| 28901 | Tenison Oil Comp | | Oil Operator | Jan 1993 |
| 28902 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Jul 2025 |
| 28903 | Tenk, Lawrence O. | Ottawa, KS 66067 | Oil & Gas Operator | Oct 1998 |
| 28904 | Tenmile Land Limited Liability Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 28905 | Tenneco Inc. | | Oil & Gas Operator | Jun 1989 |
| 28906 | Tenneco Oil Comp | | Oil & Gas Operator | Aug 1995 |
| 28907 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Apr 2025 |
| 28908 | Tenneco Ventures Corporation | | Oil & Gas Operator | Feb 1996 |
| 28909 | Tenneco West, Inc. | | Oil & Gas Operator | Dec 1983 |
| 28910 | Tennessee Gas Pipeline Company | | Oil & Gas Operator | Dec 2011 |
| 28911 | Tennessee Gas Pipeline Company, LLC | Houston, TX 77002 | Oil Operator | Dec 2024 |
| 28912 | Tennessee Properties, Inc | | Oil Operator | Dec 2014 |
| 28913 | Tennyson Oil & Gas | Muskogee, OK 74401 | Oil Operator | Apr 2025 |
| 28914 | Tenpas, Bruce | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 28915 | Tensas Delta Expl Co., LLC | Shreveport, LA 71101-5323 | Oil & Gas Operator | Jul 2021 |
| 28916 | Tensas Delta Explo. Co., LLC | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2011 |
| 28917 | Tensas Delta Land Company | | Oil & Gas Operator | Apr 2002 |
| 28918 | Tensas Exploraton & Production Co LLC | | Oil & Gas Operator | Nov 2009 |
| 28919 | Teocali Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 28920 | Teocalli Exploration LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | May 2025 |
| 28921 | Teon Management, LLC | Midland, TX 79704 | Oil & Gas Operator | Mar 2020 |
| 28922 | Tep Barnett USA, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 28923 | Tepco Resources, Inc. | Houston, TX 77027 | Oil & Gas Operator | Sep 2004 |
| 28924 | Tepco, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 1999 |
| 28925 | Tepee Petroleum Company, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2014 |
| 28926 | Ter Ex Inc | Butler, PA 16002-8638 | Gas Operator | Dec 1994 |
| 28927 | Terex Energy Corporation | Casper, WY 82602 | Oil & Gas Operator | Aug 2019 |
| 28928 | Terhune Harry C | Bartlesville, OK 74003 | Oil Operator | Feb 1997 |
| 28929 | Terhune Opal S | Bartlesville, OK 74006-0472 | Oil Operator | Apr 2025 |
| 28930 | Term Energy Corp. | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 28931 | Termo Co. Of Texas | | Oil & Gas Operator | Dec 1986 |
| 28932 | Terra Energy Co LLC | | Oil & Gas Operator | Apr 2018 |
| 28933 | Terra Energy LTD | | Oil & Gas Operator | Apr 2018 |
| 28934 | Terra Energy LTD And Miller Energy Inc And Mille | | Gas Operator | Dec 1998 |
| 28935 | Terra Exploration & Production Co. Inc. | | Oil & Gas Operator | Dec 2009 |
| 28936 | Terra Locus Services | Seguin, TX 78155 | Oil & Gas Operator | Jun 2000 |
| 28937 | Terra Max Energy | | Oil Operator | Mar 1986 |
| 28938 | Terra Production Company | Okemah, OK 74859-5924 | Oil & Gas Operator | Apr 2020 |
| 28939 | Terra Resc Incor | | Oil Operator | Mar 1986 |
| 28940 | Terra Resources, Inc. | Casper, WY 82601 | Oil & Gas Operator | Jun 1990 |
| 28941 | Terrace Petroleum Corporation | Midland, TX 79701 | Oil & Gas Operator | Jul 2013 |
| 28942 | Terrafina Energy, LLC | San Antonio, TX 78280 | Oil & Gas Operator | Jul 2025 |
| 28943 | Terral D Hinds | | Oil Operator | Mar 2012 |
| 28944 | Terrapet Corporation | | Oil & Gas Operator | Jun 2011 |
| 28945 | Terrapin Energy LLC | Okmulgee, OK 74447 | Oil Operator | May 2025 |
| 28946 | Terraquest Corporation | Edmond, OK 73034 | Oil & Gas Operator | Jul 1997 |
| 28947 | Terrascan Drilling Corp | Dublin, OH 43017 | Oil Operator | Dec 2005 |
| 28948 | Terrel Production Co | | Oil & Gas Operator | May 2025 |
| 28949 | Terreland Corporation | Sunray, TX 79086 | Oil & Gas Operator | Oct 2004 |
| 28950 | Terrell Oil & Gas Production Co. | Hamlin, TX 79520 | Oil & Gas Operator | Jul 2025 |
| 28951 | Terrgin Oil & Gas LLC | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2021 |
| 28952 | Terrick Resources | Midland, TX 79708 | Oil & Gas Operator | Jul 2005 |
| 28953 | Terrier Oil Company | | Oil & Gas Operator | Feb 2015 |
| 28954 | Territory Resources LLC | Stillwater, OK 74074-1869 | Oil & Gas Operator | Jun 2025 |
| 28955 | Terrol Energy In | | Oil Operator | Feb 1993 |
| 28956 | Terrol Energy, Inc. | Hygiene, CO 80533 | Oil & Gas Operator | Dec 2006 |
| 28957 | Terronne Petroleum Corporation | | Oil & Gas Operator | Nov 2024 |
| 28958 | Terry D Coan | Youngsville, PA 16371-3608 | Oil & Gas Operator | Dec 2021 |
| 28959 | Terry Development, Inc. | | Oil & Gas Operator | Aug 1992 |
| 28960 | Terry Enterprises, Inc. | West Columbia, TX 77486 | Oil & Gas Operator | Jul 2025 |
| 28961 | Terry Jack | Konawa, OK 74849-0337 | Oil Operator | Feb 2012 |
| 28962 | Terry John Trust | Aurora, CO 80012-5112 | Oil & Gas Operator | May 2016 |
| 28963 | Terry Oil Company LLC | | Oil Operator | Dec 2024 |
| 28964 | Terry Petroleum Company | Houston, TX 77270 | Oil & Gas Operator | Dec 1997 |
| 28965 | Terry Production Co | Stroud, OK 74079-0475 | Oil & Gas Operator | Aug 2008 |
| 28966 | Terry Sims & Associates, Inc. | | Oil Operator | Sep 2009 |
| 28967 | Terry'S Roustabout Service, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | Oct 2002 |
| 28968 | Terry, Lewis D. | Olney, TX 76374 | Oil & Gas Operator | Sep 1995 |
| 28969 | Terry, R. K. | West Columbia, TX 77486 | Oil & Gas Operator | Jul 2025 |
| 28970 | Tervita, LLC | | Oil Operator | May 2021 |
| 28971 | Terzan Energy II LLC | Chandler, OK 74834 | Oil & Gas Operator | Apr 2025 |
| 28972 | Tesla Resources, Inc. | | Oil & Gas Operator | Aug 1996 |
| 28973 | Tesoro E&P Company, L.P. | San Antonio, TX 78216 | Oil & Gas Operator | Jan 2000 |
| 28974 | Tesoro Expl. & Prod. Company | San Antonio, TX 78216 | Gas Operator | Sep 2010 |
| 28975 | Tesoro Petroleum | | Oil Operator | Mar 1982 |
| 28976 | Tesoro Petroleum Corporation | | Oil & Gas Operator | May 1982 |
| 28977 | Tess Oil Company | Borger, TX 79008 | Oil & Gas Operator | Mar 2008 |
| 28978 | Tessara Petroleum Resources, LLC | Houston, TX 77086 | Oil & Gas Operator | Apr 2020 |
| 28979 | Tessera Energy LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2025 |
| 28980 | Testco Production Company | Watonga, OK 73772-0589 | Oil & Gas Operator | Aug 2013 |
| 28981 | Tesuque Oil & Gas LLC | Rockdale, TX 76567 | Oil Operator | Jul 2025 |
| 28982 | Tet Energy | | Oil Operator | Mar 2025 |
| 28983 | Teton Energy Co Inc | Denver, CO 80239 | Oil Operator | Dec 1983 |
| 28984 | Teton Petroleum Corporation | Kerrville, TX 78028 | Oil & Gas Operator | Jul 2025 |
| 28985 | Tetra Oil Company | | Oil & Gas Operator | Apr 2025 |
| 28986 | Tetragon Investments, LLC | Abilene, TX 79604 | Oil Operator | Jul 2014 |
| 28987 | Tettleton, Jon Otis | Nocona, TX 76255 | Oil & Gas Operator | Aug 2003 |
| 28988 | Tettleton, Steven B. | Nocona, TX 76255 | Oil Operator | Jul 2025 |
| 28989 | Tevebaugh MGMT Co | Baden, PA 15005-0123 | Oil & Gas Operator | Dec 2002 |
| 28990 | Tex-Am Petroleum Corp. | Eastland, TX 76448 | Oil & Gas Operator | Jul 2025 |
| 28991 | Tex-Am-Energy Inc. | Dallas, TX 75205 | Oil & Gas Operator | Mar 2008 |
| 28992 | Tex-Ann Oil & Gas Services, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 28993 | Tex-Atic Resources, Inc. | S. Lake Tahoe, CA 96150 | Oil & Gas Operator | Jul 2025 |
| 28994 | Tex-Con-Brehm-Basin Expl. | | Oil & Gas Operator | May 1990 |
| 28995 | Tex-Hio Energy | Terrell, TX 75156 | Oil & Gas Operator | Dec 1997 |
| 28996 | Tex-Lee Operating Company | Giddings, TX 78942 | Oil & Gas Operator | Jul 2025 |
| 28997 | Tex-Oak, Inc. | Oklahoma City, OK 73155 | Oil & Gas Operator | Dec 1995 |
| 28998 | Tex-Ok Energy, Limited Partnership | Cody, WY 82414 | Oil & Gas Operator | May 2025 |
| 28999 | Tex-Ok Energy, LTD Partnership | Cody, WY 82414 | Oil & Gas Operator | Jul 2025 |
| 29000 | Tex-R Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Feb 2021 |