| 12101 | Gupton Gas Co. | Fort Worth, TX 76107 | Oil & Gas Operator | Aug 1994 |
| 12102 | Gurley Oil Co | Kirtland, NM 87417 | Oil Operator | Dec 1995 |
| 12103 | Gurnee Gas Co., L.L.C. | | Gas Operator | Jul 2001 |
| 12104 | Gus Jones Cable Tool Service, LLC | Elk City, KS 67344 | Oil Operator | Nov 2024 |
| 12105 | Gusher Oil | | Oil Operator | Jul 2004 |
| 12106 | Gustafson Brothers Inc. | | Oil & Gas Operator | Dec 2002 |
| 12107 | Gustafson Family Trust 2 | Frewsburg, NY 14738 | Gas Operator | Dec 2024 |
| 12108 | Gustafson, Alan | Falconer, NY 14733 | Gas Operator | Dec 2024 |
| 12109 | Gustison Steven | | Oil Operator | Feb 1985 |
| 12110 | Guthrie Clare L And June | | Oil Operator | Nov 2021 |
| 12111 | Guthrie Oil Co | | Oil Operator | Nov 1994 |
| 12112 | Guthrie Oil Comp | | Oil & Gas Operator | Dec 1994 |
| 12113 | Guthrie, A. K. Operating Co. | Big Spring, TX 79720 | Oil & Gas Operator | Mar 1996 |
| 12114 | Guyan Gas Producers, Inc. | Oceana, WV 24870 | Gas Operator | Dec 2018 |
| 12115 | Guynes And Backus | | Oil Operator | Nov 1999 |
| 12116 | Guys Oil & Gas LTD Co | Hobbs, NM 88241 | Oil & Gas Operator | Dec 2019 |
| 12117 | Guzman Energy Inc. | | Oil & Gas Operator | Aug 2025 |
| 12118 | GVC Ventures | Mineola, TX 75773 | Oil & Gas Operator | Aug 2025 |
| 12119 | GW Energy, Inc. | Midland, TX 79710 | Oil Operator | Nov 2025 |
| 12120 | GW Investments, LLC | Mustang, OK 73064 | Oil Operator | Jul 2025 |
| 12121 | GW Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1993 |
| 12122 | GWB Oil & Gas LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 12123 | Gwet, Inc. | Merkel, TX 79536 | Oil Operator | Nov 2025 |
| 12124 | Gwitt, Edward J. | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 12125 | GWM Operating Company, LLC | Sugar Land, TX 77479 | Oil & Gas Operator | Nov 2025 |
| 12126 | Gyb-Britlind Oil, LLC | | Oil & Gas Operator | Jun 2016 |
| 12127 | Gypsy Exploration LLC | Oklahoma City, OK 73123-1323 | Oil & Gas Operator | Dec 2014 |
| 12128 | Gypsy Highview Gathering System, Inc. | Cut Bank, MT 59427-0250 | Oil & Gas Operator | Oct 2000 |
| 12129 | Gypsy Oil Co. | Austin, TX 78720 | Oil & Gas Operator | Jul 2017 |
| 12130 | Gypsyglenn Oil Company LLC | Tulsa, OK 74119-4809 | Oil & Gas Operator | Aug 2025 |
| 12131 | Gyro Petroleum | Amarillo, TX 79120 | Oil & Gas Operator | Nov 2025 |
| 12132 | H & A Drilling | Newark, OH 43056 | Oil Operator | Dec 2024 |
| 12133 | H & B Petroleum Corp. | Hutchinson, KS 67504 | Oil & Gas Operator | Jun 2025 |
| 12134 | H & B Production | | Oil Operator | Mar 1995 |
| 12135 | H & B Well Service, Inc. | | Oil & Gas Operator | Aug 1993 |
| 12136 | H & C Oil Operat | | Oil & Gas Operator | Dec 1996 |
| 12137 | H & C Oil Operating Inc. | Plainville, KS 67663 | Oil & Gas Operator | Jun 2025 |
| 12138 | H & D Drilling Co Inc | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2024 |
| 12139 | H & D Exploration LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |
| 12140 | H & D Operating Company | Refugio, TX 78377 | Oil & Gas Operator | May 2015 |
| 12141 | H & H & S Oil Producers | | Oil Operator | Jan 2025 |
| 12142 | H & H Compressors, Inc. | | Oil & Gas Operator | Oct 1997 |
| 12143 | H & H Drilling Company | Davis, OK 73030-2703 | Oil & Gas Operator | May 2014 |
| 12144 | H & H Energy Inc | Tuttle, OK 73089 | Oil Operator | May 2001 |
| 12145 | H & H Energy Of Ohio LTD | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2024 |
| 12146 | H & H Exploration | Tulsa, OK 74132 | Oil & Gas Operator | Jan 2006 |
| 12147 | H & H Oil Co. #1 | | Oil Operator | Jan 2025 |
| 12148 | H & H Oil Compan | | Oil & Gas Operator | Aug 1995 |
| 12149 | H & H Oil Company | | Oil & Gas Operator | Jun 2025 |
| 12150 | H & H Oil Company, A General Partnership | Plainville, KS 67663 | Oil Operator | Feb 1997 |
| 12151 | H & H Oil Producers | | Oil & Gas Operator | Jan 2025 |
| 12152 | H & H Oil Productions | Tulsa, OK 74145 | Oil Operator | Jul 1999 |
| 12153 | H & H Oil, LLC | Lincolnville, KS 66858 | Oil Operator | Jun 2025 |
| 12154 | H & H Operating | Olney, TX 76374 | Oil & Gas Operator | Nov 2025 |
| 12155 | H & H Petroleum, LLC | San Antonio, TX 78213 | Oil Operator | Nov 2025 |
| 12156 | H & H Production | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
| 12157 | H & H Production Company | Muenster, TX 76252 | Oil & Gas Operator | Oct 2005 |
| 12158 | H & H Production, Inc. | Topeka, KS 66614 | Oil Operator | May 1997 |
| 12159 | H & H Star Energy Inc | Traverse City, MI 49684 | Oil & Gas Operator | Aug 2016 |
| 12160 | H & H Supply Inc | | Gas Operator | Mar 1985 |
| 12161 | H & K Energy Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1991 |
| 12162 | H & K Oil Company | Kilgore, TX 75662 | Oil & Gas Operator | Nov 1998 |
| 12163 | H & K Oil Company (A) | Luling, TX 78648 | Oil Operator | Nov 2025 |
| 12164 | H & L Exploration Company, LLC | Amarillo, TX 79114 | Oil & Gas Operator | Nov 2025 |
| 12165 | H & L Gas Co. | Sunray, TX 79086 | Gas Operator | Apr 2018 |
| 12166 | H & L Operating Co., L.L.P. | Amarillo, TX 79114 | Oil & Gas Operator | Aug 2022 |
| 12167 | H & L Operating Co., LLC | Amarillo, TX 79114 | Oil & Gas Operator | Mar 2021 |
| 12168 | H & L Operating Company | Amarillo, TX 79114 | Oil & Gas Operator | Feb 2020 |
| 12169 | H & L Operators | | Oil & Gas Operator | Dec 2002 |
| 12170 | H & L Oprerating Company LLP | Amarillo, TX 79114 | Oil & Gas Operator | Nov 2019 |
| 12171 | H & M Oil Producers | Littleton, CO 80160 | Oil & Gas Operator | Apr 2000 |
| 12172 | H & M Packers Serv. L.L.C. | | Oil Operator | Dec 2019 |
| 12173 | H & M Petroleum Corporation | Lincoln, NE 68516 | Oil & Gas Operator | Jun 2025 |
| 12174 | H & M Productions L.L.C. | Overland Park, KS 66210 | Oil Operator | May 1998 |
| 12175 | H & M Resources, LLC | Dallas, TX 75225 | Oil & Gas Operator | Nov 2025 |
| 12176 | H & N Operating Co., Inc. | | Oil & Gas Operator | Oct 1997 |
| 12177 | H & O Oil Co. | | Oil & Gas Operator | Dec 1989 |
| 12178 | H & O Operating Co | Odessa, TX 79764 | Oil & Gas Operator | Mar 2008 |
| 12179 | H & P Exploration Co. | Alice, TX 78333 | Oil & Gas Operator | May 2019 |
| 12180 | H & P Partnership | La Vernia, TX 78121 | Oil Operator | Nov 2025 |
| 12181 | H & R Expl & Production Inc | Sidney, NE 69162 | Oil Operator | May 2007 |
| 12182 | H & R Exploratio | | Oil Operator | Feb 1992 |
| 12183 | H & R Oil Company | | Oil & Gas Operator | Dec 2000 |
| 12184 | H & R Well Services, Inc. | FT Morgan, CO 80701 | Oil & Gas Operator | Apr 2015 |
| 12185 | H & S Drilling Co Inc | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2016 |
| 12186 | H & S Investments LLC | Fairview, PA 16415-1807 | Oil & Gas Operator | Dec 2024 |
| 12187 | H & S Oil Co., LLC | Cherryvale, KS 67335 | Oil Operator | Oct 2024 |
| 12188 | H & S Oil Company | Kellyville, OK 74039 | Oil & Gas Operator | Mar 1998 |
| 12189 | H & S Oil LLC | Roswell, NM 882022387 | Oil & Gas Operator | Jul 2013 |
| 12190 | H & S Operating Company Inc | Winesburg, OH 44690 | Oil & Gas Operator | Dec 2024 |
| 12191 | H & S Production | Farmington, NM 87401 | Oil Operator | Dec 2007 |
| 12192 | H & S Production, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Mar 2004 |
| 12193 | H & T Brock Oil Company LLC | Comanche, OK 73529-7140 | Oil & Gas Operator | Feb 2024 |
| 12194 | H & T Disposal | Abilene, TX 79608 | Oil Operator | Apr 2003 |
| 12195 | H & T Exploration, Inc. | Longview, TX 75605 | Oil & Gas Operator | Nov 2025 |
| 12196 | H & T Oil & Gas Company, Inc. | Alice, TX 78333 | Oil & Gas Operator | Mar 2008 |
| 12197 | H & W Drilling Inc | Racine, OH 45769 | Oil & Gas Operator | Dec 2023 |
| 12198 | H & W Energy | Youngstown, OH 44512 | Oil & Gas Operator | Dec 2015 |
| 12199 | H & W Marketing Company | Benbrook, TX 76126 | Oil & Gas Operator | Dec 2002 |
| 12200 | H & W Oil | Electra, TX 76360 | Oil & Gas Operator | Mar 2008 |