| 101 | Etc Texas Pipeline, LTD. | Dallas, TX 75225 | Oil Operator | Sep 2023 |
| 102 | Fifty-Third Corporation | | Gas Operator | Jul 1994 |
| 103 | Fireside Oil And Gas, Inc. | West Monroe, LA 71294 | Oil & Gas Operator | Feb 2002 |
| 104 | Florida Exploration Co | Aurora, CO 80014 | Oil & Gas Operator | Sep 1989 |
| 105 | Foster-Brown Operations, Inc. | | Oil & Gas Operator | Apr 2003 |
| 106 | Four Star Development Corp. | | Oil & Gas Operator | Feb 2013 |
| 107 | Frank Spooner | | Oil & Gas Operator | Mar 1984 |
| 108 | Franks & Bass Et Al | | Oil & Gas Operator | Sep 1989 |
| 109 | Franks & Flynn Energy | | Oil & Gas Operator | Jun 1987 |
| 110 | Franks Petroleum Inc. | | Oil & Gas Operator | Nov 1994 |
| 111 | Franks Petroleum, Inc. Et Al | | Oil & Gas Operator | Oct 1989 |
| 112 | Fredonia Resources Inc. | Longview, TX 75606 | Oil & Gas Operator | Aug 2003 |
| 113 | G. R. Goodwill | | Oil & Gas Operator | Jun 1997 |
| 114 | Gas Development Corporation | Broken Arrow, OK 74012 | Oil & Gas Operator | Mar 2015 |
| 115 | Gas Exploration | | Gas Operator | Feb 2005 |
| 116 | Gas Masters Of America | | Oil & Gas Operator | Oct 1993 |
| 117 | Gas Masters Of America, Inc. | | Oil & Gas Operator | Nov 2024 |
| 118 | Gas Resources, Inc. | Southern Pine, NC 28387 | Oil & Gas Operator | Mar 2004 |
| 119 | Gas Resources, Limited | | Oil & Gas Operator | Dec 2024 |
| 120 | Gas Transportation Corporation | | Oil & Gas Operator | Aug 1995 |
| 121 | Gator Hawk Gas Co. | | Gas Operator | Dec 2024 |
| 122 | Gedco Oil & Gas, Inc. | | Gas Operator | May 1992 |
| 123 | Gemini Explorations, Inc. | | Oil & Gas Operator | Jan 2025 |
| 124 | Glenda Petroleum Corp. | | Gas Operator | Oct 1991 |
| 125 | Goodrich Oil Company | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2001 |
| 126 | Goodrich Petroleum Company | Houston, TX 77002 | Oil & Gas Operator | Feb 2022 |
| 127 | Got, Inc. | | Gas Operator | Jan 2002 |
| 128 | GPM, Inc. | | Oil & Gas Operator | Jun 1994 |
| 129 | Grecian Gas Company | | Gas Operator | Dec 2002 |
| 130 | Gulf South Pipeline Company, LLC | | Oil & Gas Operator | Jan 2025 |
| 131 | Gulf South Pipeline Company, LP | Houston, TX 77001 | Oil & Gas Operator | Dec 2020 |
| 132 | H. J. Bonner | | Oil & Gas Operator | Aug 1991 |
| 133 | Haddox Petroleum Corp | | Gas Operator | Dec 2010 |
| 134 | Hamilton Gas Co., Inc. | | Gas Operator | Mar 1999 |
| 135 | Harvey Broyles | | Oil & Gas Operator | May 2012 |
| 136 | Harvey Broyles & Munoco Co. | | Oil & Gas Operator | Jan 2002 |
| 137 | Herbst Resources, Inc. | Mandeville, LA 70448 | Oil & Gas Operator | Aug 2003 |
| 138 | Hibbard-Frost-Smith | | Oil & Gas Operator | Apr 1990 |
| 139 | Hilliard Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2009 |
| 140 | Inabnet Est., H. Inabnet, Agt. | | Gas Operator | Jul 2005 |
| 141 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Feb 2026 |
| 142 | Investment Trends Corp. | | Gas Operator | Mar 1988 |
| 143 | Island Petroleum, Inc. | | Gas Operator | Mar 1998 |
| 144 | J. H. Wilkins | | Gas Operator | Dec 2024 |
| 145 | J.R.W. Oil & Gas | | Gas Operator | Sep 2021 |
| 146 | Jae Exploration & Development | | Oil & Gas Operator | Sep 1993 |
| 147 | James A. Noe Et Al | | Gas Operator | Nov 1996 |
| 148 | JCB II Enterprises LLC | Perryton, TX 79070 | Oil & Gas Operator | Jun 2023 |
| 149 | Jenco Petroleum, Inc. | | Gas Operator | Aug 2005 |
| 150 | Jim V. Haddox | | Gas Operator | Dec 2010 |
| 151 | Joe G. Strahan | | Gas Operator | Oct 1983 |
| 152 | John H. McCarter, Jr. | | Gas Operator | Nov 1990 |
| 153 | Justiss Oil Co Inc-Munoco Co | | Oil & Gas Operator | Dec 2008 |
| 154 | Justiss Oil Company, Inc. | Jena, LA 71342 | Oil & Gas Operator | Nov 2025 |
| 155 | Justiss-Mears Oil Co. | | Oil & Gas Operator | Feb 1981 |
| 156 | Justiss-Mears Oil Co., Et Al | | Oil & Gas Operator | Feb 1981 |
| 157 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Feb 2026 |
| 158 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
| 159 | KCS Resources LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 160 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 161 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Sep 2025 |
| 162 | Kewanee Oil Company | Houston, TX 77001 | Oil & Gas Operator | Aug 1978 |
| 163 | Keystone Exploration, Inc | College Sta, TX 77845 | Oil & Gas Operator | Feb 2026 |
| 164 | Keystone Fuel Oil Co | | Gas Operator | Nov 1997 |
| 165 | Keystone Productions, LLC | | Gas Operator | Dec 2024 |
| 166 | Kmi Continental Off. Prod. Co. | | Oil & Gas Operator | Jan 1988 |
| 167 | Koch Gateway Pipeline Company | | Oil & Gas Operator | Feb 2001 |
| 168 | KWB Oil Property MGMT, Inc. | | Oil & Gas Operator | Mar 1983 |
| 169 | L. A. West | | Gas Operator | Feb 2000 |
| 170 | L. E. Hester | | Gas Operator | Oct 2004 |
| 171 | L. R. Resources II | | Oil & Gas Operator | Feb 1991 |
| 172 | La. Fete Oil & Gas, Inc. | | Oil & Gas Operator | May 1995 |
| 173 | Lahoma Gas Company | | Gas Operator | Dec 1980 |
| 174 | Lanmarc Resources | | Oil Operator | Dec 2003 |
| 175 | Laster Welding And Well Serv, Inc. | | Gas Operator | Jul 2020 |
| 176 | Lear Gas Transmission | | Oil Operator | Aug 1989 |
| 177 | Linn Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2017 |
| 178 | Linn Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2019 |
| 179 | Lock Arbor Production Co | | Gas Operator | Aug 1987 |
| 180 | Louisiana Gas Development Corp | | Oil & Gas Operator | Jan 2025 |
| 181 | Louisiana Gas Production Co | | Gas Operator | Dec 1996 |
| 182 | Louisiana Minerals, LTD. | Houston, TX 77024 | Oil & Gas Operator | Jul 1988 |
| 183 | Luffey Gas Corp. | | Gas Operator | Dec 2008 |
| 184 | Luffey-Stinson Gas Corporation | | Gas Operator | Sep 2018 |
| 185 | Lyons Petroleum, Inc. | | Oil & Gas Operator | Oct 1988 |
| 186 | M. H. Thomson | | Gas Operator | Dec 2014 |
| 187 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Dec 2025 |
| 188 | Mark L Shidler Inc | Houston, TX 77055 | Oil & Gas Operator | Dec 2025 |
| 189 | Maxus Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Jan 1995 |
| 190 | McCarter | | Gas Operator | Nov 1996 |
| 191 | McGoldrick Oil Company | Shreveport, LA 71129 | Oil & Gas Operator | Jul 2020 |
| 192 | McLain J. Forman | | Oil & Gas Operator | Mar 1988 |
| 193 | Melren Oil & Gas Expl., Inc. | | Gas Operator | Nov 1989 |
| 194 | Mid Louisiana Gas Company | | Oil & Gas Operator | Oct 2002 |
| 195 | Midroc Operating Company | | Oil & Gas Operator | Apr 2013 |
| 196 | Midway Production Co. | | Gas Operator | May 1990 |
| 197 | Midway Testing Company Inc | | Gas Operator | Mar 1984 |
| 198 | Mineral Ventures, Inc. | | Oil & Gas Operator | Dec 2024 |
| 199 | Mississippi River Transm. Corp | | Oil & Gas Operator | Sep 2002 |
| 200 | Mitchell Energy & Goodrich Oil | | Oil & Gas Operator | Feb 1985 |