Alta Mesa 8-K Entry into a Material Definitive Agreement

Exhibit 99.2

ALTA MESA HOLDINGS, LP

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The following unaudited pro forma condensed consolidated financial statements and explanatory notes give effect to the sale of all our oil and natural gas assets in Weeks Island field to Texas Petroleum Investment Company on December 30, 2017 and the disposition of all our remaining oil and natural gas assets that were not located in the STACK prior to the closing of the Business Combination with Alta Mesa Resources Inc. (formerly Silver Run Acquisition Corporation II, a Delaware corporation (“AMR”), to High Mesa Holdings, L.P, a Delaware limited partnership.

The unaudited pro forma condensed consolidated financial statements and explanatory notes are based on the estimates and assumptions set forth in the explanatory notes. The unaudited pro forma condensed consolidated financial statements have been prepared utilizing our historical consolidated financial statements, and should be read in conjunction with the historical consolidated financial statements and notes thereto.

The unaudited pro forma consolidated statements of operations have been prepared as if the sale transaction and the disposition of the remainingnon-STACK assets had been consummated on January 1, 2014. The unaudited condensed consolidated balance sheet has been prepared as if the sale transaction and the disposition of the remainingnon-STACK assets had been consummated on September 30, 2017.

The unaudited pro forma condensed consolidated financial statements are presented for informational purposes only, are based on certain assumptions that we believe are reasonable, and do not purport to represent our financial condition or our results of operations had the business combinations occurred on the dates noted above or to project the results for any future date or period. In the opinion of management, all adjustments have been made that are necessary to present fairly the unaudited pro forma condensed consolidated financial information.

The unaudited pro forma condensed consolidated financial statements and explanatory notes are based on the estimates and assumptions set forth in the explanatory notes.

ALTA MESA HOLDINGS, LP

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET

AS OF SEPTEMBER 30, 2017

						Pro forma
	September 30,		Pro forma			September 30,
	2017		Adjustments (a)			2017
	(in thousands)
ASSETS
CURRENT ASSETS
Cash and cash equivalents	$	3,740	$	(62	)	$	3,678
Short-term restricted cash		1,173		—			1,173
Accounts receivable, net of allowance of $802		71,260		(4,775	)		66,485
Other receivables		679		(154	)		525
Receivable due from affiliate		839		—			839
Prepaid expenses and other current assets		2,215		(1	)		2,214
Derivative financial instruments		6,952		—			6,952
TOTAL CURRENT ASSETS		86,858		(4,992	)		81,866
PROPERTY AND EQUIPMENT
Oil and natural gas properties, successful efforts method, net		944,867		(102,254	)		842,613
Other property and equipment, net		9,139		(2,709	)		6,430
TOTAL PROPERTY AND EQUIPMENT, NET		954,006		(104,963	)		849,043
OTHER ASSETS
Investment in LLC — cost		9,000		(9,000	)		—
Deferred financing costs, net		1,943		—			1,943
Notes receivable due from affiliate		12,121		—			12,121
Deposits and other long-term assets		14,686		(1,185	)		13,501
Derivative financial instruments		5,282		—			5,282
TOTAL OTHER ASSETS		43,032		(10,185	)		32,847
TOTAL ASSETS	$	1,083,896	$	(120,140	)	$	963,756
LIABILITIES AND PARTNERS’ CAPITAL
CURRENT LIABILITIES
Accounts payable and accrued liabilities	$	144,546	$	(5,748	)	$	138,798
Advances fromnon-operators		3,872		—			3,872
Advances from related party		47,794		—			47,794
Asset retirement obligations		3,960		(3,926	)		34
Derivative financial instruments		348		—			348
TOTAL CURRENT LIABILITIES		200,520		(9,674	)		190,846
LONG-TERM LIABILITIES
Asset retirement obligations, net of current portion		65,152		(55,419	)		9,733
Long-term debt, net		565,247		(22,483	)		542,764
Notes payable to founder		27,861		—			27,861
Other long-term liabilities		7,613		(2,902	)		4,711
TOTAL LONG-TERM LIABILITIES		665,873		(80,804	)		585,069
TOTAL LIABILITIES		866,393		(90,478	)		775,915
PARTNERS’ CAPITAL		217,503		(29,662	)		187,841
TOTAL LIABILITIES AND PARTNERS’ CAPITAL	$	1,083,896	$	(120,140	)	$	963,756

See notes to the unaudited pro forma condensed consolidated financial statements.

F-1

ALTA MESA HOLDINGS, LP

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2017

							Pro forma
	September 30,			Pro forma			September 30,
	2017			Adjustments (a)			2017
	(in thousands)
Operating revenues and other
Oil, natural gas and natural gas liquids	$	230,205		$	(45,698	)	$	184,507
Other revenues		274			(274	)		—
Total operating revenues		230,479			(45,972	)		184,507
Gain on acquisition of oil and natural gas properties		6,893			(1,626	)		5,267
Gain on derivative contracts		38,024			—			38,024
Total operating revenues and other		275,396			(47,598	)		227,798
Operating expenses
Lease and plant operating expense		49,836			(21,944	)		27,892
Marketing and transportation		21,566			(1,080	)		20,486
Production and ad valorem taxes		8,812			(5,101	)		3,711
Workover expense		5,112			(1,981	)		3,131
Exploration expense		19,930			(8,042	)		11,888
Depreciation, depletion, and amortization expense		80,082			(16,836	)		63,246
Impairment expense		29,206			(28,018	)		1,188
Accretion expense		1,447			(1,213	)		234
General and administrative expense		35,534			(66	)		35,468
Total operating expenses		251,525			(84,281	)		167,244
Income (loss) from operations		23,871			36,683			60,554
Other income (expense)
Interest expense, net		(38,189	)		(88	)		(38,277	)
Total other income (expense)		(38,189	)		(88	)		(38,277	)
Income (loss) before income taxes		(14,318	)		36,595			22,277
Provision for (benefit from) state income taxes		285			(285	)		—
Income (loss) from continuing operations	$	(14,603	)	$	36,880		$	22,277

See notes to the unaudited pro forma condensed consolidated financial statements.

F-2

ALTA MESA HOLDINGS, LP

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31, 2016

							Pro forma
	December 31,			Pro forma			December 31,
	2016			Adjustments (a)			2016
	(in thousands)
Operating revenues and other
Oil, natural gas and natural gas liquids	$	210,293		$	(70,287	)	$	140,006
Other revenues		415			(214	)		201
Total operating revenues		210,708			(70,501	)		140,207
Gain (loss) on sale of assets		3,542			(3,539	)		3
Gain (loss) on derivative contracts		(40,460	)		—			(40,460	)
Total operating revenues and other		173,790			(74,040	)		99,750
Operating expenses
Lease and plant operating expense		56,893			(29,474	)		27,419
Marketing and transportation		13,326			(1,698	)		11,628
Production and ad valorem taxes		10,750			(7,985	)		2,765
Workover expense		4,714			(1,273	)		3,441
Exploration expense		24,777			(7,547	)		17,230
Depreciation, depletion, and amortization expense		92,901			(39,416	)		53,485
Impairment expense		16,306			(15,924	)		382
Accretion expense		2,174			(1,904	)		270
General and administrative expense		41,758			(1,290	)		40,468
Total operating expenses		263,599			(106,511	)		157,088
Income (loss) from operations		(89,809	)		32,471			(57,338	)
Other income (expense)
Interest expense, net		(59,990	)		(10	)		(60,000	)
Loss on extinguishment of debt		(18,151	)		—			(18,151	)
Total other income (expense)		(78,141	)		(10	)		(78,151	)
Income (loss) before income taxes		(167,950	)		32,461			(135,489	)
Provision for (benefit from) state income taxes		(29	)		29			—
Income (loss) from continuing operations	$	(167,921	)	$	32,432		$	(135,489	)

See notes to the unaudited pro forma condensed consolidated financial statements.

ALTA MESA HOLDINGS, LP

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31, 2015

	December 31, 2015			Pro forma Adjustments (a)			Pro forma December 31, 2015
	(in thousands)
Operating revenues and other
Oil, natural gas and natural gas liquids	$	241,284		$	(108,166	)	$	133,118
Other revenues		682			(192	)		490
Total operating revenues		241,966			(108,358	)		133,608
Gain (loss) on sale of assets		67,781			(167	)		67,614
Gain on derivative contracts		124,141			—			124,141
Total operating revenues and other		433,888			(108,525	)		325,363
Operating expenses
Lease and plant operating expense		67,706			(40,294	)		27,412
Marketing and transportation expense		4,030			(2,320	)		1,710
Production and ad valorem taxes		15,131			(12,024	)		3,107
Workover expense		6,511			(3,980	)		2,531
Exploration expense		42,718			(32,944	)		9,774
Depreciation, depletion, and amortization expense		143,969			(82,697	)		61,272
Impairment expense		176,774			(157,975	)		18,799
Accretion expense		2,076			(1,869	)		207
General and administrative expense		44,454			(6,600	)		37,854
Total operating expenses		503,369			(340,703	)		162,666
Income (loss) from operations		(69,481	)		232,178			162,697
Other income (expense)
Interest expense, net		(61,750	)		43			(61,707	)
Total other income (expense)		(61,750	)		43			(61,707	)
Income (loss) before state income taxes		(131,231	)		232,221			100,990
Provision for state income taxes		562			—			562
Income (loss) from continuing operations	$	(131,793	)	$	232,221		$	100,428

See notes to the unaudited pro forma condensed consolidated financial statements.

ALTA MESA HOLDINGS, LP

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31, 2014

							Pro forma
	December 31,			Pro forma			December 31,
	2014			Adjustments (a)			2014
	(in thousands)
Operating revenues and other
Oil, natural gas and natural gas liquids	$	431,125		$	(314,464	)	$	116,661
Other		1,003			(321	)		682
Total operating revenues		432,128			(314,785	)		117,343
Gain (loss) on sale of assets		87,520			(87,515	)		5
Gain oil and natural gas derivative contracts		96,559			—			96,559
Total operating revenues and other		616,207			(402,300	)		213,907
Operating expenses
Lease and plant operating expense		64,686			(46,700	)		17,986
Marketing and transportation expense		9,134			(8,052	)		1,082
Production and ad valorem taxes		28,214			(25,360	)		2,854
Workover expense		8,961			(6,318	)		2,643
Exploration expense		61,912			(50,080	)		11,832
Depreciation, depletion, and amortization expense		141,804			(112,742	)		29,062
Impairment expense		74,927			(74,924	)		3
Accretion expense		2,198			(1,911	)		287
General and administrative expense		69,198			(833	)		68,365
Total operating expenses		461,034			(326,920	)		134,114
Income (loss) from operations		155,173			(75,380	)		79,793
Other income (expense)
Interest expense, net		(55,797	)		45			(55,752	)
Total other income (expense)		(55,797	)		45			(55,752	)
Income (loss) before state income taxes		99,376			(75,335	)		24,041
Provision for state income taxes		176			—			176
Income (loss) from continuing operations	$	99,200		$	(75,335	)	$	23,865

See notes to the unaudited pro forma condensed consolidated financial statements.

NOTESTO ALTA MESA HOLDINGS, LP.

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. Description of the transaction

On December 30, 2017, we closed the sale of all our oil and natural gas properties in Weeks Island field, to Texas Petroleum Investment Company, a Texas corporation for a net proceeds $22.6 million, net of purchase price adjustments. The net proceeds were used to reduce amounts outstanding under the Company’s senior secured revolving credit facility. The oil and natural gas producing properties are located primarily in the Iberia Parish, Louisiana.

In connection with the closing of the Business Combination with Alta Mesa Resources Inc. (formerly Silver Run Acquisition Corporation II, a Delaware corporation (“AMR”), we have completed our transition from a diversified asset base composed of a portfolio of conventional assets to an unconventional oil and liquids-rich resource play in the eastern portion of the Anadarko Basin in Oklahoma (the “STACK”) with an extensive inventory of drilling opportunities. The STACK is an acronym describing both its location—Sooner Trend Anadarko Basin Canadian and Kingfisher County—and the multiple, stacked productive formations present in the area.

On February 8, 2018, just prior to the closing of the Business Combination, we assigned the remainder of ournon-STACK assets to High Mesa Holdings, L.P. (“HMH, LP”), our parent company. At the time of the disposition, management estimated the carrying value of Alta Mesa’s remainingnon-STACK assets to be $42.8 million with liabilities of $52.5 million, which liabilities include $44.6 million of asset retirement obligations. The remainder of ournon-STACK oil and natural gas properties are primarily located in East Texas, Florida, South Texas and South Louisiana.

Although the Weeks Island field sale was not individually significant, we have presented the pro forma effects of both elements of thenon-STACK assets divestiture in these pro forma financial statements because they collectively comprise a strategic shift in our operations. The results of operations related to the Weeks Island field and the remainingnon-STACK assets (collectively the“non-STACK Assets Divestiture”) will be reported as discontinued operations.

2. Basis of Presentation

The unaudited pro forma condensed consolidated financial information was prepared in accordance with Securities and Exchange Commission (“SEC”) rules which are subject to change and interpretation and was based on the historical consolidated financial statements of Alta Mesa.

The pro forma adjustments to historical financial information are based on currently available information and certain estimates and assumptions and therefore the actual effects of this transaction will differ from the pro forma adjustments.

3. Adjustments and Assumptions to the Unaudited Pro Forma Condensed Consolidated Balance Sheet as of September 30, 2017

The unaudited pro forma condensed consolidated balance sheet as of September 30, 2017 reflects the following adjustments assuming thenon-STACK Assets Divestiture occurred on September 30, 2017:

a) Reflects the assets and liabilities of thenon-STACK assets that were disposed of as part of thenon-STACK Assets Divestiture.

b) Reflects the net proceeds from the sale of the Weeks Island field to reduce amounts outstanding under the Company’s senior secured revolving credit facility.

4) Adjustments and Assumptions to the Unaudited Pro Forma Condensed Consolidated Combined Statement of Operations for the Nine Months Ended September 30, 2017

The unaudited pro forma condensed consolidated combined statement of operations for the nine months ended September 30, 2017 reflects the following adjustments assuming thenon-STACK Assets Divestiture occurred on January 1, 2016:

a) Reflects the operating results of thenon-STACK assets disposed of as part of thenon-STACK Assets Divestiture

5) Adjustments and Assumptions to the Unaudited Pro Forma Condensed Consolidated Combined Statement of Operations for the Years Ended December 31, 2016, 2015 and 2014

The unaudited pro forma condensed consolidated combined statement of operations for the years ended December 31, 2016, 2015 and 2014 reflects the following adjustments assuming thenon-STACK Assets Divestiture occurred on January 1, 2014:

a) Reflects the operating results of thenon-STACK assets disposed of as part of thenon-STACK Assets Divestiture