| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | K & S Rentals | Oil & Gas Operator | May 2013 | |
| 2 | Kalda Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 1994 |
| 3 | Kanpetro, Inc. | Oil Operator | May 1991 | |
| 4 | KCS Resources LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 5 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 6 | Kelley Oil & Sugar Creek Prod. | Oil & Gas Operator | Oct 1992 | |
| 7 | Kelley Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Jan 2002 |
| 8 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Feb 2026 |
| 9 | Key Production Company, Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2026 |