| In millions, except per share items | Jun-30-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Cash flows from operating activities: | | | | | | | | |
| Net income (loss) | | 655.0 | 626.8 | 490.1 | 360.9 | 256.7 | 87.0 | 29.7 |
| Adjustments to reconcile net income (loss) to net cash from operating activities: | | | | | | | | |
| Provision for (benefit from) deferred income taxes | | | -49.7 | | | | | |
| Depletion | | 121.1 | 118.6 | 113.5 | 105.5 | 103.0 | 102.5 | 101.9 |
| (Gain) loss on derivative instruments, net | | 18.1 | 18.1 | 28.6 | 56.3 | 69.4 | 86.8 | 82.3 |
| Net cash receipts (payments) on derivatives | | -31.3 | -58.7 | -73.7 | -87.9 | -92.6 | -79.5 | -70.3 |
| Other | | 5.1 | 5.8 | 5.6 | 5.2 | 4.7 | 4.2 | 3.8 |
| Changes in operating assets and liabilities: | | | | | | | | |
| Royalty income receivable | | -13.1 | -47.1 | -80.4 | -56.7 | -36.4 | -15.0 | -9.9 |
| Royalty income receivable—related party | | -4.1 | 11.8 | -6.9 | 1.3 | -0.1 | -7.1 | -2.8 |
| Accounts payable and accrued liabilities | | 0.2 | -1.5 | -1.7 | 4.2 | 2.7 | 7.9 | -1.1 |
| Income tax payable | | | | 2.3 | | | | |
| Other | | -4.1 | -5.6 | -0.8 | -0.4 | -0.3 | -7.8 | 0.8 |
| Net cash provided by (used in) operating activities | | 699.8 | 620.7 | 476.5 | 388.3 | 307.1 | 253.0 | 210.4 |
| |
| Cash flows from investing activities: | | | | | | | | |
| Acquisitions of oil and natural gas interests | | -62.9 | -312.8 | -278.5 | -278.5 | -281.2 | -7.9 | -1.2 |
| Proceeds from sale of oil and natural gas interests | | | | 29.3 | | | | |
| Other | | -1.2 | | | | | | |
| Net cash provided by (used in) investing activities | | 47.6 | -254.8 | -249.2 | -249.1 | -281.2 | 34.1 | 48.2 |
| |
| Cash flows from financing activities: | | | | | | | | |
| Proceeds from borrowings under credit facility | | 272.0 | 472.0 | 449.0 | 374.0 | 330.0 | 96.0 | 37.0 |
| Repayment on credit facility | | -424.0 | -319.0 | -261.0 | -183.0 | -110.0 | -130.5 | -128.5 |
| Repayment of senior notes | | | | -49.0 | | | | |
| Repurchased units as part of unit buyback | | -150.6 | -131.4 | -94.4 | -72.2 | -46.0 | -57.6 | -43.8 |
| Distributions to public | | -182.8 | -177.0 | -137.9 | -102.8 | -75.9 | -52.8 | -33.9 |
| Distributions to Diamondback | | -234.1 | -221.3 | -172.0 | -130.9 | -100.7 | -75.1 | -47.6 |
| Other | | -0.1 | -0.2 | -0.1 | -3.0 | -3.0 | -3.0 | -3.0 |
| Net cash provided by (used in) financing activities | | -768.6 | -425.8 | -265.4 | -117.8 | -5.6 | -223.0 | -225.8 |
| Net increase (decrease) in cash and cash equivalents | | -21.3 | -59.9 | -38.1 | 21.3 | 20.3 | 64.2 | 38.8 |