| 30001 | Thurston Energy Operating | Vernal, UT 84078 | Oil & Gas Operator | Dec 2015 |
| 30002 | Thurston Texas Operating Co LLC | Dallas, TX 75219 | Oil Operator | Apr 2025 |
| 30003 | Tiara Resources, Inc. | Fort Worth, TX 76179 | Oil & Gas Operator | Apr 1998 |
| 30004 | Tiburon Oil & Gas, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2000 |
| 30005 | Tickel Jim & Cindy | Blackwell, OK 74631-6015 | Oil Operator | Jan 2013 |
| 30006 | Ticony Inc | | Oil & Gas Operator | Dec 1989 |
| 30007 | Tidal Petroleum, Inc. | Schertz, TX 78154 | Oil & Gas Operator | Apr 2025 |
| 30008 | Tidal Wave Energy, Inc. | New Castle, PA 16105 | Oil & Gas Operator | Jun 2022 |
| 30009 | Tidd, Frankie | Neosho Falls, KS 66758 | Oil Operator | Nov 1996 |
| 30010 | Tidd, Gary D. | Piqua, KS 66761 | Oil Operator | May 2016 |
| 30011 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 30012 | Tideland Industries, Inc. | | Oil & Gas Operator | Dec 1989 |
| 30013 | Tidelands Gas Corporation | Flower Mound, TX 75028 | Oil & Gas Operator | Sep 2000 |
| 30014 | Tidelands Oil Corporation | Crystal City, TX 78839 | Oil & Gas Operator | Aug 2003 |
| 30015 | Tidelands Oil Production Co. | | Oil & Gas Operator | Dec 2024 |
| 30016 | Tidelands Resources, Inc. | | Gas Operator | Oct 1990 |
| 30017 | Tidemark Exploration | Tulsa, OK 74170 | Oil & Gas Operator | May 2005 |
| 30018 | Tidemark Exploration Inc | Tulsa, OK 74120 | Oil & Gas Operator | Apr 2019 |
| 30019 | Tidemark Petroleum, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jul 2002 |
| 30020 | Tidewater Co | | Oil & Gas Operator | Sep 1967 |
| 30021 | Tidewater Minerals Corporation | Orange Grove, TX 78372 | Oil & Gas Operator | Apr 2025 |
| 30022 | Tidewater Operating Co Inc | Tulsa, OK 74136-6308 | Oil & Gas Operator | Jan 2025 |
| 30023 | Tidewater Resources Corporation | Memphis, TN 38138 | Gas Operator | Feb 2025 |
| 30024 | Tideway Oil Programs, Inc. | | Oil & Gas Operator | Oct 1980 |
| 30025 | Tidlow | Santa Fe, NM 87508 | Oil & Gas Operator | Dec 2007 |
| 30026 | Tidmore, Ann | Albany, TX 76430 | Oil & Gas Operator | Apr 2025 |
| 30027 | Tidwell Oil LLC | Roff, OK 74865 | Oil Operator | Feb 2022 |
| 30028 | Tidwell Production Company | Sonora, TX 76950 | Oil & Gas Operator | Apr 2025 |
| 30029 | Tierra Mineral Development, L.C. | Dallas, TX 75244 | Oil & Gas Operator | Oct 1994 |
| 30030 | Tierra Petroleum Corp. | | Oil & Gas Operator | Jun 1987 |
| 30031 | Tiffany Gas Co | Farmington, NM 87499 | Oil Operator | Jan 2010 |
| 30032 | Tigco Oil & Gas Co., Inc. | | Oil & Gas Operator | Nov 2014 |
| 30033 | Tiger Development LLC | | Oil & Gas Operator | Aug 2019 |
| 30034 | Tiger Energy Operating, LLC | Los Angeles, CA 90025 | Oil & Gas Operator | Jun 2019 |
| 30035 | Tiger Eye Resources LLC | Hockley, TX 77447-6911 | Oil Operator | Oct 2012 |
| 30036 | Tiger Flats Production Co Inc | | Gas Operator | Sep 1994 |
| 30037 | Tiger Mountain Gas & Oil | Oklahoma City, OK 73118 | Gas Operator | Sep 1999 |
| 30038 | Tiger Oil Company | Dallas, TX 75221 | Oil & Gas Operator | May 2007 |
| 30039 | Tiger Oil International, Inc | | Oil & Gas Operator | Dec 1978 |
| 30040 | Tiger Oil, Inc. | Canal Wincheste, OH 43110 | Oil & Gas Operator | Dec 2007 |
| 30041 | Tiger Petroleum | | Oil Operator | Sep 2002 |
| 30042 | Tiger Production Company, LLC | | Oil & Gas Operator | Aug 2021 |
| 30043 | Tiger Resources, L.L.C. | Houston, TX 77070 | Oil & Gas Operator | Feb 2004 |
| 30044 | Tiger Trucks Inc | Seminole, OK 74868 | Oil & Gas Operator | Feb 2025 |
| 30045 | Tigges Oil LLC | | Oil & Gas Operator | Dec 2022 |
| 30046 | Tightrock Enterprises, Inc. | Trinidad, TX 75163 | Oil Operator | Apr 2025 |
| 30047 | Tigner Walker | | Oil & Gas Operator | Dec 2021 |
| 30048 | Tigner Walker Et Al | | Oil & Gas Operator | Aug 2000 |
| 30049 | Tigrett, Robert L. Oil & Gas Co. | Pampa, TX 79065 | Oil & Gas Operator | Dec 2013 |
| 30050 | Tigrett, Terry A. Jr. | | Oil & Gas Operator | Oct 1980 |
| 30051 | Tiki Oil & Gas, LLC | Cisco, TX 76437 | Oil Operator | Apr 2025 |
| 30052 | Tilden Marcellus LLC | Houston, TX 77024-1358 | Gas Operator | May 2022 |
| 30053 | Tilford Pinson Exploration LLC | Edmond, OK 73003 | Oil & Gas Operator | Jan 2025 |
| 30054 | Tilghman Operating, LLC. | | Oil & Gas Operator | Feb 2025 |
| 30055 | Tilley Matt Dba Tilley Oil Co | Hominy, OK 74035 | Oil & Gas Operator | Jan 2025 |
| 30056 | Tilley Oil & Gas, Inc. | Oklahoma City, OK 73172 | Oil & Gas Operator | Apr 2025 |
| 30057 | Tilley Oil Inc | Velma, OK 73491 | Oil & Gas Operator | Feb 2025 |
| 30058 | Tillman A. Rousse | | Oil Operator | Jan 1990 |
| 30059 | Tillman A. Rousse, Inc. | | Oil Operator | Apr 2001 |
| 30060 | Tillman Consulting LLC Dba B & C Operating | Mustang, OK 73064-8195 | Oil Operator | Jan 2022 |
| 30061 | Tillman J. McIntyre | | Oil Operator | Dec 1987 |
| 30062 | Tillman, Jack Equipment Co. | Holliday, TX 76366 | Oil & Gas Operator | Sep 2004 |
| 30063 | Tilmon Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Sep 2012 |
| 30064 | Tilton Oil & Gas | Lowell, OH 45744 | Oil & Gas Operator | Dec 2024 |
| 30065 | Tim Brookover | | Oil & Gas Operator | Dec 2005 |
| 30066 | Timber Creek Operating LLC | Granbury, TX 76049 | Oil & Gas Operator | Apr 2025 |
| 30067 | Timber Hill Energy | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 2011 |
| 30068 | Timbercreek Oil Company LLC | Healdton, OK 73438 | Oil Operator | Jan 2025 |
| 30069 | Timberlake Energy Corporation | Cypress, TX 77429 | Oil Operator | Nov 2013 |
| 30070 | Timberline Energy Inc | Franklin, PA 16323-0269 | Oil & Gas Operator | Dec 2023 |
| 30071 | Timberline Oil & | | Oil & Gas Operator | Jul 1995 |
| 30072 | Timberline Oil & Gas | | Oil & Gas Operator | Sep 1995 |
| 30073 | Timberline Oil & Gas Corporation | Rapid City, SD 57702 | Oil & Gas Operator | Dec 2024 |
| 30074 | Timberline Oil & Gas, LLC | Seminole, TX 79360 | Oil Operator | Dec 2024 |
| 30075 | Timberline Production Company LLC | Casper, WY 82601 | Oil & Gas Operator | Oct 2020 |
| 30076 | Timberwolf Energy, Inc. | Houston, TX 77042 | Oil & Gas Operator | Apr 2025 |
| 30077 | Timbuck Resources LLC | Fredericktown, OH 43019-0117 | Oil & Gas Operator | Dec 2005 |
| 30078 | Timco Oil Co. | | Oil & Gas Operator | Dec 1987 |
| 30079 | Time Energy, L.L.C. | | Oil & Gas Operator | Nov 2020 |
| 30080 | Timka Resources LTD | | Oil & Gas Operator | Mar 2025 |
| 30081 | Timn Oil Co. | Lubbock, TX 79424 | Oil & Gas Operator | Aug 1997 |
| 30082 | Timothy Chambers | Punxsutawney, PA 15767-1821 | Gas Operator | Dec 2024 |
| 30083 | Tindall Operating Company | Englewood, CO 80112 | Oil & Gas Operator | Nov 2024 |
| 30084 | Tindle Petroleum LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2023 |
| 30085 | Tindol Jr Robert | Ryan, OK 73565 | Oil Operator | Oct 2009 |
| 30086 | Tingue, Jeffrey L. | Delevan, NY 14042 | Gas Operator | Dec 2023 |
| 30087 | Tinsmon, J. Corry | Wichita, KS 67226 | Oil Operator | Dec 2009 |
| 30088 | Tipco | Shreveport, LA 71104-3047 | Oil & Gas Operator | May 1988 |
| 30089 | Tipco Operating Co. | Marshall, TX 75671 | Oil & Gas Operator | Apr 2025 |
| 30090 | Tipka Bartlo Oil & Gas Co | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 1988 |
| 30091 | Tipka Energy Devlopment Company | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 2020 |
| 30092 | Tipka William N | Dover, OH 44622 | Oil & Gas Operator | Dec 1988 |
| 30093 | Tipperary Oil & Gas Corp | Denver, CO 80202 | Oil & Gas Operator | May 2014 |
| 30094 | Tipperary Petro Co | Midland, TX 79701 | Oil & Gas Operator | Dec 1993 |
| 30095 | Tipps Kenneth L | | Oil & Gas Operator | Jun 2000 |
| 30096 | Tipton & Denton | Dallas, TX 752196406 | Oil & Gas Operator | Sep 2019 |
| 30097 | Tipton Denton & Denton | Hobbs, NM 88240 | Oil & Gas Operator | Sep 2019 |
| 30098 | Tipton Oil & Gas Acquisitions, Inc. | Irving, TX 75038 | Oil & Gas Operator | Sep 2010 |
| 30099 | Titan Allen Dome LLC | Houston, TX 77056 | Oil Operator | Feb 2015 |
| 30100 | Titan Energy Corp | Thomasville, AL 36784 | Oil & Gas Operator | Aug 2009 |