OPERATING REVENUES - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Disaggregation of operating revenue
Total oil, natural gas and natural gas liquids sales	$ 98,706	$ 80,504	$ 281,404	$ 199,873
Other	443	312	858	827
Total operating revenues	99,149	80,816	282,262	200,700
Oil
Disaggregation of operating revenue
Total oil, natural gas and natural gas liquids sales	70,406	60,023	206,874	153,228
Natural gas
Disaggregation of operating revenue
Total oil, natural gas and natural gas liquids sales	15,656	9,435	39,296	23,839
NGLs
Disaggregation of operating revenue
Total oil, natural gas and natural gas liquids sales	12,644	$ 11,046	35,234	$ 22,806
Accounts receivable
Disaggregation of operating revenue
Due from contracts with customers	$ 36,500		$ 36,500		$ 35,100