| 29901 | Tri-Ex Corporation | | Oil & Gas Operator | Jan 1985 |
| 29902 | Tri-Ex Petroleum, L.P. | Amarillo, TX 79101 | Oil & Gas Operator | Jan 2013 |
| 29903 | Tri-Force Operating, L.L.C. | Royse City, TX 75189 | Oil & Gas Operator | Jul 2025 |
| 29904 | Tri-J Tubulars, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1996 |
| 29905 | Tri-K Production Company, Inc. | Olney, TX 76374 | Oil & Gas Operator | Apr 1996 |
| 29906 | Tri-L Oil Co. | | Oil Operator | Sep 2015 |
| 29907 | Tri-Par Exploration, Inc. | | Oil Operator | Oct 2001 |
| 29908 | Tri-Production Company | | Oil Operator | Apr 1994 |
| 29909 | Tri-Quest Resources | | Oil & Gas Operator | Feb 1995 |
| 29910 | Tri-State Exploration & Prod Inc | Marshall, TX 75671 | Oil & Gas Operator | Aug 2003 |
| 29911 | Tri-State Pipeline Service Inc | Ninnekah, OK 73067-0189 | Oil & Gas Operator | Mar 2011 |
| 29912 | Tri-State Resources, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Sep 2012 |
| 29913 | Tri-State Sales & Production | Rodessa, LA 71069 | Oil & Gas Operator | Dec 2008 |
| 29914 | Tri-Tex Exploration LTD | Abilene, TX 79608 | Oil Operator | Apr 2019 |
| 29915 | Tri-Union Development Corp. | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 29916 | Tri-Unity Inc | Sand Springs, OK 74063-4401 | Oil & Gas Operator | Jun 2009 |
| 29917 | Tri-Valley Oil & Gas Co. | | Oil & Gas Operator | Apr 2025 |
| 29918 | Tri-W Oil | Luling, TX 78648 | Oil Operator | Jul 2025 |
| 29919 | Tri-W Oil, Inc. | Luling, TX 78648 | Oil Operator | Apr 2007 |
| 29920 | Triad Energy Corp. Of Texas | Houston, TX 77057-2696 | Oil & Gas Operator | Sep 2014 |
| 29921 | Triad Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Oct 2011 |
| 29922 | Triad Energy, Inc. | Oklahoma City, OK 73105-1401 | Oil & Gas Operator | May 2025 |
| 29923 | Triad Hunter, LLC | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 29924 | Triad O&G, LLC | Dallas, TX 75225 | Oil & Gas Operator | Jul 2025 |
| 29925 | Triad Oil & Gas Co Inc | | Oil & Gas Operator | Jun 1994 |
| 29926 | Triad Resources Inc | Spring, TX 77389 | Oil & Gas Operator | Dec 2020 |
| 29927 | Triag Energy Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2014 |
| 29928 | Triana Energy LLC | Charleston, WV 25301-2815 | Gas Operator | Nov 2018 |
| 29929 | Triangle Development Co | Mahtomedi, MN 55115 | Gas Operator | Feb 1982 |
| 29930 | Triangle Energy Co. | Pampa, TX 79066 | Oil & Gas Operator | Nov 2000 |
| 29931 | Triangle Interprises Inc | Justin, TX 76247-0598 | Oil & Gas Operator | Jun 2015 |
| 29932 | Triangle J Oil Company | | Oil & Gas Operator | Mar 2007 |
| 29933 | Triangle Oil & G G Cornwell | | Oil & Gas Operator | Nov 1981 |
| 29934 | Triangle Oil Of Hosston | | Oil Operator | Jul 2014 |
| 29935 | Triangle Oil Producers, Inc. | | Oil & Gas Operator | Jun 1998 |
| 29936 | Triangle Operating Co., Inc. | | Gas Operator | Jan 2000 |
| 29937 | Triangle P Development Corp. | Bronte, TX 76933 | Oil & Gas Operator | Jul 2025 |
| 29938 | Triangle Three Resources L.L.C. | Dallas, TX 75240 | Oil & Gas Operator | Jul 2025 |
| 29939 | Triangle USA Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 2021 |
| 29940 | Triax Energy LLC | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2018 |
| 29941 | Tribal Oil Company | | Oil & Gas Operator | Dec 1981 |
| 29942 | Tribar Resources LLC | | Oil Operator | Jun 2025 |
| 29943 | Tribune Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 29944 | Tricentrol Resources Inc | Englewood, CO 80111 | Oil & Gas Operator | Jun 1984 |
| 29945 | Trich Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2025 |
| 29946 | Trichel Contracting Company | | Oil & Gas Operator | Sep 1987 |
| 29947 | Trickle Down Oil, Inc. | | Oil & Gas Operator | Feb 2016 |
| 29948 | Trico Energy Corporation | | Oil Operator | May 1984 |
| 29949 | Trico Energy LLC | Hager Hill, KY 41222 | Oil Operator | Dec 2018 |
| 29950 | Trico Oil & Gas Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Jul 2025 |
| 29951 | Trico Oil Co., Inc. | | Gas Operator | Nov 1978 |
| 29952 | Trico/Tiger Development LLC | | Gas Operator | Dec 2017 |
| 29953 | Trident Corporation | Woodsboro, TX 78393 | Oil & Gas Operator | Jul 2025 |
| 29954 | Trident Oil And Gas Corp. | | Oil & Gas Operator | Sep 2000 |
| 29955 | Tridon Oil Inc | Lafayette, LA 70505-2305 | Gas Operator | Dec 2013 |
| 29956 | Triesco, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 1996 |
| 29957 | Triexco Inc | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2012 |
| 29958 | Triforce Energy LLC | Littleton, CO 80122 | Oil & Gas Operator | Jul 2025 |
| 29959 | Trigeo Energy, LLC | Addison, TX 75001 | Oil & Gas Operator | Jul 2025 |
| 29960 | Trigg Drilling Company Inc | Oklahoma City, OK 73105 | Oil & Gas Operator | Jan 2013 |
| 29961 | Trigg Exploratio | | Gas Operator | Feb 1992 |
| 29962 | Trigg Oil Mining Corporation | | Oil & Gas Operator | Dec 2007 |
| 29963 | Trigger'S Disposal LLC | Sayre, OK 73662-2913 | Oil Operator | Sep 2022 |
| 29964 | Trigo Oil And Gas, LLC | Amarillo, TX 79101 | Oil & Gas Operator | Mar 2022 |
| 29965 | Trigon Exploration, Inc. | | Oil & Gas Operator | Jan 1999 |
| 29966 | Triken Oil & Gas | | Oil & Gas Operator | Feb 1995 |
| 29967 | Trilliant Energy Texas LTD | Tulsa, OK 74135-0767 | Oil & Gas Operator | Jun 2020 |
| 29968 | Trilogy Natural Resources LLC | Edmond, OK 73025 | Oil Operator | May 2025 |
| 29969 | Trilogy Operating, Inc. | Midland, TX 79708 | Oil & Gas Operator | Jul 2025 |
| 29970 | Trimble & Maclaskey Oil LLC | Gridley, KS 66852 | Oil Operator | Mar 2025 |
| 29971 | Trimble, Don G Dba Trimble Production Company | Houston, TX 77066 | Oil Operator | Jan 2025 |
| 29972 | Trimble, IVal L. | Gridley, KS 66852 | Oil Operator | Dec 2019 |
| 29973 | Trimont Energy LLC | Pittsburgh, PA 15211-1205 | Oil & Gas Operator | Dec 2016 |
| 29974 | Trineha Inc | Ardmore, OK 73402-2478 | Oil & Gas Operator | Jun 2009 |
| 29975 | Trinidad Energy, LLC | Midland, TX 79708 | Oil & Gas Operator | Jul 2025 |
| 29976 | Trinidad Exploration, Inc. | Tyler, TX 75703 | Oil & Gas Operator | Mar 2008 |
| 29977 | Trinidad Petroleum Corporation | | Oil & Gas Operator | Apr 1990 |
| 29978 | Trinidad Petroleum, Inc. | Austin, TX 78711 | Oil & Gas Operator | Jul 2025 |
| 29979 | Trinidad Resources, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2025 |
| 29980 | Trinity Bay Oil & Gas, Inc. | Lubbock, TX 79416 | Oil & Gas Operator | Jul 2025 |
| 29981 | Trinity Energy Corp | Gibsonia, PA 15044-9106 | Oil & Gas Operator | Dec 2007 |
| 29982 | Trinity Energy Resources Inc | Houston, TX 77079 | Oil & Gas Operator | Aug 2005 |
| 29983 | Trinity Eor, LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2019 |
| 29984 | Trinity Exploration Co | | Oil Operator | Dec 1998 |
| 29985 | Trinity Gas Corporation | Edmond, OK 73003 | Oil & Gas Operator | Jul 2025 |
| 29986 | Trinity Gas Storage, LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 2025 |
| 29987 | Trinity Group LLC | | Oil Operator | Dec 1997 |
| 29988 | Trinity Minerals&Operating Corp. | Abilene, TX 79605 | Oil & Gas Operator | Dec 1995 |
| 29989 | Trinity Oil & Gas Dev Inc | | Oil & Gas Operator | Jun 1994 |
| 29990 | Trinity Oil & Gas Inc | Pauls Valley, OK 73075 | Oil Operator | Apr 2025 |
| 29991 | Trinity Oil & Gas Producers LLC | Allen, OK 74825 | Oil & Gas Operator | Feb 2025 |
| 29992 | Trinity Operating & Prod., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 29993 | Trinity Operating (Usg), LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2025 |
| 29994 | Trinity Resources, Inc. | Houston, TX 77277 | Oil & Gas Operator | May 2020 |
| 29995 | Trinity River Energy Oper, LLC | Houston, TX 77008 | Oil & Gas Operator | May 2018 |
| 29996 | Trinity River Energy, LLC | Houston, TX 77094 | Oil & Gas Operator | Aug 2015 |
| 29997 | Trinity River Operating Company | Oklahoma City, OK 73147 | Oil & Gas Operator | Jul 2025 |
| 29998 | Trinity University & Closuit | Loco Hills, NM 88255 | Oil & Gas Operator | Dec 2002 |
| 29999 | Trio Consulting & Management,LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 30000 | Trio Consulting & MGMT LLC | Wichita Falls, TX 76301 | Oil Operator | May 2025 |