| 1501 | Wykoma Oil Incor | | Oil & Gas Operator | Jul 1990 |
| 1502 | Wylee Petroleum Corporation | | Oil & Gas Operator | Dec 1984 |
| 1503 | Wylie Bros. Prod. & DRGL. Co,Inc | Baird, TX 79504 | Oil & Gas Operator | Jul 2026 |
| 1504 | Wylie Henry C | Ratliff City, OK 73481-0102 | Oil Operator | May 2020 |
| 1505 | Wylie, Fred, Jr. | Moran, TX 76464 | Oil & Gas Operator | Oct 2022 |
| 1506 | Wyllys, John A. & Joyce E. | Randolph, NY 14772 | Gas Operator | Dec 2025 |
| 1507 | Wyman* Louis M Dba Wyman Inc | | Oil & Gas Operator | Apr 2026 |
| 1508 | Wynco Energy, Inc. | Spring, TX 77393 | Oil & Gas Operator | Jul 2026 |
| 1509 | Wynn Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1998 |
| 1510 | Wynn-Crosby Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 1511 | Wynn-Crosby Operating LP | Dallas, TX 75201 | Oil & Gas Operator | Mar 2026 |
| 1512 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Jul 2026 |
| 1513 | Wynne Petroleum Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 1997 |
| 1514 | Wyoil Corp | Buffalo, WY 82834 | Oil Operator | Aug 2025 |
| 1515 | Wyoming Diamond A LLC | Cheyenne, WY 82007 | Gas Operator | Jul 2026 |
| 1516 | Wyoming Energy Partners LLC | | Oil Operator | May 2026 |
| 1517 | Wyoming Mineral Exploration LLC | Casper, WY 82602 | Oil Operator | Dec 2006 |
| 1518 | Wyoming Oil & Minerals Inc | Casper, WY 82601 | Oil & Gas Operator | Jun 2001 |
| 1519 | Wyoming Resources Corporation | Rapid City, SD 57702 | Oil & Gas Operator | Oct 2018 |
| 1520 | Wyoming Western Oil | Pine Bluffs, WY 82082 | Oil Operator | Sep 2019 |
| 1521 | Wytex Production Corporation | Fort Smith, AR 72903 | Oil & Gas Operator | Mar 2026 |