| 12101 | Gulf Production Company, Inc. | | Oil & Gas Operator | Dec 2024 |
| 12102 | Gulf Production Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |
| 12103 | Gulf Refining Co | | Oil Operator | Dec 2006 |
| 12104 | Gulf Shore Petro. Oper. Co., Inc | Woodland HLS, CA 91367 | Oil & Gas Operator | Apr 1998 |
| 12105 | Gulf South Minerals, Inc. | | Oil Operator | Nov 1993 |
| 12106 | Gulf South Oil & Gas, Inc. | | Oil & Gas Operator | Feb 1990 |
| 12107 | Gulf South Operators, Inc. | New Orleans, LA 70130 | Oil & Gas Operator | Oct 2015 |
| 12108 | Gulf South Pipeline Company, LLC | | Oil & Gas Operator | Jan 2025 |
| 12109 | Gulf South Pipeline Company, LP | Houston, TX 77001 | Oil & Gas Operator | Dec 2020 |
| 12110 | Gulf States Exploration Co. | | Oil & Gas Operator | Dec 1983 |
| 12111 | Gulf States Petro. Corp. | Dallas, TX 75202 | Oil & Gas Operator | Apr 2006 |
| 12112 | Gulf States Pipeline Corp. | | Oil & Gas Operator | May 2003 |
| 12113 | Gulf States Production Company | Houston, TX 77027 | Oil & Gas Operator | Aug 1997 |
| 12114 | Gulf Tech Energy LLC | | Oil & Gas Operator | Dec 2002 |
| 12115 | Gulf Tide Oil Company, The | Houston, TX 77008 | Oil & Gas Operator | Jun 1999 |
| 12116 | Gulfland Resources, Inc. | | Oil & Gas Operator | Aug 1996 |
| 12117 | Gulfport Appalachia LLC | Oklahoma City, OK 73114-2640 | Oil & Gas Operator | Sep 2025 |
| 12118 | Gulfport Energy Corporation | Oklahoma City, OK 73114-5003 | Oil & Gas Operator | Nov 2025 |
| 12119 | Gulfport Midcon LLC | Oklahoma City, OK 73114-8132 | Oil & Gas Operator | Jan 2026 |
| 12120 | Gulfport Oil & Gas Inc. | Gulfport, MS 39501 | Oil & Gas Operator | Mar 2026 |
| 12121 | Gulfstar Energy Group, LLC | Caneyville, KY 42721 | Oil & Gas Operator | Dec 2024 |
| 12122 | Gulfstar Properties, Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Mar 2026 |
| 12123 | Gulfstream Of Louisiana, Inc. | | Oil & Gas Operator | Jan 1996 |
| 12124 | Gulfstream Petroleum Corp | | Oil & Gas Operator | Feb 2002 |
| 12125 | Gulfstream Resources, Inc. | | Oil & Gas Operator | May 1996 |
| 12126 | Gulftex Energy II, LP | San Antonio, TX 78258 | Oil & Gas Operator | Jan 2013 |
| 12127 | Gulftex Energy III, LP | San Antonio, TX 78257 | Oil & Gas Operator | Jul 2018 |
| 12128 | Gulftex Energy IV, LP | San Antonio, TX 78257 | Oil & Gas Operator | Jul 2019 |
| 12129 | Gulftex Energy, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Mar 2026 |
| 12130 | Gulftex Ipx, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Mar 2019 |
| 12131 | Gulftex Operating Inc | Plano, TX 75093 | Oil & Gas Operator | Mar 2026 |
| 12132 | Gulick Drilling , Inc. | Eureka, KS 67045 | Oil Operator | Sep 2025 |
| 12133 | Gumfory, Shawn | Iola, KS 66749 | Oil Operator | Jul 1998 |
| 12134 | Gungoll Carl E Estate | Oklahoma City, OK 73154-0466 | Oil & Gas Operator | Aug 2000 |
| 12135 | Gungoll Henry H. Associates | Enid, OK 73701 | Oil & Gas Operator | Jun 2025 |
| 12136 | Gungoll, Carl E. Exploration LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2026 |
| 12137 | Gunkel Charley Wayne Rev Inter VIvos Trust | Schulter, OK 74460-0010 | Gas Operator | Dec 2015 |
| 12138 | Gunn And Divers | Mount Zion, WV 26151 | Oil & Gas Operator | Dec 2021 |
| 12139 | Gunn Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2026 |
| 12140 | Gunn, P. P., Estate Heirs | | Oil & Gas Operator | Dec 2008 |
| 12141 | Gunner Energy Corp. | Troy, MI 48083 | Oil & Gas Operator | Jun 1995 |
| 12142 | Gunner Oil Company | Wichita, KS 67205 | Oil & Gas Operator | Sep 2025 |
| 12143 | Gunnison Energy LLC | | Oil & Gas Operator | Dec 2025 |
| 12144 | Gunsight Energy Inc | Floydada, TX 79235-2521 | Oil Operator | Jun 2009 |
| 12145 | Gunsight Supply Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Aug 2003 |
| 12146 | Gunsmoke Energy Company | Fort Worth, TX 76132 | Oil & Gas Operator | May 2012 |
| 12147 | Gunter Jim | Springer, OK 73458 | Oil Operator | Dec 2025 |
| 12148 | Gunvor USA LLC | Houston, TX 77002 | Oil Operator | Apr 2007 |
| 12149 | Gupton Gas Co. | Fort Worth, TX 76107 | Oil & Gas Operator | Aug 1994 |
| 12150 | Gurley Oil Co | Kirtland, NM 87417 | Oil Operator | Dec 1995 |
| 12151 | Gurnee Gas Co., L.L.C. | | Gas Operator | Jul 2001 |
| 12152 | Gus Jones Cable Tool Service, LLC | Elk City, KS 67344 | Oil Operator | Aug 2025 |
| 12153 | Gusher Oil | | Oil Operator | Jul 2004 |
| 12154 | Gustafson Brothers Inc. | | Oil & Gas Operator | Dec 2002 |
| 12155 | Gustafson Family Trust 2 | Frewsburg, NY 14738 | Gas Operator | Dec 2024 |
| 12156 | Gustafson, Alan | Falconer, NY 14733 | Gas Operator | Dec 2024 |
| 12157 | Gustison Steven | | Oil Operator | Feb 1985 |
| 12158 | Guthrie Clare L And June | | Oil Operator | Nov 2021 |
| 12159 | Guthrie Oil Co | | Oil Operator | Nov 1994 |
| 12160 | Guthrie Oil Comp | | Oil & Gas Operator | Dec 1994 |
| 12161 | Guthrie, A. K. Operating Co. | Big Spring, TX 79720 | Oil & Gas Operator | Mar 1996 |
| 12162 | Guyan Gas Producers, Inc. | Oceana, WV 24870 | Gas Operator | Dec 2018 |
| 12163 | Guynes And Backus | | Oil Operator | Nov 1999 |
| 12164 | Guys Oil & Gas LTD Co | Hobbs, NM 88241 | Oil & Gas Operator | Dec 2019 |
| 12165 | Guzman Energy Inc. | | Oil & Gas Operator | Dec 2025 |
| 12166 | GVC Ventures | Mineola, TX 75773 | Oil & Gas Operator | Jan 2026 |
| 12167 | GW Energy, Inc. | Midland, TX 79710 | Oil Operator | Mar 2026 |
| 12168 | GW Investments, LLC | Mustang, OK 73064 | Oil Operator | Dec 2025 |
| 12169 | GW Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1993 |
| 12170 | GWB Oil & Gas LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 12171 | Gwet, Inc. | Merkel, TX 79536 | Oil Operator | Mar 2026 |
| 12172 | Gwitt, Edward J. | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 12173 | GWM Operating Company, LLC | Sugar Land, TX 77496 | Oil & Gas Operator | Mar 2026 |
| 12174 | Gyb-Britlind Oil, LLC | | Oil & Gas Operator | Jun 2016 |
| 12175 | Gypsy Exploration LLC | Oklahoma City, OK 73123-1323 | Oil & Gas Operator | Dec 2014 |
| 12176 | Gypsy Highview Gathering System, Inc. | Cut Bank, MT 59427-0250 | Oil & Gas Operator | Oct 2000 |
| 12177 | Gypsy Oil Co. | Austin, TX 78720 | Oil & Gas Operator | Jul 2017 |
| 12178 | Gypsyglenn Oil Company LLC | Tulsa, OK 74119-4809 | Oil & Gas Operator | Jan 2026 |
| 12179 | Gyro Petroleum | Amarillo, TX 79120 | Oil & Gas Operator | Mar 2026 |
| 12180 | H & A Drilling | Newark, OH 43056 | Oil Operator | Dec 2024 |
| 12181 | H & B Petroleum Corp. | Hutchinson, KS 67504 | Oil & Gas Operator | Sep 2025 |
| 12182 | H & B Production | | Oil Operator | Mar 1995 |
| 12183 | H & B Well Service, Inc. | | Oil & Gas Operator | Aug 1993 |
| 12184 | H & C Oil Operat | | Oil & Gas Operator | Dec 1996 |
| 12185 | H & C Oil Operating Inc. | Plainville, KS 67663 | Oil & Gas Operator | Sep 2025 |
| 12186 | H & D Drilling Co Inc | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2024 |
| 12187 | H & D Exploration LLC | Hoisington, KS 67544 | Oil & Gas Operator | Sep 2025 |
| 12188 | H & D Operating Company | Refugio, TX 78377 | Oil & Gas Operator | May 2015 |
| 12189 | H & H & S Oil Producers | | Oil Operator | Jan 2025 |
| 12190 | H & H Compressors, Inc. | | Oil & Gas Operator | Oct 1997 |
| 12191 | H & H Drilling Company | Davis, OK 73030-2703 | Oil & Gas Operator | May 2014 |
| 12192 | H & H Energy Inc | Tuttle, OK 73089 | Oil Operator | May 2001 |
| 12193 | H & H Energy Of Ohio LTD | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 12194 | H & H Exploration | Tulsa, OK 74132 | Oil & Gas Operator | Jan 2006 |
| 12195 | H & H Oil Co. #1 | | Oil Operator | Jan 2025 |
| 12196 | H & H Oil Compan | | Oil & Gas Operator | Aug 1995 |
| 12197 | H & H Oil Company | | Oil & Gas Operator | Sep 2025 |
| 12198 | H & H Oil Company, A General Partnership | Plainville, KS 67663 | Oil Operator | Feb 1997 |
| 12199 | H & H Oil Producers | | Oil & Gas Operator | Jan 2025 |
| 12200 | H & H Oil Productions | Tulsa, OK 74145 | Oil Operator | Jul 1999 |