| 12101 | Haas, Mark L. | Kansas City, MO 67112 | Oil Operator | Feb 2013 |
| 12102 | Haass Ranch Oil Company, LLC | Castroville, TX 78009 | Oil Operator | Sep 2026 |
| 12103 | Habanero Oil & Gas Operating,LLC | Austin, TX 78701 | Oil & Gas Operator | Feb 2018 |
| 12104 | Haber Resources Corporation | Houston, TX 77063 | Oil & Gas Operator | Mar 1999 |
| 12105 | Habetz Oilfield Saltwater Ser, Inc | | Oil Operator | Dec 2024 |
| 12106 | Habit Petroleum | | Oil Operator | Dec 2009 |
| 12107 | Habit Petroleum, LLC | Hays, KS 67601 | Oil Operator | May 2026 |
| 12108 | Hackberry Production, Inc. | | Oil Operator | Mar 1988 |
| 12109 | Hacker Brothers Oil Company, Inc | Muenster, TX 76252 | Oil & Gas Operator | May 2004 |
| 12110 | Hacker Brothers Well Service,Inc | Muenster, TX 76252 | Oil & Gas Operator | Sep 2026 |
| 12111 | Hacker, Freddie J. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2012 |
| 12112 | Hacker, Jack | Coats, KS 67028 | Oil & Gas Operator | Apr 2026 |
| 12113 | Hackley Okla Inc | | Oil & Gas Operator | Aug 1992 |
| 12114 | Had-A-Call Oil | | Oil Operator | Feb 2017 |
| 12115 | Hadaway Consult And Engineer,LLC | Canadian, TX 79014 | Oil & Gas Operator | Sep 2026 |
| 12116 | Hadaway Consulting And Engineering LLC | Canadian, TX 79014 | Oil & Gas Operator | Jul 2026 |
| 12117 | Hadaway Engineering Inc | Canadian, TX 79014 | Oil & Gas Operator | Jul 2015 |
| 12118 | Hadco LTD | Ardmore, OK 73401-6929 | Oil & Gas Operator | Mar 2015 |
| 12119 | Haddad & Brooks Inc | Washington, PA 15301 | Oil & Gas Operator | Dec 2018 |
| 12120 | Haddad Boynton, LLC | Jonesville, TX 75659 | Oil Operator | Sep 2026 |
| 12121 | Hadden, Pennell & Rohret | Lakewood, CO 80228 | Oil Operator | Nov 1994 |
| 12122 | Haddock, Jack L. | Hays, KS 67601 | Oil Operator | Apr 2026 |
| 12123 | Haddox Johnny C | Okemah, OK 74859-0254 | Oil Operator | Apr 2020 |
| 12124 | Haddox Petroleum Corp | | Gas Operator | Dec 2010 |
| 12125 | Hadley Oil | Nocona, TX 76255 | Oil Operator | Jan 2014 |
| 12126 | Hadley Oil Company, LLC | Nocona, TX 76255 | Oil Operator | Sep 2026 |
| 12127 | Hadley/Jackson Energy LLC | Lake Forest, IL 60045 | Oil & Gas Operator | Jul 2026 |
| 12128 | Hadson Energy Resources Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 1994 |
| 12129 | Hadson Petro USA Inc | | Oil & Gas Operator | Nov 2016 |
| 12130 | Hadson Petroleum | | Oil Operator | Sep 1988 |
| 12131 | Hadson Petroleum (USA), Inc. | | Oil & Gas Operator | Dec 1992 |
| 12132 | Hadson Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 12133 | Haessly Hardwood Lumber Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 2025 |
| 12134 | Hafer Run Enterprise | Independence, KS 67301 | Oil Operator | Oct 1997 |
| 12135 | Haffaday Oil LLC | | Oil Operator | Jan 2025 |
| 12136 | Haffner Dan | Hoxie, KS 67740 | Oil Operator | May 2026 |
| 12137 | Hagan, IVan - All-Kin Oil Co | | Oil Operator | Dec 2024 |
| 12138 | Hager Gas Co | Danville, WV 25053 | Gas Operator | Dec 2010 |
| 12139 | Haggard Operating Group/Oil | Atascosa, TX 78002 | Oil & Gas Operator | Sep 2026 |
| 12140 | Haggard, E. A. | Graham, TX 76450 | Oil & Gas Operator | Apr 2001 |
| 12141 | Hagler William N | Farmington, NM 87499-0035 | Oil Operator | Apr 2014 |
| 12142 | Hahn Kahle E | Knox, PA 16232-4311 | Oil & Gas Operator | Dec 2003 |
| 12143 | Haider Operating, LLC | Pampa, TX 79066 | Oil & Gas Operator | Sep 2026 |
| 12144 | Haigood & Campbell | Archer City, TX 76351 | Oil & Gas Operator | Sep 2026 |
| 12145 | Haigood, Danny | Portland, TX 78374 | Oil & Gas Operator | Mar 2008 |
| 12146 | Hail Petroleum Corporation | Garland, TX 75047-5036 | Oil Operator | Mar 1997 |
| 12147 | Haile Petroleum LTD | Artesia, NM 882110186 | Oil & Gas Operator | Aug 2000 |
| 12148 | Haile, Guy W. | Sterling, KS 67579 | Oil Operator | May 2026 |
| 12149 | Hailey Energy Corporation | Wesson, MS 39191 | Gas Operator | May 2013 |
| 12150 | Haimo Oil & Gas LLC | Houston, TX 77042 | Oil & Gas Operator | Aug 2020 |
| 12151 | Haines Oil Company | Sulphur, OK 73086 | Oil & Gas Operator | Oct 2009 |
| 12152 | Hair, Roger D. | Post, TX 79356 | Oil & Gas Operator | Sep 2026 |
| 12153 | Haischer James W Dba Haischer James W And Assoc | | Oil & Gas Operator | Dec 2001 |
| 12154 | Haken Oil LLC | Glencoe, OK 74032-1500 | Oil Operator | Jun 2026 |
| 12155 | Hal J Rasmussen Oper Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2014 |
| 12156 | Hal Oil & Gas Co., Inc. | | Oil & Gas Operator | Apr 1993 |
| 12157 | Haland Operating Company, LLC | | Oil & Gas Operator | Jul 2018 |
| 12158 | Halbouty, Michel T. | Houston, TX 77056 | Oil & Gas Operator | Aug 1997 |
| 12159 | Halbouty-Reserve | | Oil & Gas Operator | Sep 1987 |
| 12160 | Halbouty-Reserve-Pel-Tex | | Oil & Gas Operator | May 1985 |
| 12161 | Halcon Holdings, Inc. | Ada, OK 74820 | Oil & Gas Operator | Jun 2026 |
| 12162 | Halcon Louisiana Operating, LP | | Oil & Gas Operator | Sep 2017 |
| 12163 | Halcon Operating Co., Inc. | Houston, TX 77024 | Oil & Gas Operator | Sep 2026 |
| 12164 | Halcon Opr Co Inc | Houston, TX 77002-5005 | Oil & Gas Operator | Jul 2017 |
| 12165 | Halcon Resources Operating, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2013 |
| 12166 | Halcyon Natural Gas LLC | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | May 2026 |
| 12167 | Halde Oil Inc | | Oil & Gas Operator | May 2026 |
| 12168 | Hale John H | Tulsa, OK 74107 | Oil & Gas Operator | Mar 2000 |
| 12169 | Hale Oil | | Oil & Gas Operator | Dec 2024 |
| 12170 | Hale Oil & Gas Properties | Graham, TX 76450 | Oil & Gas Operator | Jul 1997 |
| 12171 | Hale Oil Co. | | Oil & Gas Operator | Jan 2025 |
| 12172 | Hale, L.D. | Wichita, KS 67230 | Oil Operator | Oct 2019 |
| 12173 | Hale, Mike E. | Georgetown, TX 78628 | Oil & Gas Operator | Dec 2003 |
| 12174 | Halek Energy L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Jan 2014 |
| 12175 | Halex Inc | | Oil & Gas Operator | Nov 1988 |
| 12176 | Halex Oil Corporation | Houston, TX 77057 | Oil & Gas Operator | Sep 2026 |
| 12177 | Halfway Oil Inc | Tahlequah, OK 74464-5448 | Oil & Gas Operator | Aug 2013 |
| 12178 | Halgas Inc | Tulsa, OK 74101-3012 | Oil & Gas Operator | May 2013 |
| 12179 | Hall & Horning Serv Inc | Atwater, OH 44201-9375 | Oil & Gas Operator | Dec 2009 |
| 12180 | Hall And Kelley Oil & Gas | | Oil Operator | Dec 1995 |
| 12181 | Hall Drilling LLC (Oil & Gas) | Ellenboro, WV 26346 | Gas Operator | Sep 2014 |
| 12182 | Hall Drilling, LLC | Ellenboro, WV 26346 | Oil & Gas Operator | Dec 2021 |
| 12183 | Hall Edward L | Ada, OK 74820-3321 | Oil & Gas Operator | Jun 2026 |
| 12184 | Hall Energy Co. | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2016 |
| 12185 | Hall Energy Company LLC | Oklahoma City, OK 73120-5020 | Oil & Gas Operator | Jul 2022 |
| 12186 | Hall Energy Inc | Magnetic Spring, OH 43036 | Oil & Gas Operator | Dec 2017 |
| 12187 | Hall Engineering, Inc. | | Oil & Gas Operator | Jan 2007 |
| 12188 | Hall Exploration, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2026 |
| 12189 | Hall Farm Leasing, LLC | | Oil Operator | Dec 2012 |
| 12190 | Hall Glenn R | Ocheleta, OK 74051 | Oil & Gas Operator | Jun 2026 |
| 12191 | Hall IVan & Assoc Inc | Berea, OH 44017 | Oil & Gas Operator | Dec 1997 |
| 12192 | Hall Oil & Gas | Coahoma, TX 79511 | Oil & Gas Operator | Sep 2026 |
| 12193 | Hall Oil And Gas LLC | Midland, TX 79707 | Oil & Gas Operator | Sep 2026 |
| 12194 | Hall Oil Company | Humboldt, KS 66748 | Oil Operator | Nov 2009 |
| 12195 | Hall Resources Corporation | Independence, MO 64057-2158 | Oil & Gas Operator | Jun 2016 |
| 12196 | Hall Richard A | | Oil Operator | Sep 1993 |
| 12197 | Hall Thomas E | Marietta, OH 45750 | Oil & Gas Operator | Dec 2021 |
| 12198 | Hall, D. Corporation | La Grange, TX 78945 | Oil & Gas Operator | Mar 2013 |
| 12199 | Hall, E. G., Oil Co. | Mexia, TX 76667 | Oil & Gas Operator | Sep 2026 |
| 12200 | Hall, J.J. Operating Co., Inc. | Lakewood, CO 80215 | Oil Operator | Jan 2005 |