| 1501 | WTXR Operating (Texas), Inc. | Carrollton, TX 75007 | Oil Operator | Dec 2025 |
| 1502 | Wulf Oil Co | | Oil & Gas Operator | Dec 1984 |
| 1503 | Wulf Oil Corp. | | Oil & Gas Operator | Dec 1985 |
| 1504 | WV BD. Directors-State College System | Charleston, WV 25301-0000 | Gas Operator | Dec 2017 |
| 1505 | WV Wells, LTD | | Oil & Gas Operator | Nov 2021 |
| 1506 | WVH Operating LLC | Aledo, TX 76008 | Oil Operator | Dec 2025 |
| 1507 | WW Park 51 LLC | Claremore, OK 74017 | Oil Operator | Sep 2025 |
| 1508 | WX Company LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2017 |
| 1509 | Wy Basin Operating LLC | Dallas, TX 75206 | Oil & Gas Operator | Aug 2025 |
| 1510 | Wy Woodland Operating, LLC | Covington, TX 76636 | Oil & Gas Operator | Dec 2025 |
| 1511 | Wyant & O'Keefe | Santa Fe, NM 87501 | Oil & Gas Operator | May 2006 |
| 1512 | Wyant Exploration Co | Pomeroy, OH 45769 | Oil & Gas Operator | Dec 2024 |
| 1513 | Wyatt Permian, LLC | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Dec 2025 |
| 1514 | Wyatt Petroleum Corporation | Evergreen, CO 80437 | Gas Operator | Jul 2002 |
| 1515 | Wyatt Rick | Pawhuska, OK 74056 | Oil & Gas Operator | Feb 2006 |
| 1516 | Wyatt'S Oil Corporation | | Oil & Gas Operator | Aug 2025 |
| 1517 | Wyble L. Ollie | | Oil & Gas Operator | Dec 1988 |
| 1518 | Wychgram Daniel C | Thermopolis, WY 82443 | Oil Operator | Feb 2001 |
| 1519 | Wyckoff Gas Storage Company, LLC | | Gas Operator | Dec 2006 |
| 1520 | Wyco Oil & Gas LLC | Odessa, TX 79766 | Oil & Gas Operator | Jan 2024 |
| 1521 | Wykoma Oil Incor | | Oil & Gas Operator | Jul 1990 |
| 1522 | Wylee Petroleum Corporation | | Oil & Gas Operator | Dec 1984 |
| 1523 | Wylie Bros. Prod. & DRGL. Co,Inc | Baird, TX 79504 | Oil & Gas Operator | Dec 2025 |
| 1524 | Wylie Henry C | Ratliff City, OK 73481-0102 | Oil Operator | May 2020 |
| 1525 | Wylie, Fred, Jr. | Moran, TX 76464 | Oil & Gas Operator | Oct 2022 |
| 1526 | Wyllys, John A. & Joyce E. | Randolph, NY 14772 | Gas Operator | Dec 2024 |
| 1527 | Wyman* Louis M Dba Wyman Inc | | Oil & Gas Operator | Oct 2025 |
| 1528 | Wynco Energy, Inc. | Spring, TX 77393 | Oil & Gas Operator | Dec 2025 |
| 1529 | Wynn Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1998 |
| 1530 | Wynn-Crosby Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 1531 | Wynn-Crosby Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 1532 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 1533 | Wynne Petroleum Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 1997 |
| 1534 | Wyoil Corp | Buffalo, WY 82834 | Oil Operator | Aug 2025 |
| 1535 | Wyoming Diamond A LLC | Cheyenne, WY 82007 | Gas Operator | Dec 2025 |
| 1536 | Wyoming Energy Partners LLC | | Oil Operator | Oct 2025 |
| 1537 | Wyoming Mineral Exploration LLC | Casper, WY 82602 | Oil Operator | Dec 2006 |
| 1538 | Wyoming Oil & Minerals Inc | Casper, WY 82601 | Oil & Gas Operator | Jun 2001 |
| 1539 | Wyoming Resources Corporation | Rapid City, SD 57702 | Oil & Gas Operator | Oct 2018 |
| 1540 | Wyoming Western Oil | Pine Bluffs, WY 82082 | Oil Operator | Sep 2019 |
| 1541 | Wytex Production Corporation | Fort Smith, AR 72903 | Oil & Gas Operator | Sep 2025 |