Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	$ 672,730	$ 794,848
(Loss) on derivative instruments	(9,459)	0
Gain on sale of assets and other operating income	2,440	1,564
Total revenues and other income	665,711	796,412
Revenue from production
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	672,730	794,603
Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	551,019	691,532
Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	19,483	19,647
Net natural gas revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	102,228	83,424
Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	0	245
United States - Onshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	109,458	142,543
United States - Onshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	8,487	7,836
United States - Onshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	7,967	4,276
United States Offshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	352,362	480,439
United States Offshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	9,249	10,374
United States Offshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	19,941	12,889
Canada - Onshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	14,730	13,873
Canada - Onshore | Net natural gas liquids revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	1,747	1,437
Canada - Onshore | Net natural gas revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	74,320	66,259
Canada - Onshore | Sales of purchased natural gas
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	0	245
Canada - Offshore | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	74,469	54,775
Other | Net crude oil and condensate revenue
Disaggregation of Revenue [Line Items]
Total revenue from sales to customers	$ 0	$ (98)