| 28101 | Tember Oil Company | Holliday, TX 76366 | Oil & Gas Operator | May 2024 |
| 28102 | Temblor Petroleum Co. LLC | | Oil & Gas Operator | Feb 2024 |
| 28103 | Temescal Resources LLC | | Oil & Gas Operator | Mar 2024 |
| 28104 | Temex Energy, Inc. | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 28105 | Tempest Energy Resources, LP | Houston, TX 77251 | Oil & Gas Operator | Jun 2013 |
| 28106 | Tempest Oil Company, Inc. | | Oil & Gas Operator | Jul 1978 |
| 28107 | Templar Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Jan 2024 |
| 28108 | Temple Oil & Gas Co | Crooksville, OH 43731 | Oil & Gas Operator | Dec 2023 |
| 28109 | Temple Oil Co | | Oil & Gas Operator | Oct 1992 |
| 28110 | Templeton Energy Inc | | Oil & Gas Operator | Jul 1987 |
| 28111 | Templeton Oil, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1994 |
| 28112 | Tempo Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | May 2024 |
| 28113 | Tempo Resources GP, LLC | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2013 |
| 28114 | Ten A Coal Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2020 |
| 28115 | Ten Grand Energy Company Inc | Nachogdoches, TX 75963-1880 | Oil Operator | Mar 2011 |
| 28116 | Tenaska Marketing Ventures | Omaha, NE 68154 | Oil & Gas Operator | Mar 2021 |
| 28117 | Tenaska Res LLC | Canonsburg, PA 15317 | Gas Operator | May 2020 |
| 28118 | Tend Oil Inc. | Tyler, TX 75703 | Oil & Gas Operator | Jul 1995 |
| 28119 | Tender Equity Corporation | Marietta, OH 45750 | Oil & Gas Operator | Dec 2007 |
| 28120 | Tenex Corporation | Houston, TX 77227 | Oil & Gas Operator | Dec 2007 |
| 28121 | Tenex Oil Corpor | | Oil Operator | May 1991 |
| 28122 | Tenexco Inc | Oakbrook Terrace, IL 60181 | Gas Operator | Dec 1998 |
| 28123 | Tengasco, Inc. | Houston, TX 77063 | Oil & Gas Operator | Dec 2023 |
| 28124 | Tenison Oil Comp | | Oil Operator | Jan 1993 |
| 28125 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | May 2024 |
| 28126 | Tenk, Lawrence O. | Ottawa, KS 66067 | Oil & Gas Operator | Oct 1998 |
| 28127 | Tenmile Land Limited Liability Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 28128 | Tenneco Inc. | | Oil & Gas Operator | Jun 1989 |
| 28129 | Tenneco Oil Comp | | Oil & Gas Operator | Aug 1995 |
| 28130 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Feb 2024 |
| 28131 | Tenneco Ventures Corporation | | Oil & Gas Operator | Feb 1996 |
| 28132 | Tenneco West, Inc. | | Oil & Gas Operator | Dec 1983 |
| 28133 | Tennessee Gas Pipeline Company | Houston, TX 77252 | Oil & Gas Operator | Dec 2011 |
| 28134 | Tennessee Gas Pipeline Company, LLC | | Oil Operator | Dec 2023 |
| 28135 | Tennessee Properties, Inc | | Oil Operator | Dec 2014 |
| 28136 | Tennyson Jerry Dba Tennyson Oil & Gas | | Oil Operator | Jan 2024 |
| 28137 | Tenpas, Bruce | Clymer, NY 14724 | Gas Operator | Dec 2022 |
| 28138 | Tensas Delta Explo. Co., LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2011 |
| 28139 | Tensas Delta Exploration Company, LLC | Shreveport, LA 71101-5323 | Oil & Gas Operator | Jul 2021 |
| 28140 | Tensas Delta Land Company | | Oil & Gas Operator | Apr 2002 |
| 28141 | Teocali Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Mar 2024 |
| 28142 | Teocalli Exploration LLC | | Oil & Gas Operator | Feb 2024 |
| 28143 | Teon Management, LLC | Midland, TX 79704 | Oil & Gas Operator | Mar 2020 |
| 28144 | Tep Barnett USA, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | May 2024 |
| 28145 | Tepco Resources, Inc. | Houston, TX 77027 | Oil & Gas Operator | Oct 2004 |
| 28146 | Tepco, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 1999 |
| 28147 | Tepee Petroleum Company, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2014 |
| 28148 | Ter Ex Inc | Butler, PA 16002-8638 | Gas Operator | Dec 1994 |
| 28149 | Terex Energy Corporation | Casper, WY 82602 | Oil & Gas Operator | Aug 2019 |
| 28150 | Terhune Harry C | Bartlesville, OK 74003 | Oil Operator | Feb 1997 |
| 28151 | Terhune Opal S | Bartlesville, OK 74006-0472 | Oil Operator | Dec 2023 |
| 28152 | Term Energy Corp. | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 28153 | Termo Co. Of Texas | | Oil & Gas Operator | Dec 1986 |
| 28154 | Terra Energy Co LLC | | Oil & Gas Operator | Apr 2018 |
| 28155 | Terra Energy LTD | | Oil & Gas Operator | Apr 2018 |
| 28156 | Terra Exploration & Production Co. Inc. | | Oil & Gas Operator | Dec 2009 |
| 28157 | Terra Locus Services | Seguin, TX 78155 | Oil & Gas Operator | Jun 2000 |
| 28158 | Terra Max Energy | | Oil Operator | Mar 1986 |
| 28159 | Terra Production Company | Okemah, OK 74859-5924 | Oil & Gas Operator | Apr 2020 |
| 28160 | Terra Resc Incor | | Oil Operator | Mar 1986 |
| 28161 | Terra Resources, Inc. | Casper, WY 82601 | Oil & Gas Operator | Jun 1990 |
| 28162 | Terrace Petroleum Corporation | Midland, TX 79701 | Oil & Gas Operator | Jul 2013 |
| 28163 | Terrafina Energy, LLC | San Antonio, TX 78280 | Oil & Gas Operator | May 2024 |
| 28164 | Terral D Hinds | | Oil Operator | Mar 2012 |
| 28165 | Terrapet Corporation | | Oil & Gas Operator | Jun 2011 |
| 28166 | Terrapin Energy LLC | Mountain VIew, CA 94043-2356 | Oil Operator | Feb 2024 |
| 28167 | Terraquest Corporation | Edmond, OK 73034 | Oil & Gas Operator | Jul 1997 |
| 28168 | Terrascan Drilling Corp | Dublin, OH 43017 | Oil Operator | Dec 2005 |
| 28169 | Terrel Production Co | | Oil & Gas Operator | Nov 2023 |
| 28170 | Terreland Corporation | Sunray, TX 79086 | Oil & Gas Operator | Oct 2004 |
| 28171 | Terrell Oil & Gas Production Co. | Hamlin, TX 79520 | Oil & Gas Operator | May 2024 |
| 28172 | Terrgin Oil & Gas LLC | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2021 |
| 28173 | Terrick Resources | Midland, TX 79708 | Oil & Gas Operator | Jul 2005 |
| 28174 | Terrier Oil Company | | Oil & Gas Operator | Feb 2015 |
| 28175 | Terrier Oil Company, LLC | | Oil & Gas Operator | Jan 2024 |
| 28176 | Territory Resources LLC | Stillwater, OK 74074-1869 | Oil & Gas Operator | Feb 2024 |
| 28177 | Terrol Energy In | | Oil Operator | Feb 1993 |
| 28178 | Terrol Energy, Inc. | Hygiene, CO 80533 | Oil & Gas Operator | Dec 2006 |
| 28179 | Terronne Petroleum Corporation | | Oil & Gas Operator | Dec 2023 |
| 28180 | Terry D Coan | Youngsville, PA 16371-3608 | Oil & Gas Operator | Dec 2021 |
| 28181 | Terry Development, Inc. | | Oil & Gas Operator | Aug 1992 |
| 28182 | Terry Enterprises, Inc. | West Columbia, TX 77486 | Oil & Gas Operator | May 2024 |
| 28183 | Terry Jack | Konawa, OK 74849-0337 | Oil Operator | Feb 2012 |
| 28184 | Terry John Trust | Aurora, CO 80012-5112 | Oil & Gas Operator | May 2016 |
| 28185 | Terry Petroleum Company | Houston, TX 77270 | Oil & Gas Operator | Dec 1997 |
| 28186 | Terry Production Co | Stroud, OK 74079-0475 | Oil & Gas Operator | Aug 2008 |
| 28187 | Terry Sims & Associates, Inc. | | Oil Operator | Sep 2009 |
| 28188 | Terry'S Roustabout Service, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | Oct 2002 |
| 28189 | Terry, Lewis D. | Olney, TX 76374 | Oil & Gas Operator | Sep 1995 |
| 28190 | Terry, R. K. | West Columbia, TX 77486 | Oil & Gas Operator | May 2024 |
| 28191 | Tervita, LLC | | Oil Operator | May 2021 |
| 28192 | Terzan Energy II LLC | | Oil & Gas Operator | Jan 2024 |
| 28193 | Tesla Resources, Inc. | | Oil & Gas Operator | Aug 1996 |
| 28194 | Tesoro E&P Company, L.P. | San Antonio, TX 78216 | Oil & Gas Operator | Jan 2000 |
| 28195 | Tesoro Petroleum | | Oil Operator | Mar 1982 |
| 28196 | Tesoro Petroleum Corporation | | Oil & Gas Operator | May 1982 |
| 28197 | Tess Oil Company | Borger, TX 79008 | Oil & Gas Operator | Mar 2008 |
| 28198 | Tessara Petroleum Resources, LLC | Houston, TX 77086 | Oil & Gas Operator | Apr 2020 |
| 28199 | Tessera Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 28200 | Testco Production Company | Watonga, OK 73772-0589 | Oil & Gas Operator | Aug 2013 |