| 29001 | Transpacific Energy, LLC | Katy, TX 77450 | Oil & Gas Operator | May 2024 |
| 29002 | Transpetco I | Shreveport, LA 71101 | Oil & Gas Operator | May 2009 |
| 29003 | Transtexas Gas Corporation | Houston, TX 77265 | Oil & Gas Operator | Aug 2005 |
| 29004 | Transworld Expl. & Prod., Inc. | | Oil & Gas Operator | Mar 2004 |
| 29005 | Transworld Systems Petroleum Inc | Denver, CO 80202 | Oil & Gas Operator | Mar 2024 |
| 29006 | Trap Rock Oil Company | Cambridge, MA 02138 | Oil & Gas Operator | Nov 2005 |
| 29007 | Trap Rock Oil, LTD. | Houston, TX 77027 | Oil & Gas Operator | May 2024 |
| 29008 | Trapp Oil Oper - | | Oil Operator | Aug 1989 |
| 29009 | Traton Operating Company | Kingwood, TX 77339 | Oil & Gas Operator | Mar 2019 |
| 29010 | Travco Well Servicing LLC | | Oil Operator | Jan 2024 |
| 29011 | Travelers Oil Company | Amarillo, TX 79102 | Oil & Gas Operator | May 2024 |
| 29012 | Travell Energy, Inc | | Oil Operator | Dec 2010 |
| 29013 | Traver Oil & Gas Corporation | | Oil & Gas Operator | Sep 2000 |
| 29014 | Traver Oil Company | | Oil & Gas Operator | Sep 2000 |
| 29015 | Traver-Patterson Petroleum Inc | | Oil & Gas Operator | Apr 1990 |
| 29016 | Travers Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | May 2024 |
| 29017 | Traverse Oil Co And Federal Oil Co | | Oil & Gas Operator | Nov 1983 |
| 29018 | Traverse Oil Co. | | Oil & Gas Operator | Nov 1983 |
| 29019 | Travis | Houston, TX 77057 | Oil Operator | May 2024 |
| 29020 | Travis E. Duren | | Oil Operator | Jul 1995 |
| 29021 | Travis Oil Co | Los Angeles, CA 90024 | Oil Operator | Jan 1990 |
| 29022 | Travis Operating, LLC | Kingwood, TX 77345 | Oil & Gas Operator | May 2024 |
| 29023 | Travis Peak Resources LLC | Austin, TX 78759-7279 | Oil & Gas Operator | Jan 2024 |
| 29024 | Travis, J. J., Trustee | Rockport, TX 78382 | Oil & Gas Operator | Dec 1996 |
| 29025 | Traxler, Joyce | Le Roy, NY 14482 | Gas Operator | Dec 2022 |
| 29026 | Traylor Equipment, LLC | Smackover, AR 71762 | Oil Operator | Aug 2007 |
| 29027 | Traynor Oil & Gas Inc | Claremont, CA 91711-2837 | Oil & Gas Operator | Jan 2024 |
| 29028 | TRC Cypress Group LLC | | Oil & Gas Operator | Feb 2024 |
| 29029 | TRC Operating Company Inc. | | Oil & Gas Operator | Mar 2024 |
| 29030 | Tre'J Exploration, Inc. | | Gas Operator | Dec 1991 |
| 29031 | Treadaway Oil Co. | Balmorhea, TX 79718 | Oil & Gas Operator | May 2024 |
| 29032 | Treadstone Energy Partners, LLC | Houston, TX 77070 | Oil & Gas Operator | Jun 2016 |
| 29033 | Treadstone Energy PRTNR Op, LLC | Katy, TX 77494 | Oil & Gas Operator | May 2024 |
| 29034 | Treat Howard | Okmulgee, OK 74447 | Oil & Gas Operator | Oct 2014 |
| 29035 | Trebole Operating Company | | Oil Operator | Jul 1979 |
| 29036 | Treco Oil Company | Albany, TX 76430 | Oil & Gas Operator | May 2024 |
| 29037 | Tredegar Properties, Inc. | | Oil Operator | Jun 1990 |
| 29038 | Tree Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | May 2024 |
| 29039 | Trees Oil Compan | | Oil Operator | Jan 1995 |
| 29040 | Trejim Operators, LLC | Pampa, TX 79065 | Oil & Gas Operator | May 2024 |
| 29041 | Trek Aec, LLC | Wichita, KS 67202 | Oil & Gas Operator | Jan 2024 |
| 29042 | Trek Exploration, Inc. | Amarillo, TX 79109 | Oil & Gas Operator | May 2024 |
| 29043 | Trek Oil & Gas, Inc | Houston, TX 77002 | Oil Operator | Mar 1998 |
| 29044 | Trek Operating, LLC | Tulsa, OK 741520098 | Oil & Gas Operator | Mar 2021 |
| 29045 | Trek Resources, Inc. | Dallas, TX 75207 | Oil & Gas Operator | May 2024 |
| 29046 | Tremo Corporation | Toronto, KS 66777 | Oil Operator | May 1998 |
| 29047 | Trenchco Inc | Shawnee, OK 74802-3577 | Oil & Gas Operator | Apr 2015 |
| 29048 | Trend Exploration Company | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 29049 | Trend Exploration I LLC | Midland, TX 79701 | Oil & Gas Operator | May 2011 |
| 29050 | Trend Gas & Oil Inc | Jenks, OK 74037 | Oil & Gas Operator | Dec 2000 |
| 29051 | Trend Oil Co | Petaluma, CA 94954 | Oil & Gas Operator | Feb 2017 |
| 29052 | Trendsetter Production Co, Inc | | Oil & Gas Operator | Jul 2008 |
| 29053 | Trendwell Energy Corporation | | Oil & Gas Operator | Feb 2024 |
| 29054 | Trenmor Gas & Oil Co LLC | Granville, OH 43023 | Oil Operator | Dec 2022 |
| 29055 | Trenna Oil Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2013 |
| 29056 | Trenon Oil & Gas Inc | Oklahoma City, OK 73112-4279 | Oil & Gas Operator | Sep 1996 |
| 29057 | Trepco Production Company, Inc. | Yukon, OK 73099 | Oil & Gas Operator | Jan 2024 |
| 29058 | Trepel Petroleum Exploration & | | Oil & Gas Operator | Apr 2014 |
| 29059 | Tres Azores Oil & Gas, Inc. | Fort Worth, TX 76185 | Oil & Gas Operator | Aug 2003 |
| 29060 | Tres Operating Co., LLC | Katy, TX 77494 | Oil Operator | May 2024 |
| 29061 | Tres Piedras, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1999 |
| 29062 | Tres Roughneckas WTX LLC | Houston, TX 77009 | Oil Operator | May 2024 |
| 29063 | Tresami, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | May 2024 |
| 29064 | Tresco Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 29065 | Tresor Petroleum | | Oil & Gas Operator | Sep 1987 |
| 29066 | Tressler John R & IVa M | | Oil Operator | Apr 1989 |
| 29067 | Trey Exploration, Inc. | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2020 |
| 29068 | Trey Operating Company | MC Camey, TX 79752 | Oil Operator | Jan 2016 |
| 29069 | Trey Resources Inc. | Midland, TX 79710 | Oil & Gas Operator | Jan 2024 |
| 29070 | Tri "M" Oil & Gas | Muenster, TX 76252 | Oil & Gas Operator | May 2024 |
| 29071 | Tri City Oil Co., LLC | Baytown, TX 77520 | Oil Operator | May 2024 |
| 29072 | Tri Energy Resources, Inc. | Norman, OK 73070 | Oil Operator | May 2024 |
| 29073 | Tri Family Oil Co | | Oil Operator | Dec 2023 |
| 29074 | Tri Investment Company | | Oil Operator | Mar 1980 |
| 29075 | Tri Production Inc | Healdton, OK 73438-0177 | Oil & Gas Operator | Jan 2024 |
| 29076 | Tri Sportsmen Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | May 2024 |
| 29077 | Tri Star Operating, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Jan 2002 |
| 29078 | Tri United, Inc | Hays, KS 67601 | Oil Operator | Jan 2024 |
| 29079 | Tri-Am Operating Company | Frankston, TX 75763 | Oil & Gas Operator | May 2024 |
| 29080 | Tri-C Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Aug 2009 |
| 29081 | Tri-C Resources, LLC | Houston, TX 77024 | Oil & Gas Operator | May 2024 |
| 29082 | Tri-City Drilling Joint Venture | Belpre, OH 45714 | Oil & Gas Operator | Dec 2023 |
| 29083 | Tri-City Energy Inc | | Oil Operator | Mar 2014 |
| 29084 | Tri-County Oil & Gas, Inc. | Fairmont, WV 26555-0000 | Oil & Gas Operator | Dec 2019 |
| 29085 | Tri-County Operating Company | Seguin, TX 78156 | Gas Operator | Feb 1997 |
| 29086 | Tri-Crude Oil & Gas | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 29087 | Tri-Ex Corporation | | Oil & Gas Operator | Jan 1985 |
| 29088 | Tri-Ex Petroleum, L.P. | Amarillo, TX 79101 | Oil & Gas Operator | Jan 2013 |
| 29089 | Tri-Force Operating, L.L.C. | Royse City, TX 75189 | Oil & Gas Operator | May 2024 |
| 29090 | Tri-J Tubulars, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1996 |
| 29091 | Tri-K Production Company, Inc. | Olney, TX 76374 | Oil & Gas Operator | Apr 1996 |
| 29092 | Tri-L Oil Co. | | Oil Operator | Sep 2015 |
| 29093 | Tri-Par Exploration, Inc. | | Oil Operator | Oct 2001 |
| 29094 | Tri-Production Company | | Oil Operator | Apr 1994 |
| 29095 | Tri-Quest Resources | | Oil & Gas Operator | Feb 1995 |
| 29096 | Tri-State Exploration & Prod Inc | Marshall, TX 75671 | Oil & Gas Operator | Aug 2003 |
| 29097 | Tri-State Pipeline Service Inc | Ninnekah, OK 73067-0189 | Oil & Gas Operator | Mar 2011 |
| 29098 | Tri-State Resources, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Sep 2012 |
| 29099 | Tri-State Sales & Production | Rodessa, LA 71069 | Oil & Gas Operator | Dec 2008 |
| 29100 | Tri-Tex Exploration LTD | Abilene, TX 79608 | Oil Operator | Apr 2019 |