| 2001 | Brazos Operating LLC | Midland, TX 79710 | Gas Operator | Feb 2026 |
| 2002 | Brazos Petroleum | | Oil & Gas Operator | Aug 1995 |
| 2003 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2004 | Brazos Resources, Inc. | College Sta, TX 77840 | Oil & Gas Operator | Dec 1998 |
| 2005 | Brazos River Exploration LLC | Houston, TX 77008 | Oil & Gas Operator | Oct 2024 |
| 2006 | Brazos River LLC | | Oil & Gas Operator | Apr 2002 |
| 2007 | Brazos Valley Operating, LLC | Austin, TX 78738 | Oil & Gas Operator | Feb 2026 |
| 2008 | Brbco, LLC | | Oil & Gas Operator | Dec 2024 |
| 2009 | BRC Operating Company LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 2010 | Brchan Ventures LLC | Bartlesville, OK 74006-0281 | Oil Operator | Dec 2021 |
| 2011 | Brea Canon Oil Co. | | Oil & Gas Operator | Nov 2025 |
| 2012 | Brea Oil Company Inc. | | Oil & Gas Operator | Oct 2001 |
| 2013 | Breakthrough Ventures, LLC | | Oil Operator | Jan 2025 |
| 2014 | Brecca Oil & Gas Operators, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Mar 2003 |
| 2015 | Brecheisen & Lor | | Oil & Gas Operator | Oct 1995 |
| 2016 | Brecheisen & Spooner | Garnett, KS 66032 | Gas Operator | Aug 2009 |
| 2017 | Brecheisen Oil C | | Oil & Gas Operator | Sep 1993 |
| 2018 | Brecheisen Oil Co. | Garnett, KS 66032 | Oil & Gas Operator | Oct 1999 |
| 2019 | Brechtel Energy Corporation | | Oil & Gas Operator | Sep 2008 |
| 2020 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2025 |
| 2021 | Breeden Oil | Albany, TX 76430 | Oil & Gas Operator | Apr 2002 |
| 2022 | Breeze Oil, LLC | Nocona, TX 76255 | Oil Operator | Feb 2026 |
| 2023 | Breeze Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Sep 1993 |
| 2024 | Breeze, James R. | Nocona, TX 76255 | Oil & Gas Operator | Nov 2017 |
| 2025 | Brehm Asset Management, LLC | Frisco, TX 75035 | Oil Operator | Aug 2025 |
| 2026 | Brehm Exploration, Inc. | | Oil & Gas Operator | Mar 1995 |
| 2027 | Brehm Investment Group Inc | | Oil Operator | Jul 1991 |
| 2028 | Brehm Oil | MT. Vernon, IL 62864 | Oil Operator | Jan 1986 |
| 2029 | Breitburn | | Oil & Gas Operator | Sep 2024 |
| 2030 | Breitburn Energy Company LLC | Lakewood, CO 80227 | Oil Operator | Aug 2011 |
| 2031 | Breitburn Florida, LLC | | Oil & Gas Operator | Dec 2024 |
| 2032 | Breitburn Operating Limited Partnership | | Oil & Gas Operator | Aug 2022 |
| 2033 | Breitburn Operating LP | Keithville, LA 71047 | Oil & Gas Operator | Feb 2026 |
| 2034 | Breitenbach Family Farms LLC | Bonner Springs, KS 66012 | Oil & Gas Operator | May 2020 |
| 2035 | Breitling Operating Corporation | Dallas, TX 75201 | Oil & Gas Operator | Aug 2016 |
| 2036 | Breland, Leon | | Oil & Gas Operator | Feb 1991 |
| 2037 | Brenda Oil And Gas Company | Pleasant PLNS, AR 72568 | Oil & Gas Operator | May 2006 |
| 2038 | Brenham Drilling Co. | Flatonia, TX 78941 | Oil & Gas Operator | Feb 2026 |
| 2039 | Brennco Gas Transmission, Inc. | Overland Park, KS 66282 | Gas Operator | Apr 2009 |
| 2040 | Brenneis Energy | Duncan, OK 73533-5415 | Oil & Gas Operator | Sep 2025 |
| 2041 | Brenneis Oil Company | Norman, OK 73072-3963 | Oil & Gas Operator | Aug 2012 |
| 2042 | Brent Baker Oil And Gas Inc | Oklahoma City, OK 73149-2932 | Oil & Gas Operator | Oct 2025 |
| 2043 | Brent Boggs Oil & Gas LLC | Ivydale, WV 25113 | Oil & Gas Operator | Nov 2021 |
| 2044 | Brent Exploration | | Oil & Gas Operator | Dec 1993 |
| 2045 | Brent Exploration, Inc. | | Oil & Gas Operator | Apr 1983 |
| 2046 | Bretagne, G P | Beattyville, KY 41311 | Oil & Gas Operator | Dec 2023 |
| 2047 | Bretagne, LLC | Beattyville, , K 41311 | Oil Operator | Dec 2023 |
| 2048 | Breton Sound Holdings, LLC | | Oil & Gas Operator | Dec 2024 |
| 2049 | Brewer Carroll L | Edmond, OK 73003-0010 | Oil & Gas Operator | Nov 2025 |
| 2050 | Brewer Hazel R | Oologah, OK 74053-3540 | Oil & Gas Operator | Apr 2017 |
| 2051 | Brewer J E | Seminole, OK 74818-0863 | Oil & Gas Operator | Mar 2014 |
| 2052 | Brewer Natural Resources, LLC | Lexington, WV 40508 | Oil & Gas Operator | Dec 2020 |
| 2053 | Brewer Robert A And Karen A | | Oil Operator | Dec 2025 |
| 2054 | Brewer, Freddie P. | Paola, KS 66071 | Oil Operator | Nov 2003 |
| 2055 | Brewton And Martin | | Oil Operator | Dec 1997 |
| 2056 | BRG Lone Star LTD. | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2026 |
| 2057 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 2058 | BRG Petroleum LLC | Tulsa, OK 74136 | Oil & Gas Operator | Dec 2025 |
| 2059 | BRG Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2020 |
| 2060 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | Dec 2025 |
| 2061 | Brian C. Register | | Oil & Gas Operator | Jun 2011 |
| 2062 | Brian Energy | Kilgore, TX 75663 | Oil & Gas Operator | May 2013 |
| 2063 | Brian Energy, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2020 |
| 2064 | Briar Energy Corporation | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 2065 | Briar Hill Energy, Inc. | Harrisville, WV 26362 | Oil & Gas Operator | Dec 2021 |
| 2066 | Briar Hollow Energy Company | Portland, TX 78374 | Oil & Gas Operator | Feb 2026 |
| 2067 | Briar Oil & Gas - Oklahoma 1 LLC | Houston, TX 77027-9392 | Oil & Gas Operator | Dec 2025 |
| 2068 | Briarcreek Operating LLC | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 2069 | Briarwood Energy Co | Akron, OH 43334 | Oil & Gas Operator | Dec 1996 |
| 2070 | Bricar Inc | Oklahoma City, OK 73108 | Oil & Gas Operator | Nov 1998 |
| 2071 | Brichacek Jerry Lee | Drumright, OK 74030-9777 | Oil & Gas Operator | Jan 2020 |
| 2072 | Brickley Enterprises, LLC | Eldorado, KS 67042 | Oil Operator | Sep 2025 |
| 2073 | Bricktown Energy LLC | Oklahoma City, OK 73112-5468 | Oil & Gas Operator | Nov 2025 |
| 2074 | Brico Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 2075 | Bridas Energy USA, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Aug 2008 |
| 2076 | Bridge Energy LLC | | Oil & Gas Operator | Dec 2025 |
| 2077 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 2078 | Bridge Oil Development | San Antonio, TX 78209-1181 | Oil & Gas Operator | Dec 1986 |
| 2079 | Bridge Oil Production Co., Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 1993 |
| 2080 | Bridge Point Carson LLC | | Oil & Gas Operator | Dec 2025 |
| 2081 | Bridgecreek Resources (Colorado), LLC | Littleton, CO 80120 | Oil & Gas Operator | Dec 2025 |
| 2082 | Bridgeland Resources LLC | | Oil & Gas Operator | Nov 2025 |
| 2083 | Bridgemark Corporation | | Oil & Gas Operator | Nov 2025 |
| 2084 | Bridgeport Productions, Inc | Edmonton, KY 42129 | Oil Operator | Dec 2023 |
| 2085 | Bridger Oil Inc. | Richmond, TX 77406 | Oil & Gas Operator | Feb 2026 |
| 2086 | Bridger Petroleum Corp | | Oil & Gas Operator | Oct 1999 |
| 2087 | Bridgers, Lindley | | Oil Operator | Nov 2012 |
| 2088 | Bridges Drilling | | Oil & Gas Operator | Jan 2025 |
| 2089 | Bridges Oil Co Etal | | Oil Operator | Dec 1996 |
| 2090 | Bridgestone/Firestone Inc | Akron, OH 44317 | Oil & Gas Operator | Dec 2022 |
| 2091 | Bridon Energy LLC | Yukon, OK 73099 | Oil & Gas Operator | Dec 2025 |
| 2092 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 2093 | Bridwell Oil Company, A General Partnership | Wichita Falls, TX 76307 | Oil Operator | Sep 2025 |
| 2094 | Bridwell Oil Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 2095 | Bridwell Oil MGMT Of Al, LLC | | Oil & Gas Operator | Apr 2006 |
| 2096 | Bridwell, Kayla & Gary | Independence, KS 67301 | Oil & Gas Operator | Dec 2009 |
| 2097 | Brier Oil LLC | Flatgap, KY 41219 | Oil Operator | Dec 2023 |
| 2098 | Brigadier Operating, LLC | Plano, TX 75024 | Oil & Gas Operator | Aug 2017 |
| 2099 | Brigco LLC | Lakin, KS 67860 | Gas Operator | Dec 2023 |
| 2100 | Briggs & Croker Oil, LLC | Wichita Falls, TX 76308 | Oil Operator | Feb 2026 |