MasTec (MTZ) 8-K/A Completion of Acquisition or Disposition of Assets

Exhibit 99.3

UNAUDITED PRO FORMA COMBINED CONDENSED FINANCIAL DATA

Effective November 1, 2009, MasTec purchased all of the issued and outstanding membership interests of Precision Pipeline, LLC and Precision Transport Company, LLC (together, “Precision”) for an aggregate purchase price, subject to adjustment, composed of (i) approximately $132 million in cash, (ii) the assumption of approximately $34 million of Precision’s debt and (iii) a five-year earn-out equal to 40% of Precision’s EBITDA (as defined in the Purchase Agreement) for the last two months of 2009 and 30% of Precision’s annualized EBITDA in excess of $35 million for the remainder of the earn-out period, payable, at MasTec’s option, in cash or, under certain circumstances, shares of MasTec’s common stock or a combination thereof. In order to provide a portion of the funding of the transaction, MasTec issued $100 million 4.25% senior convertible notes due in 2014.

The financial statements of “Precision” referred to in this unaudited pro forma combined condensed financial data are the consolidated financial statements of PPL Management, Inc, of which Precision Pipeline LLC was a 98% owned subsidiary, and their related entities, Precision Transport Company, LLC, and Precision Land Company, LLC. MasTec did not acquire PPL Management, Inc. or Precision Land Company, LLC, or their assets or operations. PPL Management’s operations are substantially limited to employing certain management and administrative personnel, all of whom were transferred to Precision as part of the Precision acquisition.

The unaudited pro forma combined condensed financial statements of MasTec and Precision as of and for the nine months ended September 30, 2009 have been prepared from our unaudited condensed consolidated financial statements as of and for the nine months ended September 30, 2009, and the unaudited financial statements of Precision as of and for the nine months ended September 30, 2009. The unaudited pro forma combined condensed statement of operations for the year ended December 31, 2008 has been prepared from our audited consolidated financial statements for the year ended December 31, 2008 and the audited financial statements of Precision for the year ended December 31, 2008.

The unaudited pro forma combined condensed financial statements have been prepared on a basis to reflect the acquisition of Precision as if these transactions occurred as of January 1, 2008 and 2009 for the statements of operations and as if the acquisition of Precision had been completed as of September 30, 2009 for the balance sheet.

The pro forma adjustments are preliminary due to the recent closing of the acquisition and have been made solely for purposes of developing the pro forma financial information necessary to comply with the requirements of the Commission. The impact of the acquisition on the actual results reported by the combined company in periods following the acquisition may differ significantly from that reflected in these pro forma financial statements for a number of reasons. As a result, the pro forma information is not necessarily indicative of what the combined company’s financial condition or results of operations would have been had the acquisition been completed on the applicable dates of this pro forma financial information. In addition, the pro forma financial information does not purport to project the future financial condition and results of operations of the combined company.

You should read these unaudited pro forma combined condensed financial statements in conjunction with (i) our audited consolidated financial statements as of and for the year ended December 31, 2008 and our interim unaudited condensed consolidated financial statements as of and for the nine months ended September 30, 2009, and (ii) the audited financial statements of Precision for the three years ended December 31, 2008 incorporated by reference from our Current Report on Form 8-K filed with the Commission on November 4, 2009 and the unaudited financial statements of Precision as of and for the nine months ended September 30, 2009, included in this Current Report on Form 8-K/A.

The pro forma adjustments are based on preliminary estimates, available information and certain assumptions, and may be revised as additional information becomes available. The unaudited pro forma combined condensed financial statements do not reflect any adjustments for non-recurring items or anticipated synergies resulting from the acquisition. The pro forma

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adjustments are more fully described in the notes to the unaudited proforma combined condensed financial statements. The pro forma financial information is based on assumptions and adjustments, including assumptions related to the allocation of the purchase price to the underlying tangible and intangible assets and liabilities acquired from Precision based on their respective fair market values. The final purchase price allocation will differ from that reflected in the pro forma financial statements after valuation procedures and amounts recorded in connection with the purchase price allocation are finalized. The impact of such changes could be material. The purchase price allocation included in the pro forma financial information is based on information that was available to the management of MasTec and Precision at the time this pro forma financial information was prepared.

Accordingly, the pro forma adjustments have been prepared based on assumptions that we believe are reasonable, but that are subject to change once additional information becomes available and the preliminary purchase price allocation is finalized.

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MASTEC, INC.

UNAUDITED PRO FORMA COMBINED CONDENSED BALANCE SHEET

SEPTEMBER 30, 2009

(in thousands)

	Historical MasTec			Historical Precision		Pro Forma Adjustments				Pro Forma Combined
Cash and cash equivalents	$	95,316		$	61,175	$	100,000		(a)	$	112,265
							(3,700	)	(h)
							(131,928	)	(b)
							(1,561	)	(c)
							(6,587	)	(d)
							(450	)	(e)
Accounts receivable, costs and earnings in excess of billings and retainage, net of allowance		274,574			62,181		(127	)	(e)		336,628
Inventories		31,774			—						31,774
Deferred income taxes, net		875			—						875
Prepaid expenses and other current assets		22,271			7,515		(116	)	(e)		29,670
Total current assets		424,810			130,871		(44,469	)			511,212
Property and equipment, net		146,783			63,337		(5,431	)	(f)		202,745
							(1,944	)	(e)
Goodwill and other intangibles, net		437,653			—		111,636		(g)		549,289
Deferred income taxes, net		17,430			—						17,430
Securities available for sale		23,748			—						23,748
Other assets		28,689			1,501		10,131		(e)		44,021
							3,700		(h)
Total Assets	$	1,079,113		$	195,709	$	73,623			$	1,348,445
Current liabilities:
Current maturities of long-term debt	$	15,043		$	16,939	$	(1,561	)	(c)	$	30,421
Accounts payable and other accrued expenses		182,809			96,482		(541	)	(e)		278,750
Other current liabilities		56,882			—		19,550		(i)		76,432
Total current liabilities		254,734			113,421		17,448				385,603
Other liabilities		25,862			—		18,050		(i)		43,912
Long-term debt		294,653			21,621		100,000		(a)		415,066
							(1,208	)	(e)
Total liabilities		575,249			135,042		134,290				844,581
Controlling interest:
Preferred stock		—			—						—
Common stock		7,578			—						7,578
Capital surplus/Members’ equity		627,713			58,817		(68,061	)	(j)		627,713
							9,244		(e)
Accumulated deficit		(121,224	)		—						(121,224	)
Accumulated other comprehensive loss		(10,203	)		—						(10,203	)
Total controlling interest		503,864			58,817		(58,817	)			503,864
Non-controlling interest		—			1,850		(1,850	)	(j)		—
										��
Total shareholders’ equity		503,864			60,667		(60,667	)			503,864
Total liabilities and shareholders’ equity	$	1,079,113		$	195,709	$	73,623			$	1,348,445

See accompanying notes

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MASTEC, INC.

UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS

NINE MONTHS ENDED SEPTEMBER 30, 2009

(in thousands)

	Historical MasTec			Historical Precision			Pro Forma Adjustments				Pro Forma Combined
Revenue	$	1,127,221		$	163,478		$	(2,513	)	(e)	$	1,288,186
Cost of revenue, excluding depreciation		954,214			119,282							1,073,496
Depreciation and amortization		32,147			8,388			7,595		(k)		48,130
General and administrative expenses		71,619			3,735			(2,573	)	(e)		72,901
								120		(l)
Interest, net		17,312			1,273			3,188		(m)		22,331
								3		(e)
								555		(n)
Other (income) expense, net		(1,636	)		(13	)						(1,649	)
Income from continuing operations before non-controlling interest and income taxes		53,565			30,813			(11,401	)			72,977
Income tax (provision) benefit		(1,001	)		(71	)		(3,983	)	(o)		(5,055	)
Non-controlling interest		—			(29	)		29		(q)		–
Income (loss) from continuing operations	$	52,564		$	30,713		$	(15,355	)		$	67,922
Earnings per share from continuing operations:
Basic earnings per share	$	0.69									$	0.90
Fully diluted earnings per share	$	0.68									$	0.84		(p)
Shares outstanding – basic		75,645										75,645
Shares outstanding – diluted		79,784										86,244		(p)

See accompanying notes

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MASTEC, INC.

UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS

YEAR ENDED DECEMBER 31, 2008

(in thousands)

	Historical MasTec			Historical Precision			Pro Forma Adjustments				Pro Forma Combined
Revenue	$	1,378,663		$	506,959		$	(2,892	)	(e)	$	1,882,730
Cost of revenue, excluding depreciation		1,180,310			407,323			(45	)	(e)		1,587,588
Depreciation and amortization		28,465			8,674			9,273		(k)		46,412
General and administrative expenses		88,585			4,333			(2,696	)	(e)		90,382
								160		(l)
Interest, net		14,758			838			4,250		(m)		20,497
								(89	)	(e)
								740		(n)
Other (income) expense, net		(927	)		34			(22	)	(e)		(915	)
Income from continuing operations before non-controlling interest and income taxes		67,472			85,757			(14,463	)			138,766
Income tax (provision) benefit		(870	)		(38	)		18		(e)		(890	)
		66,602			85,719			(14,445	)			137,876
Non-controlling interest		—			(2,408	)		2,408		(q)		—
Income (loss) from continuing operations	$	66,602		$	83,311		$	(12,037	)		$	137,876
Earnings per share from continuing operations:
Basic earnings per share	$	0.98									$	2.03
Fully diluted earnings per share	$	0.97									$	1.89		(p)
Shares outstanding – basic		67,983										67,983
Shares outstanding – diluted		68,916										75,376		(p)

See accompanying notes

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NOTES TO THE UNAUDITED PRO FORMA COMBINED CONDENSED FINANCIAL STATEMENTS

The following pro forma adjustments are included in the unaudited pro forma combined condensed balance sheet:

a) Reflects the cash proceeds and long term debt associated with the issuance of $100 million in aggregate principal of the 4.25% senior convertible notes due in 2014.

b) Cash paid to the Sellers as purchase price consideration.

c) Reflects the portion of Precision’s debt paid off in connection with the acquisition.

d) Reflects cash distributed to the Sellers resulting from working capital in excess of the $9 million minimum working capital requirement at September 30, 2009 as set forth in the purchase agreement. As a result of actual cash and working capital balances, approximately $42 million was distributed to the Sellers at closing in November 2009.

e) Reflects the elimination of PPL Management and Precision Land, included in Precision’s consolidated financial statements, as these amounts relate to entities not included in the acquisition.

f) Adjustment to record the estimated fair value of Precision’s property and equipment at the date of acquisition.

g) To record preliminary estimate of goodwill and identifiable intangible assets from the acquisition of Precision as follows:

Customer contracts	$	14,500
Covenants not-to-compete		1,800
Goodwill		95,336
	$	111,636

h) To record deferred financing costs associated with the issuance of $100 million in aggregate principal of the 4.25% senior convertible notes due in 2014.

i) To record the estimated fair value of future earn-out payments to be made to the Sellers.

j) Elimination of Precision’s pre-acquisition equity balances.

The following pro forma adjustments are included in the unaudited pro forma combined condensed statements of operations:

k) Reflects preliminary estimated amortization of identifiable intangible assets. Customer contracts are amortized on an accelerated basis to match the utilization of related benefits, and the covenants not-to-compete are amortized on a straight-line basis over the term of the agreement.

l) Incremental rent expense to be paid to Precision Land previously included in Precision’s consolidated financial statements, but not acquired by MasTec.

m) Incremental interest expense on $100 million in aggregate principal of the 4.25% senior convertible notes at a rate of 4.25% per annum.

n) Amortization of deferred financing costs.

o) Reflects incremental income tax expense as MasTec’s valuation allowance is fully utilized by the additional pro forma net income resulting from the Precision acquisition.

p) Diluted earnings per share is calculated on the “if-converted” method and reflects the potential dilution that could occur if restricted stock awards, stock options, convertible notes or other securities to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then share in the earnings of MasTec. Solely for the purpose of calculating diluted EPS, interest expense of $4,306 and $4,410 was added back to net income for the year ended December 31, 2008 and the nine months ended September 30, 2009, respectively.

q) Reflects the elimination of the non-controlling interest in Precision as MasTec purchased 100% of the companies acquired.

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