EQT (EQT) 8-K Report of Independent Auditors

Exhibit 99.3

Unaudited Pro Forma Condensed Combined Financial Information

The following unaudited proforma condensed combined financial statements (the “proforma financial statements”) are derived from the historical audited and unaudited financial statements of EQT Corporation (“EQT”) and its subsidiaries (together, the “Company”) and Alta Resources Development, LLC, a Delaware limited liability company (“Alta Resources”), and its subsidiaries. The historical financial statements of Alta Resources include the accounts of ARD Operating, LLC, a Delaware limited liability company (“ARD”), Alta Marcellus Development, LLC, a Delaware limited liability company (“Alta Marcellus”), and other subsidiaries, each of which includes the equity interests to be acquired by the Company in the acquisition (the “Acquisition”) of Alta Marcellus and ARD pursuant to that certain Membership Interest Purchase Agreement, dated May 5, 2021 (the “Purchase Agreement”), by and among EQT, EQT Acquisition HoldCo LLC (a wholly owned indirect subsidiary of the EQT), Alta Resources, Alta Marcellus and ARD.

The proforma financial statements have been prepared to reflect the effects of the Acquisition as well as the effects of EQT’s issuance of $1.0billion of senior notes (the “notes”) on May17, 2021 (the “Notes Offering”), including the application of the net proceeds therefrom.

The proforma financial statements are provided for informational purposes only and do not purport to represent what the actual consolidated results of operations or the consolidated financial position of the Company would have been had the Acquisition occurred on the dates assumed, nor are they necessarily indicative of future consolidated results of operations or consolidated financial position. The proforma financial statements should be read in conjunction with:

◾	the accompanying notes to the proforma financial statements;
◾	the audited consolidated financial statements and accompanying notes of EQT contained in EQT’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020;
◾	the audited consolidated financial statements and accompanying notes of Alta Resources for the year ended June30, 2020 included as Exhibit 99.1 in the Current Report on Form 8-K filed by EQT on July 22, 2021;
◾	the unaudited condensed consolidated financial statements and accompanying notes of EQT contained in EQT’s Quarterly Report on Form 10-Q for the quarterly period ended March31, 2021; and
◾	the unaudited condensed consolidated financial statements and accompanying notes of Alta Resources as of and for the ninemonths ended March31, 2021 included as Exhibit 99.2 in the Current Report on Form 8-K filed by EQT on July 22, 2021.

EQT Corporation and Subsidiaries
Unaudited Pro Forma Condensed Combined Balance Sheet
March 31, 2021

	EQT Historical		Alta Resources Historical		Pro Forma Adjustments				Pro Forma Combined
	(Thousands)
ASSETS
Current assets:
Cash and cash equivalents	$	40,670	$	25,122	$	(1,000,000	)	(a)	$	37,942
						(12,200	)	(b)
						984,350		(l)
Accounts receivable, net		682,496		91,291		(2,595	)	(c)		771,192
Derivative instruments, at fair value		431,949		28,435		(8,907	)	(c)		458,707
						7,230		(d)
Prepaid expenses and other		158,590		2,001		(227	)	(a)		160,364
Total current assets		1,313,705		146,849		(32,349	)			1,428,205
Property, plant and equipment		22,168,856		2,289,189		583,383		(a)		25,041,428
Less: Accumulated depreciation and depletion		6,270,840		1,434,587		(1,434,587	)	(a)		6,270,840
Net property, plant and equipment		15,898,016		854,602		2,017,970		(a)		18,770,588
Contract asset		390,005		—		—				390,005
Other assets		437,678		9,740		(2,511	)	(a)		447,223
						(7,230	)	(d)
						9,546		(e)
Total assets	$	18,039,404	$	1,011,191	$	1,985,426			$	21,036,021
LIABILITIES AND EQUITY
Current liabilities:
Current portion of debt	$	29,291	$	—	$	—			$	29,291
Accounts payable		812,273		117,431		(2,595	)	(c)		927,109
Derivative instruments, at fair value		651,058		27,054		(12,200	)	(b)		665,242
						(9,614	)	(c)
						8,944		(d)
Other current liabilities		257,405		929		(929	)	(b)		281,897
						1,392		(e)
						23,100		(f)
Total current liabilities		1,750,027		145,414		8,098				1,903,539
Credit facility borrowings		300,000		433,217		(433,217	)	(b)		300,000
Senior notes		4,378,270		87,718		(87,718	)	(b)		5,362,620
						984,350		(l)
Note payable to EQM Midstream Partners, LP		98,487		—		—				98,487
Deferred income taxes		1,358,489		—		(8,313	)	(k)		1,350,176
Other liabilities and credits		923,765		34,809		30,916		(a)		988,700
						(8,944	)	(d)
						8,154		(e)
Total liabilities		8,809,038		701,158		493,326				10,003,522
Equity:
Total common shareholders’ equity		9,219,640		310,033		1,816,213		(a)		11,021,773
						(324,113	)	(i)
Noncontrolling interests in consolidated subsidiaries		10,726		—		—				10,726
Total equity		9,230,366		310,033		1,492,100				11,032,499
Total liabilities and equity	$	18,039,404	$	1,011,191	$	1,985,426			$	21,036,021

See accompanying notes to the unaudited proforma condensed combined financial information.

EQT Corporation and Subsidiaries
Unaudited Pro Forma Condensed Combined Statement of Operations
Three Months Ended March 31, 2021

	EQT Historical			Alta Resources Historical			Pro Forma Adjustments				Pro Forma Combined
	(Thousands, except per share amounts)
Operating revenues:
Sales of natural gas, natural gas liquids and oil	$	1,130,951		$	213,796		$	—			$	1,344,747
(Loss) gain on derivatives not designated as hedges		(188,813	)		13,662			—				(175,151	)
Net marketing services and other		7,785			6,614			(3,796	)	(d)		10,603
Total operating revenues		949,923			234,072			(3,796	)			1,180,199
Operating expenses:
Transportation and processing		445,784			35,207			—		(d)		480,991
Production		47,230			17,532			(3,796	)	(d)		60,966
Exploration		949			—			282		(g)		1,231
Selling, general and administrative		45,006			1,680			—				46,686
Depreciation and depletion		377,116			42,005			12,515		(j)		431,636
(Gain) loss on sale/exchange of long-lived assets		(1,207	)		—			—				(1,207	)
Impairment and expiration of leases		16,757			—			—				16,757
Other operating expenses		9,443			—			—				9,443
Total operating expenses		941,078			96,424			9,001				1,046,503
Operating income		8,845			137,648			(12,797	)			133,696
(Income) loss from investments		(11,848	)		—			—				(11,848	)
Dividend and other income		(3,304	)		(1,296	)		1,694		(b)		(2,906	)
Loss on debt extinguishment		4,424			—			—				4,424
Interest expense		75,099			6,898			(6,873	)	(b)		84,148
								9,024		(l)
Loss before income taxes		(55,526	)		132,046			(16,642	)			59,878
Income tax (benefit) expense		(14,494	)		—			40,841		(k)		26,347
Net income (loss)		(41,032	)		132,046			(57,483	)			33,531
Less: Net loss attributable to noncontrolling interest		(514	)		—			—				(514	)
Net (loss) income attributable to EQT Corporation	$	(40,518	)	$	132,046		$	(57,483	)		$	34,045
Loss per share of common stock attributable to EQT Corporation:
Basic:
Weighted average common stock outstanding		278,852										278,852
Net loss	$	(0.15	)								$	0.12
Diluted:
Weighted average common stock outstanding		278,852										278,852
Net loss	$	(0.15	)								$	0.12

See accompanying notes to the unaudited proforma condensed combined financial information.

EQT Corporation and Subsidiaries
Unaudited Pro Forma Condensed Combined Statement of Operations
Year Ended December 31, 2020

	EQT Historical			Alta Resources Historical			Pro Forma Adjustments				Pro Forma Combined
	(Thousands, except per share amounts)
Operating revenues:
Sales of natural gas, natural gas liquids and oil	$	2,650,299		$	442,463		$	—			$	3,092,762
(Loss) gain on derivatives not designated as hedges		400,214			101,696			—				501,910
Net marketing services and other		8,330			18,932			(9,525	)	(d)		17,737
Total operating revenues		3,058,843			563,091			(9,525	)			3,612,409
Operating expenses:
Transportation and processing		1,710,734			127,391			—		(d)		1,838,125
Production		155,403			57,226			(9,525	)	(d)		203,104
Exploration		5,484			—			1,734		(g)		7,218
Selling, general and administrative		174,769			7,333			—				182,102
Depreciation and depletion		1,393,465			189,960			38,052		(j)		1,621,477
Amortization of intangible assets		26,006			—			—				26,006
(Gain) loss on sale/exchange of long-lived assets		100,729			—			—				100,729
Impairment of other assets		34,694			—			—				34,694
Impairment and expiration of leases		306,688			770,704			(770,704	)	(h)		306,688
Other operating expenses		28,537			—			23,100		(f)		51,637
Total operating expenses		3,936,509			1,152,614			(717,343	)			4,371,780
Operating income		(877,666	)		(589,523	)		707,818				(759,371	)
Gain on Equitrans Share Exchange		(187,223	)		—			—				(187,223	)
(Income) loss from investments		314,468			—			—				314,468
Dividend and other (income) expense		(35,512	)		12,759			(11,876	)	(b)		(34,629	)
Loss on debt extinguishment		25,435			—			—				25,435
Interest expense		271,200			30,722			(30,442	)	(b)		307,578
								36,098		(l)
Loss before income taxes		(1,266,034	)		(633,004	)		714,038				(1,185,000	)
Income tax (benefit) expense		(298,858	)		—			17,007		(k)		(281,851	)
Net loss		(967,176	)		(633,004	)		697,031				(903,149	)
Less: Net loss attributable to noncontrolling interest		(10	)		—			—				(10	)
Net loss attributable to EQT Corporation	$	(967,166	)	$	(633,004	)	$	697,031			$	(903,139	)
Loss per share of common stock attributable to EQT Corporation:
Basic:
Weighted average common stock outstanding		260,613										260,613
Net loss	$	(3.71	)								$	(3.47	)
Diluted:
Weighted average common stock outstanding		260,613										260,613
Net loss	$	(3.71	)								$	(3.47	)

See accompanying notes to the unaudited proforma condensed combined financial information.

EQT Corporation and Subsidiaries
Notes to the Unaudited Pro Forma Condensed Combined Financial Information

1. Basis of Presentation

The proforma financial statements have been prepared to reflect the effects of the Acquisition on the consolidated financial statements of EQT. The unaudited proforma condensed combined balance sheet (the “proforma balance sheet”) is presented as if the Acquisition and the Notes Offering, including the application of the net proceeds therefrom, had occurred on March31, 2021. The unaudited proforma condensed combined statements of operations (the “proforma statements of operations”) for the threemonths ended March31, 2021 and for the year ended December31, 2020 are presented as if the Acquisition and the Notes Offering, including the application of the net proceeds therefrom, had occurred on January1, 2020. The historical consolidated financial information has been adjusted to reflect factually supportable items that are directly attributable to the Acquisition.

The proforma financial statements have been prepared using the acquisition method of accounting using the accounting guidance in Accounting Standards Codification (“ASC”) 805, with EQT treated as the acquirer. The acquisition method of accounting is dependent upon certain valuations and other studies that have yet to commence or progress to a stage where there is sufficient information for a definitive measure. Accordingly, the proforma adjustments are preliminary, have been made solely for the purpose of providing proforma financial information and are subject to revision based on a final determination of fair value as of the closing date of the Acquisition. Differences between these preliminary estimates and the final allocation of the consideration to be paid to Alta Resources for the Acquisition (the “Purchase Price”) may have a material impact on the accompanying proforma financial statements.

Alta Resources’ historical amounts have been derived from Alta Resources' audited and unaudited financial statements included as Exhibits 99.1 and 99.2, respectively, in the Current Report on Form 8-K filed by EQT on July 22, 2021. As Alta Resources prepares its annual financial statements on a fiscal year basis, the amounts reflected in the proforma statement of operations for the year ended December31, 2020 for Alta Resources have been adjusted to a calendar year end to conform with EQT’s financial presentation. Certain of Alta Resources’ historical amounts have been reclassified to conform to the financial presentation of EQT. The proforma financial statements are provided for informational purposes only and do not purport to represent what the actual consolidated results of operations or the consolidated financial position of EQT would have been had the Acquisition occurred on the dates assumed, nor are they necessarily indicative of future consolidated results of operations or consolidated financial position.

EQT Corporation and Subsidiaries
Notes to the Unaudited Pro Forma Condensed Combined Financial Information

2. Pro Forma Adjustments and Assumptions

The proforma adjustments are based on currently available information and certain estimates and assumptions that EQT believes are reasonable. The actual effects of the Acquisition and the Notes Offering will differ from the proforma adjustments. A general description of the proforma adjustments are provided below.

(a) These adjustments reflect the estimated value of net consideration to be paid by the Company in the Acquisition and the adjustment of the historical book values of Alta Resources’ assets and liabilities as of March31, 2021 to their estimated fair values. The following table represents the preliminary Purchase Price allocation to the assets acquired and liabilities assumed from Alta Resources. This preliminary Purchase Price allocation has been used to prepare proforma adjustments in the proforma balance sheet and the proforma statements of operations. The final Purchase Price allocation will be determined when EQT has completed the detailed valuations and necessary calculations subsequent to closing the Acquisition. The final Purchase Price allocation will differ from these estimates and could differ materially from the preliminary allocation used in the proforma adjustments.

Pursuant to the Purchase Agreement, consideration for the Acquisition will consist of (i)$1.0billion in cash (the “Cash Consideration”), a portion of which will be utilized to extinguish Alta Marcellus’ indebtedness consisting of balances outstanding under its revolving credit facility and the 7.75% Senior Secured Second-Priority Notes due 2024 (the “Second Lien Notes”) (as further described in (b)below) and (ii)a number of shares of common stock, no par value, of EQT (“Common Stock”) to be determined by dividing $1,925million of base consideration, plus or minus certain Purchase Price adjustments (as described in the Purchase Agreement), by the volume-weighted average per share price of the Common Stock on the New York Stock Exchange for the 30-day trading period prior to the execution date of the Purchase Agreement (the “Stock Consideration”). As of March31, 2021, the calculation would result in the issuance of approximately 97,750,995 shares of Common Stock valued at $1,816million (based on the closing price of the Common Stock as of March31, 2021 of $18.58 and after giving effect to approximately $132.2million of certain Purchase Price adjustments which would reduce the Purchase Price).

The preliminary Purchase Price allocation is subject to change as a result of several factors, including, but not limited to:

◾	changes in the market value of the shares of Common Stock issued as the Stock Consideration, with the number of such shares being calculated based on the volume-weighted average per share price of the Common Stock for the 30-day trading period prior to the execution date of the Purchase Agreement;
◾	changes in the Purchase Price adjustments set forth in the Purchase Agreement increasing or decreasing the $1,925million of Stock Consideration; and
◾	changes in the estimated fair value of the Alta Resources’ assets acquired and liabilities assumed as of the closing date of the Acquisition, which could result from changes in future commodity prices, reserve estimates, cost assumptions, interest rates and other facts and circumstances existing as of the closing date of the Acquisition compared to the proforma financial statements included herein.

EQT Corporation and Subsidiaries
Notes to the Unaudited Pro Forma Condensed Combined Financial Information

	Preliminary Purchase Price Allocation
	(Thousands)
Consideration:
Fair value of EQT common stock to be issued	$	1,816,213
Cash		1,000,000
Total consideration	$	2,816,213
Fair value of assets acquired:
Cash and cash equivalents	$	25,122
Accounts receivable, net		91,291
Derivative instruments, at fair value		35,665
Prepaid expenses and other		1,774
Property, plant and equipment		2,872,572
Other assets		9,547
Amount attributable to assets acquired	$	3,035,971
Fair value of liabilities assumed:
Accounts payable	$	117,430
Derivative instruments, at fair value		35,998
Other current liabilities		9,547
Other liabilities and credits		56,783
Amount attributable to liabilities assumed	$	219,758

The final value of the Purchase Price to be paid by the Company will be determined based on the actual number of shares of Common Stock issued and the market price of the Common Stock at the closing date of the of the Acquisition. A 10% increase or decrease in the closing price of the Common Stock, as compared to the March31, 2021 closing price of $18.58, would increase or decrease the total Purchase Price by approximately $181.6million, assuming all other factors are held constant. The estimated fair value of property, plant and equipment to be acquired based on information available as of the preparation of the proforma financial statements included the following:

	Preliminary Purchase Price Allocation
	(Thousands)
Natural gas and oil proved properties	$	2,184,114
Natural gas and oil unproved properties		433,432
Other property, plant and equipment		255,026
Pro forma fair value of property, plant and equipment	$	2,872,572

The proforma fair value of natural gas properties was measured using valuation techniques that convert future cash flows into a single discounted amount. Significant inputs to the valuation of natural gas and oil properties include estimates of: (i)recoverable reserves; (ii)production rates; (iii)future operating and development costs; (iv)future commodity prices; and (v)a market-based weighted average cost of capital. NYMEX strip pricing as of March31, 2021 was utilized in determining the proforma fair value of reserves at a discount rate of 9.5%, after adjustment for expenses and basis differential. An increase or decrease in commodity prices, recoverable reserves, future operating or development costs or any of the other inputs noted above, as of the closing date, will result in a corresponding increase or decrease in the fair value of natural gas properties.

EQT Corporation and Subsidiaries
Notes to the Unaudited Pro Forma Condensed Combined Financial Information

(b) Proforma adjustments related to the planned extinguishment of the Second Lien Notes and credit facility of Alta Marcellus (the “Alta Resources Debt”) at or near the closing date, and the elimination of the associated interest rate swaps, including:

i. A decrease in cash and cash equivalents and derivative instruments of $12.2million reflecting the settlement of the interest rate hedges in a net liability position ahead of closing the Acquisition.

ii. A decrease in credit facility borrowings of $435.0million and Second Lien Notes of $85.9million reflecting the carrying value of the Alta Resources Debt.

iii. A decrease in other current liabilities of $0.9million for the settlement of accrued interest.

iv. A decrease in dividend and other income of $1.7million for the threemonths ended March31, 2021 due to the elimination of the gain on the interest rate hedges.

v. A decrease in interest expense of $6.9million for the threemonths ended March31, 2021 reflecting the elimination of Alta Resources’ historical interest expense and amortization of deferred financing fees.

vi. An increase in dividend and other income of $11.9million for the year ended December31, 2020 due to the elimination of the loss on the interest rate hedges.

vii. A decrease in interest expense of $30.4million for the year ended December31, 2020 consisting of the elimination of Alta Resources’ historical interest expense and amortization of deferred financing fees.

(c) The following proforma adjustments eliminate historical transactions between Alta Resources and the Company that would be treated as intercompany transactions on a consolidated basis.

i. Elimination of $2.6million of receivables and corresponding payables for gas sales and transmission transactions on the proforma balance sheet as of March31, 2021.

ii. Elimination of $9.6million in derivative liabilities and $8.9million in derivative assets related to the elimination of open gas purchase and sale positions that are accounted for as derivative instruments by EQT.

iii. These historical transactions did not have a material impact on the proforma statements of operations and thus no proforma adjustments were included on the proforma statement of operations for the threemonths ended March31, 2021 or the year ended December31, 2020.

(d)	Proforma reclassifications made to conform to EQT’s presentation, including:
	��

i. the reclassification of derivative assets and liabilities from long-term to current; and

ii. to remove certain net marketing services amounts from revenue and expense for net presentation.

(e) Proforma adjustments to capitalize the right-of-use assets and related current and non-current lease liabilities for assumed lease obligations pursuant to ASC 842, which had not yet been adopted by Alta Resources as of March31, 2021 in accordance with applicable private company accounting standards.

(f) Proforma adjustment for estimated transaction costs of $23.1million related to the Acquisition, including underwriting, banking, legal and accounting fees that are not capitalized as part of the Acquisition.

(g) Proforma adjustments to reflect delay rental lease payments and other exploratory costs capitalized by Alta Resources under the full cost method of accounting that would have been expensed to exploration expense under the successful efforts method of accounting for oil and gas properties.

EQT Corporation and Subsidiaries
Notes to the Unaudited Pro Forma Condensed Combined Financial Information

(h) Proforma adjustments to eliminate Alta Resources’ historical impairment charges recorded under the ceiling test of the full cost method of accounting to conform to EQT’s successful efforts method of accounting for oil and gas properties.

(i) Proforma adjustment to show the elimination of the Alta Resources equity on the proforma balance sheet and other equity impacts from the estimated transaction costs, the adjustment of historical transactions between Alta and the Company and adjustments related to deferred income taxes.

(j) Proforma adjustment to increase depreciation and depletion expense due to the following:

i. the increase in the estimated fair value of property, plant and equipment;

ii. the depreciation of gathering pipelines over a 50-year useful life and the depreciation of compression and measurement assets over a 25-year useful life separate from the upstream oil and gas assets; and

iii. the increase in accretion expense related to the higher asset retirement obligation liability which was adjusted to reflect EQT’s internal plugging cost estimates, discount rate and useful life estimates.

(k) The proforma income tax adjustments included in the proforma statements of operations and proforma balance sheet reflect the income tax effects of Alta Resources’ historical information as well as the income tax effects of the proforma adjustments presented herein. The proforma income tax adjustments related to Alta Resources’ historical information are to conform Alta Resources’ historical information, which is derived based on a non-taxable corporate structure, with EQT’s taxable corporate structure. The tax rate applied to the proforma adjustments was the statutory federal and apportioned statutory state tax rate, net of the federal benefit of state taxes, applied to pre-tax income. The proforma statements of operations also reflect the following non-recurring adjustments to arrive at a net deferred tax liability balance of $1,350.2million for the proforma balance sheet:

i. income tax expense of $20million due to a remeasurement of deferred income taxes to reflect the combined state apportionment rates; and

ii. income tax benefit of $22million due to a reduction of the Company’s deferred tax valuation allowance. Since Alta will be included in the Company’s consolidated tax return following the Acquisition, it has determined that the resulting reversal of taxable temporary differences related to the Acquisition allows the Company to realize a portion of its state deferred tax assets that were previously valued.

(l) The following proforma adjustments reflect the impact of the Notes Offering, the proceeds of which will be used to fund a portion of the Cash Consideration:

i. An increase in cash and cash equivalents and senior notes of $984.4million reflecting the issuance of $1.0billion aggregate principal of the notes, net of $15.6million of issuance costs and debt discounts.

ii. An increase in interest expense of $9.0million for the threemonths ended March31, 2021 and $36.1million for the year ended December31, 2020 relating to the expected issuance of the notes. A onepercent change in the assumed interest rate of the notes would increase or decrease the interest expense by $2.5million and $10.0million for the threemonths ended March31, 2021 and for the year ended December31, 2020, respectively.

The proforma financial statements do not reflect any compensation-related adjustments as certain personnel matters are evolving and any recurring impact from compensation adjustments would not be factually supportable.

EQT Corporation and Subsidiaries
Notes to the Unaudited Pro Forma Condensed Combined Financial Information

3. Supplemental Pro Forma Natural Gas, NGLs and Crude Oil Reserves Information

The following tables present the estimated proforma combined net proved developed and undeveloped, natural gas, natural gas liquids (“NGLs”) and crude oil reserves as of December31, 2020, along with a summary of changes in quantities of net remaining proved reserves during the year ended December31, 2020. The proforma reserve information set forth below gives effect to the Acquisition as if it had occurred on January1, 2020.

The following estimated proforma reserve information is not necessarily indicative of the results that might have occurred had the Acquisition taken place on January1, 2020 and is not intended to be a projection of future results. Future results may vary significantly from the results reflected because of various factors.

For all tables presented, NGLs and crude oil were converted at a rate of one million barrels (“MMbbl”) to approximately six billion cubic feet (“Bcf”).

Natural gas, NGLs and oil	EQT Historical			Alta Resources Historical			Pro Forma Combined
	(Bcfe)
Proved developed and undeveloped reserves:
Balance at January 1, 2020		17,469.4			3,739.1			21,208.4
Revision of previous estimates		(739.2	)		544.6			(194.6	)
Purchase of hydrocarbons in place		1,380.6			—			1,380.6
Sale of hydrocarbons in place		(256.7	)		(17.9	)		(274.5	)
Extensions, discoveries and other additions		3,445.8			165.8			3,611.6
Production		(1,497.8	)		(300.2	)		(1,798.0	)
Balance at December 31, 2020		19,802.1			4,131.3			23,933.4
Proved developed reserves:
Balance at January 1, 2020		12,444.0			1,855.9			14,299.9
Balance at December 31, 2020		13,641.3			1,944.7			15,586.1
Proved undeveloped reserves:
Balance at January 1, 2020		5,025.4			1,883.2			6,908.6
Balance at December 31, 2020		6,160.7			2,186.6			8,347.3

Natural gas	EQT Historical			Alta Resources Historical			Pro Forma Combined
	(Bcf)
Proved developed and undeveloped reserves:
Balance at January 1, 2020		16,677.2			3,739.1			20,416.3
Revision of previous estimates		(781.7	)		544.6			(237.1	)
Purchase of natural gas in place		1,209.3			—			1,209.3
Sale of natural gas in place		(254.9	)		(17.9	)		(272.8	)
Extensions, discoveries and other additions		3,433.9			165.8			3,599.6
Production		(1,418.8	)		(300.2	)		(1,719.0	)
Balance at December 31, 2020		18,865.0			4,131.3			22,996.3
Proved developed reserves:
Balance at January 1, 2020		11,811.5			1,855.9			13,667.4
Balance at December 31, 2020		12,750.3			1,944.7			14,695.0
Proved undeveloped reserves:
Balance at January 1, 2020		4,865.7			1,883.2			6,748.9
Balance at December 31, 2020		6,114.7			2,186.6			8,301.3

EQT Corporation and Subsidiaries
Notes to the Unaudited Pro Forma Condensed Combined Financial Information

NGLs	EQT Historical			Alta Resources Historical		Pro Forma Combined
	(MMbbl)
Proved developed and undeveloped reserves:
Balance at January 1, 2020		127.0			—		127.0
Revision of previous estimates		6.8			—		6.8
Purchase of NGLs in place		25.9			—		25.9
Sale of NGLs in place		(0.3	)		—		(0.3	)
Extensions, discoveries and other additions		1.8			—		1.8
Production		(12.4	)		—		(12.4	)
Balance at December 31, 2020		148.8			—		148.8
Proved developed reserves:
Balance at January 1, 2020		100.9			—		100.9
Balance at December 31, 2020		141.5			—		141.5
Proved undeveloped reserves:
Balance at January 1, 2020		26.0			—		26.0
Balance at December 31, 2020		7.3			—		7.3

Oil	EQT Historical			Alta Resources Historical		Pro Forma Combined
	(MMbbl)
Proved developed and undeveloped reserves:
Balance at January 1, 2020		5.1			—		5.1
Revision of previous estimates		0.3			—		0.3
Purchase of oil in place		2.7			—		2.7
Sale of oil in place		—			—		—
Extensions, discoveries and other additions		0.2			—		0.2
Production		(0.8	)		—		(0.8	)
Balance at December 31, 2020		7.4			—		7.4
Proved developed reserves:
Balance at January 1, 2020		4.5			—		4.5
Balance at December 31, 2020		7.0			—		7.0
Proved undeveloped reserves:
Balance at January 1, 2020		0.6			—		0.6
Balance at December 31, 2020		0.4			—		0.4

EQT Corporation and Subsidiaries
Notes to the Unaudited Pro Forma Condensed Combined Financial Information

The following table summarizes the proforma standard measure of discounted future net cash flows from natural gas and crude oil reserves as of December31, 2020:

	EQT Historical			Alta Resources Historical			Pro Forma Adjustments			Pro Forma Combined
	(Thousands)
Future cash inflows	$	27,976,557		$	5,260,721		$	—		$	33,237,278
Future production costs		(16,344,965	)		(2,315,747	)		—			(18,660,712	)
Future development costs		(2,268,109	)		(1,152,729	)		—			(3,420,838	)
Future income tax expenses		(1,820,341	)		—			(10,516	)		(1,830,857	)
Future net cash flow		7,543,142			1,792,245			(10,516	)		9,324,871
10% annual discount for estimated timing of cash flows		(4,176,684	)		(1,001,815	)		5,260			(5,173,239	)
Standardized measure of discounted future net cash flows	$	3,366,458		$	790,430		$	(5,256	)	$	4,151,632

The following table summarizes the changes in the proforma standard measure of discounted future net cash flows from natural gas and crude oil reserves for the year ended December31, 2020:

	EQT Historical			Alta Resources Historical			Pro Forma Adjustments			Pro Forma Combined
	(Thousands)
Net sales and transfers of natural gas and oil produced	$	(784,163	)	$	(223,637	)	$	—		$	(1,007,800	)
Net changes in prices, production and development costs		(6,761,447	)		(1,336,656	)		—			(8,098,103	)
Extensions, discoveries and improved recovery, net of related costs		714,808			(9,491	)		—			705,317
Development costs incurred		797,796			223,588			—			1,021,384
Net purchase of minerals in place		350,075			—			—			350,075
Net sale of minerals in place		(226,497	)		(5,069	)		—			(231,566	)
Revisions of previous quantity estimates		(324,415	)		(217,723	)		—			(542,138	)
Accretion of discount		849,267			185,907			—			1,035,174
Net change in income taxes		152,978			—			(5,256	)		147,722
Timing and other		105,383			(44,680	)		—			60,703
Net (decrease) increase		(5,126,215	)		(1,427,761	)		(5,256	)		(6,559,232	)
Balance at January 1, 2020		8,492,673			2,218,191			—			10,710,864
Balance at December 31, 2020	$	3,366,458		$	790,430		$	(5,256	)	$	4,151,632