Oil & Gas Companies in Converse County, WY
| Company Name | Company Location | Company Type | Most Recent Production |
| 401 | Winco Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
| 402 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 403 | Wold Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2022 |
| 404 | Wold Oil Properties Inc | Denver, CO 80203 | Oil & Gas Operator | Feb 2018 |
| 405 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 406 | WPX Energy Rocky Mountain LLC | Tulsa, OK 74101 | Oil & Gas Operator | Oct 2025 |
| 407 | WRC Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Oct 2025 |
| 408 | Wyoil Corp | Buffalo, WY 82834 | Oil Operator | Aug 2025 |
| 409 | Wyoming Mineral Exploration LLC | Casper, WY 82602 | Oil Operator | Dec 2006 |
| 410 | Wyoming Oil & Minerals Inc | Casper, WY 82601 | Oil & Gas Operator | Jun 2001 |
| 411 | Xoil Inc | Aurora, CO 80016 | Oil & Gas Operator | Jul 2023 |
| 412 | XPR Wyoming LLC | | Oil & Gas Operator | Sep 2025 |
| 413 | Young Marshall R Oil Co | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2011 |
Production numbers shown above are only for Converse County, WY and for the production period listed.