| 901 | Barbee, R.L. Operating, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Dec 2025 |
| 902 | Barber, B. S. | Kilgore, TX 75662 | Oil & Gas Operator | Nov 1998 |
| 903 | Barbour Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2025 |
| 904 | Barden/Bass O & G Expl. Co. Inc. | Terrell, TX 75160 | Oil & Gas Operator | Mar 2008 |
| 905 | Barger Petroleum Co. | Irving, TX 75061 | Oil & Gas Operator | Jan 2019 |
| 906 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 907 | Bargsley, Coy | Abilene, TX 79603 | Oil & Gas Operator | Dec 2025 |
| 908 | Barj Oil Co. | Brownfield, TX 79316 | Oil & Gas Operator | Dec 2025 |
| 909 | Barker Production Co. | Shamrock, TX 79079 | Oil & Gas Operator | Mar 2010 |
| 910 | Barker Production Co., LP | San Angelo, TX 76904 | Oil & Gas Operator | Dec 2025 |
| 911 | Barker, Rodney | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2012 |
| 912 | Barnes Exploration Co. | Nashville, TN 37209 | Oil & Gas Operator | Feb 1995 |
| 913 | Barnes Mineral Production, LTD. | Hallettsville, TX 77964 | Oil & Gas Operator | Dec 2025 |
| 914 | Barnes Oil & Gas LLC | Nashville, TN 37221 | Oil & Gas Operator | Jun 2017 |
| 915 | Barnes, Jerry B. | Gainesville, TX 76241 | Oil & Gas Operator | Oct 2006 |
| 916 | Barnes, K. A. | Somerset, TX 78069 | Oil & Gas Operator | Jan 2013 |
| 917 | Barnes, Larry Petroleum, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Jul 1996 |
| 918 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 919 | Barnett Oil Investments, Inc. | Hobbs, NM 88240 | Oil & Gas Operator | Mar 1999 |
| 920 | Barnett Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 1999 |
| 921 | Barnett, G. | Graham, TX 76450 | Oil Operator | Dec 2025 |
| 922 | Barnhart Co LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2025 |
| 923 | Barnhart Co. | Houston, TX 77056 | Oil & Gas Operator | Dec 2025 |
| 924 | Barnhill, Monte | Muenster, TX 76252 | Oil Operator | Dec 2025 |
| 925 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Dec 2025 |
| 926 | Baron Energy LTD. | Midland, TX 79702 | Oil & Gas Operator | Oct 2005 |
| 927 | Baron Exploration Company | Edmond, OK 73034 | Oil & Gas Operator | Dec 2025 |
| 928 | Barrett Brothers Oil & Gas, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2020 |
| 929 | Barrett Brothers Oil And Gas | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1995 |
| 930 | Barrett Oil Co. | White Oak, TX 75693 | Oil & Gas Operator | Dec 2023 |
| 931 | Barrett Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Aug 2003 |
| 932 | Barrier Resources,L.L.C. | Cedar Park, TX 78613 | Oil & Gas Operator | Aug 2003 |
| 933 | Barron Operating LLC | Midland, TX 79703 | Oil & Gas Operator | Jun 2011 |
| 934 | Barron Petroleum LLC | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2025 |
| 935 | Barrow Petroleum LLC | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 936 | Barrow-Shaver Resources Co. | Tyler, TX 75703 | Oil & Gas Operator | Dec 2025 |
| 937 | Barry Rock Oil Co. Inc. | Plain Dealing, LA 71064 | Oil & Gas Operator | Dec 2024 |
| 938 | Bartex Energy Corporation | Irving, TX 75060 | Oil & Gas Operator | Apr 1994 |
| 939 | Barton, Howard | Archer City, TX 76351 | Gas Operator | Dec 2025 |
| 940 | Basa Resources, Inc. | Dallas, TX 75254 | Oil & Gas Operator | Dec 2025 |
| 941 | Basal Corporation | Cleburne, TX 76033 | Oil & Gas Operator | Dec 2025 |
| 942 | Base Petroleum | Houston, TX 77096 | Oil & Gas Operator | Jul 1994 |
| 943 | Baseline Oil & Gas Corp. | Houston, TX 77267 | Oil & Gas Operator | Oct 2010 |
| 944 | Basic Earth Science Systems, Inc. | Austin, TX 78714 | Oil & Gas Operator | Apr 2010 |
| 945 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Dec 2025 |
| 946 | Basin Oil & Gas Operating LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2025 |
| 947 | Basin Operating Inc. | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 948 | Basin Well Service Of Odessa,Inc | Odessa, TX 79768 | Oil & Gas Operator | Dec 2025 |
| 949 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 950 | Bass Operating Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 1999 |
| 951 | Bass Petroleum | Austin, TX 78720 | Oil & Gas Operator | Aug 2004 |
| 952 | Bass Petroleum Inc | Austin, TX 78716 | Oil & Gas Operator | Dec 2025 |
| 953 | Bastrop Energy Group | San Antonio, TX 78231 | Oil & Gas Operator | Dec 2025 |
| 954 | Bataa Oil Inc | Arvada, CO 80005 | Oil & Gas Operator | Oct 2025 |
| 955 | Bateman'S Bay Exploration, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Aug 2025 |
| 956 | Batie, Patricia | Odessa, TX 79764 | Oil Operator | Nov 2024 |
| 957 | Batson Ent Ventures L.L.C. | Batson, TX 77519 | Oil Operator | Dec 2025 |
| 958 | Battlecat Oil & Gas, LLC | Houston, TX 77082 | Oil & Gas Operator | Jul 2017 |
| 959 | Battlecat Operating Company, LLC | Houston, TX 77082 | Oil & Gas Operator | Jul 2019 |
| 960 | Batton Oil & Gas, LLC | Spearman, TX 79081 | Oil & Gas Operator | Dec 2025 |
| 961 | Baxter Casing Pullers, Inc. | Midland, TX 79703 | Gas Operator | Dec 2025 |
| 962 | Baxter, D. B. Inc. | Midland, TX 79708 | Oil & Gas Operator | Dec 2025 |
| 963 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 964 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 965 | Baxter, Murphy H. | Houston, TX 77002 | Oil & Gas Operator | Sep 1998 |
| 966 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2025 |
| 967 | Bay Tan Operating, LP | Odessa, TX 79765 | Oil & Gas Operator | Dec 2025 |
| 968 | Bay-Tech Operating Co., Inc. | Tyler, TX 75713 | Oil & Gas Operator | Mar 2024 |
| 969 | Bayer, Arthur | Muenster, TX 76252 | Oil & Gas Operator | Nov 2016 |
| 970 | Bayer, J.H. & Sons Inc | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2008 |
| 971 | Baylor Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2025 |
| 972 | Bayou Bend Petroleum Corporation | Austin, TX 78734 | Oil & Gas Operator | Sep 2006 |
| 973 | Bayou Company, The | Refugio, TX 78377 | Oil & Gas Operator | Dec 2025 |
| 974 | Bayou Oil Co. | Los Angeles, CA 90036 | Gas Operator | Nov 1996 |
| 975 | Bayou Operating Company, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Dec 2025 |
| 976 | Bayridge Texas Corp. | Big Spring, TX 79720 | Oil & Gas Operator | Jul 2004 |
| 977 | Bayshore Exploration LLC | Bellville, TX 77418 | Oil & Gas Operator | Dec 2016 |
| 978 | Bayshore Operating Co. | Ingleside, TX 78362 | Oil & Gas Operator | Mar 2009 |
| 979 | Bayshore Operating Corp., L.L.C. | Luling, TX 78648 | Oil Operator | Dec 2025 |
| 980 | Bayswater Operating Company LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 981 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 982 | Baytex Energy USA, Inc. | Houston, TX 77084 | Oil & Gas Operator | Dec 2025 |
| 983 | Baytex USA Development, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2017 |
| 984 | Baytide Petr. Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Dec 1997 |
| 985 | BB & D Exploration, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jan 2009 |
| 986 | BB-Southtex, LLC | San Antonio, TX 78259 | Oil & Gas Operator | Oct 2024 |
| 987 | BBC Production Company Inc. | Pottstown, PA 19464 | Oil Operator | Dec 2025 |
| 988 | BBC&D Enterprises, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Jan 2024 |
| 989 | Bbe Production Co. | Haskell, TX 79521 | Oil & Gas Operator | May 1997 |
| 990 | Bbe Production, LLC | Haskell, TX 79521 | Oil Operator | Dec 2025 |
| 991 | BBHP Oilfield Services LLC | Kilgore, TX 75662 | Oil Operator | Dec 2025 |
| 992 | BBL Operating Company LLC | Colleyville, TX 76034 | Oil & Gas Operator | Dec 2025 |
| 993 | BBS Oil Field Services Inc | Post, TX 79356 | Oil & Gas Operator | Dec 2025 |
| 994 | BBX Operating, L.L.C. | Austin, TX 78738 | Oil & Gas Operator | Dec 2025 |
| 995 | BC Exploration, LLC | Dallas, TX 75201 | Gas Operator | Dec 2025 |
| 996 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 997 | Bce-Mach II LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2025 |
| 998 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Dec 2025 |
| 999 | BCL Operating, LLC | Houston, TX 77269 | Oil & Gas Operator | Dec 2025 |
| 1000 | BCM Energy Operating LLC | Lafayette, LA 70503 | Oil Operator | Jun 2015 |