Riviera Resources (RVRA) 10-Q 8 Aug 19 2019 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 31, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Amendment Flag	false
Trading Symbol	RVRA
Entity Registrant Name	Riviera Resources, Inc.
Entity Central Index Key	0001737204
Current Fiscal Year End	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		60,629,343
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	333-225927
Entity Tax Identification Number	825121920
Entity Address, Address Line One	600 Travis Street
Entity Address, Address Line Two	Suite 1700
Entity Address, City or Town	Houston
Entity Address, State or Province	Texas
Entity Address, Postal Zip Code	77002
City Area Code	281
Local Phone Number	840-4000

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 80,229	$ 18,529
Accounts receivable – trade, net	82,218	114,489
Derivative instruments	18,447	10,758
Restricted cash	26,457	31,248
Other current assets	14,638	26,721
Assets held for sale	49,090	38,396
Total current assets	271,079	240,141
Noncurrent assets:
Oil and natural gas properties (successful efforts method)	692,815	756,552
Less accumulated depletion and amortization	(101,033)	(93,507)
Oil and natural gas properties, successful efforts method, net	591,782	663,045
Other property and equipment	646,425	606,244
Less accumulated depreciation	(79,275)	(62,368)
Other property and equipment, net	567,150	543,876
Derivative instruments	2,048	4,603
Deferred income taxes	126,646	129,091
Other noncurrent assets	7,389	12,078
Noncurrent assets, excluding property, total	136,083	145,772
Total noncurrent assets	1,295,015	1,352,693
Total assets	1,566,094	1,592,834
Current liabilities:
Accounts payable and accrued expenses	122,188	159,228
Derivative instruments	5,471	4,719
Other accrued liabilities	24,656	34,474
Liabilities held for sale	10,303	3,725
Total current liabilities	173,311	202,146
Noncurrent liabilities:
Derivative instruments	166	0
Credit facilities	33,500	24,500
Asset retirement obligations	91,480	103,814
Other noncurrent liabilities	9,630	0
Total noncurrent liabilities	200,617	128,314
Commitments and contingencies (Note 10)
Equity:
Preferred Stock ($0.01 par value, 30,000,000 shares authorized; no shares issued at June 30, 2019, or December 31, 2018)	0	0
Common Stock ($0.01 par value, 270,000,000 shares authorized; 63,621,542 shares and 69,197,284 shares issued at June 30, 2019, and December 31, 2018, respectively)	636	692
Additional paid-in capital	1,180,528	1,256,730
Retained earnings	11,002	4,952
Total equity	1,192,166	1,262,374
Total liabilities and equity	1,566,094	1,592,834
Mayzure
Current assets:
Restricted cash	1,000
Current liabilities:
Current portion of Mayzure notes payable	10,693	0
Noncurrent liabilities:
Mayzure notes payable, net	$ 65,841	$ 0

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	30,000,000	30,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	270,000,000	270,000,000
Common stock, shares, issued	63,621,542	69,197,284

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019		Jun. 30, 2018
Revenues and other:
Revenues	$ 125,301	$ 136,358	$ 274,996		$ 325,395
Gains (losses) on commodity derivatives	20,249	(7,525)	7,008		(22,555)
Total revenues	145,550	128,833	282,004		302,840
Expenses:
Lease operating expenses	23,845	24,088	47,897		71,972
Transportation expenses	18,053	21,213	37,203		40,307
Marketing expenses	41,811	40,327	95,200		82,082
General and administrative expenses	13,489	92,395	32,480		137,174
Exploration costs	969	53	2,207		1,255
Depreciation, depletion and amortization	23,181	21,980	44,953		50,445
Impairment of assets held for sale	18,390	0	18,390	[1]	0
Taxes, other than income taxes	2,599	7,115	8,899		15,567
Losses (gains) on sale of assets and other, net	9,885	(101,934)	(17,380)		(208,230)
Total expenses	152,222	105,237	269,849		190,572
Other income and (expenses):
Interest expense, net of amounts capitalized	(2,103)	(584)	(3,074)		(988)
Other, net	476	538	(113)		368
Total other income and (expenses)	(1,627)	(46)	(3,187)		(620)
Reorganization items, net	(424)	(1,259)	(472)		(3,210)
(Loss) income from continuing operations before income taxes	(8,723)	22,291	8,496		108,438
Income tax (benefit) expense	(2,047)	13,336	2,446		64,875
(Loss) income from continuing operations	(6,676)	8,955	6,050		43,563
Income (loss) from discontinued operations, net of income taxes	0	(1,758)	0		34,573
Net (loss) income	$ (6,676)	$ 7,197	$ 6,050		$ 78,136
Income (loss) per share:
(Loss) income from continuing operations per share ‒ Basic	$ (0.10)	$ 0.11	$ 0.09		$ 0.58
(Loss) income from continuing operations per share ‒ Diluted	(0.10)	0.11	0.09		0.58
Income (loss) from discontinued operations per share ‒ Basic	0	(0.02)	0		0.45
Income (loss) from discontinued operations per share ‒ Diluted	0	(0.02)	0		0.45
Net (loss) income per share ‒ Basic	(0.10)	0.09	0.09		1.03
Net (loss) income per share ‒ Diluted	$ (0.10)	$ 0.09	$ 0.09		$ 1.03
Weighted average shares outstanding ‒ Basic	65,005	76,191	66,900		76,191
Weighted average shares outstanding ‒ Diluted	65,089	76,191	67,079		76,191
Oil, Natural Gas and NGL Sales
Revenues and other:
Revenues	$ 66,757	$ 87,004	$ 143,102		$ 223,880
Marketing
Revenues and other:
Revenues	53,394	42,967	120,741		89,234
Other Revenues
Revenues and other:
Revenues	$ 5,150	$ 6,387	$ 11,153		$ 12,281
[1]	(1)

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid In Capital	Accumulated Earnings
Beginning of period at Dec. 31, 2017	$ 2,339,046
Net income (loss)	70,939
Net transfers to parent	(408,093)
Ending of period at Mar. 31, 2018	2,001,892
Beginning of period at Dec. 31, 2017	2,339,046
Net income (loss)	78,136
Ending of period at Jun. 30, 2018	1,935,171
Beginning of period at Mar. 31, 2018	2,001,892
Net income (loss)	7,197
Net transfers to parent	(73,918)
Ending of period at Jun. 30, 2018	1,935,171
Beginning of period at Dec. 31, 2018	1,262,374	$ 692	$ 1,256,730	$ 4,952
Beginning of period , shares at Dec. 31, 2018		69,197
Net income (loss)	12,726	$ 0	0	12,726
Repurchases of common stock	(34,437)	$ (25)	(34,412)	0
Repurchases of common stock, shares		(2,488)
Issuance of common stock	1,486	$ 1	1,485	0
Issuance of common stock, shares		82
Ending of period at Mar. 31, 2019	1,242,149	$ 668	1,223,803	17,678
Ending of period , shares at Mar. 31, 2019		66,791
Beginning of period at Dec. 31, 2018	1,262,374	$ 692	1,256,730	4,952
Beginning of period , shares at Dec. 31, 2018		69,197
Net income (loss)	6,050
Repurchases of common stock		$ (78,000)
Ending of period at Jun. 30, 2019	1,192,166	$ 636	1,180,528	11,002
Ending of period , shares at Jun. 30, 2019		63,621
Beginning of period at Mar. 31, 2019	1,242,149	$ 668	1,223,803	17,678
Beginning of period , shares at Mar. 31, 2019		66,791
Net income (loss)	(6,676)	$ 0	0	(6,676)
Repurchases of common stock	(43,307)	$ (32)	(43,275)
Repurchases of common stock, shares		(3,170)
Ending of period at Jun. 30, 2019	$ 1,192,166	$ 636	$ 1,180,528	$ 11,002
Ending of period , shares at Jun. 30, 2019		63,621

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019		Jun. 30, 2018
Cash flow from operating activities:
Net income	$ 6,050		$ 78,136
Adjustments to reconcile net income to net cash provided by operating activities:
Income from discontinued operations	0		(34,573)
Depreciation, depletion and amortization	44,953		50,445
Impairment of assets held for sale	18,390	[1]	0
Deferred income taxes	2,446		65,010
Total (gains) losses on derivatives, net	(2,047)		22,555
Cash settlements on derivatives	(2,169)		(25,037)
Share-based compensation expenses	7,885		66,374
Gains on sale of assets and other, net	(19,631)		(209,635)
Other	4,220		2,008
Changes in assets and liabilities:
Decrease in accounts receivable – trade, net	28,361		76,465
Decrease in other assets	10,901		33,654
Decrease in accounts payable and accrued expenses	(32,120)		(52,538)
Decrease in other liabilities	(8,438)		(15,815)
Net cash provided by operating activities	58,801		57,049
Cash flow from investing activities:
Development of oil and natural gas properties	(56,078)		(45,938)
Purchases of other property and equipment	(48,597)		(87,377)
Proceeds from sale of properties and equipment and other	95,291		369,489
Net cash (used in) provided by investing activities	(9,384)		236,174
Cash flow from financing activities:
Net transfers to Parent			(456,925)
Repurchases of shares	(77,744)		0
Proceeds from borrowings	115,225		0
Repayments of debt	(26,949)		0
Debt issuance costs paid	(3,040)		0
Distributions to unitholders			(12,174)
Other			(294)
Net cash provided by (used in) financing activities	7,492		(469,393)
Net increase (decrease) in cash, cash equivalents and restricted cash	56,909		(176,170)
Cash, cash equivalents and restricted cash:
Beginning	49,777		520,922
Ending	$ 106,686		$ 344,752
[1]	(1)

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	Note 1 – Basis of Presentation Unless otherwise indicated or the context otherwise requires, references herein to the “Company” refer (i) prior to the Spin-off (as defined below) to Linn Energy, Inc. (the “Parent”) and its consolidated subsidiaries, and (ii) after the Spin-off, to Riviera Resources, Inc. (“Riviera”) and its consolidated subsidiaries. Unless otherwise indicated or the context otherwise requires, references herein to “LINN Energy” refer to Linn Energy, Inc. and its consolidated subsidiaries. In April 2018, the Parent announced its intention to separate Riviera from LINN Energy. To effect the separation, the Parent and certain of its then direct and indirect subsidiaries undertook an internal reorganization (including the conversion of Riviera Resources, LLC from a limited liability company to a corporation named Riviera Resources, Inc.), following which Riviera holds, directly or through its subsidiaries, substantially all of the assets of LINN Energy, other than LINN Energy’s 50% equity interest in Roan Resources LLC (“Roan”). A subsidiary of the Company held the equity interest in Roan until the Parent’s internal reorganization on July 25, 2018 (the “Reorganization Date”). Following the internal reorganization, the Parent distributed all of the outstanding shares of Riviera common stock to the Parent’s shareholders on a pro rata basis (the “Spin-off”). The Spin-off was completed on August 7, 2018. Following the Spin-off, Riviera is an independent oil and natural gas company with a strategic focus on efficiently operating its mature low-decline assets, developing its growth-oriented assets, and returning capital to shareholders. Riviera is quoted for trading on the OTCQX Market under the ticker “RVRA,” and the Parent did not retain any ownership interest in the Company. Prior to the Spin-off, the accompanying condensed consolidated financial statements were prepared on a stand-alone basis and derived from LINN Energy’s consolidated financial statements and accounting records for the periods presented as the Company was historically managed as a subsidiary of LINN Energy. Nature of Business The Company’s upstream reporting segment properties are located in six operating regions in the United States (“U.S.”): the Hugoton Basin, East Texas, the Mid-Continent, Michigan/Illinois, North Louisiana and the Uinta Basin. In addition, the Company’s upstream reporting segment contributed a term overriding royalty interest in helium produced from certain oil and natural gas properties in the Hugoton Basin (the “VPP Interests”) to Mayzure, LLC (“Mayzure”), a wholly owned subsidiary of the Company. The Blue Mountain reporting segment consists of a cryogenic natural gas processing facility, a network of gathering pipelines and compressors and produced water services in the Merge/SCOOP/STACK play, each of which is owned by Blue Mountain Midstream LLC (“Blue Mountain Midstream”), a wholly owned subsidiary of the Company. During 2018, the Company divested all of its properties located in the previous Permian Basin operating region. See Note 3 for additional information. The Company divested of all of its assets in Michigan in July of 2019 and has entered into an agreement to divest of all of its assets in Illinois, which is anticipated to close in August of 2019. See Note 3 for additional information. As a result of these divestitures, the Company will no longer have a Michigan/Illinois operating region. Historically, a subsidiary of the Company also owned a 50% equity interest in Roan. The Company’s equity earnings (losses), consisting of its share of Roan’s earnings or losses, are included in the condensed consolidated financial statements through the Reorganization Date. However, on the Reorganization Date, the equity interest in Roan was distributed to the Parent and is no longer affiliated with Riviera. As such, the Company has classified the investment and equity earnings (losses) in Roan as discontinued operations on its condensed consolidated financial statements. See Note 3 for additional information. Principles of Consolidation and Reporting The information reported herein reflects all normal recurring adjustments that are, in the opinion of management, necessary for the fair presentation of the results for the interim periods. Certain information and note disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted under Securities and Exchange Commission rules and regulations; as such, this report should be read in conjunction with the financial statements and notes in the Company’s Annual Report on Form 10 ‑K for the year ended December 31, 2018. The results reported in these unaudited condensed consolidated financial statements should not necessarily be taken as indicative of results that may be expected for the entire year. The condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All significant intercompany transactions and balances have been eliminated. Prior to the Spin-off, the condensed consolidated financial statements were prepared on a carve-out basis and reflect significant assumptions and allocations. The condensed consolidated financial statements for previous periods include certain reclassifications that were made to conform to current presentation. Such reclassifications have no impact on previously reported net income (loss), stockholders’ equity, or cash flows. Investments in noncontrolled entities over which the Company exercises significant influence are accounted for under the equity method. Use of Estimates The preparation of the accompanying condensed consolidated financial statements in conformity with GAAP requires management of the Company to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amount of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenues and expenses. The estimates that are particularly significant to the financial statements include estimates of the Company’s reserves of oil, natural gas and natural gas liquids (“NGL”), future cash flows from oil and natural gas properties, depreciation, depletion and amortization, asset retirement obligations, certain revenues and operating expenses, and fair values of commodity derivatives. As fair value is a market-based measurement, it is determined based on the assumptions that market participants would use. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. Such estimates and assumptions are adjusted when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ from these estimates. Any changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. Recently Adopted Accounting Standard In February 2016, the Financial Accounting Standards Board issued an Accounting Standards Update (“ASU”) that is intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet. The Company adopted this ASU effective January 1, 2019, using the modified retrospective effective date method and applied practical expedients which, among other things, allowed the Company to carryforward its historical lease classification, for the nonrecognition of short-term leases and for the combination of lease and non-lease components, by asset class. The adoption of this ASU resulted in an increase in both assets and liabilities of approximately $1 million as of January 1, 2019, related to the Company’s leasing activities with no material impact to the statement of operations. The Company’s leases primarily include buildings, office equipment, and field equipment. The Company elected to combine lease and non-lease components for leases of office equipment and field equipment.

Revenues

Revenues	6 Months Ended
	Jun. 30, 2019
Revenue From Contract With Customer [Abstract]
Revenues	Note 2 – Revenues Disaggregation of Revenue The following tables present the Company’s disaggregated revenues by source and geographic area: Three Months Ended June 30, 2019 Natural Gas Oil NGL Oil, Natural Gas and NGL Sales Marketing Revenues Other Revenues Total (in thousands) Hugoton Basin (1) $ 15,037 $ 417 $ 7,312 $ 22,766 $ 9,460 $ 5,104 $ 37,330 East Texas 9,363 945 405 10,713 808 2 11,523 Mid-Continent 4,033 7,153 1,884 13,070 — 13 13,083 Michigan/Illinois 6,052 746 24 6,822 — 30 6,852 Uinta Basin 3,102 — — 3,102 — — 3,102 North Louisiana 9,017 961 306 10,284 482 1 10,767 Blue Mountain — — — — 42,644 — 42,644 Total $ 46,604 $ 10,222 $ 9,931 $ 66,757 $ 53,394 $ 5,150 $ 125,301 (1) Three Months Ended June 30, 2018 Natural Gas Oil NGL Oil, Natural Gas and NGL Sales Marketing Revenues Other Revenues Total (in thousands) Hugoton Basin $ 17,401 $ 238 $ 16,875 $ 34,514 $ 22,421 $ 6,303 $ 63,238 East Texas 12,661 1,091 1,013 14,765 467 3 15,235 Mid-Continent 7,622 4,880 3,307 15,809 — 25 15,834 Michigan/Illinois 7,536 799 12 8,347 — 37 8,384 Uinta Basin 2,146 1,885 1,201 5,232 — 1 5,233 North Louisiana 6,040 1,480 503 8,023 13 2 8,038 Permian Basin 256 546 (488 ) 314 — 16 330 Blue Mountain — — — — 20,066 — 20,066 Total $ 53,662 $ 10,919 $ 22,423 $ 87,004 $ 42,967 $ 6,387 $ 136,358 Six Months Ended June 30, 2019 Natural Gas Oil NGL Oil, Natural Gas and NGL Sales Marketing Revenues Other Revenues Total (in thousands) Hugoton Basin (1) $ 37,936 $ 793 $ 17,282 $ 56,011 $ 33,152 $ 11,072 $ 100,235 East Texas 20,849 1,797 1,008 23,654 1,897 4 25,555 Mid-Continent 8,769 10,120 4,322 23,211 — 24 23,235 Michigan/Illinois 13,141 1,396 34 14,571 — 50 14,621 Uinta Basin 9,543 86 5 9,634 — — 9,634 North Louisiana 13,503 1,758 760 16,021 720 3 16,744 Blue Mountain — — — — 84,972 — 84,972 Total $ 103,741 $ 15,950 $ 23,411 $ 143,102 $ 120,741 $ 11,153 $ 274,996 (1) Six Months Ended June 30, 2018 Natural Gas Oil NGL Oil, Natural Gas and NGL Sales Marketing Revenues Other Revenues Total (in thousands) Hugoton Basin $ 39,764 $ 2,970 $ 36,389 $ 79,123 $ 46,501 $ 12,134 $ 137,758 East Texas 27,437 2,431 2,319 32,187 503 8 32,698 Mid-Continent 15,555 16,747 6,361 38,663 — 39 38,702 Michigan/Illinois 14,008 1,509 23 15,540 — 66 15,606 Uinta Basin 5,526 9,255 2,559 17,340 — (1 ) 17,339 North Louisiana 12,418 3,049 67 15,534 272 3 15,809 Permian Basin 2,282 20,654 2,557 25,493 — 32 25,525 Blue Mountain — — — — 41,958 — 41,958 Total $ 116,990 $ 56,615 $ 50,275 $ 223,880 $ 89,234 $ 12,281 $ 325,395 Contract Balances Under the Company’s product sales contracts, its customers are invoiced once the Company’s performance obligations have been satisfied, at which point payment is unconditional. Accordingly, the Company’s product sales contracts do not give rise to material contract assets or contract liabilities. The Company had trade accounts receivable related to revenue from contracts with customers of approximately $69 million and $107 million as of June 30, 2019, and December 31, 2018, respectively. Performance Obligations The majority of the Company’s sales are short-term in nature with a contract term of one year or less. For those contracts, the Company utilized the practical expedient in ASC 606-10-50-14 that exempts the Company from disclosure of the transaction price allocated to remaining performance obligations if the performance obligation is part of a contract that has an original expected duration of one year or less. For the Company’s product sales that have a contract term greater than one year, the Company utilized the practical expedient in ASC 606-10-50-14(A), which states the Company is not required to disclose the transaction price allocated to remaining performance obligations if the variable consideration is allocated entirely to a wholly unsatisfied performance obligation. Under these sales contracts, each unit of product generally represents a separate performance obligation; therefore future volumes are wholly unsatisfied and disclosure of the transaction price allocated to remaining performance obligations is not required.

Divestitures and Discontinued O

Divestitures and Discontinued Operations	6 Months Ended
	Jun. 30, 2019
Discontinued Operations [Abstract]
Divestitures and Discontinued Operations	Note 3 – Divestitures and Discontinued Operations Divestitures – Through the Second Quarter of 2019 On May 31, 2019, the Company completed the sale of its interest in non-operated properties located in the Hugoton Basin in Kansas. Cash proceeds received from the sale of these properties were approximately $31 million and the Company recognized a net loss of approximately $9 million. On January 17, 2019, the Company completed the sale of its interest in properties located in the Arkoma Basin in Oklahoma (the “Arkoma Assets Sale”). Cash proceeds received from the sale of these properties were approximately $64 million (including a deposit of approximately $5 million received in 2018), and the Company recognized a net gain of approximately $28 million. The divestitures discussed above are not presented as discontinued operations because they do not represent a strategic shift that will have a major effect on the Company’s operations and financial results. The gains and losses on these divestitures are included in “losses (gains) on sale of assets and other, net” on the condensed consolidated statements of operations and were included in the Upstream reporting segment. The assets and liabilities associated with the Arkoma Assets Sale were classified as “held for sale” on the condensed consolidated balance sheet at December 31, 2018. Divestitures – Subsequent Event On May 23, 2019, the Company announced the sale of its interest in properties located in Michigan (the “Michigan Assets Sale”). The sale was completed on July 3, 2019. Cash proceeds expected from the sale of these properties are approximately $39 million. During the three months ended June 30, 2019, the Company recorded a noncash impairment charge to reduce the carrying value of these assets to fair value of approximately $18 million. On June 13, 2019, the Company signed an agreement to sell its interest in properties located in Illinois (the “Illinois Assets Sale”) for approximately $4 million. The sale is expected to close in August 2019. The assets and liabilities associated with the Michigan Assets Sale and the Illinois Assets Sale were classified as “held for sale” on the condensed consolidated balance sheet at June 30, 2019. The following table presents carrying amounts of the assets and liabilities of the Company’s properties classified as held for sale on the condensed consolidated balance sheet: June 30, 2019 December 31, 2018 (in thousands) Assets: Oil and natural gas properties $ 58,320 $ 38,083 Other property and equipment 1,606 152 Equity method investment 7,073 — Other 481 161 Less impairment (1) (18,390 ) — Total assets held for sale $ 49,090 $ 38,396 Liabilities: Asset retirement obligations $ 9,395 $ 2,700 Other 908 1,025 Total liabilities held for sale $ 10,303 $ 3,725 (1) Other assets primarily include inventories and other liabilities primarily include accounts payable. Divestitures – 2018 On April 10, 2018, the Company completed the sale of its conventional properties located in New Mexico. Cash proceeds received from the sale of these properties were approximately $15 million and the Company recognized a net gain of approximately $11 million. On April 4, 2018, the Company completed the sale of its interest in properties located in the Altamont Bluebell Field in Utah (the “Altamont Bluebell Assets Sale”). Cash proceeds received from the sale of these properties were approximately $132 million, net of costs to sell of approximately $2 million, and the Company recognized a net gain of approximately $83 million. On March 29, 2018, the Company completed the sale of its interest in conventional properties located in west Texas. Cash proceeds received from the sale of these properties were approximately $107 million, net of costs to sell of approximately $2 million, and the Company recognized a net gain of approximately $55 million. On February 28, 2018, the Company completed the sale of its Oklahoma waterflood and Texas Panhandle properties. Cash proceeds received from the sale of these properties were approximately $112 million (including a deposit of approximately $12 million received in 2017), net of costs to sell of approximately $1 million, and the Company recognized a net gain of approximately $46 million. The divestitures discussed above are not presented as discontinued operations because they do not represent a strategic shift that will have a major effect on the Company’s operations and financial results. The gains on these divestitures are included in “losses (gains) on sale of assets and other, net” on the condensed consolidated statements of operations and were included in the upstream reporting segment. Discontinued Operations As discussed in Note 1, historically, a subsidiary of the Company owned the equity interest in Roan. However, on the Reorganization Date, the equity interest in Roan was distributed to the Parent and is no longer affiliated with Riviera. On August 31, 2017, the Parent, through certain of its then subsidiaries, completed the transaction in which the Company and Citizen Energy II, LLC (“Citizen”) each contributed certain upstream assets located in Oklahoma to a newly formed company, Roan (such contribution, the “Roan Contribution”), which was focused on the accelerated development of the Merge/SCOOP/STACK play. In exchange for their respective contributions, a subsidiary of the Company and Citizen each received a 50% equity interest in Roan. The Company used the equity method of accounting for its investment in Roan. The Company’s equity earnings (losses) consisted of its share of Roan’s earnings or losses and the amortization of the difference between the Company’s investment in Roan and Roan’s underlying net assets attributable to certain assets and were classified as discontinued operations on the condensed consolidated statement of operations. The following are summarized statement of operations information for Roan. Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 (in thousands) Revenues and other $ 44,789 $ 145,873 Expenses 72,754 130,663 Other income and (expenses) (1,087 ) (2,886 ) Net (loss) income $ (29,052 ) $ 12,324 For the three months ended June 30, 2018, the Company recorded equity losses from its historical 50% interest in Roan of approximately $2 million (inclusive of an income tax benefit of approximately $8 million). For the six months ended June 30, 2018, the Company recorded equity earnings of approximately $34 million (inclusive of an income tax benefit of approximately $19 million). The equity earnings are included in “income (loss) from discontinued operations, net of income taxes” on the condensed consolidated statement of operations.

Equity

Equity	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Equity	Note 4 – Equity Share Repurchase Program On August 16, 2018, the Company’s Board of Directors authorized the repurchase of up to $100 million of the Company’s outstanding shares of common stock. During the six months ended June 30, 2019, the Company repurchased an aggregate of 5,643,131 shares of common stock at an average price of $13.78 per share for a total cost of approximately $78 million. Included in this number are private purchases of 278,587 shares of common stock purchased at a discount to market, at an average price of $13.55 for a total cost of approximately $4 million. See Note 16 for additional information. At June 30, 2019, approximately $4 million was available for share repurchases under the program. On July 18, 2019, the Company’s Board of Directors increased the share repurchase authorization to $150 million. Consequently, as of July 18, 2019, approximately $54 million was available for share repurchases under the program. Subsequent to July 18, 2019, the Company repurchased an aggregate of 2,122,478 shares of common stock. Consequently, as of August 7, 2019, approximately $32 million was available for share repurchases under the program. In accordance with the regulations of the Securities and Exchange Commission (the “SEC”) regarding issuer tender offers, the Company’s share repurchase program was suspended concurrent with the June 13, 2019, announcement of the intent to commence a tender offer as discussed below. The program may be resumed on or after July 31, 2019. Any share repurchases are subject to restrictions in the Riviera Credit Facility (as defined below). Tender Offer On June 13, 2019, the Company’s Board of Directors announced the intention to commence a tender offer to purchase $40 million of the Company’s common stock. In June 2019, upon the terms and subject to the conditions described in the Offer to Purchase dated June 18, 2019, the Company offered to repurchase an aggregate of 2,666,666 shares of common stock at a price of $15.00 per share for a total cost of approximately $40 million (excluding expenses of the tender offer). On July 19, 2019, the Company announced that it accepted 2,666,666 shares of common stock for repurchase under the terms of the Offer to Purchase. Dividends The Company is not currently paying a cash dividend; however, the Company’s Board of Directors periodically reviews the Company’s liquidity position to evaluate whether or not to pay a cash dividend. Any future payment of cash dividends would be subject to the restrictions in the Riviera Credit Facility.

Oil and Natural Gas Properties

Oil and Natural Gas Properties	6 Months Ended
	Jun. 30, 2019
Oil And Gas Exploration And Production Industries Disclosures [Abstract]
Oil and Natural Gas Properties	Note 5 – Oil and Natural Gas Properties Oil and Natural Gas Capitalized Costs Aggregate capitalized costs related to oil, natural gas and NGL production activities with applicable accumulated depletion and amortization are presented below: June 30, 2019 December 31, 2018 (in thousands) Proved properties $ 646,836 $ 709,053 Unproved properties 45,979 47,499 692,815 756,552 Less accumulated depletion and amortization (101,033 ) (93,507 ) $ 591,782 $ 663,045

Debt

Debt	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt	Note 6 – Debt The following summarizes the Company’s outstanding debt: June 30, 2019 December 31, 2018 (in thousands) Riviera Credit Facility (1) $ — $ 20,000 Blue Mountain Credit Facility (2) 33,500 4,500 Mayzure Notes (3) 79,276 — Net unamortized deferred financing fees (2,742 ) — Total debt, net 110,034 24,500 Less current portion of Mayzure Notes (10,693 ) — Total noncurrent debt, net $ 99,341 $ 24,500 (1) (2) (3) The Mayzure Notes are secured by Mayzure’s VPP interests, but n either the Company, nor any of its subsidiaries other than Mayzure, have guaranteed the Mayzure Notes. Fair Value The Company’s debt is recorded at the carrying amount on the consolidated balance sheets. The carrying amounts of the credit facilities and term loans approximate fair value because the interest rates are variable and reflective of market rates. The fair value of the Company’s Mayzure Notes (as defined below) (which was estimated using a Level 2 fair value measurement) was approximately $82 million at June 30, 2019. Riviera Credit Facility Riviera’s credit agreement provides for a senior secured reserve-based revolving loan facility (the “Riviera Credit Facility”) with $245 million in borrowing commitments at June 30, 2019. In connection with the April 2019 semi-annual redetermination and the closing of the Hugoton non-operated properties in May 2019, the maximum borrowing commitment was reduced from $385 million to $245 million. In March 2019, the Company entered into an amendment to the Riviera Credit Facility to, among other things, allow for the issuance of the Mayzure Notes (as described below). The amendment did not result in a change to the current borrowing commitment. As of June 30, 2019, there were no borrowings outstanding under the Riviera Credit Facility and there was approximately $211 million of available borrowing capacity (which includes a $34 million reduction for outstanding letters of credit). The maturity date is August 4, 2020. Redetermination of the borrowing base under the Riviera Credit Facility, based primarily on reserve reports using lender commodity price expectations at such time, occurs semi-annually, in April and October. In July 2019, in connection with the closing of the Michigan Assets Sale, the maximum borrowing commitment was reduced from $245 million to $230 million. As of July 31, 2019, there were no borrowings outstanding under the Riviera Credit Facility, and there was approximately $197 million of available borrowing capacity (which includes a $33 million reduction for outstanding letters of credit). At the Company’s election, interest on borrowings under the Riviera Credit Facility is determined by reference to either the London Interbank Offered Rate (“LIBOR”) plus an applicable margin ranging from 2.50% to 3.50% per annum or the alternate base rate (“ABR”) plus an applicable margin rang1ing from 1.50% to 2.50% per annum, depending on utilization of the borrowing base. Interest is generally payable in arrears quarterly for loans bearing interest based at the ABR and at the end of the applicable interest period for loans bearing interest at the LIBOR, or if such interest period is longer than three months, at the end of the three month intervals during such interest period. The Company is required to pay a commitment fee to the lenders under the Riviera Credit Facility, which accrues at a rate per annum of 0.50% on the average daily unused amount of the available revolving loan commitments of the lenders. The obligations under the Riviera Credit Facility are secured by mortgages covering approximately 85% of the total value of the proved reserves of the oil and natural gas properties of the Company and certain of its subsidiaries, along with liens on substantially all personal property of the Company and certain of its subsidiaries excluding Mayzure and Blue Mountain Midstream, and are guaranteed by the Company and certain of its subsidiaries, subject to customary exceptions. Under the Riviera Credit Facility, the Company is required to maintain (i) a maximum total net debt to last twelve months EBITDA ratio of 4.0 to 1.0, and (ii) a minimum adjusted current ratio of 1.0 to 1.0. The Riviera Credit Facility also contains affirmative and negative covenants, including compliance with laws (including environmental laws, ERISA and anti-corruption laws), maintenance of required insurance, delivery of quarterly and annual financial statements, oil and gas engineering reports and budgets, maintenance and operation of property (including oil and gas properties), restrictions on the incurrence of liens and indebtedness, mergers, consolidations and sales of assets, paying dividends or other distributions in respect of, or repurchasing or redeeming, the Company’s capital stock, making certain investments and transactions with affiliates. The Riviera Credit Facility contains events of default and remedies customary for credit facilities of this nature. Failure to comply with the financial and other covenants in the Riviera Credit Facility would allow the lenders, subject to customary cure rights, to require immediate payment of all amounts outstanding under the Riviera Credit Facility. Blue Mountain Credit Facility On August 10, 2018, Blue Mountain Midstream entered into a credit agreement with Royal Bank of Canada, as administrative agent, and the lenders and agents party thereto, providing for a new senior secured revolving loan facility (the “Blue Mountain Credit Facility” and together with the Riviera Credit Facility, the “Credit Facilities”), providing for an initial borrowing commitment of $200 million. Before Blue Mountain Midstream completed certain operational milestones (such completion of the operational milestones, the “Covenant Changeover Date”), a condition to any borrowing was that Blue Mountain Midstream’s consolidated total indebtedness to capitalization ratio (the “Debt/Cap Ratio”) be not greater than 0.35 to 1.00 upon giving effect to such borrowing. As such, prior to the Covenant Changeover Date, the available borrowing capacity under the Blue Mountain Credit Facility was less than the aggregate amount of the lenders’ commitments at such time. The Covenant Changeover Date occurred February 8, 2019, which increased the current borrowing availability to $200 million. Blue Mountain Midstream no longer has to comply with the Debt/Cap Ratio as a condition to drawing and may borrow up to the total amount of the lenders’ aggregate commitments. The Blue Mountain Credit Facility also provides for the ability to increase the aggregate commitments of the lenders to up to $400 million, subject to obtaining commitments for any such increase, which may result in an increase in Blue Mountain Midstream’s available borrowing capacity. As of June 30, 2019, total borrowings outstanding under the Blue Mountain Credit Facility were approximately $34 million and there was approximately $155 million of available borrowing capacity (which includes a $12 million reduction for outstanding letters of credit). The Blue Mountain Credit Facility matures on August 10, 2023. As of July 31, 2019, total borrowings outstanding under the Blue Mountain Credit Facility were approximately $42 million and there was approximately $145 million of available capacity (which includes a $13 million reduction for outstanding letters of credit). At Blue Mountain Midstream’s election, interest on borrowings under the Blue Mountain Credit Facility is determined by reference to either the LIBOR plus an applicable margin ranging from 2.00% to 3.00% per annum or the ABR plus an applicable margin ranging from 1.00% to 2.00% per annum, both depending on Blue Mountain Midstream’s consolidated total leverage ratio. Interest is generally payable in arrears on the last day of March, June, September and December for loans bearing interest based at the ABR and at the end of the applicable interest period for loans bearing interest at the LIBOR, or if such interest period is longer than three months, at the end of three month intervals during such interest period. Blue Mountain Midstream is required under the Blue Mountain Credit Facility to pay a commitment fee to the lenders, which accrues at a rate per annum of 0.375% or 0.50% (depending on Blue Mountain Midstream’s consolidated total leverage ratio) on the average daily unused amount of the available revolving loan commitments of the lenders. The Blue Mountain Credit Facility is secured by a first priority lien on substantially all the assets of Blue Mountain Midstream. Under the Blue Mountain Credit Facility, Blue Mountain Midstream is required to maintain (i) for certain periods, a ratio of consolidated total debt (subject to certain carve-outs) to the sum of (a) total debt (subject to certain carve-outs) and (b) consolidated owners’ equity interest in Blue Mountain Midstream and its potential future subsidiaries of no greater than 0.35 to 1.00, and (ii) subject to satisfaction of certain conditions and for certain periods (a) a ratio of consolidated EBITDA to consolidated interest expense no less than 2.50 to 1.00, (b) a ratio of consolidated net debt to consolidated EBITDA (the “consolidated total leverage ratio”) no greater than 4.50 to 1.00 or 5.00 to 1.00, as applicable, and (c) in case certain other kinds of indebtedness are outstanding, a ratio of consolidated net debt secured by a lien on property of Blue Mountain Midstream to consolidated EBITDA no greater than 3.00 to 1.00. The Blue Mountain Credit Facility also contains affirmative and negative covenants customary for credit facilities of this nature, including compliance with laws (including environmental laws, ERISA and anti-corruption laws), maintenance of required insurance, delivery of quarterly and annual financial statements, budgets, maintenance and operation of property, restrictions on the incurrence of liens and indebtedness, mergers, consolidations and sales of assets and transactions with affiliates. The Blue Mountain Credit Facility contains events of default and remedies customary for credit facilities of this nature. If Blue Mountain Midstream does not comply with the covenants in the Blue Mountain Credit Facility, the lenders may, subject to customary cure rights, require immediate payment of all amounts outstanding under the Blue Mountain Credit Facility. Mayzure Notes In March 2019, Riviera contributed the VPP Interests to Mayzure. On March 20, 2019, Mayzure issued 5.16% senior secured notes in the amount of approximately $82 million, due September 20, 2028 (the “Mayzure Notes”), which are secured by the VPP interests. Neither Riviera Resources, Inc., nor any of its subsidiaries other than Mayzure, have guaranteed the Mayzure Notes. In consideration for the distribution of the VPP Interests, Mayzure contributed the net proceeds from the issuance of the Mayzure Notes to Riviera. Financing fees and expenses of approximately $3 million incurred in connection with the Mayzure Notes will be amortized over the life of the Mayzure Notes. Such amortized expenses are recorded in “interest expense, net of amounts capitalized” on the condensed consolidated statement of operations. Principal and interest under the Mayzure Notes are payable on a monthly basis commencing April 20, 2019, as a volumetric production payment from the VPP Interests. As of June 30, 2019, the Company made repayments of approximately $3 million.

Derivatives

Derivatives	6 Months Ended
	Jun. 30, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivatives	Note 7 – Derivatives Commodity Derivatives The Company hedges a portion of its forecasted production to reduce exposure to fluctuations in oil and natural gas prices and provide long-term cash flow predictability to manage its business. The Company also hedges its exposure to natural gas differentials in certain operating areas. In addition, the Company hedges purchase costs and margins of its Blue Mountain Midstream business. The Company enters into commodity hedging transactions primarily in the form of fixed price swap contracts that are designed to provide a fixed price, collars, basis swaps, margin spreads and, from time to time, put options that are designed to provide a fixed price floor with the opportunity for upside. The Company enters into these transactions with respect to a portion of its projected production to provide an economic hedge of the risk related to the future commodity prices received or paid. The Company does not enter into derivative contracts for trading purposes. The Company did not designate any of its contracts as cash flow hedges; therefore, the changes in fair value of these instruments are recorded in current earnings. See Note 8 for fair value disclosures about commodity derivatives. The following table presents derivative positions for the periods indicated as of June 30, 2019: 2019 2020 Natural gas positions: Fixed price swaps (NYMEX Henry Hub): Hedged volume (MMMBtu) 28,704 10,980 Average price ($/MMBtu) $ 2.88 $ 2.82 Collars (NYMEX Henry Hub): Hedged volume (MMMBtu) 3,680 — Average floor price ($/MMBtu) $ 2.75 $ — Average ceiling price ($/MMBtu) $ 3.00 $ — Oil positions: Fixed price swaps (NYMEX WTI): Hedged volume (MBbls) 202 183 Average price ($/Bbl) $ 64.52 $ 64.63 Natural gas basis differential positions: (1) PEPL basis swaps: Hedged volume (MMMBtu) 12,880 7,320 Hedge differential $ (0.64 ) $ (0.45 ) MichCon basis swaps: (2) Hedged volume (MMMBtu) 3,680 3,660 Hedge differential ($/MMBtu) $ (0.19 ) $ (0.19 ) NWPL basis swaps: Hedged volume (MMMBtu) 1,840 — Hedge differential ($/MMBtu) $ (0.61 ) $ — Enable basis swaps: Hedged volume (MMMBtu) 765 — Hedge differential ($/MMBtu) $ (0.23 ) $ — Southern Star basis swaps: Hedged volume (MMMBtu) 765 — Hedge differential ($/MMBtu) $ (0.57 ) $ — NGL Positions: Fixed price swap (Mont Belvieu ethane): Hedged volume (gallons in thousands) 23,184 — Average price ($/gallon) $ 0.34 $ — Fixed price swap (Mont Belvieu propane): Hedged volume (gallons in thousands) 7,728 — Average price ($/gallon) $ 0.68 $ — Margin spread (Mont Belvieu propane and Conway propane): Hedged volume (gallons in thousands) 11,592 — Average price ($/gallon) $ (0.07 ) $ — Margin spread (Mont Belvieu natural gas and Conway natural gas): Hedged volume (gallons in thousands) 11,592 — Average price ($/gallon) $ (0.09 ) $ — (1) (2) During the six months ended June 30, 2019, the Company entered into commodity derivative contracts consisting of natural gas fixed price swaps and NGL fixed price swaps for 2019 and natural gas basis swaps for 2020. During the six months ended June 30, 2018, the Company entered into commodity derivative contracts consisting of natural gas basis swaps for March 2018 through December 201 9 , natural gas fixed price swaps for January 2019 through December 2019 and oil fixed price swaps for January 2019 through December 2019 . In addition, in April 2018, in connection with the closing of the Altamont Bluebell Assets Sale, the Company canceled its oil collars for 2018 and 2019, and paid net cash settlements of approximately $ 20 million for the cancellations. The natural gas derivatives are settled based on the closing price of NYMEX Henry Hub natural gas on the last trading day for the delivery month, which occurs on the third business day preceding the delivery month, or the relevant index prices of natural gas published in Inside FERC’s Gas Market Report on the first business day of the delivery month. The oil derivatives are settled based on the average closing price of NYMEX WTI crude oil for each day of the delivery month. The NGL derivatives are settled based on the average effective price of natural gas liquids for each day of the delivery month, published in the issue of Oil Price Information Service. Balance Sheet Presentation The Company’s commodity derivatives are presented on a net basis in “derivative instruments” on the consolidated balance sheets. See Note 8 for fair value disclosures about commodity derivatives. The following table summarizes the fair value of derivatives outstanding on a gross basis: June 30, 2019 December 31, 2018 (in thousands) Assets: Commodity derivatives $ 24,767 $ 21,851 Liabilities: Commodity derivatives $ 9,909 $ 11,209 By using derivative instruments to economically hedge exposures to changes in commodity prices, the Company exposes itself to credit risk and market risk. Credit risk is the failure of the counterparty to perform under the terms of the derivative contract. When the fair value of a derivative contract is positive, the counterparty owes the Company, which creates credit risk. The Company’s counterparties are participants in the Credit Facilities. The Credit Facilities are secured by certain of the Company’s and its subsidiaries’ oil, natural gas and NGL reserves and personal property; therefore, the Company is not required to post any collateral. The Company does not receive collateral from its counterparties. The maximum amount of loss due to credit risk that the Company would incur if its counterparties failed completely to perform according to the terms of the contracts, based on the gross fair value of financial instruments, was approximately $25 million at June 30, 2019. The Company minimizes the credit risk in derivative instruments by: (i) limiting its exposure to any single counterparty; (ii) entering into derivative instruments only with counterparties that meet the Company’s minimum credit quality standard, or have a guarantee from an affiliate that meets the Company’s minimum credit quality standard; and (iii) monitoring the creditworthiness of the Company’s counterparties on an ongoing basis. In accordance with the Company’s standard practice, its commodity derivatives are subject to counterparty netting under agreements governing such derivatives and therefore the risk of loss due to counterparty nonperformance is somewhat mitigated. Gains and Losses on Derivatives A summary of gains and losses on derivatives included on the condensed consolidated statements of operations is presented below: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Gains (losses) on commodity derivatives $ 20,249 $ (7,525 ) $ 7,008 $ (22,555 ) Marketing expenses (2,781 ) — (4,961 ) — Gains (losses) on commodity derivatives $ 17,468 $ (7,525 ) $ 2,047 $ (22,555 ) The Company received net cash settlements of approximately $3 million for the three months ended June 30, 2019, and paid net cash settlements of approximately $2 million for the six months ended June 30, 2019. The Company paid net cash settlements of approximately $21 million and $25 million for the three months and six months ended June 30, 2018, respectively.

Fair Value Measurements on a Re

Fair Value Measurements on a Recurring Basis	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements on a Recurring Basis	Note 8 – Fair Value Measurements on a Recurring Basis The Company accounts for its commodity derivatives at fair value (see Note 7 for additional information) on a recurring basis. The Company determines the fair value of its commodity derivatives utilizing pricing models that use a variety of techniques, including market quotes and pricing analysis. Inputs to the pricing models include publicly available prices and forward price curves generated from a compilation of data gathered from third parties. Company management validates the data provided by third parties by understanding the pricing models used, obtaining market values from other pricing sources, analyzing pricing data in certain situations and confirming that those instruments trade in active markets. Assumed credit risk adjustments, based on published credit ratings and public bond yield spreads, are applied to the Company’s commodity derivatives. Fair Value Hierarchy In accordance with applicable accounting standards, the Company has categorized its financial instruments into a three-level fair value hierarchy based on the priority of inputs to the valuation technique. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The following presents the fair value hierarchy for assets and liabilities measured at fair value on a recurring basis: June 30, 2019 Level 2 Netting (1) Total (in thousands) Assets: Commodity derivatives $ 24,767 $ (4,272 ) $ 20,495 Liabilities: Commodity derivatives $ 9,909 $ (4,272 ) $ 5,637 December 31, 2018 Level 2 Netting (1) Total (in thousands) Assets: Commodity derivatives $ 21,851 $ (6,490 ) $ 15,361 Liabilities: Commodity derivatives $ 11,209 $ (6,490 ) $ 4,719 (1)

Asset Retirement Obligations

Asset Retirement Obligations	6 Months Ended
	Jun. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligations	Note 9 – Asset Retirement Obligations The Company has the obligation to plug and abandon oil and natural gas wells and related equipment at the end of production operations. Estimated asset retirement costs are recognized as liabilities with an increase to the carrying amounts of the related long-lived assets when the obligation is incurred. The liabilities are included in “other accrued liabilities” and “asset retirement obligations” on the condensed consolidated balance sheets. Accretion expense is included in “depreciation, depletion and amortization” on the condensed consolidated statements of operations. The fair value of additions to the asset retirement obligations is estimated using valuation techniques that convert future cash flows to a single discounted amount. Significant inputs to the valuation include estimates of: (i) plug and abandon costs per well based on existing regulatory requirements; (ii) remaining life per well; (iii) future inflation factors; and (iv) a credit-adjusted risk-free interest rate. These inputs require significant judgments and estimates by the Company’s management at the time of the valuation and are the most sensitive and subject to change. In addition, there is insufficient information to reasonably determine the timing and/or method of settlement for purposes of estimating the fair value of the asset retirement obligation of Blue Mountain Midstream’s assets. In such cases, asset retirement obligation cost is considered indeterminate because there is no data or information that can be derived from past practice, industry practice, management’s experience, or the asset’s estimated economic life. Indeterminate asset retirement obligation costs associated with Blue Mountain Midstream will be recognized in the period in which sufficient information exists to reasonably estimate potential settlement dates and methods. The following table presents a reconciliation of the Company’s asset retirement obligations (in thousands): Asset retirement obligations at December 31, 2018 $ 105,259 Liabilities added from drilling 195 Liabilities associated with assets divested (14,921 ) Current year accretion expense 3,079 Settlements (805 ) Asset retirement obligations at June 30, 2019 $ 92,807

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 10 – Commitments and Contingencies On May 11, 2016, Linn Energy, LLC, certain of its direct and indirect subsidiaries, and LinnCo, LLC (collectively, the “LINN Debtors”) and Berry Petroleum Company, LLC (“Berry” and collectively with the LINN Debtors, the “Debtors”) filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of Texas (the “Bankruptcy Court”). The Debtors’ Chapter 11 cases were administered jointly under the caption In re Linn Energy, LLC, et al., Case No. 16‑60040. On January 27, 2017, the Bankruptcy Court entered an order approving and confirming the plan (the “Plan”) of reorganization of the Debtors (the “Confirmation Order”). Consummation of the Plan was subject to certain conditions set forth in the Plan. On February 28, 2017, all of the conditions were satisfied or waived and the Plan became effective and was implemented in accordance with its terms. On September 27, 2018, the Bankruptcy Court closed the LINN Debtors’ Chapter 11 cases, but retained jurisdiction as provided in the Confirmation Order, including to potentially reopen the Chapter 11 cases if certain matters currently on appeal in the U.S. Court of Appeals for the Fifth Circuit (the “Fifth Circuit”) are overturned, including the Default Interest Appeal (as defined below). The commencement of the Chapter 11 proceedings automatically stayed certain actions against the Company, including actions to collect prepetition liabilities or to exercise control over the property of the Company’s bankruptcy estates. However, the Company is, and will continue to be until the final resolution of all claims, subject to certain contested matters and adversary proceedings stemming from the Chapter 11 proceedings, which are not affected by the closure of the LINN Debtors’ Chapter 11 cases. On March 17, 2017, Wells Fargo Bank, National Association (“Wells Fargo”), the administrative agent under Linn Energy, Inc.’s credit facility, filed a motion in the Bankruptcy Court seeking payment of post-petition default interest of approximately $31 million. The Company has vigorously disputed that Wells Fargo is entitled to any default interest based on the plain language of the Plan and Confirmation Order. On November 13, 2017, the Bankruptcy Court ruled that the secured lenders are not entitled to payment of post-petition default interest. That ruling was appealed by Wells Fargo and on March 29, 2018, the U.S. District Court for the Southern District of Texas (the “District Court”) affirmed the Bankruptcy Court’s ruling. On April 30, 2018, the Bankruptcy Court approved the substitution of UMB Bank, National Association (“UMB Bank”) as successor to Wells Fargo as administrative agent under Linn Energy, Inc.’s credit facility. UMB Bank then immediately filed a notice of appeal to the Fifth Circuit from the decision by the District Court to affirm the decision of the Bankruptcy Court (the “Default Interest Appeal”). The Fifth Circuit heard oral arguments on February 6, 2019, and, on June 12, 2019, affirmed the rulings of the Bankruptcy Court and District Court that UMB Bank, as the successor to Wells Fargo, was not entitled to post-petition default interest. On July 12, 2019, UMB Bank filed a petition for rehearing and rehearing en banc with the Fifth Circuit, but these petitions were denied by the Fifth Circuit on August 5, 2019. The Company has no indication of whether UMB Bank will file an additional appeal with the Supreme Court of the United States. The Company is not currently a party to any litigation or pending claims that it believes would have a material adverse effect on its overall business, financial position, results of operations or liquidity; however, cash flow could be significantly impacted in the reporting periods in which such matters are resolved. Except for in connection with its Chapter 11 proceedings, the Company made no significant payments to settle any legal, environmental or tax proceedings during the six months ended June 30, 2019, or June 30, 2018. The Company regularly analyzes current information and accrues for probable liabilities on the disposition of certain matters as necessary. Liabilities for loss contingencies arising from claims, assessments, litigation or other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated.

Operating Leases

Operating Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Operating Leases	Note 11 – Operating Leases Lessee The Company leases office space and other property and equipment under lease agreements expiring on various dates through 2022. During the three months and six months ended June 30, 2019, the Company recorded lease expenses of approximately $1 million and $2 million, respectively. As of June 30, 2019, the right of use lease liability was approximately $3 million using a discount rate of approximately 5.0% based on the incremental borrowing rate under the Riviera Credit Facility (as defined in Note 6) and a weighted average remaining term of approximately one year. As of June 30, 2019, future minimum lease payments were as follows (in thousands): 2019 $ 2,647 2020 2,145 2021 252 2022 4 2023 — Thereafter — $ 5,048 Lessor The Company leases a building located in Oklahoma to Roan and to a third party under lease agreements expiring on 2023 and 2024, with the option to extend the lease. In June 2019, the third party lease agreement was extended to 2024. We determine if an arrangement is a lease at inception. None of our leases allow the lessee to purchase the leased asset. Lease income for both the three months and six months ended June 30, 2019, totaled approximately $1 million not including amounts of variable lease payments that is excluded from the table below as the amounts cannot be reasonably estimated for future periods. As of June 30, 2019, future minimum lease revenues were as follows (in thousands): 2019 $ 1,006 2020 2,058 2021 2,058 2022 2,058 2023 525 Thereafter 127 $ 7,832

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Jun. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	Note 12 – Share-Based Compensation Riviera Omnibus Incentive Plan In August 2018, the Company implemented the Riviera Resources, Inc. 2018 Omnibus Incentive Plan (the “Riviera Omnibus Incentive Plan”) pursuant to which employees, consultants and non-employee directors of the Company and its affiliates are eligible to receive stock options, restricted stock, dividend equivalents, performance awards, other stock-based awards and other cash-based awards. Pursuant to the Spin-off, on August 7, 2018, certain employees of the Company received 520,837 restricted stock units of the Company (“Riviera Legacy RSUs”). Such Riviera Legacy RSUs were originally granted as LINN RSUs pursuant to the Linn Energy, Inc. 2017 Omnibus Plan, and in connection with the Spin-off, the holders of such LINN RSUs were issued one Riviera RSU in respect of each such outstanding LINN RSU. As of June 30, 2019, 2,577,268 shares were issuable under the Riviera Omnibus Incentive Plan pursuant to outstanding Riviera RSUs, including (i) 227,910 Riviera Legacy RSUs, (ii) 487,992 restricted stock units of the Company granted to certain employees of the Company (the “Restricted Shares” and together with Riviera Legacy RSUs, the “Riviera RSUs”), (iii) 1,861,366 restricted stock units of the Company granted as performance units to certain employees of the Company (the “Riviera Performance Shares”) that, in the case of the Performance Shares, vest, if at all, based on the achievement of certain performance conditions specified in the award agreements. The Committee (as defined in the Riviera Omnibus Incentive Plan) has broad authority under the Riviera Omnibus Incentive Plan to, among other things: (i) select participants; (ii) determine the types of awards that participants receive and the number of shares that are subject to such awards; and (iii) establish the terms and conditions of awards, including the price (if any) to be paid for the shares or the award. As of June 30, 2019, up to 1,296,637 shares of common stock were available for issuance under the Riviera Omnibus Incentive Plan within the share reserve established under the Riviera Omnibus Incentive Plan, 20,067 of which the Committee has designated for issuance as Restricted Shares and 76,542 of which the Committee has designated for issuance as Performance Shares. If any stock option or other stock-based award granted under the Riviera Omnibus Incentive Plan expires, terminates or is canceled for any reason without having been exercised in full, the number of shares of common stock underlying any unexercised award shall again be available for the purpose of awards under the Riviera Omnibus Incentive Plan. If any shares of restricted stock, performance awards or other stock-based awards denominated in shares of common stock awarded under the Riviera Omnibus Incentive Plan are forfeited for any reason, the number of forfeited shares shall again be available for purposes of awards under the Riviera Omnibus Incentive Plan. Any award under the Riviera Omnibus Incentive Plan settled in cash shall not be counted against the maximum share limitation. As is customary in incentive plans of this nature, each share limit and the number and kind of shares available under the Riviera Omnibus Incentive Plan and any outstanding awards, as well as the exercise or purchase prices of awards, and performance targets under certain types of performance-based awards, are subject to adjustment in the event of certain reorganizations, mergers, combinations, recapitalizations, stock splits, stock dividends or other similar events that change the number or kind of shares outstanding, and extraordinary dividends or distributions of property to the Company’s shareholders. Blue Mountain Midstream Omnibus Incentive Plan Blue Mountain Midstream is governed by its Second Amended and Restated Limited Liability Operating Agreement (as amended, the “BMM LLC Agreement”), which provides for two classes of membership units: Class A Units, of which 100% are held by Linn Holdco II (a wholly owned subsidiary of Riviera) and Class B Units. Pursuant to the BMM LLC Agreement, Blue Mountain Midstream has the authority to issue an unlimited number of Class A Units and up to 58,750 Class B Units. As of June 30, 2019, Blue Mountain Midstream has issued 701,350 Class A Units and no Class B Units. In July 2018, Blue Mountain Midstream adopted the Blue Mountain Midstream LLC 2018 Omnibus Incentive Plan (as amended, the “BMM Incentive Plan”) pursuant to which employees and consultants of Blue Mountain Midstream and its affiliates are eligible to receive unit options, restricted units, dividend equivalents, performance awards, other unit-based awards and other cash-based awards. The Committee (as defined in the BMM Incentive Plan) has broad authority under the BMM Incentive Plan to, among other things: (i) select participants; (ii) determine the types of awards that participants receive and the number of units that are subject to such awards; and (iii) establish the terms and conditions of awards, including the price (if any) to be paid for the units or the award. The aggregate number of units available for issuance under the BMM Incentive Plan matches the maximum number of Class B Units issuable by Blue Mountain Midstream. As of June 30, 2019, under the BMM Incentive Plan, Blue Mountain Midstream had granted awards that could result in the issuance of 56,717 Class B Units or an equivalent value in cash, at the Board’s discretion. The issued awards include 11,339 restricted security units (“BMM RSUs”) and 22,689 performance stock units (“BMM PSUs”) (45,378 at 200% of target). The BMM RSUs can be paid, at the Board’s discretion, in cash or an equivalent number of Class B Units. Payment for the BMM PSUs only occurs upon the achievement by Blue Mountain Midstream of a certain equity value (subject to certain adjustments) specified in the award agreements. If such equity value is achieved, the recipient of the BMM PSU will receive a number of Class B Units (or an equivalent value in cash, at the Board’s discretion) equal to 50% to 200% of the target number of BMM PSUs held by such individual, as specified in the award agreements. If any unit option or other unit-based award granted under the BMM Incentive Plan expires, terminates or is canceled for any reason without having been exercised in full, the number of units underlying any unexercised award shall again be available for the purpose of awards under the BMM Incentive Plan. If any restricted units, performance awards or other unit-based awards denominated in units awarded under the BMM Incentive Plan are forfeited for any reason, the number of forfeited units shall again be available for purposes of awards under the BMM Incentive Plan. Any award under the BMM Incentive Plan settled in cash shall not be counted against the maximum unit limitation. As is customary in incentive plans of this nature, each unit limit and the number and kind of units available under the BMM Incentive Plan and any outstanding awards, as well as the exercise or purchase prices of awards, and performance targets under certain types of performance-based awards, are subject to adjustment in the event of certain reorganizations, mergers, combinations, recapitalizations, unit dividends or other similar events that change the number or kind of units outstanding, and extraordinary dividends or distributions of property to Blue Mountain Midstream’s unitholders. Accounting for Share-Based Compensation The condensed consolidated financial statements include 100% of the Parent’s employee-related expenses, as its personnel were employed by Riviera Operating, LLC, formerly known as Linn Operating, LLC (“Riviera Operating”), a subsidiary of the Parent that became a subsidiary of Riviera in connection with the Spin-off. Compensation cost related to the grant of share-based awards has been recorded at the subsidiary level with a corresponding credit to liability or equity, representing the Parent’s capital contribution. As a result of the Company’s history of cash settling awards, all unvested share-based compensation awards are liability classified at June 30, 2019. The Company has recognized a liability of approximately $10 million and $4 million at June 30, 2019, and December 31, 2018, respectively, related to unvested share based compensation awards included in “other accrued liabilities” and “other noncurrent liabilities” on the condensed consolidated balance sheets. All cash settlements of liability classified awards are classified as operating activities on the statement of cash flows. A summary of share-based compensation expenses included on the condensed consolidated statements of operations is presented below: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Marketing expenses $ 55 $ — $ 162 $ — General and administrative expenses 3,625 58,188 9,825 75,225 Total share-based compensation expenses $ 3,680 $ 58,188 $ 9,987 $ 75,225 Income tax benefit $ 639 $ 4,315 $ 1,684 $ 6,732 Riviera Restricted Stock Units During the six months ended June 30, 2019, upon vesting of Riviera RSUs and at the election of participants, the Company repurchased 136,632 Riviera RSUs for a total cost of approximately $2 million. In addition, 81,923 shares of common stock were issued to participants (net of statutory tax withholdings) upon vesting of Riviera RSUs. Blue Mountain Midstream Restricted Security Units During the six months ended June 30, 2019, Blue Mountain Midstream granted 11,339 BMM RSUs with a fair value of approximately $12 million as of June 30, 2019, that vest ratably in three tranches over approximately two years with the first vesting occurring on April 2, 2019 . Performance Shares In December 2018, the Company granted 1,899,156 Performance Shares (the maximum number of shares available to be earned) to certain members of management. The vesting of these awards is determined based on the Company’s equity value (subject to adjustment for distributions to shareholders and certain other items) at a specified time. As of June 30, 2019, the aggregate fair value of Riviera Performance Shares was approximately $ 2 million. To date, no performance targets have been met. The cost is expected to be recognized over the life of the award . During the six months ended June 30, 2019, Blue Mountain Midstream granted 22,689 BMM PSUs (45,378 at 200% of target) (the maximum number of awards available to be earned) with a fair value of approximately $6 million as of June 30, 2019. The vesting of these awards is determined based on Blue Mountain Midstream’s equity value (subject to certain adjustments) at a specified time. To date, no performance targets have been met. The cost is expected to be recognized over the life of the award.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Note 13 – Earnings Per Share On August 7, 2018, the Parent distributed 76,190,908 shares of Riviera common stock to LINN Energy shareholders. The Parent did not retain any ownership in Riviera. Each shareholder of the Parent received one share of Riviera common stock for each share of LINN Class A common stock held by such shareholder of the Parent at the close of business on August 7, 2018, the record date. Basic earnings per share is computed by dividing net income by the weighted average number of shares outstanding during the period. Diluted earnings per share is computed by adjusting the average number of shares outstanding for the dilutive effect, if any, of potential common shares. Basic and diluted earnings per share and the average number of shares outstanding were retrospectively restated for the number of shares of Riviera common stock outstanding immediately following the Spin-off and the same number of shares was used to calculate basic and diluted earnings per share in 2018 since there were no Riviera equity awards outstanding prior to the Spin-off. The following tables provide a reconciliation of the numerators and denominators of the basic and diluted per share computations for net income: Three Months Ended June 30, 2019 2018 (in thousands, except per share amounts) (Loss) income from continuing operations $ (6,676 ) $ 8,955 Income (loss) from discontinued operations, net of income taxes — (1,758 ) Net (loss) income $ (6,676 ) $ 7,197 Income (loss) per share: (Loss) income from continuing operations per share ‒ Basic $ (0.10 ) $ 0.11 (Loss) income from continuing operations per share ‒ Diluted $ (0.10 ) $ 0.11 Income (loss) from discontinued operations per share ‒ Basic $ — $ (0.02 ) Income (loss) from discontinued operations per share ‒ Diluted $ — $ (0.02 ) Net (loss) income per share ‒ Basic $ (0.10 ) $ 0.09 Net (loss) income per share ‒ Diluted $ (0.10 ) $ 0.09 Weighted average shares outstanding ‒ Basic 65,005 76,191 Dilutive effect of unit equivalents 84 — Weighted average shares outstanding ‒ Diluted 65,089 76,191 Six Months Ended June 30, 2019 2018 (in thousands, except per share amounts) Income from continuing operations $ 6,050 $ 43,563 Income from discontinued operations, net of income taxes — 34,573 Net income $ 6,050 $ 78,136 Income per share: Income from continuing operations per share ‒ Basic $ 0.09 $ 0.58 Income from continuing operations per share ‒ Diluted $ 0.09 $ 0.58 Income from discontinued operations per share ‒ Basic $ — $ 0.45 Income from discontinued operations per share ‒ Diluted $ — $ 0.45 Net income per share ‒ Basic $ 0.09 $ 1.03 Net income per share ‒ Diluted $ 0.09 $ 1.03 Weighted average shares outstanding ‒ Basic 66,900 76,191 Dilutive effect of unit equivalents 179 — Weighted average shares outstanding ‒ Diluted 67,079 76,191 The diluted earnings per share calculation excludes the Riviera Performance Shares for the three months and six months ended June 30, 2019, because no performance targets have been met. No restricted stock units were anti-dilutive for the three months and six months ended June 30, 2018.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Note 14 – Income Taxes For periods prior to the Spin-off, income tax expense and deferred tax balances were calculated on a separate tax return basis although Riviera’s operations have historically been included in the tax returns filed by the Parent, of which Riviera’s business was a part. Beginning August 8, 2018, as a stand-alone entity, Riviera will file tax returns on its own behalf and its deferred taxes and effective tax rate may differ from those in the historical periods. Amounts recognized as income taxes are included in “income tax (benefit) expense,” as well as discontinued operations, on the condensed consolidated statements of operations. The effective income tax rates were approximately 23% and 29% for the three months and six months ended June 30, 2019, respectively. The effective income tax rates were approximately 60% for both the three months and six months ended June 30, 2018. For both the three months and six months ended June 30, 2019, the Company’s federal and state statutory rate net of the federal tax benefit was approximately 24%

Supplemental Disclosures to the

Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows	6 Months Ended
	Jun. 30, 2019
Supplemental Disclosures To The Condensed Consolidated Statements Of Cash Flows [Abstract]
Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows	Note 15 – Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows “Other current assets” reported on the condensed consolidated balance sheets include the following: June 30, 2019 December 31, 2018 (in thousands) Prepaids $ 10,573 $ 13,493 Receivable from related party — 8,300 Inventories 3,383 3,720 Other 682 1,208 Other current assets $ 14,638 $ 26,721 “Other accrued liabilities” reported on the condensed consolidated balance sheets include the following: June 30, 2019 December 31, 2018 (in thousands) Accrued compensation $ 9,769 $ 16,820 Asset retirement obligations (current portion) 1,327 1,445 Deposits 9,874 10,060 Other 3,686 6,149 Other accrued liabilities $ 24,656 $ 34,474 The following table provides a reconciliation of “cash and cash equivalents” reported on the condensed consolidated balance sheets to “cash, cash equivalents and restricted cash” reported on the condensed consolidated statement of cash flows: June 30, 2019 December 31, 2018 (in thousands) Cash and cash equivalents $ 80,229 $ 18,529 Restricted cash 26,457 31,248 Cash, cash equivalents and restricted cash $ 106,686 $ 49,777 Supplemental disclosures to the condensed consolidated statements of cash flows are presented below: Six Months Ended June 30, 2019 2018 (in thousands) Cash payments for interest, net of amounts capitalized $ 1,471 $ — Cash payments for income taxes $ — $ — Cash payments for reorganization items, net $ 472 $ 2,911 Noncash investing activities: Accrued capital expenditures $ 11,140 $ 21,968 For purposes of the condensed consolidated statements of cash flows, the Company considers all highly liquid short-term investments with original maturities of three months or less to be cash equivalents. At June 30, 2019, “restricted cash” on the condensed consolidated balance sheet consisted of approximately $16 million that will be used to settle certain claims in accordance with the Plan (which is the remainder of approximately $80 million transferred to restricted cash in February 2017 to fund such items), approximately $9 million related to deposits and approximately $1 million related to the Mayzure Notes. At December 31, 2018, “restricted cash” on the condensed consolidated balance sheet consisted of approximately $21 million that will be used to settle certain claims in accordance with the Plan and approximately $10 million related to deposits.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions Disclosure	Note 16 – Related Party Transactions Private Share Repurchases During the month of May, the Company purchased at a discount to market, 278,587 shares of common stock from York Select Strategy Master Fund, L.P. at an average price of $13.55 for a total cost of approximately $4 million. On July 24, 2019, the Company purchased at a discount to market, 285,024 shares of common stock from Fir Tree Capital Opportunity Master Fund, L.P. and 39,485 shares of common stock from Fir Tree Capital Opportunity Fund (E), L.P. at an average price of $10.90 for a total cost of approximately $4 million. Roan Resources LLC On August 31, 2017, the Company completed the Roan Contribution. In exchange for their respective contributions, a subsidiary of the Company and Citizen each received a 50% equity interest in Roan. Also on such date, Roan entered into a Master Services Agreement (the “MSA”) with Riviera Operating, a subsidiary of Riviera, pursuant to which Riviera Operating provided certain operating, administrative and other services in respect of the assets contributed to Roan during a transitional period. Under the MSA, Roan reimbursed Riviera Operating for certain costs and expenses incurred by Riviera Operating in connection with providing the services, and Roan paid to Riviera Operating a service fee of $1.25 million per month, prorated for partial months. For the three months and six months ended June 30, 2018, the Company recognized service fees of approximately $1 million and $5 million, respectively, as a reduction to general and administrative expense. The MSA terminated according to its terms on April 30, 2018. On March 1, 2018, the Company commenced a lease agreement with Roan to lease office space in the Company’s building located in Oklahoma. The lease term is for five years and is recorded in “other, net” on the condensed consolidated statements of operations. On January 31, 2019, a subsidiary of the Company’s subsidiary, Blue Mountain Midstream, entered into an agreement to gather, treat or dispose of produced water from Roan. On April 1, 2019, Blue Mountain Midstream began providing services under the agreement. The original term of the agreement is until January 31, 2029. For both the three months and six months ended June 30, 2019, the Company recorded revenue from Roan of approximately $8 million included in “marketing revenues” on the condensed consolidated statements of operations. At June 30, 2019, the Company had approximately $5 million receivable from Roan, included in “accounts receivable – trade, net” on the condensed consolidated balance sheet. In addition, Blue Mountain Midstream has an agreement in place with Roan for the purchase and processing of natural gas from certain of Roan’s properties. For the three months and six months ended June 30, 2019, the Company made natural gas purchases from Roan of approximately $25 million and $59 million, respectively, included in “marketing expenses” on the condensed consolidated statements of operations. At June 30, 2019, the Company had approximately $7 million due to Roan, associated with natural gas purchases, included in “accounts payable and accrued expenses” on the condensed consolidated balance sheet. For the three months and six months ended June 30, 2018, the Company made natural gas purchases from Roan of approximately $15 million and $32 million, respectively, included in “marketing expenses” on the consolidated statements of operations. At December 31, 2018, the Company had approximately $9 million due from Roan, primarily associated with amounts due to Riviera under the agreements related to the Spin-off, included in “other current assets” and approximately $14 million due to Roan, primarily associated with joint interest billings and natural gas purchases, included in “accounts payable and accrued expenses” on the condensed consolidated balance sheet. On July 17, 2019, a subsidiary of Blue Mountain Midstream entered into a 10-year agreement with Roan to gather Roan’s oil in a nine Township area in central Oklahoma.

Segments

Segments	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segments	Note 17 – Segments At June 30, 2019, the Company had two reporting segments: Upstream and Blue Mountain. The upstream reporting segment was engaged in the exploration, development, production, and sale of oil, natural gas, and NGLs and consists of the Company’s properties in the Hugoton Basin, (including the Jayhawk natural gas processing plant, located in Kansas), East Texas, the Mid-Continent, Michigan/Illinois, North Louisiana and the Uinta Basin. The Blue Mountain reporting segment was new for the second quarter of 2018 as a result of a change in the way the chief operating decision maker (“CODM”) assesses the Company’s results of operations following the hiring of a segment manager to lead the Blue Mountain reporting segment and the commissioning of the cryogenic natural gas processing facility during the second quarter of 2018. As a result, the first quarter of 2018 segment disclosure has been recast for comparative purposes. The Blue Mountain reporting segment consists of a cryogenic natural gas processing facility, a network of gathering pipelines and compressors and produced water services in the Merge/SCOOP/STACK play. To assess the performance of the Company’s reporting segments, the CODM analyzes field level cash flow, a non-GAAP financial metric. The Company defines field level cash flow as revenues less direct operating expenses. Other indirect income (expenses) include “general and administrative expenses,” “exploration costs,” “depreciation, depletion and amortization,” “impairment of assets held for sale,” “losses (gains) on sale of assets and other, net,” “other income and (expenses)” and “reorganization items, net.” Prior period amounts are presented on a comparable basis. In addition, information regarding total assets by reporting segment is not presented because it is not reviewed by the CODM. The following tables present the Company’s financial information by reporting segment: Three Months Ended June 30, 2019 Upstream Blue Mountain Not Allocated to Segments Consolidated (in thousands) Oil, natural gas and natural gas liquids sales $ 66,757 $ — $ — $ 66,757 Marketing revenues 10,750 42,644 — 53,394 Other revenues 5,150 — — 5,150 82,657 42,644 — 125,301 Lease operating expenses 23,845 — — 23,845 Transportation expenses 18,053 — — 18,053 Marketing expenses 7,836 31,031 2,944 41,811 Taxes other than income taxes 6,146 708 (4,255 ) 2,599 Total direct operating expenses 55,880 31,739 (1,311 ) 86,308 Field level cash flow $ 26,777 $ 10,905 1,311 38,993 Gains on commodity derivatives 20,249 20,249 Other indirect income (expenses) (67,965 ) (67,965 ) Loss from continuing operations before income taxes $ (8,723 ) Three Months Ended June 30, 2018 Upstream Blue Mountain Not Allocated to Segments Consolidated (in thousands) Oil, natural gas and natural gas liquids sales $ 87,004 $ — $ — $ 87,004 Marketing revenues 22,901 20,066 — 42,967 Other revenues 6,387 — — 6,387 116,292 20,066 — 136,358 Lease operating expenses 24,088 — — 24,088 Transportation expenses 21,213 — — 21,213 Marketing expenses 20,244 20,083 — 40,327 Taxes other than income taxes 6,737 285 93 7,115 Total direct operating expenses 72,282 20,368 93 92,743 Field level cash flow $ 44,010 $ (302 ) (93 ) 43,615 Losses on commodity derivatives (7,525 ) (7,525 ) Other indirect income (expenses) (13,799 ) (13,799 ) Income from continuing operations before income taxes $ 22,291 Six Months Ended June 30, 2019 Upstream Blue Mountain Not Allocated to Segments Consolidated (in thousands) Oil, natural gas and natural gas liquids sales $ 143,102 $ — $ — $ 143,102 Marketing revenues 35,769 84,972 — 120,741 Other revenues 11,153 — — 11,153 190,024 84,972 — 274,996 Lease operating expenses 47,897 — — 47,897 Transportation expenses 37,203 — — 37,203 Marketing expenses 27,620 62,456 5,124 95,200 Taxes other than income taxes 11,669 1,383 (4,153 ) 8,899 Total direct operating expenses 124,389 63,839 971 189,199 Field level cash flow $ 65,635 $ 21,133 (971 ) 85,797 Gains on commodity derivatives 7,008 7,008 Other indirect income (expenses) (84,309 ) (84,309 ) Income from continuing operations before income taxes $ 8,496 Six Months Ended June 30, 2018 Upstream Blue Mountain Not Allocated to Segments Consolidated (in thousands) Oil, natural gas and natural gas liquids sales $ 223,880 $ — $ — $ 223,880 Marketing revenues 47,276 41,958 — 89,234 Other revenues 12,281 — — 12,281 283,437 41,958 — 325,395 Lease operating expenses 71,972 — — 71,972 Transportation expenses 40,307 — — 40,307 Marketing expenses 41,380 40,702 — 82,082 Taxes other than income taxes 14,908 477 182 15,567 Total direct operating expenses 168,567 41,179 182 209,928 Field level cash flow $ 114,870 $ 779 (182 ) 115,467 Losses on commodity derivatives (22,555 ) (22,555 ) Other indirect income (expenses) 15,526 15,526 Income from continuing operations before income taxes $ 108,438

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Principles of Consolidation and Combination	Principles of Consolidation and Reporting The information reported herein reflects all normal recurring adjustments that are, in the opinion of management, necessary for the fair presentation of the results for the interim periods. Certain information and note disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted under Securities and Exchange Commission rules and regulations; as such, this report should be read in conjunction with the financial statements and notes in the Company’s Annual Report on Form 10 ‑K for the year ended December 31, 2018. The results reported in these unaudited condensed consolidated financial statements should not necessarily be taken as indicative of results that may be expected for the entire year. The condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All significant intercompany transactions and balances have been eliminated. Prior to the Spin-off, the condensed consolidated financial statements were prepared on a carve-out basis and reflect significant assumptions and allocations. The condensed consolidated financial statements for previous periods include certain reclassifications that were made to conform to current presentation. Such reclassifications have no impact on previously reported net income (loss), stockholders’ equity, or cash flows. Investments in noncontrolled entities over which the Company exercises significant influence are accounted for under the equity method.
Use of Estimates	Use of Estimates The preparation of the accompanying condensed consolidated financial statements in conformity with GAAP requires management of the Company to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amount of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenues and expenses. The estimates that are particularly significant to the financial statements include estimates of the Company’s reserves of oil, natural gas and natural gas liquids (“NGL”), future cash flows from oil and natural gas properties, depreciation, depletion and amortization, asset retirement obligations, certain revenues and operating expenses, and fair values of commodity derivatives. As fair value is a market-based measurement, it is determined based on the assumptions that market participants would use. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. Such estimates and assumptions are adjusted when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ from these estimates. Any changes in estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.
Recently Adopted Accounting Standard	Recently Adopted Accounting Standard In February 2016, the Financial Accounting Standards Board issued an Accounting Standards Update (“ASU”) that is intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet. The Company adopted this ASU effective January 1, 2019, using the modified retrospective effective date method and applied practical expedients which, among other things, allowed the Company to carryforward its historical lease classification, for the nonrecognition of short-term leases and for the combination of lease and non-lease components, by asset class. The adoption of this ASU resulted in an increase in both assets and liabilities of approximately $1 million as of January 1, 2019, related to the Company’s leasing activities with no material impact to the statement of operations. The Company’s leases primarily include buildings, office equipment, and field equipment. The Company elected to combine lease and non-lease components for leases of office equipment and field equipment.

Revenues (Tables)

Revenues (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue From Contract With Customer [Abstract]
Schedule of Company's Disaggregated Revenues	The following tables present the Company’s disaggregated revenues by source and geographic area: Three Months Ended June 30, 2019 Natural Gas Oil NGL Oil, Natural Gas and NGL Sales Marketing Revenues Other Revenues Total (in thousands) Hugoton Basin (1) $ 15,037 $ 417 $ 7,312 $ 22,766 $ 9,460 $ 5,104 $ 37,330 East Texas 9,363 945 405 10,713 808 2 11,523 Mid-Continent 4,033 7,153 1,884 13,070 — 13 13,083 Michigan/Illinois 6,052 746 24 6,822 — 30 6,852 Uinta Basin 3,102 — — 3,102 — — 3,102 North Louisiana 9,017 961 306 10,284 482 1 10,767 Blue Mountain — — — — 42,644 — 42,644 Total $ 46,604 $ 10,222 $ 9,931 $ 66,757 $ 53,394 $ 5,150 $ 125,301 (1) Three Months Ended June 30, 2018 Natural Gas Oil NGL Oil, Natural Gas and NGL Sales Marketing Revenues Other Revenues Total (in thousands) Hugoton Basin $ 17,401 $ 238 $ 16,875 $ 34,514 $ 22,421 $ 6,303 $ 63,238 East Texas 12,661 1,091 1,013 14,765 467 3 15,235 Mid-Continent 7,622 4,880 3,307 15,809 — 25 15,834 Michigan/Illinois 7,536 799 12 8,347 — 37 8,384 Uinta Basin 2,146 1,885 1,201 5,232 — 1 5,233 North Louisiana 6,040 1,480 503 8,023 13 2 8,038 Permian Basin 256 546 (488 ) 314 — 16 330 Blue Mountain — — — — 20,066 — 20,066 Total $ 53,662 $ 10,919 $ 22,423 $ 87,004 $ 42,967 $ 6,387 $ 136,358 Six Months Ended June 30, 2019 Natural Gas Oil NGL Oil, Natural Gas and NGL Sales Marketing Revenues Other Revenues Total (in thousands) Hugoton Basin (1) $ 37,936 $ 793 $ 17,282 $ 56,011 $ 33,152 $ 11,072 $ 100,235 East Texas 20,849 1,797 1,008 23,654 1,897 4 25,555 Mid-Continent 8,769 10,120 4,322 23,211 — 24 23,235 Michigan/Illinois 13,141 1,396 34 14,571 — 50 14,621 Uinta Basin 9,543 86 5 9,634 — — 9,634 North Louisiana 13,503 1,758 760 16,021 720 3 16,744 Blue Mountain — — — — 84,972 — 84,972 Total $ 103,741 $ 15,950 $ 23,411 $ 143,102 $ 120,741 $ 11,153 $ 274,996 (1) Six Months Ended June 30, 2018 Natural Gas Oil NGL Oil, Natural Gas and NGL Sales Marketing Revenues Other Revenues Total (in thousands) Hugoton Basin $ 39,764 $ 2,970 $ 36,389 $ 79,123 $ 46,501 $ 12,134 $ 137,758 East Texas 27,437 2,431 2,319 32,187 503 8 32,698 Mid-Continent 15,555 16,747 6,361 38,663 — 39 38,702 Michigan/Illinois 14,008 1,509 23 15,540 — 66 15,606 Uinta Basin 5,526 9,255 2,559 17,340 — (1 ) 17,339 North Louisiana 12,418 3,049 67 15,534 272 3 15,809 Permian Basin 2,282 20,654 2,557 25,493 — 32 25,525 Blue Mountain — — — — 41,958 — 41,958 Total $ 116,990 $ 56,615 $ 50,275 $ 223,880 $ 89,234 $ 12,281 $ 325,395

Divestitures and Discontinued_2

Divestitures and Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2019
Discontinued Operations [Abstract]
Disclosure of Long Lived Assets Held-for-sale	The following table presents carrying amounts of the assets and liabilities of the Company’s properties classified as held for sale on the condensed consolidated balance sheet: June 30, 2019 December 31, 2018 (in thousands) Assets: Oil and natural gas properties $ 58,320 $ 38,083 Other property and equipment 1,606 152 Equity method investment 7,073 — Other 481 161 Less impairment (1) (18,390 ) — Total assets held for sale $ 49,090 $ 38,396 Liabilities: Asset retirement obligations $ 9,395 $ 2,700 Other 908 1,025 Total liabilities held for sale $ 10,303 $ 3,725 (1)
Summarized Roan Resources LLC Statements of Operations Information	The following are summarized statement of operations information for Roan. Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 (in thousands) Revenues and other $ 44,789 $ 145,873 Expenses 72,754 130,663 Other income and (expenses) (1,087 ) (2,886 ) Net (loss) income $ (29,052 ) $ 12,324

Oil and Natural Gas Properties

Oil and Natural Gas Properties (Tables)	6 Months Ended
	Jun. 30, 2019
Oil And Gas Exploration And Production Industries Disclosures [Abstract]
Schedule of Capitalized Costs Related to Oil, Natural Gas and NGL Production Activities	Aggregate capitalized costs related to oil, natural gas and NGL production activities with applicable accumulated depletion and amortization are presented below: June 30, 2019 December 31, 2018 (in thousands) Proved properties $ 646,836 $ 709,053 Unproved properties 45,979 47,499 692,815 756,552 Less accumulated depletion and amortization (101,033 ) (93,507 ) $ 591,782 $ 663,045

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Summary of Outstanding Debt	The following summarizes the Company’s outstanding debt: June 30, 2019 December 31, 2018 (in thousands) Riviera Credit Facility (1) $ — $ 20,000 Blue Mountain Credit Facility (2) 33,500 4,500 Mayzure Notes (3) 79,276 — Net unamortized deferred financing fees (2,742 ) — Total debt, net 110,034 24,500 Less current portion of Mayzure Notes (10,693 ) — Total noncurrent debt, net $ 99,341 $ 24,500 (1) (2) (3) The Mayzure Notes are secured by Mayzure’s VPP interests, but n either the Company, nor any of its subsidiaries other than Mayzure, have guaranteed the Mayzure Notes.

Derivatives (Tables)

Derivatives (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Schedule of Derivative Positions	The following table presents derivative positions for the periods indicated as of June 30, 2019: 2019 2020 Natural gas positions: Fixed price swaps (NYMEX Henry Hub): Hedged volume (MMMBtu) 28,704 10,980 Average price ($/MMBtu) $ 2.88 $ 2.82 Collars (NYMEX Henry Hub): Hedged volume (MMMBtu) 3,680 — Average floor price ($/MMBtu) $ 2.75 $ — Average ceiling price ($/MMBtu) $ 3.00 $ — Oil positions: Fixed price swaps (NYMEX WTI): Hedged volume (MBbls) 202 183 Average price ($/Bbl) $ 64.52 $ 64.63 Natural gas basis differential positions: (1) PEPL basis swaps: Hedged volume (MMMBtu) 12,880 7,320 Hedge differential $ (0.64 ) $ (0.45 ) MichCon basis swaps: (2) Hedged volume (MMMBtu) 3,680 3,660 Hedge differential ($/MMBtu) $ (0.19 ) $ (0.19 ) NWPL basis swaps: Hedged volume (MMMBtu) 1,840 — Hedge differential ($/MMBtu) $ (0.61 ) $ — Enable basis swaps: Hedged volume (MMMBtu) 765 — Hedge differential ($/MMBtu) $ (0.23 ) $ — Southern Star basis swaps: Hedged volume (MMMBtu) 765 — Hedge differential ($/MMBtu) $ (0.57 ) $ — NGL Positions: Fixed price swap (Mont Belvieu ethane): Hedged volume (gallons in thousands) 23,184 — Average price ($/gallon) $ 0.34 $ — Fixed price swap (Mont Belvieu propane): Hedged volume (gallons in thousands) 7,728 — Average price ($/gallon) $ 0.68 $ — Margin spread (Mont Belvieu propane and Conway propane): Hedged volume (gallons in thousands) 11,592 — Average price ($/gallon) $ (0.07 ) $ — Margin spread (Mont Belvieu natural gas and Conway natural gas): Hedged volume (gallons in thousands) 11,592 — Average price ($/gallon) $ (0.09 ) $ — (1) (2)
Summary of Fair Value of Derivatives Outstanding on Gross Basis	The Company’s commodity derivatives are presented on a net basis in “derivative instruments” on the consolidated balance sheets. See Note 8 for fair value disclosures about commodity derivatives. The following table summarizes the fair value of derivatives outstanding on a gross basis: June 30, 2019 December 31, 2018 (in thousands) Assets: Commodity derivatives $ 24,767 $ 21,851 Liabilities: Commodity derivatives $ 9,909 $ 11,209
Summary of Gains and Losses on Derivatives	A summary of gains and losses on derivatives included on the condensed consolidated statements of operations is presented below: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Gains (losses) on commodity derivatives $ 20,249 $ (7,525 ) $ 7,008 $ (22,555 ) Marketing expenses (2,781 ) — (4,961 ) — Gains (losses) on commodity derivatives $ 17,468 $ (7,525 ) $ 2,047 $ (22,555 )

Fair Value Measurements on a _2

Fair Value Measurements on a Recurring Basis (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Schedule of Fair Value Hierarchy for Assets and Liabilities Measured at Fair Value on Recurring Basis	The following presents the fair value hierarchy for assets and liabilities measured at fair value on a recurring basis: June 30, 2019 Level 2 Netting (1) Total (in thousands) Assets: Commodity derivatives $ 24,767 $ (4,272 ) $ 20,495 Liabilities: Commodity derivatives $ 9,909 $ (4,272 ) $ 5,637 December 31, 2018 Level 2 Netting (1) Total (in thousands) Assets: Commodity derivatives $ 21,851 $ (6,490 ) $ 15,361 Liabilities: Commodity derivatives $ 11,209 $ (6,490 ) $ 4,719 (1)

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	6 Months Ended
	Jun. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Reconciliation of Company's Asset Retirement Obligations	The following table presents a reconciliation of the Company’s asset retirement obligations (in thousands): Asset retirement obligations at December 31, 2018 $ 105,259 Liabilities added from drilling 195 Liabilities associated with assets divested (14,921 ) Current year accretion expense 3,079 Settlements (805 ) Asset retirement obligations at June 30, 2019 $ 92,807

Operating Leases (Tables)

Operating Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Schedule of Future Minimum Lease Payments	As of June 30, 2019, future minimum lease payments were as follows (in thousands): 2019 $ 2,647 2020 2,145 2021 252 2022 4 2023 — Thereafter — $ 5,048
Schedule of Future Minimum Lease Revenues	As of June 30, 2019, future minimum lease revenues were as follows (in thousands): 2019 $ 1,006 2020 2,058 2021 2,058 2022 2,058 2023 525 Thereafter 127 $ 7,832

Share-Based Compensation (Table

Share-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Share-Based Compensation Expenses	A summary of share-based compensation expenses included on the condensed consolidated statements of operations is presented below: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Marketing expenses $ 55 $ — $ 162 $ — General and administrative expenses 3,625 58,188 9,825 75,225 Total share-based compensation expenses $ 3,680 $ 58,188 $ 9,987 $ 75,225 Income tax benefit $ 639 $ 4,315 $ 1,684 $ 6,732

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Reconciliation of Numerators and Denominators of Basic and Diluted Per Share Computations for Net Income	The following tables provide a reconciliation of the numerators and denominators of the basic and diluted per share computations for net income: Three Months Ended June 30, 2019 2018 (in thousands, except per share amounts) (Loss) income from continuing operations $ (6,676 ) $ 8,955 Income (loss) from discontinued operations, net of income taxes — (1,758 ) Net (loss) income $ (6,676 ) $ 7,197 Income (loss) per share: (Loss) income from continuing operations per share ‒ Basic $ (0.10 ) $ 0.11 (Loss) income from continuing operations per share ‒ Diluted $ (0.10 ) $ 0.11 Income (loss) from discontinued operations per share ‒ Basic $ — $ (0.02 ) Income (loss) from discontinued operations per share ‒ Diluted $ — $ (0.02 ) Net (loss) income per share ‒ Basic $ (0.10 ) $ 0.09 Net (loss) income per share ‒ Diluted $ (0.10 ) $ 0.09 Weighted average shares outstanding ‒ Basic 65,005 76,191 Dilutive effect of unit equivalents 84 — Weighted average shares outstanding ‒ Diluted 65,089 76,191 Six Months Ended June 30, 2019 2018 (in thousands, except per share amounts) Income from continuing operations $ 6,050 $ 43,563 Income from discontinued operations, net of income taxes — 34,573 Net income $ 6,050 $ 78,136 Income per share: Income from continuing operations per share ‒ Basic $ 0.09 $ 0.58 Income from continuing operations per share ‒ Diluted $ 0.09 $ 0.58 Income from discontinued operations per share ‒ Basic $ — $ 0.45 Income from discontinued operations per share ‒ Diluted $ — $ 0.45 Net income per share ‒ Basic $ 0.09 $ 1.03 Net income per share ‒ Diluted $ 0.09 $ 1.03 Weighted average shares outstanding ‒ Basic 66,900 76,191 Dilutive effect of unit equivalents 179 — Weighted average shares outstanding ‒ Diluted 67,079 76,191

Supplemental Disclosures to t_2

Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows (Tables)	6 Months Ended
	Jun. 30, 2019
Supplemental Disclosures To The Condensed Consolidated Statements Of Cash Flows [Abstract]
Schedule of Other Current Assets	“Other current assets” reported on the condensed consolidated balance sheets include the following: June 30, 2019 December 31, 2018 (in thousands) Prepaids $ 10,573 $ 13,493 Receivable from related party — 8,300 Inventories 3,383 3,720 Other 682 1,208 Other current assets $ 14,638 $ 26,721
Schedule of Other Accrued Liabilities	“Other accrued liabilities” reported on the condensed consolidated balance sheets include the following: June 30, 2019 December 31, 2018 (in thousands) Accrued compensation $ 9,769 $ 16,820 Asset retirement obligations (current portion) 1,327 1,445 Deposits 9,874 10,060 Other 3,686 6,149 Other accrued liabilities $ 24,656 $ 34,474
Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash	The following table provides a reconciliation of “cash and cash equivalents” reported on the condensed consolidated balance sheets to “cash, cash equivalents and restricted cash” reported on the condensed consolidated statement of cash flows: June 30, 2019 December 31, 2018 (in thousands) Cash and cash equivalents $ 80,229 $ 18,529 Restricted cash 26,457 31,248 Cash, cash equivalents and restricted cash $ 106,686 $ 49,777
Supplemental Disclosures to the Condensed Consolidated Statements of Cash Flows	Supplemental disclosures to the condensed consolidated statements of cash flows are presented below: Six Months Ended June 30, 2019 2018 (in thousands) Cash payments for interest, net of amounts capitalized $ 1,471 $ — Cash payments for income taxes $ — $ — Cash payments for reorganization items, net $ 472 $ 2,911 Noncash investing activities: Accrued capital expenditures $ 11,140 $ 21,968

Segments (Tables)

Segments (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following tables present the Company’s financial information by reporting segment: Three Months Ended June 30, 2019 Upstream Blue Mountain Not Allocated to Segments Consolidated (in thousands) Oil, natural gas and natural gas liquids sales $ 66,757 $ — $ — $ 66,757 Marketing revenues 10,750 42,644 — 53,394 Other revenues 5,150 — — 5,150 82,657 42,644 — 125,301 Lease operating expenses 23,845 — — 23,845 Transportation expenses 18,053 — — 18,053 Marketing expenses 7,836 31,031 2,944 41,811 Taxes other than income taxes 6,146 708 (4,255 ) 2,599 Total direct operating expenses 55,880 31,739 (1,311 ) 86,308 Field level cash flow $ 26,777 $ 10,905 1,311 38,993 Gains on commodity derivatives 20,249 20,249 Other indirect income (expenses) (67,965 ) (67,965 ) Loss from continuing operations before income taxes $ (8,723 ) Three Months Ended June 30, 2018 Upstream Blue Mountain Not Allocated to Segments Consolidated (in thousands) Oil, natural gas and natural gas liquids sales $ 87,004 $ — $ — $ 87,004 Marketing revenues 22,901 20,066 — 42,967 Other revenues 6,387 — — 6,387 116,292 20,066 — 136,358 Lease operating expenses 24,088 — — 24,088 Transportation expenses 21,213 — — 21,213 Marketing expenses 20,244 20,083 — 40,327 Taxes other than income taxes 6,737 285 93 7,115 Total direct operating expenses 72,282 20,368 93 92,743 Field level cash flow $ 44,010 $ (302 ) (93 ) 43,615 Losses on commodity derivatives (7,525 ) (7,525 ) Other indirect income (expenses) (13,799 ) (13,799 ) Income from continuing operations before income taxes $ 22,291 Six Months Ended June 30, 2019 Upstream Blue Mountain Not Allocated to Segments Consolidated (in thousands) Oil, natural gas and natural gas liquids sales $ 143,102 $ — $ — $ 143,102 Marketing revenues 35,769 84,972 — 120,741 Other revenues 11,153 — — 11,153 190,024 84,972 — 274,996 Lease operating expenses 47,897 — — 47,897 Transportation expenses 37,203 — — 37,203 Marketing expenses 27,620 62,456 5,124 95,200 Taxes other than income taxes 11,669 1,383 (4,153 ) 8,899 Total direct operating expenses 124,389 63,839 971 189,199 Field level cash flow $ 65,635 $ 21,133 (971 ) 85,797 Gains on commodity derivatives 7,008 7,008 Other indirect income (expenses) (84,309 ) (84,309 ) Income from continuing operations before income taxes $ 8,496 Six Months Ended June 30, 2018 Upstream Blue Mountain Not Allocated to Segments Consolidated (in thousands) Oil, natural gas and natural gas liquids sales $ 223,880 $ — $ — $ 223,880 Marketing revenues 47,276 41,958 — 89,234 Other revenues 12,281 — — 12,281 283,437 41,958 — 325,395 Lease operating expenses 71,972 — — 71,972 Transportation expenses 40,307 — — 40,307 Marketing expenses 41,380 40,702 — 82,082 Taxes other than income taxes 14,908 477 182 15,567 Total direct operating expenses 168,567 41,179 182 209,928 Field level cash flow $ 114,870 $ 779 (182 ) 115,467 Losses on commodity derivatives (22,555 ) (22,555 ) Other indirect income (expenses) 15,526 15,526 Income from continuing operations before income taxes $ 108,438

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Details) - USD ($) $ in Millions	Aug. 07, 2018	Jan. 01, 2019	Jun. 30, 2018	Dec. 31, 2017	Aug. 31, 2017
Basis Of Presentation [Line Items]
Spin-off completion date	Aug. 7, 2018
ASU 2016-02
Basis Of Presentation [Line Items]
Impact on assets and liability after adoption		$ 1
Roan Resources LLC
Basis Of Presentation [Line Items]
Ownership percentage			50.00%	50.00%	50.00%

Revenues - Schedule of Company'

Revenues - Schedule of Company's Disaggregated Revenues (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019		Jun. 30, 2018	Jun. 30, 2019		Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 125,301		$ 136,358	$ 274,996		$ 325,395
Natural Gas
Disaggregation of Revenue [Line Items]
Revenues	46,604		53,662	103,741		116,990
Oil
Disaggregation of Revenue [Line Items]
Revenues	10,222		10,919	15,950		56,615
NGL
Disaggregation of Revenue [Line Items]
Revenues	9,931		22,423	23,411		50,275
Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues	66,757		87,004	143,102		223,880
Marketing
Disaggregation of Revenue [Line Items]
Revenues	53,394		42,967	120,741		89,234
Other Revenues
Disaggregation of Revenue [Line Items]
Revenues	5,150		6,387	11,153		12,281
Hugoton Basin
Disaggregation of Revenue [Line Items]
Revenues	37,330	[1]	63,238	100,235	[1]	137,758	[1]
Hugoton Basin | Natural Gas
Disaggregation of Revenue [Line Items]
Revenues	15,037	[1]	17,401	37,936	[1]	39,764	[1]
Hugoton Basin | Oil
Disaggregation of Revenue [Line Items]
Revenues	417	[1]	238	793	[1]	2,970	[1]
Hugoton Basin | NGL
Disaggregation of Revenue [Line Items]
Revenues	7,312	[1]	16,875	17,282	[1]	36,389	[1]
Hugoton Basin | Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues	22,766	[1]	34,514	56,011	[1]	79,123	[1]
Hugoton Basin | Marketing
Disaggregation of Revenue [Line Items]
Revenues	9,460	[1]	22,421	33,152	[1]	46,501	[1]
Hugoton Basin | Other Revenues
Disaggregation of Revenue [Line Items]
Revenues	5,104	[1]	6,303	11,072	[1]	12,134	[1]
East Texas
Disaggregation of Revenue [Line Items]
Revenues	11,523		15,235	25,555		32,698
East Texas | Natural Gas
Disaggregation of Revenue [Line Items]
Revenues	9,363		12,661	20,849		27,437
East Texas | Oil
Disaggregation of Revenue [Line Items]
Revenues	945		1,091	1,797		2,431
East Texas | NGL
Disaggregation of Revenue [Line Items]
Revenues	405		1,013	1,008		2,319
East Texas | Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues	10,713		14,765	23,654		32,187
East Texas | Marketing
Disaggregation of Revenue [Line Items]
Revenues	808		467	1,897		503
East Texas | Other Revenues
Disaggregation of Revenue [Line Items]
Revenues	2		3	4		8
Mid-Continent
Disaggregation of Revenue [Line Items]
Revenues	13,083		15,834	23,235		38,702
Mid-Continent | Natural Gas
Disaggregation of Revenue [Line Items]
Revenues	4,033		7,622	8,769		15,555
Mid-Continent | Oil
Disaggregation of Revenue [Line Items]
Revenues	7,153		4,880	10,120		16,747
Mid-Continent | NGL
Disaggregation of Revenue [Line Items]
Revenues	1,884		3,307	4,322		6,361
Mid-Continent | Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues	13,070		15,809	23,211		38,663
Mid-Continent | Marketing
Disaggregation of Revenue [Line Items]
Revenues	0		0	0		0
Mid-Continent | Other Revenues
Disaggregation of Revenue [Line Items]
Revenues	13		25	24		39
Michigan/Illinois
Disaggregation of Revenue [Line Items]
Revenues	6,852		8,384	14,621		15,606
Michigan/Illinois | Natural Gas
Disaggregation of Revenue [Line Items]
Revenues	6,052		7,536	13,141		14,008
Michigan/Illinois | Oil
Disaggregation of Revenue [Line Items]
Revenues	746		799	1,396		1,509
Michigan/Illinois | NGL
Disaggregation of Revenue [Line Items]
Revenues	24		12	34		23
Michigan/Illinois | Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues	6,822		8,347	14,571		15,540
Michigan/Illinois | Marketing
Disaggregation of Revenue [Line Items]
Revenues	0		0	0		0
Michigan/Illinois | Other Revenues
Disaggregation of Revenue [Line Items]
Revenues	30		37	50		66
Uinta Basin
Disaggregation of Revenue [Line Items]
Revenues	3,102		5,233	9,634		17,339
Uinta Basin | Natural Gas
Disaggregation of Revenue [Line Items]
Revenues	3,102		2,146	9,543		5,526
Uinta Basin | Oil
Disaggregation of Revenue [Line Items]
Revenues	0		1,885	86		9,255
Uinta Basin | NGL
Disaggregation of Revenue [Line Items]
Revenues	0		1,201	5		2,559
Uinta Basin | Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues	3,102		5,232	9,634		17,340
Uinta Basin | Marketing
Disaggregation of Revenue [Line Items]
Revenues	0		0	0		0
Uinta Basin | Other Revenues
Disaggregation of Revenue [Line Items]
Revenues	0		1	0		(1)
North Louisiana
Disaggregation of Revenue [Line Items]
Revenues	10,767		8,038	16,744		15,809
North Louisiana | Natural Gas
Disaggregation of Revenue [Line Items]
Revenues	9,017		6,040	13,503		12,418
North Louisiana | Oil
Disaggregation of Revenue [Line Items]
Revenues	961		1,480	1,758		3,049
North Louisiana | NGL
Disaggregation of Revenue [Line Items]
Revenues	306		503	760		67
North Louisiana | Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues	10,284		8,023	16,021		15,534
North Louisiana | Marketing
Disaggregation of Revenue [Line Items]
Revenues	482		13	720		272
North Louisiana | Other Revenues
Disaggregation of Revenue [Line Items]
Revenues	1		2	3		3
Permian Basin
Disaggregation of Revenue [Line Items]
Revenues			330			25,525
Permian Basin | Natural Gas
Disaggregation of Revenue [Line Items]
Revenues			256			2,282
Permian Basin | Oil
Disaggregation of Revenue [Line Items]
Revenues			546			20,654
Permian Basin | NGL
Disaggregation of Revenue [Line Items]
Revenues			(488)			2,557
Permian Basin | Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues			314			25,493
Permian Basin | Marketing
Disaggregation of Revenue [Line Items]
Revenues			0			0
Permian Basin | Other Revenues
Disaggregation of Revenue [Line Items]
Revenues			16			32
Blue Mountain
Disaggregation of Revenue [Line Items]
Revenues	42,644		20,066	84,972		41,958
Blue Mountain | Natural Gas
Disaggregation of Revenue [Line Items]
Revenues	0		0	0		0
Blue Mountain | Oil
Disaggregation of Revenue [Line Items]
Revenues	0		0	0		0
Blue Mountain | NGL
Disaggregation of Revenue [Line Items]
Revenues	0		0	0		0
Blue Mountain | Oil, Natural Gas and NGL Sales
Disaggregation of Revenue [Line Items]
Revenues	0		0	0		0
Blue Mountain | Marketing
Disaggregation of Revenue [Line Items]
Revenues	42,644		20,066	84,972		41,958
Blue Mountain | Other Revenues
Disaggregation of Revenue [Line Items]
Revenues	$ 0		$ 0	$ 0		$ 0
[1]	On May 31, 2019, the Company completed the sale of its interest in non-operated properties located in the Hugoton Basin.

Revenues - Additional Informati

Revenues - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Revenue From Contract With Customer [Abstract]
Contract with customer, trade accounts receivable	$ 69	$ 107

Divestitures and Discontinued_3

Divestitures and Discontinued Operations - Additional Information (Details) - USD ($) $ in Thousands

Jul. 03, 2019

May 31, 2019

Jan. 17, 2019

Apr. 10, 2018

Apr. 04, 2018

Mar. 29, 2018

Feb. 28, 2018

Aug. 31, 2019

Jun. 30, 2019

Jun. 30, 2018

Jun. 30, 2019

Jun. 30, 2018

Dec. 31, 2018

Dec. 31, 2017

Aug. 31, 2017

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Deposits

$ 9,874

$ 9,874

$ 10,060

Impairment of assets held for sale

18,390

$ 0

18,390

[1]

$ 0

0

[1]

Income (loss) from discontinued operations, net of income taxes

0

$ (1,758)

$ 0

$ 34,573

Roan Resources LLC

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Equity method investment, ownership percentage

50.00%

50.00%

50.00%

50.00%

Income (loss) from discontinued operations, net of income taxes

$ 2,000

$ 34,000

Income tax expense of discontinued operations

$ 8,000

$ 19,000

Hugoton Basin Assets Sale

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Proceeds from Divestiture of Businesses

$ 31,000

Gain (Loss) on Disposition of Oil and Gas Property

$ (9,000)

Arkoma Assets Sale

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Proceeds from Divestiture of Businesses

$ 64,000

Gain (Loss) on Disposition of Oil and Gas Property

$ 28,000

Deposits

$ 5,000

Michigan Assets Sale

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Impairment of assets held for sale

$ (18,000)

Michigan Assets Sale | Subsequent Event

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Expected Proceeds from Divestiture of Businesses

$ 39,000

Illinois Assets Sale | Subsequent Event

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Proceeds to be received from sale of interest in properties

$ 4,000

New Mexico Assets Sale

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Proceeds from Divestiture of Businesses

$ 15,000

Gain (Loss) on Disposition of Oil and Gas Property

$ 11,000

Altamont Bluebell Assets Sale

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Proceeds from Divestiture of Businesses

$ 132,000

Gain (Loss) on Disposition of Oil and Gas Property

83,000

Costs Associated With Sale of Oil and Gas Property and Equipment

$ 2,000

West Texas Assets Sale

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Proceeds from Divestiture of Businesses

$ 107,000

Gain (Loss) on Disposition of Oil and Gas Property

55,000

Costs Associated With Sale of Oil and Gas Property and Equipment

$ 2,000

OK Waterfloods & TXPHS

Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]

Proceeds from Divestiture of Businesses

$ 112,000

Gain (Loss) on Disposition of Oil and Gas Property

46,000

Deposits

$ 12,000

Costs Associated With Sale of Oil and Gas Property and Equipment

$ 1,000

[1]

(1)

Divestitures and Discontinued_4

Divestitures and Discontinued Operations - Disclosure of Long Lived Assets Held-for-sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended			12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019		Jun. 30, 2018	Dec. 31, 2018
ASSETS
Oil and natural gas properties	$ 58,320		$ 58,320			$ 38,083
Other property and equipment	1,606		1,606			152
Equity method investment	7,073		7,073			0
Other	481		481			161
Less impairment (1)	(18,390)	$ 0	(18,390)	[1]	$ 0	0	[1]
Assets held for sale	49,090		49,090			38,396
Liabilities:
Asset retirement obligations	9,395		9,395			2,700
Other	908		908			1,025
Total liabilities held for sale	$ 10,303		$ 10,303			$ 3,725
[1]	(1)

Divestitures and Discontinued_5

Divestitures and Discontinued Operations - Summarized Roan Resources LLC Statements of Operations Information (Details) - Roan Resources LLC - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Revenues and other	$ 44,789	$ 145,873
Expenses	72,754	130,663
Other income and (expenses)	(1,087)	(2,886)
Net (loss) income	$ (29,052)	$ 12,324

Equity - Additional Information

Equity - Additional Information (Details) - USD ($)	Jul. 19, 2019	Jun. 18, 2019	Jun. 13, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2019	Aug. 07, 2019	Jul. 18, 2019	Aug. 16, 2018
Class Of Stock [Line Items]
Stock repurchased during period, value				$ 43,307,000	$ 34,437,000
Common Stock
Class Of Stock [Line Items]
Stock repurchased during period, shares						5,643,131
Share repurchased program average price per share				$ 13.78		$ 13.78
Stock repurchased during period, value				$ 32,000	$ 25,000	$ 78,000,000
Stock repurchase program, available for share repurchase amount				$ 4,000,000		$ 4,000,000
Stock repurchased during period, shares				3,170,000	2,488,000
Common Stock | Subsequent Event
Class Of Stock [Line Items]
Stock repurchase program, authorized amount								$ 150,000,000
Stock repurchased during period, shares	2,122,478
Stock repurchase program, available for share repurchase amount							$ 32,000,000	$ 54,000,000
Common Stock | Maximum
Class Of Stock [Line Items]
Stock repurchase program, authorized amount									$ 100,000,000
Private Purchase | Common Stock
Class Of Stock [Line Items]
Stock repurchased during period, shares						278,587
Share repurchased program average price per share				$ 13.55		$ 13.55
Stock repurchased during period, value						$ 4,000,000
Tender Offer | Common Stock
Class Of Stock [Line Items]
Stock repurchased during period, value		$ 40,000,000
Stock repurchased during period, shares		2,666,666
Stock repurchased price per share		$ 15
Stock repurchase amount announced to be repurchased			$ 40,000,000
Tender Offer | Common Stock | Subsequent Event
Class Of Stock [Line Items]
Stock repurchased during period, shares	2,666,666

Oil and Natural Gas Propertie_2

Oil and Natural Gas Properties - Schedule of Capitalized Costs Related to Oil, Natural Gas and NGL Production Activities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Oil And Gas Exploration And Production Industries Disclosures [Abstract]
Proved properties	$ 646,836	$ 709,053
Unproved properties	45,979	47,499
Oil and natural gas properties (successful efforts method)	692,815	756,552
Less accumulated depletion and amortization	(101,033)	(93,507)
Oil and natural gas properties, successful efforts method, net	$ 591,782	$ 663,045

Debt - Summary of Outstanding D

Debt - Summary of Outstanding Debt (Details) - USD ($) $ in Thousands		Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Net unamortized deferred financing fees		$ (2,742)
Total debt, net		110,034	$ 24,500
Total noncurrent debt, net		99,341	24,500
Mayzure
Debt Instrument [Line Items]
Mayzure Notes	[1]	79,276
Less current portion of Mayzure Notes		(10,693)	0
Riviera Credit Facility
Debt Instrument [Line Items]
Credit facility		0	20,000	[2]
Blue Mountain Credit Facility
Debt Instrument [Line Items]
Credit facility	[3]	$ 33,500	$ 4,500
[1]	The Mayzure Notes are secured by Mayzure’s VPP interests, but n either the Company, nor any of its subsidiaries other than Mayzure, have guaranteed the Mayzure Notes.
[2]	Variable interest rate of 5.0% at December 31, 2018.
[3]	Variable interest rate of 4.4% and 4.5% at June 30, 2019, and December 31, 2018, respectively.

Debt - Summary of Outstanding_2

Debt - Summary of Outstanding Debt (Parenthetical) (Details)	Jun. 30, 2019	Dec. 31, 2018
Riviera Credit Facility
Debt Instrument [Line Items]
Variable interest rate		5.00%
Blue Mountain
Debt Instrument [Line Items]
Variable interest rate	4.40%	4.50%

Debt - Additional Information (

Debt - Additional Information (Details)		Aug. 10, 2018USD ($)	Jun. 30, 2019USD ($)	Jul. 31, 2019USD ($)	May 31, 2019USD ($)	Apr. 30, 2019USD ($)	Feb. 08, 2019USD ($)	Dec. 31, 2018USD ($)
Riviera Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 245,000,000		$ 245,000,000	$ 385,000,000
Long-term line of credit			0					$ 20,000,000	[1]
Line of credit facility, remaining borrowing capacity			211,000,000
Reduction for outstanding letters of credit			$ (34,000,000)
Line of credit, maturity date			Aug. 4, 2020
Line of credit facility, unused capacity, commitment fee percentage			0.50%
Line of credit facility, interest payment term			Interest is generally payable in arrears quarterly for loans bearing interest based at the ABR and at the end of the applicable interest period for loans bearing interest at the LIBOR, or if such interest period is longer than three months, at the end of the three month intervals during such interest period.
Line of credit facility portion of properties required to maintain mortgages			85.00%
Riviera Credit Facility | Minimum
Debt Instrument [Line Items]
Current ratio			100.00%
Riviera Credit Facility | Maximum
Debt Instrument [Line Items]
Debt to EBITDA ratio			400.00%
Riviera Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 230,000,000
Long-term line of credit				0
Line of credit facility, remaining borrowing capacity				197,000,000
Letters of credit outstanding, amount				33,000,000
Riviera Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.50%
Riviera Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			3.50%
Riviera Credit Facility | ABR | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.50%
Riviera Credit Facility | ABR | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.50%
Blue Mountain Credit Facility
Debt Instrument [Line Items]
Long-term line of credit	[2]		$ 33,500,000					$ 4,500,000
Mayzure
Debt Instrument [Line Items]
Senior secured notes			$ 82,000,000
Debt instrument, interest rate			5.16%
Debt instrument, issuance date			Mar. 31, 2019
Debt instrument, maturity date			Sep. 20, 2028
Debt Instrument, financing fees and expenses			$ 3,000,000
Debt Instrument,principal repayment			3,000,000
Blue Mountain Midstream | Blue Mountain Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 200,000,000	400,000,000
Long-term line of credit			34,000
Line of credit facility, remaining borrowing capacity			155,000
Line of credit, maturity date		Aug. 10, 2023
Letters of credit outstanding, amount			$ 12,000
Line of credit facility, interest payment term			Interest is generally payable in arrears on the last day of March, June, September and December for loans bearing interest based at the ABR and at the end of the applicable interest period for loans bearing interest at the LIBOR, or if such interest period is longer than three months, at the end of three month intervals during such interest period.
Line of credit facility, current borrowing capacity							$ 200,000,000
Maximum ratio of consolidated owners' equity interest		35.00%
Minimum ratio of consolidated EBITDA to consolidated interest expense		250.00%
Maximum ratio of consolidated net debt secured by lien on property to consolidated EBITDA		300.00%
Blue Mountain Midstream | Blue Mountain Credit Facility | Minimum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage		0.375%
Indebtedness to capitalization ratio		0.35
Maximum ratio of consolidated net debt to consolidated EBITDA		450.00%
Blue Mountain Midstream | Blue Mountain Credit Facility | Maximum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage		0.50%
Maximum ratio of consolidated net debt to consolidated EBITDA		500.00%
Blue Mountain Midstream | Blue Mountain Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Long-term line of credit				42,000
Line of credit facility, remaining borrowing capacity				145,000
Letters of credit outstanding, amount				$ 13,000
Blue Mountain Midstream | Blue Mountain Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		2.00%
Blue Mountain Midstream | Blue Mountain Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		3.00%
Blue Mountain Midstream | Blue Mountain Credit Facility | ABR | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.00%
Blue Mountain Midstream | Blue Mountain Credit Facility | ABR | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		2.00%
Fair Value, Inputs, Level 2 | Mayzure
Debt Instrument [Line Items]
Notes payable, fair value disclosure			$ 82,000,000
[1]	Variable interest rate of 5.0% at December 31, 2018.
[2]	Variable interest rate of 4.4% and 4.5% at June 30, 2019, and December 31, 2018, respectively.

Derivatives - Schedule of Deriv

Derivatives - Schedule of Derivative Positions (Details)	Jun. 30, 2019$ / MMBTUMBblsMMMBTUMgal$ / bbl$ / gal
Natural Gas Commodity Contract | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu)	28,704
Average price ($/MMBtu)	2.88
Natural Gas Commodity Contract | Year 2019 | Collars
Derivative [Line Items]
Hedged volume (MMMBtu)	3,680
Average floor price ($/MMBtu)	2.75
Average ceiling price ($/MMBtu)	3
Natural Gas Commodity Contract | Year 2020 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu)	10,980
Average price ($/MMBtu)	2.82
Oil Commodity Contract | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MBbls	202
Average price ($/MMBtu) | $ / bbl	64.52
Oil Commodity Contract | Year 2020 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MBbls	183
Average price ($/MMBtu) | $ / bbl	64.63
P E P L Basis Swap | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MMMBTU	12,880	[1]
Hedge differential	(0.64)	[1]
P E P L Basis Swap | Year 2020 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MMMBTU	7,320	[1]
Hedge differential	(0.45)	[1]
Mich Con Basis Swap | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MMMBTU	3,680	[2]
Hedge differential	(0.19)	[2]
Mich Con Basis Swap | Year 2020 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MMMBTU	3,660	[2]
Hedge differential	(0.19)	[2]
N W P L Basis Swap | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MMMBTU	1,840
Hedge differential	(0.61)
Enable Basis Swap | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MMMBTU	765
Hedge differential	(0.23)
Southern Star Basis Swap | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | MMMBTU	765	[1]
Hedge differential	(0.57)	[1]
N G L Commodity Contract | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | Mgal	23,184
Average price ($/gallon) | $ / gal	0.34
Mont Belvieu Propane | Year 2019 | Swap
Derivative [Line Items]
Hedged volume (MMMBtu) | Mgal	7,728
Average price ($/gallon) | $ / gal	0.68
Mont Belvieu Propane And Conway Propane | Year 2019 | Margin Spread
Derivative [Line Items]
Hedged volume (MMMBtu) | Mgal	11,592
Average price ($/gallon) | $ / gal	(0.07)
Mont Belvieu Natural Gas And Conway Natural Gas | Year 2019 | Margin Spread
Derivative [Line Items]
Hedged volume (MMMBtu) | Mgal	11,592
Average price ($/gallon) | $ / gal	(0.09)
[1]	Settled or to be settled, as applicable, on the indicated pricing index to hedge basis differential to the NYMEX Henry Hub natural gas price.
[2]	In July 2019, in connection with the closing of the Michigan Assets Sale, the Company canceled its MichCon basis swaps for 2019 and 2020.

Derivatives - Additional Inform

Derivatives - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Settlements on Canceled Derivatives	$ 20,000
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure				$ 25,000
Cash settlements on derivatives		$ 3,000	$ (21,000)	$ (2,169)	$ (25,037)

Derivatives - Summary of Fair V

Derivatives - Summary of Fair Value of Derivatives Outstanding on Gross Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets:
Commodity derivatives	$ 24,767	$ 21,851
Liabilities:
Commodity derivatives	$ 9,909	$ 11,209

Derivatives - Summary of Gains

Derivatives - Summary of Gains and Losses on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative Instruments Gain Loss [Line Items]
Gains (losses) on commodity derivatives	$ 17,468	$ (7,525)	$ 2,047	$ (22,555)
Gains (losses) on commodity derivatives
Derivative Instruments Gain Loss [Line Items]
Gains (losses) on commodity derivatives	20,249	$ (7,525)	7,008	$ (22,555)
Marketing expenses
Derivative Instruments Gain Loss [Line Items]
Gains (losses) on commodity derivatives	$ (2,781)		$ (4,961)

Fair Value Measurements on a _3

Fair Value Measurements on a Recurring Basis - Schedule of Fair Value Hierarchy for Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands		Jun. 30, 2019	Dec. 31, 2018
Assets:
Commodity derivatives		$ 24,767	$ 21,851
Commodity derivatives	[1]	(4,272)	(6,490)
Commodity derivatives		20,495	15,361
Liabilities:
Commodity derivatives		9,909	11,209
Commodity derivatives	[1]	(4,272)	(6,490)
Commodity derivatives		$ 5,637	$ 4,719
[1]	Represents counterparty netting under agreements governing such derivatives.

Asset Retirement Obligations -

Asset Retirement Obligations - Schedule of Reconciliation of Company's Asset Retirement Obligations (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Asset Retirement Obligation Disclosure [Abstract]
Asset retirement obligations at beginning of period	$ 105,259
Liabilities added from drilling	195
Liabilities associated with assets divested	(14,921)
Current year accretion expense	3,079
Settlements	(805)
Asset retirement obligations at end of period	$ 92,807

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($)	1 Months Ended	6 Months Ended
	Mar. 31, 2017	Jun. 30, 2019	Jun. 30, 2018
Commitments And Contingencies Disclosure [Abstract]
Loss contingency, damages sought, value	$ 31,000,000
Payments for legal settlements		$ 0	$ 0

Operating Leases - Additional I

Operating Leases - Additional Information (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)
Operating Leased Assets [Line Items]
lease expenses	$ 1	$ 2
Lease liability	$ 3	$ 3
Operating Lease, discount rate, percent	5.00%	5.00%
Operating lease, weighted average remaining lease term	1 year	1 year
Lessor operating lease expiry date		2024
Lease income excluding variable lease payments	$ 1	$ 1
Roan Resources LLC
Operating Leased Assets [Line Items]
Lessor operating lease expiry date		2023

Operating Leases - Future Minim

Operating Leases - Future Minimum Lease Payments (Details) $ in Thousands	Jun. 30, 2019USD ($)
Leases [Abstract]
2019	$ 2,647
2020	2,145
2021	252
2022	4
Total undiscounted lease payments	$ 5,048

Operating Leases - Future Min_2

Operating Leases - Future Minimum Lease Revenues (Details) $ in Thousands	Jun. 30, 2019USD ($)
Leases [Abstract]
2019	$ 1,006
2020	2,058
2021	2,058
2022	2,058
2023	525
Thereafter	127
Total payments to be received	$ 7,832

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Details) - USD ($)	Aug. 07, 2018	Dec. 31, 2018	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of parent's employee-related expenses					100.00%
Stock repurchased during period, value			$ 43,307,000	$ 34,437,000
Issuance of common stock				$ 1,486,000
Class A Units | LINN Energy
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based payment liability		$ 4,000,000	$ 10,000,000		$ 10,000,000
Class A Units | Blue Mountain Midstream
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common unit, issued			701,350		701,350
Class A Units | Linn Holdco II | Blue Mountain Midstream
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, ownership percentage					100.00%
Class B Common Stock | Blue Mountain Midstream
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common unit, issued			0		0
Maximum | Class B Common Stock | Blue Mountain Midstream
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common unit, issued			58,750		58,750
Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock repurchased during period, shares			3,170,000	2,488,000
Stock repurchased during period, value			$ 32,000	$ 25,000	$ 78,000,000
Issuance of common stock				$ 1,000
Omnibus Incentive Plan | Common Stock | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement, shares/units available for issuance			1,296,637		1,296,637
BMM Incentive Plan | Class B Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period					45,378
Shares issuable under the plan			56,717		56,717
Share-based compensation arrangement by share-based payment award, description					Payment for the BMM PSUs only occurs upon the achievement by Blue Mountain Midstream of a certain equity value (subject to certain adjustments) specified in the award agreements.  If such equity value is achieved, the recipient of the BMM PSU will receive a number of Class B Units (or an equivalent value in cash, at the Board’s discretion) equal to 50% to 200% of the target number of BMM PSUs held by such individual, as specified in the award agreements
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period	520,837
Restricted Stock Units (RSUs) | Liquidity program
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock repurchased during period, shares					136,632
Stock repurchased during period, value					$ 2,000
Issuance of common stock					$ 81,923,000
Restricted Stock Units (RSUs) | Blue Mountain Midstream
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period					11,339
Share-based compensation arrangement by share-based payment award, Equity instruments other than options, Vested in period, Fair value					$ 12,000,000
Vesting period					2 years
Restricted Stock Units (RSUs) | Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period					487,992
Shares issuable under the plan			2,577,268		2,577,268
Restricted Stock Units (RSUs) | Omnibus Incentive Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement, shares/units available for issuance			20,067		20,067
Restricted Stock Units (RSUs) | BMM Incentive Plan | Class B Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period					11,339
Riviera Legacy RSUs | Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period					227,910
Riviera Performance Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period		1,899,156			22,689
Share-based compensation arrangement by share-based payment award, Equity instruments other than options, Vested in period, Fair value		$ 2,000,000			$ 6,000,000
Riviera Performance Shares | Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period					1,861,366
Riviera Performance Shares | Omnibus Incentive Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement, shares/units available for issuance			76,542		76,542
Riviera Performance Shares | BMM Incentive Plan | Class B Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options, grants in period					22,689

Share-Based Compensation - Summ

Share-Based Compensation - Summary of Share-Based Compensation Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share/unit-based compensation expenses	$ 3,680	$ 58,188	$ 9,987	$ 75,225
Income tax benefit	639	4,315	1,684	6,732
Marketing expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share/unit-based compensation expenses	55		162	0
General and Administrative Expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share/unit-based compensation expenses	$ 3,625	$ 58,188	$ 9,825	$ 75,225

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Details) - shares	Aug. 07, 2018	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Earnings Per Share Basic [Line Items]
Common stock, shares, issued	76,190,908		63,621,542		69,197,284
Common stock issued for each share of LINN held by shareholder of parent	1
Stock split description			Each shareholder of the Parent received one share of Riviera common stock for each share of LINN Class A common stock held by such shareholder of the Parent at the close of business on August 7, 2018, the record date.
Restricted Stock Units (RSUs)
Earnings Per Share Basic [Line Items]
Anti dilutive restricted stock units		0		0

Earnings Per Share - Reconcilia

Earnings Per Share - Reconciliation of Numerators and Denominators of Basic and Diluted Per Share Computations for Net Income (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
(Loss) income from continuing operations	$ (6,676)		$ 8,955		$ 6,050	$ 43,563
Income (loss) from discontinued operations, net of income taxes	0		(1,758)		0	34,573
Net (loss) income	$ (6,676)	$ 12,726	$ 7,197	$ 70,939	$ 6,050	$ 78,136
Income (loss) per share:
(Loss) income from continuing operations per share ‒ Basic	$ (0.10)		$ 0.11		$ 0.09	$ 0.58
(Loss) income from continuing operations per share ‒ Diluted	(0.10)		0.11		0.09	0.58
Income (loss) from discontinued operations per share ‒ Basic	0		(0.02)		0	0.45
Income (loss) from discontinued operations per share ‒ Diluted	0		(0.02)		0	0.45
Net (loss) income per share ‒ Basic	(0.10)		0.09		0.09	1.03
Net (loss) income per share ‒ Diluted	$ (0.10)		$ 0.09		$ 0.09	$ 1.03
Weighted average shares outstanding ‒ Basic	65,005		76,191		66,900	76,191
Dilutive effect of unit equivalents	84		0		179	0
Weighted average shares outstanding ‒ Diluted	65,089		76,191		67,079	76,191

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	23.00%	60.00%	29.00%	60.00%
Blended Tax Rate	24.00%		24.00%

Supplemental Disclosures to t_3

Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows - Schedule of Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Other current assets
Prepaids	$ 10,573	$ 13,493
Receivable from related party	0	8,300
Inventories	3,383	3,720
Other	682	1,208
Other current assets	$ 14,638	$ 26,721

Supplemental Disclosures to t_4

Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows - Schedule of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Other accrued liabilities
Accrued compensation	$ 9,769	$ 16,820
Asset retirement obligations (current portion)	1,327	1,445
Deposits	9,874	10,060
Other	3,686	6,149
Other accrued liabilities	$ 24,656	$ 34,474

Supplemental Disclosures to t_5

Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 80,229	$ 18,529
Restricted cash	26,457	31,248
Cash, cash equivalents and restricted cash	$ 106,686	$ 49,777	$ 344,752	$ 520,922

Supplemental Disclosures to t_6

Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows - Supplemental Disclosures to the Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Supplemental Disclosures To The Condensed Consolidated Statements Of Cash Flows [Abstract]
Cash payments for interest, net of amounts capitalized	$ 1,471	$ 0
Cash payments for income taxes	0	0
Cash payments for reorganization items, net	472	2,911
Noncash investing activities:
Accrued capital expenditures	$ 11,140	$ 21,968

Supplemental Disclosures to t_7

Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows - Additional Information (Details) - USD ($) $ in Thousands	2 Months Ended
	Feb. 28, 2017	Jun. 30, 2019	Dec. 31, 2018
Schedule of supplemental cash flow disclosures [Line Items]
Restricted cash		$ 26,457	$ 31,248
Mayzure
Schedule of supplemental cash flow disclosures [Line Items]
Restricted cash		1,000
Predecessor
Schedule of supplemental cash flow disclosures [Line Items]
Increase (Decrease) in Restricted Cash for Operating Activities	$ 80,000
Professional fees
Schedule of supplemental cash flow disclosures [Line Items]
Restricted cash		16,000	21,000
Deposits for divestitures
Schedule of supplemental cash flow disclosures [Line Items]
Restricted cash		$ 9,000	$ 10,000

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 17, 2019	Aug. 31, 2017	Jul. 24, 2019	May 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Mar. 01, 2018
Related Party Transaction [Line Items]
Stock repurchased during period, value					$ 43,307	$ 34,437
Revenues					125,301		$ 136,358	$ 274,996	$ 325,395
Accounts receivable – trade, net					82,218			82,218		$ 114,489
Roan Resources LLC
Related Party Transaction [Line Items]
Equity method investment, ownership percentage		50.00%
Related party monthly fee		$ 1,250
Service fees from related party							1,000		5,000
Term of lease agreement											5 years
Term of purchase agreement						Jan. 31, 2029
Revenues					8,000			8,000
Accounts receivable – trade, net					5,000			5,000
Related party transaction, purchases from related party					25,000		$ 15,000	59,000	$ 32,000
Due to related parties, current					$ 7,000			$ 7,000		14,000
Due from related parties, current										$ 9,000
Related party agreement term	10 years
Common Stock
Related Party Transaction [Line Items]
Stock repurchased during period, shares								5,643,131
Share repurchased program average price per share					$ 13.78			$ 13.78
Stock repurchased during period, value					$ 32	$ 25		$ 78,000
Private Purchase | Common Stock
Related Party Transaction [Line Items]
Stock repurchased during period, shares								278,587
Share repurchased program average price per share					$ 13.55			$ 13.55
Stock repurchased during period, value								$ 4,000
Private Purchase | Common Stock | York Select Strategy Master Fund
Related Party Transaction [Line Items]
Stock repurchased during period, shares				278,587
Share repurchased program average price per share				$ 13.55
Stock repurchased during period, value				$ 4,000
Private Purchase | Common Stock | Fir Tree Capital Opportunity Master Fund
Related Party Transaction [Line Items]
Stock repurchased during period, shares			285,024
Private Purchase | Common Stock | Fir Tree Capital Opportunity Fund (E)
Related Party Transaction [Line Items]
Stock repurchased during period, shares			39,485
Share repurchased program average price per share			$ 10.90
Stock repurchased during period, value			$ 4,000

Segments - Additional Informati

Segments - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019Segment
Segment Reporting [Abstract]
Number of reportable segments	2

Segments - Schedule of Segment

Segments - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Revenues	$ 125,301	$ 136,358	$ 274,996	$ 325,395
Lease operating expenses	23,845	24,088	47,897	71,972
Transportation expenses	18,053	21,213	37,203	40,307
Marketing expenses	41,811	40,327	95,200	82,082
Taxes other than income taxes	2,599	7,115	8,899	15,567
Total direct operating expenses	86,308	92,743	189,199	209,928
Field level cash flow	38,993	43,615	85,797	115,467
Gains on commodity derivatives	20,249	(7,525)	7,008	(22,555)
Other indirect income (expenses)	(67,965)	(13,799)	(84,309)	15,526
(Loss) income from continuing operations before income taxes	(8,723)	22,291	8,496	108,438
Upstream
Segment Reporting Information [Line Items]
Revenues	82,657	116,292	190,024	283,437
Lease operating expenses	23,845	24,088	47,897	71,972
Transportation expenses	18,053	21,213	37,203	40,307
Marketing expenses	7,836	20,244	27,620	41,380
Taxes other than income taxes	6,146	6,737	11,669	14,908
Total direct operating expenses	55,880	72,282	124,389	168,567
Field level cash flow	26,777	44,010	65,635	114,870
Blue Mountain
Segment Reporting Information [Line Items]
Revenues	42,644	20,066	84,972	41,958
Lease operating expenses	0	0	0	0
Transportation expenses	0	0	0	0
Marketing expenses	31,031	20,083	62,456	40,702
Taxes other than income taxes	708	285	1,383	477
Total direct operating expenses	31,739	20,368	63,839	41,179
Field level cash flow	10,905	(302)	21,133	779
Not Allocated to Segments
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Lease operating expenses	0	0	0	0
Transportation expenses	0	0	0	0
Marketing expenses	2,944	0	5,124	0
Taxes other than income taxes	(4,255)	93	(4,153)	182
Total direct operating expenses	(1,311)	93	971	182
Field level cash flow	1,311	(93)	(971)	(182)
Gains on commodity derivatives	20,249	(7,525)	7,008	(22,555)
Other indirect income (expenses)	(67,965)	(13,799)	(84,309)	15,526
Oil, Natural Gas and NGL Sales
Segment Reporting Information [Line Items]
Revenues	66,757	87,004	143,102	223,880
Oil, Natural Gas and NGL Sales | Upstream
Segment Reporting Information [Line Items]
Revenues	66,757	87,004	143,102	223,880
Oil, Natural Gas and NGL Sales | Blue Mountain
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Oil, Natural Gas and NGL Sales | Not Allocated to Segments
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Marketing
Segment Reporting Information [Line Items]
Revenues	53,394	42,967	120,741	89,234
Marketing | Upstream
Segment Reporting Information [Line Items]
Revenues	10,750	22,901	35,769	47,276
Marketing | Blue Mountain
Segment Reporting Information [Line Items]
Revenues	42,644	20,066	84,972	41,958
Marketing | Not Allocated to Segments
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Other Revenues
Segment Reporting Information [Line Items]
Revenues	5,150	6,387	11,153	12,281
Other Revenues | Upstream
Segment Reporting Information [Line Items]
Revenues	5,150	6,387	11,153	12,281
Other Revenues | Blue Mountain
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Other Revenues | Not Allocated to Segments
Segment Reporting Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0