Supplemental Oil and Gas Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2021

Supplemental Oil and Gas Information (Unaudited)

Schedule of Capitalized Costs Relating to Oil and Natural Gas Producing Activities

	December 31,
	2021		2020
	(In thousands)
Evaluated oil and natural gas properties	$	799,532	$	775,167
Support equipment and facilities		145,324		142,208
Accumulated depletion, depreciation, and amortization		(625,754)		(602,861)
Total	$	319,102	$	314,514

Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development Activities

	For the Year Ended
	December 31,
	2021		2020
	(In thousands)
Property acquisition costs, proved	$	3	$	42
Property acquisition costs, unproved		—		(49,307)
Exploration		—		—
Development		27,478		29,543
Total	$	27,481	$	(19,722)

Schedule of Product Prices Used for Valuing the Reserves

The weighted-average benchmark product prices used for valuing the reserves are based upon the average of the first-day-of-the-month price for each month within the period January through December of each year presented:

	2021		2020
Oil ($/Bbl):
WTI (1)	$	66.56	$	39.57
NGL ($/Bbl):
WTI (1)	$	66.56	$	39.57
Natural Gas ($/MMbtu):
Henry Hub (2)	$	3.60	$	1.99

(1) The weighted average WTI price was adjusted by lease for quality, transportation fees, and a regional price differential.

(2) The weighted average Henry Hub price was adjusted by lease for energy content, compression charges, transportation fees, and regional price differentials.

Schedule of Net Reserves

	For the Year Ended December 31, 2021
	Oil	Gas	NGLs	Total
	(MBbls)	(MMcf)	(MBbls)	(MBoe)
Proved developed and undeveloped reserves:
Beginning of year	46,676	274,139	21,484	113,849
Extensions and discoveries	746	4,283	215	1,674
Production	(3,351)	(23,808)	(1,430)	(8,747)
Sale of minerals in place	(3)	(274)	(12)	(61)
Revision of previous estimates	933	60,010	3,580	14,515
End of year	45,001	314,350	23,837	121,230
Proved developed reserves (1):
Beginning of year	35,613	252,218	19,009	96,658
End of year	43,857	309,794	23,574	119,063
Proved undeveloped reserves (2):
Beginning of year	11,063	21,921	2,475	17,191
End of year	1,144	4,556	263	2,167

(1) Our reserves related to our Beta properties have been reclassified as proved developed non-producing at December 31, 2021.

(2) Change to the Company’s development plan has resulted in removal of PUD locations in Oklahoma, Rockies and California.

	For the Year Ended December 31, 2020
	Oil	Gas	NGLs	Total
	(MBbls)	(MMcf)	(MBbls)	(MBoe)
Proved developed and undeveloped reserves:
Beginning of period	70,772	377,869	29,252	163,002
Extensions and discoveries	291	655	61	461
Production	(3,887)	(27,473)	(1,725)	(10,190)
Revision of previous estimates	(20,500)	(76,912)	(6,104)	(39,424)
End of period	46,676	274,139	21,484	113,849
Proved developed reserves:
Beginning of period	53,476	320,731	23,646	130,577
End of period	35,613	252,218	19,009	96,658
Proved undeveloped reserves:
Beginning of period	17,296	57,138	5,606	32,425
End of period	11,063	21,921	2,475	17,191

Standardized Measure of Discounted Future Net Cash Flows

	For the Year Ended
	December 31,
	2021		2020
	(In thousands)
Future cash inflows	$	4,569,313	$	2,410,260
Future production costs (1)		(2,691,875)		(1,589,945)
Future development costs (1)		(231,040)		(375,146)
Future income tax expense		—		—
Future net cash flows for estimated timing of cash flows		1,646,398		445,169
10% annual discount for estimated timing of cash flows		(726,553)		(147,358)
Standardized measure of discounted future net cash flows	$	919,845	$	297,811

(1) For the year ended December 31, 2021 and 2020, onshore abandonment costs are included in future production cost and offshore abandonment costs are included in future development costs.

Schedule of Changes in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves

	For the Year Ended
	December 31,
	2021		2020
	(In thousands)
Beginning of year	$	297,811	$	916,561
Sale of oil and natural gas produced, net of production costs		(171,326)		(47,687)
Sale of minerals in place		(45)		—
Extensions and discoveries		17,035		3,687
Changes in prices and costs		572,897		(548,429)
Previously estimated development costs incurred		45,298		49,144
Net changes in future development costs		113,546		89,997
Revisions of previous quantities		46,271		(150,245)
Accretion of discount		29,781		91,657
Change in production rates and other		(31,423)		(106,874)
End of year	$	919,845	$	297,811