| 1 | Warburg Pincus Private Equity VIII L.P. WPP GP LLC WP Antero LLC WARBURG PINCUS LLC WARBURG PINCUS & CO. KAYE CHARLES R Landy Joseph P. Director 10% Owner | 2018-02-12 16:47:21 | 46,609,601 0 | 46,609,601 | Form 13G |
| 2 | RADY PAUL M See Remarks | 2025-05-08 17:25:14 | 11,889,973 5,284,264 | 17,174,237 | Form 4 |
| 3 | Manning Christopher Reid Director | 2016-03-02 17:01:20 | 5,186 16,220,488 | 16,225,674 | Form 4 |
| 4 | SailingStone Capital Partners LLC SailingStone Holdings LLC Davis MacKenzie B Settles Kenneth L Jr 10% Owner | 2021-02-19 15:30:09 | 13,585,032 0 | 13,585,032 | Form 13G |
| 5 | Warren Glen C Jr See Remarks | 2021-04-26 16:32:40 | 9,606,120 803,007 | 10,409,127 | Form 4 |
| 6 | Schopp Alvyn A. See Remarks | 2022-02-14 18:17:21 | 2,443,401 0 | 2,443,401 | Form 5 |
| 7 | Kennedy Michael N. See Remarks | 2026-05-04 21:41:21 | 1,085,192 0 | 1,085,192 | Form 4 |
| 8 | Ash W Patrick See Remarks | 2022-10-21 08:05:54 | 928,917 0 | 928,917 | Form 4 |
| 9 | Warburg Pincus Private Equity X L.P. Warburg Pincus X Partners L.P. Warburg Pincus Private Equity X O&G L.P. Warburg Pincus X L.P. Warburg Pincus X LLC Warburg Pincus Partners LLC WARBURG PINCUS LLC WARBURG PINCUS & CO. KAYE CHARLES R Landy Joseph P. Director 10% Owner | 2020-02-11 19:22:02 | 660,849 0 | 660,849 | Form 13G |
| 10 | Warburg Pincus Private Equity X O&G L.P. Warburg Pincus Private Equity X L.P. Warburg Pincus X Partners L.P. Warburg Pincus X L.P. Warburg Pincus X GP L.P. WPP GP LLC Warburg Pincus Partners L.P. Warburg Pincus Partners GP LLC WARBURG PINCUS & CO. Director 10% Owner | 2020-02-11 19:22:02 | 660,849 0 | 660,849 | Form 13G |
| 11 | Warburg Pincus Private Equity X O&G L.P. Warburg Pincus X Partners L.P. Warburg Pincus X L.P. Warburg Pincus X GP L.P. WPP GP LLC Warburg Pincus Partners L.P. Warburg Pincus Partners GP LLC WARBURG PINCUS & CO. Director 10% Owner | 2020-02-11 19:22:02 | 660,849 0 | 660,849 | Form 13G |
| 12 | KAGAN PETER Director | 2019-06-12 17:26:46 | 371,851 0 | 371,851 | Form 4 |
| 13 | Keenan W Howard JR Director | 2026-04-14 17:04:06 | 371,321 0 | 371,321 | Form 4 |
| 14 | Krueger Brendan E. See Remarks | 2026-03-18 20:47:22 | 328,619 0 | 328,619 | Form 4 |
| 15 | Schultz Yvette K See Remarks | 2026-05-04 21:43:30 | 277,665 0 | 277,665 | Form 4 |
| 16 | McNeilly Ward D. See Remarks | 2018-04-16 19:12:57 | 248,716 0 | 248,716 | Form 4 |
| 17 | Kilstrom Kevin J. Senior VP - Production | 2019-04-17 17:04:30 | 212,886 0 | 212,886 | Form 4 |
| 18 | Hardesty Benjamin A. Director | 2026-04-14 16:58:03 | 152,155 500 | 152,655 | Form 4 |
| 19 | Levy James R. Director | 2019-06-12 17:25:46 | 116,214 0 | 116,214 | Form 4 |
| 20 | Tyree Thomas B JR Director | 2026-04-14 17:02:25 | 102,841 0 | 102,841 | Form 4 |
| 21 | Sutil Vicky Director | 2026-04-14 17:03:15 | 102,841 0 | 102,841 | Form 4 |
| 22 | KORUS PAUL Director | 2021-04-14 16:19:29 | 102,640 0 | 102,640 | Form 4 |
| 23 | Yoo K. Phil See Remarks | 2020-04-17 07:30:31 | 84,598 0 | 84,598 | Form 4 |
| 24 | CLARK ROBERT J Director | 2025-04-14 17:01:53 | 76,589 0 | 76,589 | Form 4 |
| 25 | Mutschler Jacqueline C Director | 2026-04-14 17:00:42 | 68,374 0 | 68,374 | Form 4 |
| 26 | McConnell Joyce E. Director | 2020-01-14 19:26:13 | 66,988 0 | 66,988 | Form 4 |
| 27 | Pearce Sheri See Remarks | 2026-03-10 21:26:32 | 50,658 0 | 50,658 | Form 4 |
| 28 | Schroer Brenda R Director | 2026-04-14 16:59:48 | 37,044 0 | 37,044 | Form 4 |
| 29 | Connor Richard W. Director | 2019-01-14 18:31:29 | 30,749 40 | 30,789 | Form 4 |
| 30 | Munoz Jeffrey S. Director | 2026-04-14 17:01:29 | 8,987 0 | 8,987 | Form 4 |
| 31 | Antero Resources LLC 10% Owner | 2013-10-09 19:33:49 | 1,127 0 | 1,127 | Form 3 |
| 32 | Warburg Pincus Private Equity VIII L.P. Warburg Pincus Partners L.P. Warburg Pincus Partners GP LLC WARBURG PINCUS & CO. Director 10% Owner | 2018-11-09 14:32:23 | 0 0 | 0 | Form 4 |
| 33 | Antero Resources Investment LLC 10% Owner | 2016-02-11 17:11:05 | 0 0 | 0 | Form 13G |
| 34 | WARBURG PINCUS LLC KAYE CHARLES R Landy Joseph P. Director 10% Owner | 2019-06-12 17:27:01 | 0 0 | 0 | Form 4 |