| 101 | Kingston Operating Company | | Oil & Gas Operator | Oct 2009 |
| 102 | L & B Oil Company Inc | Dallas, TX 75225 | Oil & Gas Operator | Mar 2025 |
| 103 | Lagniappe Petrole, LLC | | Oil & Gas Operator | Sep 2025 |
| 104 | Lawson Engineering, Inc. | | Oil & Gas Operator | Dec 1984 |
| 105 | Liberty Southern Energy LLC | | Oil & Gas Operator | Jan 2014 |
| 106 | Llog Exploration Company, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 107 | Llog Production Company | Metairie, LA 70005 | Oil & Gas Operator | Nov 2025 |
| 108 | LPB Oil Co. | | Oil & Gas Operator | Apr 1991 |
| 109 | Mammoth Service Group, LLC | | Oil & Gas Operator | Nov 2025 |
| 110 | Manchester Oil Co | | Oil Operator | Jan 2000 |
| 111 | Marlin Exploration, LLC | | Oil & Gas Operator | Nov 2025 |
| 112 | McGoldrick Oil Company | Shreveport, LA 71129 | Oil & Gas Operator | Jul 2020 |
| 113 | McGowan Working Partners, Inc. | Jackson, MS 39296 | Oil & Gas Operator | Feb 2026 |
| 114 | Meason Operating Company | Natchez, MS 39121 | Oil & Gas Operator | Dec 2011 |
| 115 | Meng Oper & Expl Co | | Oil & Gas Operator | Dec 1989 |
| 116 | Meyer, Ruskin H. Et Al | | Oil Operator | Oct 1980 |
| 117 | Midroc Oil Company Et Al | | Oil Operator | Nov 1984 |
| 118 | Midroc Operating Company | | Oil & Gas Operator | Apr 2013 |
| 119 | Miss-Lou Oil Producers Inc | | Oil & Gas Operator | Dec 1998 |
| 120 | Morrow Oil & Gas Co. | Terry, MS 39170 | Oil & Gas Operator | Dec 2025 |
| 121 | MT. Crescent Operating Company, LLC | | Oil & Gas Operator | Dec 2025 |
| 122 | Natchez Pipe & Equip. Co., Inc | | Oil Operator | Nov 1981 |
| 123 | Nevanen Energy, Inc. | | Oil & Gas Operator | Dec 2022 |
| 124 | New & Brasher | | Oil Operator | Mar 1982 |
| 125 | New York Petroleum Corp. | | Oil & Gas Operator | Nov 1982 |
| 126 | O'Malley Production Co Inc. | | Oil & Gas Operator | Mar 1988 |
| 127 | Ogden Oil Co., Inc. | | Oil Operator | May 1981 |
| 128 | Oilwell Acquisition Co | | Oil & Gas Operator | Jun 1999 |
| 129 | Oryx Energy Company | Dallas, TX 75221 | Oil & Gas Operator | May 2002 |
| 130 | Owl Creek Production Co., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2006 |
| 131 | Par-Co Drilling Inc. | | Oil Operator | Dec 2023 |
| 132 | Paradigm Energy-Mississippi, LLC | | Oil Operator | Nov 2025 |
| 133 | Pennzoil Expl & Prod Co -TX | | Oil & Gas Operator | May 1993 |
| 134 | Petra, Inc. | | Oil & Gas Operator | Apr 1987 |
| 135 | Petroleum Development LLC | | Oil Operator | Jul 2018 |
| 136 | PF Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2003 |
| 137 | Pistol Ridge Partners, LLC | | Oil & Gas Operator | Nov 2025 |
| 138 | Pita Oil & Gas, LLC | | Oil Operator | Jul 2004 |
| 139 | Pledger Operating Co. Inc. | | Oil & Gas Operator | Dec 2025 |
| 140 | Pruet Production Co. | Jackson, MS 39201 | Oil & Gas Operator | Dec 2025 |
| 141 | R & C Petroleum, Inc. | Flint, TX 75762 | Oil & Gas Operator | Feb 2026 |
| 142 | R & H Oil & Gas Inc | | Oil & Gas Operator | Apr 1992 |
| 143 | R. I. P. Operating | | Oil Operator | Oct 1986 |
| 144 | Radiant Oil & Gas Operating Company, Inc | | Oil & Gas Operator | Aug 2015 |
| 145 | Radzewicz Expl. & DRLG. Corp. | | Oil & Gas Operator | Mar 2011 |
| 146 | Radzewicz Operating Corporation | | Oil & Gas Operator | Oct 2017 |
| 147 | Ringer Oil Co Inc | | Oil & Gas Operator | Aug 1989 |
| 148 | Rock Oil, Inc. | | Oil Operator | Nov 1989 |
| 149 | Roppolo Petroleum Co. | | Oil & Gas Operator | Jan 2000 |
| 150 | Santo Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 151 | Secan Oil Co Inc | | Oil & Gas Operator | May 1987 |
| 152 | Serio Energy Corporation | | Oil & Gas Operator | Jul 2000 |
| 153 | Serio Operating Co. | | Oil & Gas Operator | Mar 2007 |
| 154 | Serio-Punches Oil Co | | Oil Operator | Jan 2008 |
| 155 | Sidney E. Pinkston, Jr, Trustee | | Oil & Gas Operator | Apr 1980 |
| 156 | Smith Production Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 157 | Smith, Clyde H. Oper. Co., Inc. | | Oil & Gas Operator | Jun 1994 |
| 158 | Sooner Corp | | Oil & Gas Operator | Oct 1990 |
| 159 | Southern Hydrocarbons Inc | | Oil & Gas Operator | Jul 1989 |
| 160 | Southwest Mississippi Oil & Gas, LLC. | | Oil Operator | Dec 2025 |
| 161 | Standard Operating Inc | | Oil Operator | Jun 1986 |
| 162 | Streetman Inc | | Oil Operator | Oct 1987 |
| 163 | Sun Exploration And Production Co | | Oil & Gas Operator | Jan 1990 |
| 164 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Feb 2026 |
| 165 | Sunland Production Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2025 |
| 166 | T. O. Kimbrell, LLC | | Oil & Gas Operator | Dec 2025 |
| 167 | Tellus Operating Group, LLC | | Oil & Gas Operator | Nov 2025 |
| 168 | Temple Oil Co | | Oil & Gas Operator | Oct 1992 |
| 169 | Terry Sims & Associates, Inc. | | Oil Operator | Sep 2009 |
| 170 | Thunder Oil, LLC | | Oil & Gas Operator | Oct 1998 |
| 171 | Tilghman Operating, LLC. | | Oil & Gas Operator | Dec 2025 |
| 172 | Trendsetter Production Co, Inc | | Oil & Gas Operator | Jul 2008 |
| 173 | Tri-Quest Resources | | Oil & Gas Operator | Feb 1995 |
| 174 | Triad Oil & Gas Co Inc | | Oil & Gas Operator | Jun 1994 |
| 175 | Triangle Oil Producers Inc | | Oil & Gas Operator | Jun 1998 |
| 176 | Trident Oil & Gas Corp. | | Oil & Gas Operator | Sep 2000 |
| 177 | Txo Production Corp. | Ganado, TX 77962 | Oil & Gas Operator | Aug 2022 |
| 178 | Vicksburg Refining, Inc. -Vicksburg | | Oil Operator | Apr 1984 |
| 179 | Vines Operating, LLC | | Oil Operator | Jun 2017 |
| 180 | Vintage Petroleum | | Oil & Gas Operator | Feb 2003 |
| 181 | Vonco Of Mississippi, Inc. | | Oil Operator | Dec 2025 |
| 182 | W. E. O'Malley Inc. | | Oil & Gas Operator | Jun 1991 |
| 183 | W.I.F.T. Operating, LLC | | Oil & Gas Operator | Dec 2025 |
| 184 | Watchtower Petroleum, LLC | | Oil & Gas Operator | Jun 2025 |
| 185 | White River Operating LLC | Gilmer, TX 75644 | Oil & Gas Operator | Dec 2025 |
| 186 | Whitehead, Cecil | | Oil Operator | May 1997 |
| 187 | Wickham, R. R. | | Oil Operator | Jan 1980 |
| 188 | Wilcox Energy Company | | Oil & Gas Operator | Dec 2025 |
| 189 | Wilcox Operating Corporation | Shreveport, LA 71115 | Oil & Gas Operator | Feb 2026 |
| 190 | Wilcox Ventures, LLC | | Oil & Gas Operator | Dec 2025 |
| 191 | Williams Producing Co | | Oil & Gas Operator | Nov 2025 |
| 192 | Williams, Kenneth O. Jr | | Oil Operator | Nov 2006 |