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v3.21.1

Disaggregation of oil, gas, and NGL production revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 423,165 | $ 354,233
Revenue, Remaining Performance Obligation, Amount | 0 |
Midland Basin [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | 344,011 | 287,528
South Texas [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 79,154 | $ 66,705
Revenue Benchmark [Member] | Geographic Concentration Risk [Member] |  |
Segment Reporting Information [Line Items] |  |
Relative percentage | 100.00% | 100.00%
Revenue Benchmark [Member] | Geographic Concentration Risk [Member] | Midland Basin [Member] |  |
Segment Reporting Information [Line Items] |  |
Relative percentage | 81.00% | 81.00%
Revenue Benchmark [Member] | Geographic Concentration Risk [Member] | South Texas [Member] |  |
Segment Reporting Information [Line Items] |  |
Relative percentage | 19.00% | 19.00%
Oil production revenue [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 305,777 | $ 291,693
Oil production revenue [Member] | Midland Basin [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | 286,105 | 276,136
Oil production revenue [Member] | South Texas [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | 19,672 | 15,557
Gas production revenue [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | 89,658 | 40,710
Gas production revenue [Member] | Midland Basin [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | 57,806 | 11,334
Gas production revenue [Member] | South Texas [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | 31,852 | 29,376
NGL production revenue [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | 27,730 | 21,830
NGL production revenue [Member] | Midland Basin [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | 100 | 58
NGL production revenue [Member] | South Texas [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 27,630 | $ 21,772

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