Oil & Gas Companies in Uintah County, UT
| Company Name | Company Location | Company Type | Most Recent Production |
| 301 | W C Investments LTD | Salt Lake City, UT 84120 | Oil & Gas Operator | Aug 2000 |
| 302 | Wainoco Oil & Gas Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2005 |
| 303 | Walker Energy Group | Houston, TX 77215-1089 | Oil & Gas Operator | Jun 1992 |
| 304 | Wapiti Operating, LLC | Houston, TX 77043 | Oil & Gas Operator | Oct 2025 |
| 305 | Warren American Oil Co | Tulsa, OK 74147 | Oil & Gas Operator | Jul 2025 |
| 306 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
| 307 | Weststar Exploration Co | Houston, TX 77027 | Oil & Gas Operator | Sep 2025 |
| 308 | Wexpro Company | Rock Springs, WY 82902-0458 | Oil & Gas Operator | Jul 2025 |
| 309 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 310 | Wildrose Resources Corp | Englewood, CO 80110-6007 | Oil & Gas Operator | Mar 2004 |
| 311 | Willard Pease Drilling Co | Grand Junction, CO 81501 | Oil & Gas Operator | Dec 1983 |
| 312 | Wind River Resources Corp | Park City, UT 84098 | Oil & Gas Operator | Jan 2020 |
| 313 | Wold Oil Properties Inc | Denver, CO 80203 | Oil & Gas Operator | Feb 2018 |
| 314 | XCL Assetco, LLC | Houston, TX 77007 | Oil & Gas Operator | Jul 2025 |
| 315 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for Uintah County, UT and for the production period listed.