| 29101 | Tharp Oil, A General Partnership | Chanute, KS 66720 | Oil Operator | Mar 2014 |
| 29102 | Tharp Operating Company | Houston, TX 77070 | Oil & Gas Operator | Nov 2014 |
| 29103 | Thaxton Operating | | Oil Operator | Jan 1994 |
| 29104 | Thayer Exploration Company | Wetumka, OK 74883 | Gas Operator | Dec 1996 |
| 29105 | The A I Root Company | Medina, OH 44256 | Gas Operator | Dec 2024 |
| 29106 | The Arvin Company | | Oil Operator | Dec 2004 |
| 29107 | The B&B Oil Co Of Sabine Inc | | Oil Operator | Jun 1982 |
| 29108 | The B&C Corp-Imp Amer MGT Co | | Oil & Gas Operator | Aug 1981 |
| 29109 | The Ballard & Cordell Corp | | Oil & Gas Operator | Feb 1982 |
| 29110 | The Bering Company | | Oil Operator | Jul 1979 |
| 29111 | The Bill Bowman Oil Company | | Oil Operator | Jun 2025 |
| 29112 | The Brinkerhoff Company | Denver, CO 80202 | Oil & Gas Operator | Dec 2017 |
| 29113 | The Calvert Company | Oklahoma City, OK 73154-1589 | Oil & Gas Operator | Dec 2021 |
| 29114 | The Carroll Rod & Gun Club, Inc. Of Frewsburg, Ny | Frewsburg, NY 14738 | Oil & Gas Operator | Dec 2024 |
| 29115 | The Colborn Company, Inc. | Eunice, NM 88231 | Oil & Gas Operator | Jun 2025 |
| 29116 | The Cornell Corporation | Fort Worth, TX 76109 | Oil & Gas Operator | Sep 1993 |
| 29117 | The Dehart Company LLC | Ardmore, OK 73402-0907 | Oil Operator | Jun 2025 |
| 29118 | The Edward H Everett Company | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 29119 | The Elliott Oil Corporation | | Oil & Gas Operator | Jun 2025 |
| 29120 | The Exploration Co. Of La, Inc | | Oil & Gas Operator | Nov 1987 |
| 29121 | The Galaxy Corporation | Sapulpa, OK 74066 | Oil & Gas Operator | Aug 2025 |
| 29122 | The Gas & Oil Company LLC | Apollo, PA 15613 | Oil & Gas Operator | Dec 2024 |
| 29123 | The George R Brown Partnership | | Oil & Gas Operator | Jun 1992 |
| 29124 | The Gerry Homes | Gerry, NY 14740 | Gas Operator | Dec 2024 |
| 29125 | The Glass Development Company | St. Marys, WV 26170-0000 | Oil & Gas Operator | Dec 2021 |
| 29126 | The Goro Corporation | | Oil & Gas Operator | Jul 1978 |
| 29127 | The Grapes Of Ross, LLC | Westfield, NY 14787 | Gas Operator | Dec 2024 |
| 29128 | The Guinn Company LLC | Asher, OK 74826-6012 | Oil & Gas Operator | Jun 2025 |
| 29129 | The Hampton Oil Corporation | | Oil & Gas Operator | Aug 2014 |
| 29130 | The Harter Family Trust Of 1995 | | Oil Operator | Dec 2003 |
| 29131 | The Harvest Group, LLC | | Oil & Gas Operator | May 2011 |
| 29132 | The Hunter Company, Inc. | | Oil & Gas Operator | Sep 1985 |
| 29133 | The Krik Company | | Oil Operator | Dec 2004 |
| 29134 | The KT Oil Company LLC | Ada, OK 74820 | Oil & Gas Operator | Jun 2025 |
| 29135 | The Lansdale Co. | | Oil & Gas Operator | Sep 2025 |
| 29136 | The Maurice L. Brown Company | | Oil & Gas Operator | Aug 1987 |
| 29137 | The Meridian Res. & Exp. LLC | | Oil & Gas Operator | Sep 2010 |
| 29138 | The Meridian Resource & Exp Co | | Oil & Gas Operator | Dec 2000 |
| 29139 | The Nahabedian Exploration Group LLC | | Oil & Gas Operator | Aug 2025 |
| 29140 | The Ny Conf. Assoc. Of Seventh-Day Adventists | Syracuse, NY 13215 | Gas Operator | Dec 2024 |
| 29141 | The Ohio Oil Company | | Oil Operator | Jan 2025 |
| 29142 | The Operating Co. | Pampa, TX 79065 | Oil & Gas Operator | Sep 2007 |
| 29143 | The Ozark Corp. | | Oil Operator | Apr 1970 |
| 29144 | The Pioneer | | Gas Operator | Feb 2008 |
| 29145 | The Port Of Long Beach | | Oil & Gas Operator | Dec 1997 |
| 29146 | The Procter And Gamble Co. | | Gas Operator | Dec 1989 |
| 29147 | The Production Co | Ligonier, PA 15658-0467 | Oil & Gas Operator | Dec 2012 |
| 29148 | The Production Co LLC | Ligonier, PA 15658-0467 | Oil & Gas Operator | Dec 2020 |
| 29149 | The Pyramid Corporation, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Dec 2009 |
| 29150 | The Quintin Little Company Inc | Ardmore, OK 73401 | Oil & Gas Operator | Aug 2025 |
| 29151 | The Raven Company LLC | Granbury, TX 76049 | Oil Operator | Mar 2010 |
| 29152 | The Richardson Petroleum Corporation | Whitesville, NY 14897 | Oil & Gas Operator | Dec 2024 |
| 29153 | The Robert And Donna Harwood Income Only Trust | Perry, NY 14530 | Gas Operator | Dec 2024 |
| 29154 | The Romanoff Corporation | | Oil & Gas Operator | Nov 1989 |
| 29155 | The Southern Louisiana Expl. Company LLC | | Oil & Gas Operator | Nov 2024 |
| 29156 | The Stone Oil Corporation | | Oil & Gas Operator | May 1985 |
| 29157 | The Stone Petro Corp-Toce Oil | | Oil & Gas Operator | Oct 1984 |
| 29158 | The Superior Oc WM Scully Etal | | Oil & Gas Operator | Apr 1986 |
| 29159 | The Superior Oil Co & Pel-Tex | | Oil & Gas Operator | Apr 1986 |
| 29160 | The Superior Oil Co - Tesoro | | Oil & Gas Operator | Apr 1986 |
| 29161 | The Termo Company | Long Beach, CA 90801 | Oil & Gas Operator | Sep 2025 |
| 29162 | The Texas Company | FT Worth, TX 76101 | Oil & Gas Operator | Dec 2013 |
| 29163 | The Trees Oil Company | Wichita, KS 67208 | Oil & Gas Operator | Nov 2014 |
| 29164 | The Twenty Eleven Corp Inc | Ada, OK 74820-3605 | Oil Operator | Jul 2025 |
| 29165 | The William R Earnhardt Company | Bristow, OK 74010 | Oil & Gas Operator | Jul 2025 |
| 29166 | The WM G Helis Company, L.L.C. | | Oil & Gas Operator | Nov 2003 |
| 29167 | The Woods Parcel, LLC | Orchard Park, NY 14127 | Gas Operator | Dec 2024 |
| 29168 | Theisen, VIncent A. | Wilmington, DE 19807 | Oil & Gas Operator | Sep 2003 |
| 29169 | Theodore W Ochs | Lucinda, PA 16235-3517 | Gas Operator | Dec 2009 |
| 29170 | Thigpin Operating, LLC | Odessa, TX 79762 | Oil Operator | Nov 2025 |
| 29171 | Third Coast Energy, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Nov 2025 |
| 29172 | Tholl Oil Company | | Oil Operator | Dec 2003 |
| 29173 | Thomas A. Blanton | | Oil Operator | Aug 2025 |
| 29174 | Thomas Aitken, Inc. | | Gas Operator | Dec 2024 |
| 29175 | Thomas And Ruby Parkinson Trust | Tatum, NM 88267 | Oil & Gas Operator | Aug 2025 |
| 29176 | Thomas B Rixleben | | Oil & Gas Operator | Jul 2008 |
| 29177 | Thomas Bell | | Oil Operator | Dec 1985 |
| 29178 | Thomas C. Hoffpauir | | Oil & Gas Operator | Mar 1991 |
| 29179 | Thomas C. Hoffpauir, Inc. | | Oil & Gas Operator | Jan 1981 |
| 29180 | Thomas C. King | | Oil & Gas Operator | Dec 1995 |
| 29181 | Thomas E L | Tulsa, OK 74136-6302 | Oil & Gas Operator | Feb 2015 |
| 29182 | Thomas E. Slack | | Oil Operator | Mar 2003 |
| 29183 | Thomas Exploration & Devel., Inc | Jourdanton, TX 78026 | Oil & Gas Operator | Nov 2025 |
| 29184 | Thomas Exploration Company | Tulsa, OK 74136-6302 | Oil & Gas Operator | Jul 2025 |
| 29185 | Thomas G. Easterling | | Oil Operator | Jun 1989 |
| 29186 | Thomas Garner, Inc. | St John, KS 67576 | Oil & Gas Operator | Jun 2025 |
| 29187 | Thomas J L Engineering Inc | Edmond, OK 73003-0026 | Oil & Gas Operator | Jul 2016 |
| 29188 | Thomas L Spring LLC | | Gas Operator | Aug 2025 |
| 29189 | Thomas M. Brown LLC | Plainville, KS 67663 | Oil Operator | Jun 2025 |
| 29190 | Thomas Oil & Gas Company | Luling, TX 78648 | Oil & Gas Operator | Aug 2003 |
| 29191 | Thomas Oil And Gas Inc. | San Angelo, TX 76906 | Oil & Gas Operator | May 2019 |
| 29192 | Thomas Oil Company | | Oil & Gas Operator | Dec 2008 |
| 29193 | Thomas Oil Company LLC | Ardmore, OK 73401-3717 | Oil Operator | Aug 2025 |
| 29194 | Thomas Oilers | | Oil & Gas Operator | Aug 2025 |
| 29195 | Thomas Operating Company Inc | Greeley, CO 80634 | Oil & Gas Operator | Aug 2008 |
| 29196 | Thomas Operating LTD. Co. | Dallas, TX 75220 | Oil & Gas Operator | Nov 2025 |
| 29197 | Thomas Production | Electra, TX 76360 | Oil & Gas Operator | Mar 2015 |
| 29198 | Thomas R Sivley | Southlake, TX 76092 | Oil & Gas Operator | Mar 2013 |
| 29199 | Thomas R. Banks | | Oil Operator | Aug 2025 |
| 29200 | Thomas Resources Corporation | Monahans, TX 79756 | Oil Operator | Mar 2008 |