| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Oct 2025 |
| 2 | Kaneb Oil & Gas | Oil & Gas Operator | Oct 1987 | |
| 3 | KCS Mountain Resources Inc | Manderson, WY 82432 | Oil & Gas Operator | Nov 2006 |
| 4 | Kentex Worland LLC | Dallas, TX 75225 | Oil & Gas Operator | Aug 2025 |
| 5 | Kirkwood W C | Casper, WY 82602 | Oil & Gas Operator | May 2005 |
| 6 | Koch Exploration Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
| 7 | Koch Production Company | Worland, WY 82401 | Oil & Gas Operator | Dec 2002 |