CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
CURRENT ASSETS
Cash and cash equivalents	$ 20,963	$ 70,282
Accounts receivable	68,119	82,253
Commodity derivative assets	18,147	38,273
Prepaid expenses and other current assets	2,026	2,319
TOTAL CURRENT ASSETS	109,255	193,127
PROPERTY AND EQUIPMENT
Oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of $943,916 and $890,338 at September 30, 2024 and December 31, 2023, respectively	3,057,879	3,026,394
Accumulated depreciation, depletion, amortization, and impairment	(1,962,614)	(1,961,899)
Oil and natural gas properties, net	1,095,265	1,064,495
Other property and equipment, net of accumulated depreciation of $14,453 and $14,163 at September 30, 2024 and December 31, 2023, respectively	1,031	1,007
NET PROPERTY AND EQUIPMENT	1,096,296	1,065,502
DEFERRED CHARGES AND OTHER LONG-TERM ASSETS	7,266	8,255
TOTAL ASSETS	1,212,817	1,266,884
CURRENT LIABILITIES
Accounts payable	3,742	6,270
Accrued liabilities	13,913	17,003
Commodity derivative liabilities	0	1,229
Other current liabilities	1,803	1,334
TOTAL CURRENT LIABILITIES	19,458	25,836
LONG–TERM LIABILITIES
Accrued incentive compensation	1,082	1,699
Commodity derivative liabilities	3,008	81
Asset retirement obligations	18,751	19,030
Other long-term liabilities	2,217	2,893
TOTAL LIABILITIES	44,516	49,539
COMMITMENTS AND CONTINGENCIES (Note 7)
EQUITY
Partners' equity – general partner interest	0	0
TOTAL EQUITY	867,823	918,208
TOTAL LIABILITIES, MEZZANINE EQUITY, AND EQUITY	1,212,817	1,266,884
Series B Cumulative Convertible Preferred Units
MEZZANINE EQUITY
Partners' equity – Series B cumulative convertible preferred units, 14,711 units outstanding at September 30, 2024 and December 31, 2023	300,478	299,137
Common units
EQUITY
Partners' equity – common units, 210,688 and 209,991 units outstanding at September 30, 2024 and December 31, 2023, respectively	$ 867,823	$ 918,208