| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Oct 2025 |
| 2 | Kennedy George C | Upton, WY 82730 | Oil & Gas Operator | Oct 2018 |
| 3 | Kennedy Oil | Gillette, WY 82716 | Oil & Gas Operator | Aug 2025 |
| 4 | Kerry Petroleum Co Inc | Midland, TX 79708 | Oil & Gas Operator | Jun 2010 |
| 5 | Kiesling Oil Company | Osage, WY 82723 | Oil & Gas Operator | Oct 2007 |
| 6 | Kings X Oil Company LLC | Gillette, WY 82717 | Oil Operator | Aug 2016 |
| 7 | Kissack Water & Oil Service Inc | Rozet, WY 82727 | Oil & Gas Operator | Aug 2025 |