| 1 | Cities Service Oil Co. | Lafayette, LA 70501 | Oil & Gas Operator | Dec 1986 |
| 2 | Craft Petroleum Company, Inc. Et Al | Canton, MS 39046-5344 | Oil & Gas Operator | Mar 1997 |
| 3 | D C Goff Operating Co | Fayetteville, AR 72702 | Oil Operator | Dec 2007 |
| 4 | Dependable Oil & Gas Production, LLC | Houston, TX 77057 | Oil Operator | Oct 2010 |
| 5 | Hughes Eastern Corporation | Ridgeland, MS 39157 | Oil & Gas Operator | Jul 2018 |
| 6 | McGowan Working Partners, Inc. | Jackson, MS 39296-5809 | Oil & Gas Operator | Oct 2018 |
| 7 | Midco Energy, Inc. | Wichita, KS 67207 | Oil & Gas Operator | Dec 1992 |
| 8 | Mississippi Resources, LLC | Metairie, LA 70002 | Oil & Gas Operator | Jul 2018 |
| 9 | Osyka Permian, LLC | Houston, TX 77079 | Oil & Gas Operator | Oct 2018 |
| 10 | Palmer Petroleum, Inc. | Shreveport, LA 71101-3017 | Oil & Gas Operator | Oct 2018 |
| 11 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Jul 2018 |
| 12 | Poly O. Energy, Inc. | Houston, TX 77252-2127 | Oil & Gas Operator | Sep 2010 |
| 13 | Quantum Resources Management, LLC | Houston, TX 77010 | Oil & Gas Operator | Jul 2018 |
| 14 | Shell Oil Co. -Nola | New Orleans, LA 70160 | Oil & Gas Operator | Jun 2000 |
| 15 | Smith Operating & Management Co. | Shreveport, LA 71161 | Oil & Gas Operator | Aug 2018 |
| 16 | Spooner Petroleum Company | Ridgeland, MS 39157 | Oil & Gas Operator | Jul 2018 |
| 17 | Texas Crude Expl Inc | Fort Worth, TX 76121-2389 | Oil & Gas Operator | May 1992 |
| 18 | Thomas A. Blanton | Hattiesburg, MS 39401 | Oil Operator | Jul 2018 |
| 19 | Tideway Oil Company, Inc. | Jackson, MS | Oil & Gas Operator | Jan 2000 |
| 20 | Tideway Oil Programs Inc | | Oil & Gas Operator | Mar 1985 |
| 21 | Venture Oil & Gas, Inc. | Laurel, MS 39440 | Oil & Gas Operator | Jul 2018 |