| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Ka-Lyn Oil & Gas, Inc. | Oil & Gas Operator | Jul 1990 | |
| 2 | Kadane & Sons | Oil & Gas Operator | May 1978 | |
| 3 | Kaiser Operating, LLC | Oil & Gas Operator | Aug 2025 | |
| 4 | Kay Lease Service | Oil Operator | Feb 1981 | |
| 5 | Kay Operating Co. | Oil Operator | May 1982 | |
| 6 | Kay-Lyn Petroleum Co. | Oil & Gas Operator | Oct 1989 | |
| 7 | KCP Of MS Inc | Oil & Gas Operator | Jan 1991 | |
| 8 | Kelley Industries Inc | Waynesboro, MS 39367 | Oil & Gas Operator | Jul 2005 |
| 9 | Kelly Oil Co Inc | Oil & Gas Operator | Sep 2013 | |
| 10 | Kelso Casing Pulling Of MS Inc | Oil & Gas Operator | Dec 1993 | |
| 11 | Kem Energy Us ,LLC | Oil & Gas Operator | Dec 2023 | |
| 12 | Kepco Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2025 |
| 13 | KFG Petroleum Corporation | Oil & Gas Operator | Aug 2025 | |
| 14 | Kinetic Energy Co., Inc. | Oil & Gas Operator | Jan 1992 | |
| 15 | Kingston Operating Company | Oil & Gas Operator | Oct 2009 | |
| 16 | Kingwood Energy, LLC | Oil Operator | Feb 2025 | |
| 17 | Knight, Wilbur H. Et Al | Oil & Gas Operator | Jul 1991 |