Oil & Gas Companies in Johnson County, WY
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Warren Enterprises Inc | Gillette, WY 82718 | Oil Operator | Dec 2022 |
| 2 | Webb Resources Inc | | Oil & Gas Operator | Dec 1985 |
| 3 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | Aug 2025 |
| 4 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
| 5 | Wexpro Company | Rock Springs, WY 82902-0458 | Oil & Gas Operator | Jul 2025 |
| 6 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 7 | Wichita River Oil Corporation | Englewood, CO 80111 | Oil & Gas Operator | Apr 2009 |
| 8 | Windsor Energy Group LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Aug 2021 |
| 9 | Wold Energy Partners LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2022 |
| 10 | Wold Oil Properties Inc | Denver, CO 80203 | Oil & Gas Operator | Feb 2018 |
| 11 | Wolverine Operations LLC | Buffalo, WY 82834 | Gas Operator | Oct 2008 |
| 12 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
| 13 | WPX Energy Rocky Mountain LLC | Tulsa, OK 74101 | Oil & Gas Operator | Jul 2025 |
| 14 | WRC Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jul 2025 |
| 15 | Wyoil Corp | Buffalo, WY 82834 | Oil Operator | Aug 2025 |
Production numbers shown above are only for Johnson County, WY and for the production period listed.