| 1 | Ace Energy LLC | Leawood, KS 66211 | Oil & Gas Operator | Jun 2025 |
| 2 | Aldridge Operating Co., LLC | | Oil & Gas Operator | Aug 2019 |
| 3 | Alpine Well Service Inc | | Oil & Gas Operator | Dec 2023 |
| 4 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 5 | B & M Resources, Inc. | | Oil Operator | Apr 1997 |
| 6 | B. H. T. Production, LLC | | Oil & Gas Operator | Apr 2010 |
| 7 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 8 | Belden & Blake | | Oil & Gas Operator | Feb 1988 |
| 9 | Belle Oil, Inc. | | Oil & Gas Operator | Jul 2025 |
| 10 | Betsy Production Company, Inc. | Magnolia, AR 71753 | Oil & Gas Operator | Jul 2025 |
| 11 | Black Jack Oil Co Inc | Holliday, TX 76366 | Oil & Gas Operator | Jun 2025 |
| 12 | Blue Valley Petroleum, LTD. | | Oil Operator | Jun 1991 |
| 13 | Bluff City Pipe & Supply Co. | | Oil Operator | Jan 1987 |
| 14 | Breland, Leon | | Oil & Gas Operator | Feb 1991 |
| 15 | Burnsed Oil Co., Inc. | | Oil & Gas Operator | Jun 2025 |
| 16 | Callon Oil Co, Cambell | | Oil & Gas Operator | Oct 1984 |
| 17 | Callon Petroleum Company | Natchez, MS 39120 | Oil & Gas Operator | Jan 2000 |
| 18 | Campbell Co. Et Al | | Oil Operator | Apr 1986 |
| 19 | Cardneaux Inc. | | Oil & Gas Operator | Aug 2009 |
| 20 | Castor Exploration, Inc. | | Oil & Gas Operator | Dec 1991 |
| 21 | Ceo Operating, Co. | | Oil & Gas Operator | Dec 1999 |
| 22 | Christian Well Service | | Oil & Gas Operator | May 1987 |
| 23 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Oct 2025 |
| 24 | Clark, Noel D. Et Al | | Oil & Gas Operator | Mar 1994 |
| 25 | Crain & Dore' | | Oil & Gas Operator | May 1986 |
| 26 | Crook-Woodlin Expl.,Inc. | | Oil Operator | Feb 1988 |
| 27 | D & D Exploration Co. Et Al | | Oil Operator | Feb 1988 |
| 28 | David New Operating Co., Inc. | | Oil & Gas Operator | Feb 1999 |
| 29 | Deepwell Co | | Oil Operator | Jul 1989 |
| 30 | Del Oil & Gas Corp | | Oil Operator | Jul 1981 |
| 31 | Delta Petroleum Inc | Houston, TX 77269-1007 | Oil & Gas Operator | May 2009 |
| 32 | Denbury Onshore, LLC | Plano, TX 75024 | Oil & Gas Operator | Oct 2025 |
| 33 | Dixie Operating Company | Spring, TX 77379 | Oil & Gas Operator | Dec 2002 |
| 34 | Durango Operating, LLC | Madison, MS 39110 | Oil & Gas Operator | Jul 2025 |
| 35 | Easom, Dave Production Co Inc | | Oil & Gas Operator | Nov 1998 |
| 36 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Jun 2025 |
| 37 | F & H Production Service | | Oil & Gas Operator | Apr 1987 |
| 38 | Francis, Joseph | | Oil Operator | Dec 1982 |
| 39 | Franklin Properties LLC | | Oil & Gas Operator | Aug 1998 |
| 40 | Furrh Inc. | | Oil Operator | Apr 1994 |
| 41 | George Tarver Operating Co., LLC | | Oil & Gas Operator | Jun 2025 |
| 42 | Goldsberry Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 43 | GRM LLC | | Oil & Gas Operator | Jun 2021 |
| 44 | H. & N. Operating Co., Inc. | | Oil & Gas Operator | Oct 1997 |
| 45 | Hayes & Assoc Inc | | Oil & Gas Operator | Oct 1991 |
| 46 | Herlihy, John D. | | Oil & Gas Operator | May 1997 |
| 47 | Hilcorp Energy Company | Houston, TX 77208 | Oil & Gas Operator | Oct 2025 |
| 48 | Hollingsworth & Assoc | | Oil Operator | Feb 1987 |
| 49 | Interstate Producing Ser Inc | | Oil & Gas Operator | May 1986 |
| 50 | Jones & Assoc | | Oil & Gas Operator | Sep 1996 |
| 51 | Kaiser Operating, LLC | | Oil & Gas Operator | Jul 2025 |
| 52 | Kay Operating Co. | | Oil Operator | May 1982 |
| 53 | Kepco Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 54 | KFG Petroleum Corporation | | Oil & Gas Operator | Jul 2025 |
| 55 | Lahoma Operating, Inc. | | Oil & Gas Operator | Jul 2025 |
| 56 | Liberty Operating Company,LLC | | Oil & Gas Operator | Jul 2025 |
| 57 | Libra Oil Co., Inc. | | Oil & Gas Operator | Nov 1986 |
| 58 | Marlin Exploration, LLC | | Oil & Gas Operator | Jul 2025 |
| 59 | McGowan Working Partners, Inc. | Jackson, MS 39296 | Oil & Gas Operator | Oct 2025 |
| 60 | Meason Operating Company | Natchez, MS 39121 | Oil & Gas Operator | Dec 2011 |
| 61 | Miss-Lou Operating LLC | | Oil & Gas Operator | Jul 2025 |
| 62 | Mitchell And R. E. Mitchel | | Oil Operator | Feb 2000 |
| 63 | Mitchell Resources, Inc. | Addison, TX 75001 | Oil & Gas Operator | Aug 2003 |
| 64 | Moon-Hines-Tigrett Operating Co., Inc. | | Oil & Gas Operator | Jun 2025 |
| 65 | Natchez Operating, LLC | | Oil & Gas Operator | Nov 2023 |
| 66 | Nevanen Energy, Inc. | | Oil & Gas Operator | Dec 2022 |
| 67 | O'Malley Production Co. Inc. | | Oil & Gas Operator | Mar 1988 |
| 68 | Ogden Oil Co., Inc. | | Oil Operator | May 1981 |
| 69 | Owco Production Co., Inc. | | Oil Operator | Aug 1997 |
| 70 | Palmer Petroleum Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Jun 2025 |
| 71 | Radiant Oil & Gas Operating Company, Inc | | Oil & Gas Operator | Aug 2015 |
| 72 | Radzewicz Operating Corp. | | Oil & Gas Operator | Oct 2017 |
| 73 | Ram Petroleum, LLC | Tylertown, MS 39667 | Oil & Gas Operator | Jul 2025 |
| 74 | Remora Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Oct 2025 |
| 75 | Rosson Et Al | | Oil Operator | Aug 1983 |
| 76 | Seagull Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2025 |
| 77 | Secan Oil Co., Inc. | | Oil & Gas Operator | May 1987 |
| 78 | Serio Energy Corporation | | Oil & Gas Operator | Jul 2000 |
| 79 | Serio Operating Company | | Oil & Gas Operator | Mar 2007 |
| 80 | Serio-Punches Oil Co | | Oil Operator | Jan 2008 |
| 81 | Shield Resources Inc | | Oil & Gas Operator | Nov 1987 |
| 82 | Stratco Operating Co Inc | Austin, TX 78701 | Oil & Gas Operator | Oct 2025 |
| 83 | Stroud Petroleum, Inc. | Shreveport, LA 71162 | Oil & Gas Operator | Oct 2025 |
| 84 | Sun Exploration-Production Co. | | Oil & Gas Operator | Jan 1990 |
| 85 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Oct 2025 |
| 86 | T. O. Kimbrell, LLC | | Oil & Gas Operator | Jul 2025 |
| 87 | Thunder Oil, LLC | | Oil & Gas Operator | Oct 1998 |
| 88 | Triangle Oil Producers, Inc. | | Oil & Gas Operator | Jun 1998 |
| 89 | Trident Oil And Gas Corp. | | Oil & Gas Operator | Sep 2000 |
| 90 | Trio Operating Company, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2006 |
| 91 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 92 | Vicksburg Refining, Inc. -Jackson | | Oil Operator | Apr 1984 |
| 93 | Waller Brothers, Inc. | | Oil & Gas Operator | Jul 2004 |
| 94 | Watchtower Petroleum, LLC | | Oil & Gas Operator | Jun 2025 |
| 95 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Oct 2025 |
| 96 | Wilcox Energy Company | | Oil & Gas Operator | Jul 2025 |
| 97 | Williams Producing Co | | Oil & Gas Operator | May 2025 |