our Credit Facility, we do not anticipate that current overall capital market conditions will materially impact our liquidity. We anticipate that funds generated from operations, borrowings under our Credit Facility and our cash balances will be sufficient to meet our working capital requirements, required income tax payments, anticipated capital expenditures,

40

Table of Contents

insurance collateral requirements, earn-out obligations, letters of credit and debt service obligations for at least the next twelve months.

Sources and Uses of Cash
As of September 30, 2012, we had $276.1 million in working capital, defined as current assets less current liabilities, compared to $236.3 million as of December 31, 2011, an increase of $39.8 million. Total cash and cash equivalents of $11.2 million as of September 30, 2012 decreased by $9.1 million from total cash and cash equivalents of $20.3 million as of December 31, 2011. Cash and cash equivalents of $10.5 million from our continuing operations businesses increased slightly from $7.4 million as of December 31, 2011.
Sources and uses of cash are summarized below (in millions):

 
 	For the Nine Months Ended
September 30,	
 	2012	 	2011	
Net cash provided by (used in) operating activities	$	114.7	
 	 	$	(63.1	)	
Net cash provided by (used in) investing activities	$	35.4	
 	 	$	(133.6	)	
Net cash (used in) provided by financing activities	$	(159.3	)	 	$	35.5	

Operating Activities.  Cash flow from operations is primarily influenced by demand for our services, operating margins and the type of services we provide, but can also be influenced by working capital needs such as the timing of billings and collections of receivables and the settlement of payables and other obligations. A portion of working capital assets is typically converted to cash in the first quarter. Conversely, working capital needs generally increase from April through October due to the seasonality of our business. Operating cash flows for the nine month period ended September 30, 2012 shifted to cash provided by operations of $114.7 million, as compared with cash used in operations of $63.1 million for the 2011 period, a difference of $177.8 million. The increase in cash provided by operating activities was principally driven by net changes in assets and liabilities, primarily related to working capital, offset in part by the impact of changes in noncash adjustments, including the $29.0 million gain on remeasurement of our equity interests in EC Source, which was recorded in the second quarter of 2011. In addition, net income for the nine month period ended September 30, 2012 decreased by $26.3 million as compared with the same period in the prior year, primarily as a result of impairment losses of $12.7 million and provisions for legal settlements of $9.6 million, both of which were recorded in the third quarter of 2012. See Note 4 – Discontinued Operations and Note 14 – Commitments and Contingencies in the notes to the condensed unaudited consolidated financial statements for additional details.
Accounts receivable increased by $233.2 million during the nine month period ended September 30, 2012, representing a use of cash, as compared with an increase in accounts receivable of $227.0 million for the nine month period ended September 30, 2011. Accounts payable and accrued expenses increased by $176.3 million during the nine month period ended September 30, 2012, representing a source of cash, as compared with an increase of $93.5 million for the same period in the prior year, an improvement of $82.8 million. Billings in excess of costs and earnings decreased, representing a use of cash. This use in cash decreased from $61.9 million for the nine month period ended September 30, 2011 to $3.4 million for the nine month period ended September 30, 2012, an improvement of $58.5 million.
Days sales outstanding for our continuing operations businesses as of September 30, 2012 decreased to 75 from days sales outstanding of 82 as of December 31, 2011. Days sales outstanding for our continuing operations businesses as of September 30, 2011 was 78. Factors contributing to the improvement in days sales outstanding as of September 30, 2012 versus December 31, 2011 include timing of project close-outs and related billings, contractual billing terms and pace of collections. Changes in project and customer mix also contributed to the decrease in days sales outstanding. We do not currently anticipate collection issues related to our outstanding accounts receivable balances, and we continue to actively bill and collect outstanding amounts in a timely manner.
Investing Activities.  Net cash provided by investing activities increased by $169.0 million to $35.4 million for the nine month period ended September 30, 2012 from $133.6 million of cash used in investing activities for the nine month period ended September 30, 2011. The increase was primarily driven by $97.7 million of net proceeds from the sale of the DirectStar Business, as well as from a reduction of $67.9 million in cash payments for acquisitions, including earn-out obligations. We acquired certain businesses during the first half of 2011, for which we paid $40.7 million, net of cash acquired. In addition, we paid $16.2 million of earn-out obligations for the nine months ended September 30, 2012 as compared with $44.7 million for the same period in 2011.
Financing Activities.  Cash used in financing activities for the nine month period ended September 30, 2012 was $159.3 million, as compared with $35.5 million of cash provided by financing activities for the nine month period ended September 30, 2011. The increase in cash used in financing activities was driven principally by $75.0 million of cash payments for share repurchases during 2012, as well as net repayments of $50.0 million on our Credit Facility, as compared with net borrowings of $27.0 million for the nine month period ended September 30, 2011, a difference of $77.0 million.

Credit Facility
In August 2011, we entered into an amendment to our previous credit facility which amended and restated our previous credit facility in its entirety, expanded maximum available borrowing capacity from $260 million to $600 million and extended the maturity date from May 2013 until August 2016. The amended credit facility (the “Credit Facility”) provides for a $600 million senior secured revolving credit facility maturing on August 22, 2016. Up to $350 million of the Credit Facility is available for the issuance of letters of credit. Subject to certain terms in the Credit Facility, we have the option to increase our revolving commitments and/or establish term loans of up to $200

41

Table of Contents

million in total. Borrowings under the Credit Facility will be used to refinance existing indebtedness and for working capital, capital expenditures and other corporate purposes, including the repurchase or prepayment of indebtedness; however, the Credit Facility restricts the repurchase or prepayment of certain unsecured indebtedness, including our senior notes due 2017 and senior convertible notes due 2014, unless we have at least $50 million of remaining liquidity (as defined in the Credit Facility) after any such repurchase or prepayment.
The Credit Facility requires that we maintain a consolidated leverage ratio (as defined in the Credit Facility) at or below 3.50 to 1.00 and a consolidated interest coverage ratio (as defined in the Credit Facility) at or above 3.00 to 1.00. Subject to customary exceptions, the Credit Facility also limits our ability to engage in certain activities, including acquisitions, mergers and consolidations, debt incurrence, investments, capital expenditures, asset sales, debt prepayments, lien incurrence and the making of distributions on or repurchases of capital stock.
Amounts borrowed under the Credit Facility will bear interest, at our option, at a rate equal to either (a) the eurocurrency rate (as defined in the Credit Facility), plus a margin of 1.50% to 2.50%, as determined based on our consolidated leverage ratio (as defined in the Credit Facility) as of the most recent fiscal quarter, or (b) the base rate, (which is equal to the highest of (i) the federal funds rate (as defined in the Credit Facility) plus 0.5%, (ii) Bank of America’s prime rate and (iii) the eurocurrency rate plus 1.00%, plus a margin of 0.50% to 1.50%, as determined based on our consolidated leverage ratio as of the most recent fiscal quarter. Financial standby letters of credit and commercial letters of credit issued under the Credit Facility are subject to a letter of credit fee of 1.50% to 2.50% and performance standby letters of credit are subject to a letter of credit fee of 0.75% to 1.25%, in each case based on our consolidated leverage ratio as of the most recent fiscal quarter. We must also pay a commitment fee to the lenders on any unused availability under the Credit Facility, which is equal to 0.25% to 0.45%, based on the Company’s consolidated leverage ratio as of the then most recent fiscal quarter.
As of September 30, 2012, we had outstanding revolving loans of $10.0 million and approximately $99.4 million of letters of credit issued under our Credit Facility. The remaining $490.6 million of Credit Facility borrowing capacity was available for revolving loans or up to $250.6 million of new letters of credit. Outstanding letters of credit mature at various dates and most have automatic renewal provisions, subject to prior notice of cancellation. As of September 30, 2012, interest on outstanding revolving loans accrued at a rate of approximately 2.48% per annum, and interest on outstanding letters of credit accrued at either 1.125% or 2.25% per annum, based on the type of letter of credit issued, as described above. The unused facility fee as of September 30, 2012 was 0.40%.
The Credit Facility is guaranteed by most of our 100%-owned direct and indirect domestic subsidiaries, and it is collateralized by a first priority security interest in substantially all of our assets and the assets of our wholly owned subsidiaries and a pledge of the outstanding equity interests in certain of our operating subsidiaries. The Credit Facility also provides for customary events of default and carries cross-default provisions with our other significant debt instruments, including our indemnity agreement with our surety provider, as well as customary remedies upon an event of default (as defined in the Credit Facility), including the acceleration of repayment of outstanding amounts and other remedies with respect to the collateral securing the Credit Facility obligations.
Based upon current availability under our Credit Facility, our liquidity and our anticipated cash flow, we believe we will be in compliance with the Credit Facility’s terms and conditions for the next twelve months. We are dependent upon borrowings and letters of credit under the Credit Facility to fund our operations. Should we be unable to comply with the terms and conditions of the Credit Facility, we would be required to obtain modifications to the Credit Facility or obtain an alternative source of financing to continue to operate, neither of which may be available to us on commercially reasonable terms, or at all.
Cash Overdrafts
On a daily basis, available funds are swept from our depository accounts into a concentration account and are used to repay debt under our Credit Facility. Cash overdrafts principally represent the balance of outstanding checks that have not yet cleared through the banking system. Other cash balances maintained by certain operating subsidiaries, which are not swept into our concentration account, as well as deposits made subsequent to the daily cash sweep, are classified as cash. We generally do not fund our disbursement accounts for checks we have written until the checks are presented to the bank for payment. Cash overdrafts are classified within accounts payable. There are no compensating balance requirements associated with our depository accounts and there are no other restrictions on the transfer of cash associated with our depository accounts. As of September 30, 2012, cash overdrafts totaled $9.3 million.
Senior Convertible Notes
New Senior Convertible Notes. During the first quarter of 2011, we exchanged $105.3 million of our 4.0% senior convertible notes due 2014 (the Original 4.0% Notes”) and $97.0 million of our 4.25% senior convertible notes due 2014, (the “Original 4.25% Notes” and, collectively with the Original 4.0% Notes, the “Original Notes”), both of which were issued in 2009, for identical principal amounts of new 4.0% and 4.25% senior convertible notes (the “New 4.0% Notes” and “New 4.25% Notes,” respectively, and collectively, the “New Convertible Notes”) for an exchange fee of approximately 50 basis points, or approximately $1 million. The terms of the New Convertible Notes are substantially identical to those of the Original Notes, except that the New Convertible Notes have an optional physical (share), cash or combination settlement feature and contain certain conditional conversion features. During 2011, an immaterial principal amount of Original Notes was converted into shares of our common stock. As of September 30, 2012, $12.7 million principal amount of the Original Notes remains outstanding.

42

Table of Contents

The New Convertible Notes are convertible at any time during the three months immediately preceding their respective maturity dates; prior to such time, however, the New Convertible Notes are convertible only under certain conditions. Please see the detailed discussion in Note 9 – Debt in the notes to the consolidated financial statements in our Annual Report on Form 10-K, as amended, for the year ended December 31, 2011.
Because the New Convertible Notes have an optional cash settlement feature, and we intend to settle the principal amount of any conversions thereof in cash, the conversion shares underlying the principal amount of the New Convertible Notes totaling approximately 13.0 million shares are not included in our diluted share count. If, however, the average stock price per share exceeds the $15.76 conversion price for the New 4.0% Notes or the $15.48 conversion price for the New 4.25% Notes, then the resulting amount, in shares, of any premium will be included in our diluted share count (“premium shares”). Our average stock price exceeded the conversion prices of the New Convertible Notes for the three and nine months ended September 30, 2012 and 2011. This resulted in the inclusion of 1.6 million and 1.3 million weighted average premium shares in our diluted share count for the three and nine month periods ended September 30, 2012, respectively. For the three and nine month periods ended September 30, 2011, 2.7 million and 2.4 million premium shares, respectively, were included in our diluted share count. The total value of the premium over the principal amount for the New Convertible Notes for the three and nine month periods ended September 30, 2012 was approximately $29.3 million and $23.0 million, respectively. See Note 2 – Earnings Per Share and Note 10 – Debt in the notes to the condensed unaudited consolidated financial statements for additional details. The number of premium shares included in our diluted share count will vary with fluctuations in our share price. Higher actual share prices result in a greater number of premium shares. Because the number of shares required to be included in our diluted share count will vary with changes in our actual share price, we cannot predict the dilutive impact of any such premium shares in future periods.
Notwithstanding our present intention to settle conversions of our New Convertible Notes in cash, we cannot assure you that we will be able to do so due to restrictions under our Credit Facility, which restricts the repurchase or prepayment of certain unsecured indebtedness, including the Company’s senior notes due 2017 and senior convertible notes due 2014, unless the Company has at least $50 million of remaining liquidity (as defined in the Credit Facility) after any such repurchase or prepayment. If we were required to settle conversions of our New Convertible Notes in accordance with our stated intent to settle principal amounts due in cash, and we were unable to do so with existing cash balances or through our Credit Facility, we could be required to obtain additional funding or settle such conversions in shares of our common stock, which would be dilutive to our existing shareholders. We cannot be certain that such funding would be available on terms acceptable to us, or at all.
Original Senior Convertible Notes.  In November 2009, we issued $100 million of Original 4.25% Notes due December 15, 2014 in a private placement. Of this amount, $97.0 million was canceled and exchanged in the first quarter of 2011 for a like principal amount of New 4.25% Notes in connection with our debt exchange as discussed above. The Original 4.25% Notes bear interest at a rate of 4.25% per year, payable semi-annually in arrears, on June 15 and December 15 of each year. On or prior to December 12, 2014, holders may convert their Original 4.25% Notes into shares of our common stock at an initial conversion rate of 64.6162 shares of our common stock per $1,000 principal amount of Original 4.25% Notes, which represents an initial conversion price of approximately $15.48 per share, subject to customary anti-dilution adjustment terms for these types of notes.
In June 2009, we issued $115 million of Original 4.0% Notes due June 15, 2014 in a registered offering. Of this amount, $105.3 million was canceled and exchanged in the first quarter of 2011 for a like principal amount of New 4.0% Notes in connection with our debt exchange as discussed above. The Original 4.0% Notes bear interest at a rate of 4.0% per year, payable semi-annually in arrears, on June 15 and December 15 of each year. On or prior to June 13, 2014, holders may convert their Original 4.0% Notes into shares of our common stock at an initial conversion rate of 63.4417 shares of our common stock per $1,000 principal amount of Original 4.0% Notes, which represents an initial conversion price of approximately $15.76 per share, subject to customary anti-dilution adjustment terms for these types of notes.
The 4.25% and 4.0% senior convertible notes are guaranteed by substantially all of our 100%-owned direct and indirect domestic operating subsidiaries. There are no financial covenants on these notes, however, there are certain nonfinancial provisions and covenants associated with these notes.
Senior Notes
We have $150 million of outstanding 7.625% senior notes (the “Senior Notes”) due February 2017, with interest due semi-annually. The notes contain default (including cross-default) provisions and covenants restricting many of the same transactions as under our Credit Facility. The indenture that governs the Senior Notes allows us to incur additional indebtedness to the extent that our fixed charge coverage ratio, as therein defined, is at least 2:1. The fixed charge coverage ratio is calculated as consolidated EBITDA for the most recent four fiscal quarters for which internal financial statements are available, divided by fixed charges for such four quarter period, as such terms are defined in the indenture. If the fixed charge coverage ratio is less than 2:1, we are still permitted to incur the following additional indebtedness, among others: credit facilities under a defined threshold, renewals to existing debt permitted under the indenture, capital lease obligations up to 5% of our consolidated net assets, plus an additional $50 million of indebtedness at any time the Senior Notes remain outstanding. The Senior Notes are guaranteed by substantially all of our operating subsidiaries.
Acquisition Debt
In connection with certain acquisitions, we have entered into or assumed certain debt and/or capital lease obligations. As of September 30, 2012, $21.6 million of this acquisition-related debt remained outstanding. Except for one note with an immaterial principal balance as of September 30, 2012, there are no financial covenants associated with this acquisition-related debt.

43

Table of Contents

Debt Guarantees and Covenants
The Senior Notes, New Convertible Notes and Original Convertible Notes are fully and unconditionally guaranteed on an unsecured, unsubordinated, joint and several basis by our existing and future 100%-owned direct and indirect domestic subsidiaries that are guarantors of our Credit Facility or other outstanding indebtedness.  See supplemental financial information in Note 17 - Supplemental Guarantor Financial Information in the notes to the condensed unaudited consolidated financial statements.
We were in compliance with all provisions and covenants pertaining to our outstanding debt instruments as of September 30, 2012.

Auction Rate Securities
Our securities available for sale consist of auction-rate securities, which represent interests in pools of student loans guaranteed by the U.S. government under the Federal Family Education Loan Program and a structured finance security. As of September 30, 2012, we held $17.9 million in par value of auction rate securities, with an estimated fair value and carrying value of $14.1 million. Cumulative unrealized losses, net, totaled $3.3 million as of September 30, 2012, which are recorded in other comprehensive income, net of applicable income taxes. See Note 7 – Securities Available For Sale in the notes to the condensed unaudited consolidated financial statements.

Off-Balance Sheet Arrangements
As is common in our industry, we have entered into certain off-balance sheet arrangements in the ordinary course of business. Our significant off-balance sheet transactions include liabilities associated with non-cancelable operating leases, letter of credit obligations, surety and performance and payment bonds entered into in the normal course of business, self-insurance liabilities, liabilities associated with multi-employer pension plans and liabilities associated with certain indemnification and guarantee arrangements. We do not have any material off-balance sheet financing arrangements with variable interest entities.
Leases. In the ordinary course of business, we enter into non-cancelable operating leases for certain of our facility, vehicle and equipment needs, including related party leases. These leases allow us to conserve cash and provide flexibility in that we pay a monthly rental fee for use of the related facilities, vehicles and equipment rather than purchasing them. The terms of these agreements vary from lease to lease, including some with renewal options and escalation clauses. We may decide to cancel or terminate a lease before the end of its term, in which case we are typically liable for the remaining lease payments under the term of the lease. Rent expense related to operating leases, including short-term rentals, reflected within continuing operations was approximately $69.4 million and $168.2 million, respectively, for the three and nine months ended September 30, 2012.
Letters of Credit. In the ordinary course of business, we are required to post letters of credit for our insurance carriers, surety bond providers and in support of performance under certain contracts. Such letters of credit are generally issued by a bank or similar financial institution. The letter of credit commits the issuer to pay specified amounts to the holder of the letter of credit if the holder claims that we have failed to perform specified actions. If this were to occur, we would be required to reimburse the issuer of the letter of credit, which depending upon the circumstances, could result in a charge to earnings. As of September 30, 2012, we had $99.4 million of standby letters of credit issued under our Credit Facility, of which $51.2 million pertained to certain of our insurance carriers. We are not aware of any material claims relating to outstanding letters of credit as of September 30, 2012 and do not believe it is likely that any material claims will be made under any of our outstanding letters of credit in the foreseeable future. We may be required to post additional letters of credit or other collateral in favor of our insurance carriers, surety bond providers or customers in the future. Posting letters of credit reduces our borrowing availability under our Credit Facility.
Performance and Payment Bonds.In the ordinary course of business, we are required by certain customers to provide performance and payment bonds for some of our contractual commitments related to projects in process. These bonds provide a guarantee to the customer that we will perform under the terms of a contract and that we will pay subcontractors and vendors. If we fail to perform under a contract or to pay subcontractors and vendors, the customer may demand that the surety make payments or provide services under the bond. We must reimburse the surety for any expenses or outlays it incurs. If our business continues to grow, our bonding requirements may increase in the future. If we are unable to successfully renew or obtain sufficient bonding capacity in the future, it could limit our ability to bid on certain contracts or perform work for certain customers. As of September 30, 2012, the estimated cost to complete projects secured by our $987.1 million in performance and payment bonds was $334.8 million. We believe it is unlikely that we will have to fund significant claims under performance and payment bonds in the foreseeable future.
Self-Insurance.  We maintain insurance policies subject to per claim deductibles of $1 million for our workers’ compensation policy, $2 million for our general liability policy and $2 million for our automobile liability policy. We have excess umbrella coverage up to $100 million per claim and in the aggregate. Liabilities under these insurance programs are accrued based upon our estimate of the ultimate liability for claims reported and an estimate of claims incurred but not reported, with assistance from third-party actuaries. These insurance liabilities are difficult to assess and estimate due to unknown factors, including the severity of an injury, the determination of our liability in proportion to other parties and the number of incidents not reported. Accruals are based upon known facts and historical trends and we believe such accruals to be adequate. As of September 30, 2012, our liability for unpaid claims and associated expenses, including incurred but not reported losses related to our workers compensation, general liability and automobile liability insurance policies, was $47.4 million, of which $30.1 million was reflected within non-current other liabilities.
We also maintain an insurance policy with respect to employee group health claims, which is subject to annual per employee maximum losses of $0.4 million. Our liability for employee group claims as of September 30, 2012, which is based on statistical analysis of historical claims experience and specific knowledge of actual losses that have occurred, was $1.7 million.

44

Table of Contents

We are required to post letters of credit and provide cash collateral to certain of our insurance carriers and to provide surety bonds in certain states in which we are self-insured. As of September 30, 2012, these letters of credit amounted to $51.2 million. In addition, cash collateral deposited with insurance carriers, which is included in other long term assets in the consolidated balance sheet, amounted to $2.0 million as of September 30, 2012. Outstanding surety bonds related to workers’ compensation self-insurance programs amounted to $9.0 million as of September 30, 2012.
Employment Agreements. We have employment agreements with certain executives and other employees, which provide for compensation and certain other benefits and for severance payments under certain circumstances. Certain employment agreements also contain clauses that become effective upon a change of control of the Company. Upon the occurrence of any of the defined events in the various employment agreements, we will pay certain amounts to the relevant employees, which vary with the level of the employees’ respective responsibility.
Collective Bargaining Agreements and Multi-Employer Pension Plans. Certain of MasTec’s subsidiaries are party to various collective bargaining agreements with unions representing certain of their employees. The agreements require the subsidiaries party to the agreements to pay specified wages, provide certain benefits to their union employees and contribute certain amounts to multi-employer pension plans and employee benefit trusts. The multi-employer pension plan contribution rates are determined annually and assessed on a “pay-as-you-go” basis based on union employee payrolls. The required amount of future contributions cannot be determined for future periods because the number of union employees employed at any given time, and the plans in which they may participate, vary depending upon the location and number of ongoing projects and the need for union resources in connection with those projects. The collective bargaining agreements expire at various times and have typically been renegotiated and renewed on terms similar to the ones contained in the expiring agreements.
The Employee Retirement Income Security Act of 1974, as amended by the Multi-Employer Pension Plan Amendments Act of 1980 (“ERISA”), subjects employers to substantial liabilities in the event of the employer’s complete or partial withdrawal from, or upon termination of, such plans. Under current law regarding employers who are contributors to multi-employer defined benefit plans, a plan’s termination, an employer’s voluntary withdrawal from, or the mass withdrawal of all contributing employers from, an underfunded multi-employer defined benefit plan requires participating employers to make payments to the plan for their proportionate share of the multi-employer plan’s unfunded vested liabilities. Furthermore, the Pension Protection Act of 2006 added new funding rules generally applicable to plan years beginning after 2007 for multi-employer plans that are classified as “endangered,” “seriously endangered,” or “critical” status. If plans in which we participate are in critical status, benefit reductions may apply and/or we could be required to make additional contributions if the plans are determined to be underfunded.
Based upon the information available to us from plan administrators as of September 30, 2012, several of the multi-employer pension plans in which we participate are underfunded. The Pension Protection Act requires that underfunded pension plans improve their funding ratios within prescribed intervals based on the level of their underfunding. In addition, if a multi-employer defined benefit plan fails to satisfy certain minimum funding requirements, the Internal Revenue Service may impose a nondeductible excise tax of 5% on the amount of the accumulated funding deficiency for those employers contributing to the fund. We have been notified that certain plans to which our subsidiaries contribute are in “critical” status and require additional contributions in the form of a surcharge on future benefit contributions required for future work performed by union employees covered by these plans. As a result, we expect our required contributions to these plans to increase in the future. The amount of additional funds we may be obligated to contribute in the future cannot be estimated, as such amounts will be based on future levels of work that require the specific use of those union employees covered by these plans.
On November 15, 2011, we, along with other members of the Pipe Line Contractors Association (“PLCA”), voluntarily withdrew from the Central States Southeast and Southwest Areas Pension Fund (“Central States”), a defined benefit multi-employer pension plan. In connection with this withdrawal, we recorded a $6.4 million withdrawal liability based on an estimate provided by the plan administrator of such liability as of the date of withdrawal. We withdrew from the Central States Plan in order to mitigate our liability in connection with the plan, which is in critical status, however, the plan has asserted that the PLCA members did not effectively withdraw on November 15, 2011. Although, we believe that we legally and effectively withdrew from the plan on November 15, 2011, if Central States were to prevail in its assertion that we in fact withdrew after that date, then the amount of our withdrawal liability would increase. In addition, if this plan were to undergo a mass withdrawal, as defined by ERISA and the Pension Benefit Guaranty Corporation, within a two to three year time frame from the point of our withdrawal, we could have additional liability. We currently do not have plans to withdraw from any other multi-employer pension plan.
Withdrawal liabilities, requirements to pay increased contributions and/or excise taxes in connection with any of the multi-employer pension plans in which we participate could negatively impact our liquidity and results of operations.
Indemnities. We generally indemnify our customers for the services we provide under our contracts, as well as other specified liabilities, which may subject us to indemnity claims, liabilities and related litigation. As of September 30, 2012, we were not aware of any material asserted or unasserted claims in connection with these indemnity obligations.
Other Guarantees. In the ordinary course of business, from time to time, we guarantee the obligations of our subsidiaries, including obligations under certain contracts with customers, certain lease obligations and in some states, obligations in connection with obtaining contractors’ licenses. We also generally warrant the work we perform for a one to two year period following substantial completion of a project. We have not historically accrued any reserves for potential warranty claims as they have been immaterial.

45

Table of Contents

Impact of Inflation
The primary inflationary factors affecting our operations are labor and fuel costs, and to a lesser extent, material costs. The price of fuel is subject to unexpected fluctuations due to events outside of our control, including geopolitical events and fluctuations in global supply and demand. Significant fuel price increases could adversely impact our operating results in the future. We closely monitor inflationary factors and any impact they may have on our operating results or financial condition.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Interest Rate Risk
Interest on outstanding revolving loans under our Credit Facility accrues at variable rates based, at our option, on a eurocurrency rate, as defined in the Credit Facility, plus a margin of 2.25%, or a base rate, as defined in the Credit Facility, plus a margin of 1.25%. As of September 30, 2012, interest on outstanding revolving loans accrued at a rate of 2.48% per annum. Interest on letters of credit issued under our Credit Facility currently accrues at either 1.125% or 2.25% per annum, based on the type of letter of credit issued. A 100 basis point increase in the interest rate applicable to revolving loans under our Credit Facility would not have had a material impact on our results of operations for the three or nine month periods ended September 30, 2012.
As of September 30 2012, our fixed interest rate debt primarily included $150 million aggregate principal amount of 7.625% senior notes, $115 million aggregate principal amount of 4.0% senior convertible notes, $100 million aggregate principal amount of 4.25% senior convertible notes and $34.0 million of notes payable for equipment with a weighted average interest rate of approximately 3.8%, none of which debt subjects us to interest rate risk.
Foreign Currency Risk
The Company has foreign operations in Canada, as well as in parts of Latin America and the Caribbean. For the nine months ended September 30, 2012, we had foreign currency translation gains of $2.3 million, relating primarily to our Canadian operations, which were recorded as a component of other comprehensive income. If we continue to expand our operations outside of the United States, our exposure to fluctuations in foreign currency exchange rates could increase in the future.
Auction Rate Securities
Our securities available for sale consist of auction rate securities. Our auction rate securities represent interests in pools of student loans guaranteed by the U.S. government under the Federal Family Education Loan Program and a structured finance security. The structured finance security has an attached credit default swap under which the principal value would be partially or fully forfeited at net default rates on the underlying corporate debt obligations ranging from 8% to 9% as of September 30, 2012. The net default rate as of September 30, 2012 was estimated to be 6.23%. Both the structured finance security and the credit default swap are collateralized by investment grade credit-linked notes made up of floating rate international bank notes. For the three and nine months ended September 30, 2012, no other-than-temporary impairment losses were recognized in earnings on our structured finance security. As of September 30, 2012, we hold $17.9 million in par value of auction rate securities, with an estimated fair value and carrying value of $14.1 million. Cumulative unrealized losses related to our student loan auction rate securities total $3.3 million as of September 30, 2012, which are recorded in other comprehensive income, net of applicable income taxes.
See Note 7 - Securities Available for Sale in the notes to condensed unaudited consolidated financial statements.

ITEM 4. CONTROLS AND PROCEDURES
As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (“the Exchange Act”). Based upon that evaluation, we concluded that as of September 30, 2012, our disclosure controls and procedures were effective to ensure that information required to be disclosed in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, to allow for timely decisions regarding required disclosures.
Changes in Internal Control over Financial Reporting
There were no changes in our internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Exchange Act Rules 13a-15 or 15d-15 that occurred during the period covered by this report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

46

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS
Refer to Note 14 – Commitments and Contingencies in the notes to our condensed unaudited consolidated financial statements included in this Quarterly Report on Form 10-Q, which is incorporated by reference in this Item 1, for a discussion of any recent material developments related to our legal proceedings since the filing of our most recent Annual Report on Form 10-K, as amended, as updated by our subsequent Quarterly Reports on Form 10-Q.

ITEM 1A. RISK FACTORS
Except as set forth below, there have been no material changes to any of the risk factors disclosed in our recently filed Annual Report on Form 10-K, as amended.
We derive a significant portion of our revenue from a few customers, and the loss of one of these customers or a reduction in their demand for our services could impair our financial performance.
For the three months ended September 30, 2012, we derived approximately 17% and 16% of our revenue from continuing operations from AT&T and DIRECTV ® , respectively. For the nine months ended September 30, 2012, we derived approximately 17% of our revenue from continuing operations from both AT&T and DIRECTV ® . For the three months ended September 30, 2011, we derived approximately 23% and 22% of our revenue from continuing operations from AT&T and DIRECTV ® , respectively. For the nine months ended September 30, 2011, we derived approximately 25%, 19% and 11% of our revenue from continuing operations from AT&T, DIRECTV ® and El Paso Corporation, respectively. In addition, our ten largest customers accounted for approximately 67% and 73% of our revenue from continuing operations in the three months ended September 30, 2012 and 2011, respectively, and approximately 66% and 73% of our revenue from continuing operations in the nine months ended September 30, 2012 and 2011, respectively. Because our business is concentrated among relatively few major customers, and certain of our services are provided on a non-recurring, project by project basis, we could experience a reduction in our results of operations, cash flows and liquidity if the amount of business we obtain from these customers is reduced, or if we complete the required work on our projects and cannot replace them with similar projects. Approximately 60% of our revenues were derived from non-recurring project specific work for the quarter ended September 30, 2012, which may further increase this risk if we are not able to replace completed project work with new work. In addition, many of the contracts with our largest customers may be canceled on short or no advance notice. Any of these factors could negatively impact our results of operations, cash flows and liquidity.
In May 2012, Red Ventures exercised its option to purchase the DirectStar Business, and we consummated our sale of the DirectStar Business to Red Ventures in June 2012. DirectStar provides marketing and sales services on behalf of DIRECTV ®  and, as a result of our sale of the DirectStar Business, our future revenues and profits from DIRECTV ®  will be reduced. See Note 4 – Discontinued Operations in the notes to the condensed unaudited consolidated financial statements for additional details.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
The following table provides information about repurchases of our common stock during the three month period ended September 30, 2012:

Period	
 	
Total Number
of Shares Purchased (1)	 	
Average Price Paid per Share	 	Total Number of Shares Purchased as Part of Publicly Announced Program (3)	 	Approximate Dollar Value of Shares that
May Yet be Purchased under the Program	
July 1 through July 31	 	1,967,773	
 	 	$	15.84	
 	 	1,967,773	
 	 	$	—	
 	
August 1 through August 31	 	868	
 	(2)	$	18.46	
 	 	—	
 	 	$	—	
 	
September 1 through September 30	 	—	
 	 	$	—	
 	 	—	
 	 	$	—	
 	
Total	 	1,968,641	
 	 	 	 	1,967,773	

(1)	Except to the extent described in footnote 2 below with respect to common stock withheld for income tax purposes under compensation and benefit programs, all shares were acquired in open-market transactions.	
 	 	
(2)	Reflects shares of common stock withheld for income tax purposes in connection with shares issued to certain employees and directors under compensation and benefit programs.	
 	 	
(3)	Purchased pursuant to the Company’s publicly announced share repurchase program, which was initially a $75 million program that was announced on November 7, 2011. The Company later increased the maximum aggregate dollar amount of shares that may be repurchased under this program from $75 million to $150 million and announced such increase on December 16, 2011. This share repurchase program was completed during July 2012 with approximately $31 million of share repurchases.	

47

ITEM 6. EXHIBITS

Exhibit
No.	 	Description	
12.1	 	Statement Regarding Computation of Ratio of Earnings to Fixed Charges and Preference Dividends	
23.1	 	Consent of Independent Valuation Firm.	
31.1	 	Certification of Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	
31.2	 	Certification of Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	
32.1	 	Certification of Chief Executive Officer, pursuant to 18 U.S.C. Section 1350, as Adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	
32.2	 	Certification of Chief Financial Officer, pursuant to 18 U.S.C. Section 1350, as Adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	
101.INS**	 	XBRL Instance Document	
101.SCH**	 	XBRL Taxonomy Extension Schema	
101.CAL**	 	XBRL Taxonomy Extension Calculation Linkbase	
101.LAB**	 	XBRL Taxonomy Extension Label Linkbase	
101.PRE**	 	XBRL Taxonomy Extension Presentation Linkbase	
101.DEF**	 	XBRL Taxonomy Extension Definition Linkbase.	
**	Pursuant to Rule 406T of Regulation S-T, these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933 or Section 18 of the Securities Exchange Act of 1934 and otherwise are not subject to liability.	

48

Table of Contents

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 	 	 	
 	 	MASTEC, INC.	
Date:	November 1, 2012	 	
 	 	 	
 	 	/s/ Jose R. Mas 	
 	 	Jose R. Mas
Chief Executive Officer
(Principal Executive Officer)	

 	 	/s/ C. Robert Campbell	
 	 	C. Robert Campbell
Chief Financial Officer
(Principal Financial and Accounting Officer)	

49

Exhibit 12.1

Statement Regarding Computation of Ratio of Earnings to Fixed Charges and Preference Dividends

Ratio of Earnings to Fixed Charges (dollar amounts in thousands):

 	 	 	 	
 	Nine Months Ended
September 30, 2012	
Earnings:	 	
Income from continuing operations before provision for income taxes	$	130,186	
 	
Add:	 	
Fixed charges	84,262	
 	
Less: Undistributed earnings (losses) from equity method investees	—	
 	
Total earnings	$	214,448	
 	
Fixed charges:	 	
Interest expense	$	28,194	
 	
Estimate of interest expense within rental expense	56,068	
 	
Total fixed charges	$	84,262	
 	
Ratio of earnings to fixed charges	2.5	

Exhibit 23.1

Consent of Independent Valuation Firm

We hereby consent to the references to Houlihan Capital Advisors, LLC (“Houlihan”) and to our valuation report dated September 30, 2012 (our “Report”) relating to the estimation of fair value of certain auction rate securities held by MasTec, Inc. (the “Company”) as of September 30, 2012, including the use of information contained within our Report in the Company’s Form 10-Q for the quarter ended September 30, 2012 and to the incorporation by reference of such information from the Company’s Form 10-Q for the fiscal quarter ended September 30, 2012 in the following Registration Statements: Form S-8 Nos. 333-139996, 333-112010, 333-105781, 333-105516, 333-38932, 333-77823, 333-47003, 333-38940, 333-30647 and 333-174922; Form S-3 Nos. 333-180608, 333-158502, 333-142083, 333-133252, 333-46067; and Form S-4 No. 333-170834.

We also consent to the reference to our firm under the caption “Experts” in the above-referenced Registration Statements.

 	 	
/s/ Houlihan Capital Advisors, LLC	 	
 	 	
Houlihan Capital Advisors, LLC	 	
 	 	
October 29, 2012	 	

Exhibit 31.1

CERTIFICATIONS REQUIRED BY SECTION 302(A)
OF SARBANES-OXLEY ACT OF 2002

I, Jose R. Mas, certify that:

I have reviewed this quarterly report on Form 10-Q of MasTec, Inc.;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;

Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:
 	 	
a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;	

b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;	

c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and	

d)	Disclosed in this quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.	

The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
 	 	
a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and	

b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.	

 	
 	 	 	
Date:	November 1, 2012	 	
 	 	 	
 	 	/s/ Jose R. Mas	
 	 	Jose R. Mas         
Chief Executive Officer
(Principal Executive Officer)	

Exhibit 31.2

CERTIFICATIONS REQUIRED BY SECTION 302(A)
OF SARBANES-OXLEY ACT OF 2002

I, C. Robert Campbell, certify that:

I have reviewed this quarterly report on Form 10-Q of MasTec, Inc.;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;

Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:
 	 	
a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;	

b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;	

c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and	

d)	Disclosed in this quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.	

The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
 	 	
a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and	

b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.	

 	
 	 	 	
Date:	November 1, 2012	 	
 	 	 	
 	 	/s/ C. Robert Campbell	
 	 	C. Robert Campbell
Chief Financial Officer
(Principal Financial and Accounting Officer)	

Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of MasTec, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jose R. Mas, Chief Executive Officer of MasTec, Inc., certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:
 	 	
(1)	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and	

(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.	

 	
 	 	 	
Date:	November 1, 2012	 	
 	 	 	
 	 	/s/ Jose R. Mas	
 	 	Jose R. Mas
Chief Executive Officer
(Principal Executive Officer)	

The certification set forth above is being furnished as an exhibit solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and is not being filed as part of the Quarterly Report on Form 10-Q for the period ended September 30, 2012, or as a separate disclosure document of the Company or the certifying officers.

Exhibit 32.2

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of MasTec, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, C. Robert Campbell, Chief Financial Officer of MasTec, Inc., certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:
 	 	
(1)	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and	

(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.	

 	
 	 	 	
Date:	November 1, 2012	 	
 	 	 	
 	 	/s/ C. Robert Campbell	
 	 	C. Robert Campbell
Chief Financial Officer
(Principal Financial and Accounting Officer)	

The certification set forth above is being furnished as an exhibit solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and is not being filed as part of the Quarterly Report on Form 10-Q for the period ended September 30, 2012, or as a separate disclosure document of the Company or the certifying officers.