| 12101 | Greenhaw, Morris R Oil & Gas Inc | Desdemona, TX 76445 | Oil & Gas Operator | May 2006 |
| 12102 | Greenhaw, Morris R. | Desdemona, TX 76445 | Oil & Gas Operator | Apr 2025 |
| 12103 | Greenhead Energy Operating LLC | Oklahoma City, OK 73131 | Oil & Gas Operator | Feb 2025 |
| 12104 | Greenhill Petroleum Corporation | Houston, TX 77077 | Oil & Gas Operator | Jan 1998 |
| 12105 | Greenlake Energy Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 12106 | Greenland Operating LLC | | Oil Operator | Mar 2025 |
| 12107 | Greenland Petroleum Co | Belle Valley, OH 43717-178-178 | Oil & Gas Operator | Dec 1991 |
| 12108 | Greenlee Oil And Gas LLC | Norman, OK 73072 | Oil & Gas Operator | Jan 2025 |
| 12109 | Greenlight Enterprises LLC | McKinney, TX 75072 | Oil Operator | Apr 2025 |
| 12110 | Greenridge Oil Company LLC | Mill Valley, CA 94942 | Oil & Gas Operator | Dec 2023 |
| 12111 | Greenridge Oil Inc | New Freeport, PA 15352-1560 | Oil & Gas Operator | Dec 2024 |
| 12112 | Greensburg Energy, LLC | Greensburg, KY 42743 | Oil Operator | Dec 2023 |
| 12113 | Greensburg Oilfield LLC | Zenda, KS 67159 | Oil Operator | Nov 2013 |
| 12114 | Greenstone Energy, LLC | Houston, TX 77208 | Oil Operator | Apr 2025 |
| 12115 | Greenstreet Lloyd | | Oil Operator | Dec 1986 |
| 12116 | Greenville Land Development Co. | Elizabeth, WV 26143-0252 | Oil & Gas Operator | Dec 2021 |
| 12117 | Greenville Oil Company | Greenville, KY 42345 | Oil Operator | Dec 2023 |
| 12118 | Greenville Operating Company | Dallas, TX 75206 | Oil & Gas Operator | Oct 1996 |
| 12119 | Greenwerks Outdoor Services LLC | Stockdale, TX 78160 | Oil Operator | Apr 2025 |
| 12120 | Greenwich Oil Corporation | Dallas, TX 75225 | Oil & Gas Operator | Mar 1994 |
| 12121 | Greenwood Energy Inc | Oklahoma City, OK 73116-9083 | Oil & Gas Operator | Mar 2015 |
| 12122 | Greenwood Holding Inc | Englewood, CO 80110 | Oil & Gas Operator | Jun 1993 |
| 12123 | Greenwood Holdings Inc | Englewood, CO BADADDR | Oil & Gas Operator | Jul 1995 |
| 12124 | Greenwood James W | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2014 |
| 12125 | Greenwood Janet | Mannford, OK 74044 | Oil Operator | Apr 2014 |
| 12126 | Greenwood Oil Company | Skiatook, OK 74070 | Oil & Gas Operator | Aug 2013 |
| 12127 | Greenwood Oil LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2023 |
| 12128 | Greenwood Resources | | Oil & Gas Operator | Jan 1992 |
| 12129 | Greenwood Resources L.L.C. | Pratt, KS 67124 | Oil Operator | Dec 2024 |
| 12130 | Greer & Beckham Gas Co Inc | Shamrock, TX 79079-0606 | Oil & Gas Operator | Aug 2013 |
| 12131 | Greer Energy, Inc. | | Oil Operator | Dec 1996 |
| 12132 | Greer Exploration Corporation | Shreveport, LA 71118 | Oil & Gas Operator | Jul 2017 |
| 12133 | Greer Family Trust | Ponca City, OK 74601-8126 | Oil Operator | Aug 2018 |
| 12134 | Greer Industries, Inc. | Morgantown, WV 26507-1900 | Gas Operator | Dec 2021 |
| 12135 | Greer Oil Compan | | Oil & Gas Operator | Jun 1988 |
| 12136 | Greer Tom & Welm | | Oil Operator | Mar 1995 |
| 12137 | Greer Tom R | Ponca City, OK 74602-2444 | Oil & Gas Operator | May 2013 |
| 12138 | Greer, Inc. | Arnoldsburg, WV 25234 | Oil & Gas Operator | Dec 2021 |
| 12139 | Greer, Joseph V. | Yates Center, KS 66783 | Oil & Gas Operator | Oct 2005 |
| 12140 | Greer, Tom | Ponca City, OK 74602 | Oil Operator | Aug 2016 |
| 12141 | Greg Davis Investments Inc | Edmond, OK 73034-6621 | Oil Operator | May 2020 |
| 12142 | Greg Hall Oil & Gas LLC | Norman, OK 73072 | Oil & Gas Operator | Jan 2025 |
| 12143 | Gregco, Inc. | Paducah, TX 79248 | Oil & Gas Operator | May 1999 |
| 12144 | Gregg Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 12145 | Gregg Price Corp | Dover, OH 44622 | Oil & Gas Operator | Dec 2014 |
| 12146 | Gregory, J. Russell Inc. | Houston, TX 77025 | Gas Operator | Nov 2009 |
| 12147 | Gregory, JD | | Oil & Gas Operator | Dec 2021 |
| 12148 | Greka Am Inc | Santa Maria, CA 93454 | Oil & Gas Operator | May 2013 |
| 12149 | Grenadier Energy Partners II,LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2020 |
| 12150 | Gresham Oil & Gas (USA) Inc. | Littleton, CO 80122 | Oil & Gas Operator | Jan 1999 |
| 12151 | Gress Oil & Gas | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2024 |
| 12152 | Gressel Production, LLC | South Haven, KS 67140 | Oil & Gas Operator | Oct 2024 |
| 12153 | Gressel, Dewey H. | | Oil Operator | Dec 2009 |
| 12154 | Greta Operating Company LLC | Refugio, TX 78377 | Oil & Gas Operator | Apr 2025 |
| 12155 | Grewing, Florence T. | Muenster, TX 76252 | Oil & Gas Operator | Mar 2008 |
| 12156 | Grewing, Herman | Muenster, TX 76252 | Oil & Gas Operator | Apr 1997 |
| 12157 | Grewing, Herman Operating, Inc. | Muenster, TX 76252 | Oil Operator | Apr 2025 |
| 12158 | Grewing, Wayne R. Oil & Gas, LLC | Muenster, TX 76252 | Oil Operator | Apr 2018 |
| 12159 | Grey Eagle Construction Company, Inc. | Kermit, WV 25674 | Gas Operator | Dec 2021 |
| 12160 | Grey Hawk Operating LLC | Birmingham, AL 35242 | Oil Operator | Jan 2024 |
| 12161 | Grey Oil Company | Pratt, KS 67124 | Oil & Gas Operator | Sep 2007 |
| 12162 | Grey Rider Energy, LLC | Schertz, TX 78154 | Oil & Gas Operator | Apr 2025 |
| 12163 | Grey Wolf Production Company, Inc. | Garnett, KS 66032-0426 | Oil Operator | Mar 2015 |
| 12164 | Grey, Glenn E. | Haviland, KS 67059 | Oil Operator | Mar 2002 |
| 12165 | Grey, Huey P. | Greensburg, KS 67054 | Oil Operator | Dec 1984 |
| 12166 | Grey, James H. | Greensburg, KS 67054 | Gas Operator | Nov 1988 |
| 12167 | Grey, Lonnie & Lennie Adams | Ravenna, KY 40472 | Oil Operator | Dec 2016 |
| 12168 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Feb 2025 |
| 12169 | Greylock Opco LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2024 |
| 12170 | Greylock Production LLC | Charleston, WV 25311-1264 | Oil & Gas Operator | Feb 2025 |
| 12171 | Greystone Exploration Co | Oklahoma City, OK 73177 | Oil & Gas Operator | Apr 1996 |
| 12172 | Greystone Oil & Gas, LLP | Houston, TX 77057 | Oil & Gas Operator | Dec 2015 |
| 12173 | Greystone Operating, Inc. | | Oil & Gas Operator | Nov 2009 |
| 12174 | Greystone Petroleum, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2025 |
| 12175 | Greystone, Inc. | Hays, KS 67601 | Oil Operator | Jun 2019 |
| 12176 | Gribble Jr R W | Dallas, TX 75235 | Oil & Gas Operator | Apr 2014 |
| 12177 | Gribble Oil Company | | Oil & Gas Operator | Jun 1996 |
| 12178 | Gribble Oil Corporation | Dallas, TX 75235 | Oil Operator | Aug 1994 |
| 12179 | Griebel-Valliquette | Stroud, OK 74079-0231 | Oil & Gas Operator | Aug 2016 |
| 12180 | Griffin & Griffin Expl, LLC | | Oil & Gas Operator | Jan 2025 |
| 12181 | Griffin & Griffin Oil Co. Inc. | | Oil & Gas Operator | Jun 2001 |
| 12182 | Griffin & Griffin Oil Co., Inc Et Al | | Oil & Gas Operator | Jan 2010 |
| 12183 | Griffin Bennie C | Arora, CO 80011 | Gas Operator | Dec 1993 |
| 12184 | Griffin Energy | | Oil & Gas Operator | May 1991 |
| 12185 | Griffin Energy Holdings, LLC | Plano, TX 75093 | Oil Operator | Apr 2025 |
| 12186 | Griffin Management LLC | | Oil & Gas Operator | Feb 2010 |
| 12187 | Griffin Operating | | Oil & Gas Operator | Mar 1995 |
| 12188 | Griffin Operating, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Mar 2017 |
| 12189 | Griffin Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Apr 2025 |
| 12190 | Griffin Resources | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2003 |
| 12191 | Griffin Resources LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 12192 | Griffin Resources, Inc. | | Oil & Gas Operator | Feb 2025 |
| 12193 | Griffin Southern Corp. | | Oil & Gas Operator | Jun 1983 |
| 12194 | Griffin Well Service Inc | Konawa, OK 74849-9710 | Oil & Gas Operator | Jan 2025 |
| 12195 | Griffin, Charles | Stafford, KS 67578 | Oil Operator | Sep 1997 |
| 12196 | Griffin, Charles N. | Pratt, KS 67124 | Oil & Gas Operator | Dec 2024 |
| 12197 | Griffis, Ronnie Et Al | Stephens, AR 71764 | Oil & Gas Operator | Sep 2024 |
| 12198 | Griffith Petroleum Services Inc | Kingston, OK 73439 | Oil & Gas Operator | Jan 2025 |
| 12199 | Griffith, Johnnie R. | O'Fallon, IL 62269 | Oil & Gas Operator | Dec 1996 |
| 12200 | Griffith, Michael P. | Falconer, NY 14733 | Gas Operator | Dec 2023 |