| 1001 | Bell, O. M. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2008 |
| 1002 | Bellah & Mathiews | Woodson, TX 76491 | Oil & Gas Operator | Apr 2024 |
| 1003 | Bellah Oil, Inc. | Seymour, TX 76380 | Oil & Gas Operator | Dec 2012 |
| 1004 | Bellows Operating Co., L. C. | Goliad, TX 77963 | Oil & Gas Operator | Apr 2024 |
| 1005 | Bellows, Dewey Oper. Co., LTD. | Refugio, TX 78377 | Oil & Gas Operator | Jul 2013 |
| 1006 | Bellows, Richard | Three Rivers, TX 78071 | Oil & Gas Operator | Nov 2008 |
| 1007 | Bellwether Exploration Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 1008 | Belmac, Inc. | Dallas, TX 75248 | Oil & Gas Operator | Nov 1998 |
| 1009 | Belmar Oil & Gas, Inc. | Milano, TX 76556 | Oil & Gas Operator | Apr 2024 |
| 1010 | Belmont Oil Corporation | Woodland HLS, CA 91365 | Gas Operator | Jul 1996 |
| 1011 | Below Ground Level LLC | Sand Springs, OK 74063 | Oil & Gas Operator | Apr 2024 |
| 1012 | Belter Inc. | Seymour, TX 76380 | Oil Operator | Apr 2024 |
| 1013 | Belvan Corp. | Midland, TX 79701 | Oil & Gas Operator | Jun 1998 |
| 1014 | Benchmark Oil & Gas Co. | Houston, TX 77282 | Oil & Gas Operator | Apr 2024 |
| 1015 | Benchmark Production, LLC | Midland, TX 79701 | Oil Operator | May 2006 |
| 1016 | Benchmark Texas Petroleum, LLC. | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2024 |
| 1017 | Benco Energy Inc | Tionesta, PA 16353-5851 | Oil & Gas Operator | Dec 2002 |
| 1018 | Benco Operating, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2024 |
| 1019 | Bend Petroleum Corp | Muenster, TX 76252 | Oil & Gas Operator | Apr 2024 |
| 1020 | Bendorf Services & Supply Co | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 1021 | Bendorf, Otto Trust | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 1022 | Bengal Petroleum USA, LLC | Austin, TX 78767 | Oil Operator | Apr 2024 |
| 1023 | Benn Oil & Gas | Perryton, TX 79070 | Oil & Gas Operator | Jun 2005 |
| 1024 | Bennett Oil | Dale, TX 78616 | Oil & Gas Operator | Sep 2000 |
| 1025 | Bennett Production Corporation | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 1026 | Bennett Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 1027 | Bennett, M. Brad Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2005 |
| 1028 | Bennett, M. Brad LP | Midland, TX 79710 | Oil & Gas Operator | Jan 2006 |
| 1029 | Bennett, M. Troy, Jr. | Freer, TX 78357 | Oil & Gas Operator | Apr 2024 |
| 1030 | Bennett, Mills Estate | Houston, TX 77057 | Oil & Gas Operator | Sep 1995 |
| 1031 | Bennett, Patricia | Dale, TX 78616 | Oil & Gas Operator | Apr 2024 |
| 1032 | Bennett, R. C., Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
| 1033 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 1034 | Benson Mineral Group Inc | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 1035 | Benson-McCown & Company | Amarillo, TX 79114 | Oil & Gas Operator | Jul 2016 |
| 1036 | Benson-Wyatt Oil Co. Inc. | Austin, TX 78767 | Oil & Gas Operator | Jul 2003 |
| 1037 | Bent Oak Energy Interests, LLC | Houston, TX 77024 | Oil Operator | Oct 2014 |
| 1038 | Bent Wing Energy, LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
| 1039 | Bentgrass Of Texas, Inc. | Abilene, TX 79608 | Oil Operator | Apr 2024 |
| 1040 | Bentley Oil & Gas Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 1041 | Bep Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 1042 | Bepco Operating Co. | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2006 |
| 1043 | Bepco, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2008 |
| 1044 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Apr 2024 |
| 1045 | Berenergy Corporation | Denver, CO 80217 | Oil & Gas Operator | Feb 2024 |
| 1046 | Berexco Inc. | Wichita, KS 67208 | Oil & Gas Operator | Oct 2009 |
| 1047 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Apr 2024 |
| 1048 | Berg Laney & Brown | Smackover, AR 71762 | Oil & Gas Operator | Jul 1995 |
| 1049 | Bergman Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Feb 1994 |
| 1050 | Bering Operating Company, Inc. | Tyler, TX 75701 | Oil & Gas Operator | May 2001 |
| 1051 | Berkshire Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
| 1052 | Berkshire Woodlawn Field, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2007 |
| 1053 | Berry Energy Companies | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 1054 | Berry Oil Comp. | Houston, TX 77002 | Oil & Gas Operator | Jul 2014 |
| 1055 | Berry Petroleum Company | Denver, CO 80202 | Oil & Gas Operator | Feb 2014 |
| 1056 | Berry Petroleum Company LLC | Bakersfield, CA 93311 | Oil & Gas Operator | Feb 2024 |
| 1057 | Berry, Gus | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 1996 |
| 1058 | Berry, O. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 1059 | Berry, Thomas N. & Co. | Stillwater, OK 74076 | Oil & Gas Operator | Feb 2012 |
| 1060 | Bertram Oil Company, Inc. | Corpus Chrsti, TX 78475 | Oil & Gas Operator | Oct 1995 |
| 1061 | Beryl Oil And Gas, LP | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 1062 | Besco Operating, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2024 |
| 1063 | Best Petroleum Explorations,Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2024 |
| 1064 | Besto Oil & Gas, Inc. | Odessa, TX 79768 | Oil & Gas Operator | Oct 2018 |
| 1065 | Bet-Ro, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Apr 2024 |
| 1066 | Beta Gas & Oil, Inc. | Tulsa, OK 74136 | Oil Operator | Jun 2001 |
| 1067 | Beta Oil Corporation | San Antonio, TX 78232 | Oil & Gas Operator | Apr 2024 |
| 1068 | Beta Operating Company LLC | Houston, TX 77210 | Oil & Gas Operator | Apr 2020 |
| 1069 | Beta-Tex, An Oklahoma Corp. | Oklahoma City, OK 73157 | Oil & Gas Operator | Apr 2024 |
| 1070 | Beth Ann Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Jul 2001 |
| 1071 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 1072 | Betwell Oil & Gas Company | Hialeah, FL 33002 | Oil & Gas Operator | Apr 2024 |
| 1073 | Beusa Energy, Inc. | Spring, TX 77380 | Oil & Gas Operator | Apr 2011 |
| 1074 | Bevers SWD, Inc. | Lubbock, TX 79453 | Oil & Gas Operator | Apr 2024 |
| 1075 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 1076 | Bex, Inc. | Nashville, TN 37209 | Oil & Gas Operator | Aug 2007 |
| 1077 | Bexco Operating, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Apr 2024 |
| 1078 | BFD Energy Corporation | Georgetown, TX 78628 | Gas Operator | May 1998 |
| 1079 | BFP Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Apr 2024 |
| 1080 | BGM Production, LLC | Borger, TX 79008 | Oil & Gas Operator | Apr 2024 |
| 1081 | BHB Operating Inc. | Fort Worth, TX 76137 | Oil & Gas Operator | Apr 2024 |
| 1082 | BHP Billiton Pet(Txla Op) Co | Denver, CO 80202 | Oil & Gas Operator | Jul 2019 |
| 1083 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 1084 | Biehl Oil Service'S LLC | Bellevue, TX 76228 | Oil & Gas Operator | Nov 2017 |
| 1085 | Biffle, Jimmy Jack | Muenster, TX 76252 | Oil & Gas Operator | Feb 2017 |
| 1086 | Big "6" Drilling Company | Houston, TX 77063 | Oil & Gas Operator | Mar 2019 |
| 1087 | Big Al Oil And Gas | Levelland, TX 79336 | Oil & Gas Operator | Apr 2024 |
| 1088 | Big Country Pipe & Supply, Inc. | Saint Jo, TX 76265 | Oil Operator | May 2023 |
| 1089 | Big Creek Energy LLC | Kingfisher, OK 73750-3102 | Oil & Gas Operator | Jan 2024 |
| 1090 | Big Creek Operating Company LLC | Houston, TX 77098 | Oil & Gas Operator | Apr 2024 |
| 1091 | Big D Energy Company | New Braunfels, TX 78132 | Oil & Gas Operator | Apr 2024 |
| 1092 | Big Easy Operating Company | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |
| 1093 | Big Iron Excavation, L.L.C. | Blanket, TX 76432 | Oil Operator | Dec 2021 |
| 1094 | Big Lake Corporation | Dallas, TX 75222 | Oil & Gas Operator | Apr 2024 |
| 1095 | Big Lake J J Oil & Gas, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Apr 2024 |
| 1096 | Big Mountain Operating LLC | Decatur, TX 76234 | Oil & Gas Operator | Nov 2021 |
| 1097 | Big Rock Oil LLC | Frisco, TX 75034 | Oil Operator | Apr 2024 |
| 1098 | Big Run Production Company | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 1099 | Big Shell Oil & Gas, Inc. | Taft, TX 78390 | Oil & Gas Operator | Apr 2024 |
| 1100 | Big Sky Energy, LLC | Cody, WY 82414 | Oil & Gas Operator | Jul 2023 |