Supplemental Oil and Gas Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2023

Supplemental Oil and Gas Information (Unaudited)

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

	December 31,
	2023		2022
	(In thousands)
Evaluated oil and natural gas properties	$	873,478	$	840,310
Support equipment and facilities		149,069		147,496
Accumulated depletion, depreciation, and amortization		(676,573)		(648,900)
Total	$	345,974	$	338,906

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

	For the Year Ended
	December 31,
	2023		2022
	(In thousands)
Property acquisition costs, proved	$	—	$	—
Property acquisition costs, unproved		—		—
Exploration		—		—
Development		34,742		42,949
Total	$	34,742	$	42,949

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:

	2023		2022
Oil ($/Bbl):
WTI (1)	$	78.22	$	93.67
NGL ($/Bbl):
WTI (1)	$	78.22	$	93.67
Natural Gas ($/MMbtu):
Henry Hub (2)	$	2.64	$	6.36

(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, 2023
	Oil	Gas	NGLs	Total
	(MBbls)	(MMcf)	(MBbls)	(MBoe)
Proved developed and undeveloped reserves:
Beginning of year	47,868	312,792	24,026	124,027
Production	(2,773)	(20,297)	(1,323)	(7,479)
Revision of previous estimates	(4,017)	(65,617)	(3,518)	(18,471)
End of year	41,078	226,878	19,185	98,077
Proved developed reserves:
Beginning of year	47,010	312,185	23,928	122,969
End of year	39,306	226,427	19,108	96,151
Proved undeveloped reserves:
Beginning of year	858	607	98	1,058
End of year	1,772	451	77	1,926

	For the Year Ended December 31, 2022
	Oil	Gas	NGLs	Total
	(MBbls)	(MMcf)	(MBbls)	(MBoe)
Proved developed and undeveloped reserves:
Beginning of year	45,001	314,350	23,837	121,230
Production	(2,327)	(22,993)	(1,389)	(7,548)
Revision of previous estimates	5,194	21,435	1,578	10,345
End of year	47,868	312,792	24,026	124,027
Proved developed reserves(1):
Beginning of period	43,857	309,794	23,574	119,063
End of period	47,010	312,185	23,928	122,969
Proved undeveloped reserves(2):
Beginning of period	1,144	4,556	263	2,167
End of period	858	607	98	1,058

(1) Our reserves related to our Beta properties were reclassified as proved developed non-producing at December 31, 2022.

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

Standardized Measure of Discounted Future Net Cash Flows

	For the Year Ended
	December 31,
	2023		2022
	(In thousands)
Future cash inflows	$	4,277,014	$	7,373,499
Future production costs (1)		(2,751,065)		(3,824,348)
Future development costs (1)		(313,290)		(309,188)
Future income tax expense		(203,770)		(520,731)
Future net cash flows for estimated timing of cash flows		1,008,889		2,719,232
10% annual discount for estimated timing of cash flows		(382,759)		(1,381,276)
Standardized measure of discounted future net cash flows	$	626,130	$	1,337,956

(1) For the years ended December 31, 2023 and 2022, 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,
	2023		2022
	(In thousands)
Beginning of year	$	1,337,956	$	919,845
Changes in prices and costs		(798,942)		856,545
Revisions of previous quantities		(196,093)		59,216
Sale of oil and natural gas produced, net of production costs		(106,469)		(213,667)
Net change in taxes		180,530		(311,412)
Accretion of discount		164,937		91,985
Change in production rates and other		38,174		(57,484)
Net changes in future development costs		(3,669)		(20,129)
Previously estimated development costs incurred		9,706		13,057
End of year	$	626,130	$	1,337,956