| 1901 | Breitburn Operating, LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 1902 | Breitenbach Family Farms LLC | Bonner Springs, KS 66012 | Oil & Gas Operator | May 2020 |
| 1903 | Breitling Operating Corporation | Dallas, TX 75201 | Oil & Gas Operator | Aug 2016 |
| 1904 | Breland, Leon | | Oil & Gas Operator | Feb 1991 |
| 1905 | Brenda Oil And Gas Company | Pleasant PLNS, AR 72568 | Oil & Gas Operator | May 2006 |
| 1906 | Brenham Drilling Co. | Brenham, TX 77833 | Oil & Gas Operator | Apr 2024 |
| 1907 | Brennco Gas Transmission, Inc. | Overland Park, KS 66282 | Gas Operator | Apr 2009 |
| 1908 | Brenneis Energy | Duncan, OK 73533-5415 | Oil & Gas Operator | Dec 2023 |
| 1909 | Brenneis Oil Company | Norman, OK 73072-3963 | Oil & Gas Operator | Aug 2012 |
| 1910 | Brent Baker Oil And Gas Inc | Oklahoma City, OK 73149-2932 | Oil & Gas Operator | Jan 2024 |
| 1911 | Brent Boggs Oil & Gas LLC | Ivydale, WV 25113 | Oil & Gas Operator | Nov 2021 |
| 1912 | Brent Exploration | | Oil & Gas Operator | Dec 1993 |
| 1913 | Brent Exploration Inc. | | Oil & Gas Operator | Apr 1983 |
| 1914 | Bretagne, G P | Beattyville, KY 41311 | Oil & Gas Operator | Dec 2022 |
| 1915 | Bretagne, LLC | Beattyville, , K 41311 | Oil Operator | Dec 2021 |
| 1916 | Breton Sound Holdings, LLC | | Oil & Gas Operator | Dec 2023 |
| 1917 | Brewer Carroll L | Edmond, OK 73003-0010 | Oil & Gas Operator | Dec 2023 |
| 1918 | Brewer Hazel R | Oologah, OK 74053-3540 | Oil & Gas Operator | Apr 2017 |
| 1919 | Brewer J E | Seminole, OK 74818-0863 | Oil & Gas Operator | Mar 2014 |
| 1920 | Brewer Natural Resources, LLC | Lexington, WV 40508 | Oil & Gas Operator | Dec 2020 |
| 1921 | Brewer Robert A And Karen A | | Oil Operator | Feb 2024 |
| 1922 | Brewer, Freddie P. | Paola, KS 66071 | Oil Operator | Nov 2003 |
| 1923 | Brewton And Martin | | Oil Operator | Dec 1997 |
| 1924 | BRG Lone Star LTD. | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2024 |
| 1925 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 1926 | BRG Petroleum LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
| 1927 | BRG Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Dec 2023 |
| 1928 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | Jan 2024 |
| 1929 | Brian C. Register | | Oil & Gas Operator | Jun 2011 |
| 1930 | Brian Energy | Kilgore, TX 75663 | Oil & Gas Operator | May 2013 |
| 1931 | Brian Energy, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2020 |
| 1932 | Briar Energy Corporation | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 1933 | Briar Hill Energy, Inc. | Harrisville, WV 26362 | Oil & Gas Operator | Dec 2021 |
| 1934 | Briar Hollow Energy Company | Portland, TX 78374 | Oil & Gas Operator | Apr 2024 |
| 1935 | Briar Oil & Gas - Oklahoma 1 LLC | | Oil & Gas Operator | Dec 2023 |
| 1936 | Briarcreek Operating LLC | Graham, TX 76450 | Oil Operator | Apr 2024 |
| 1937 | Briarwood Energy Co | Akron, OH 43334 | Oil & Gas Operator | Dec 1996 |
| 1938 | Brichacek Jerry Lee | Drumright, OK 74030-9777 | Oil & Gas Operator | Jan 2020 |
| 1939 | Brickley Enterprises, LLC | Eldorado, KS 67042 | Oil Operator | Dec 2023 |
| 1940 | Bricktown Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 1941 | Brico Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2024 |
| 1942 | Bridas Energy USA, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Aug 2008 |
| 1943 | Bridge Energy LLC | | Oil & Gas Operator | Dec 2023 |
| 1944 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 1945 | Bridge Oil Development | San Antonio, TX 78209-1181-1181 | Oil & Gas Operator | Dec 1986 |
| 1946 | Bridge Oil Production Co., Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 1993 |
| 1947 | Bridge Point Carson LLC | | Oil & Gas Operator | Dec 2023 |
| 1948 | Bridgecreek Resources (Colorado), LLC | Littleton, CO 80120 | Oil & Gas Operator | Jan 2024 |
| 1949 | Bridgeland Resources LLC | | Oil & Gas Operator | Nov 2023 |
| 1950 | Bridgemark Corporation | | Oil & Gas Operator | Nov 2023 |
| 1951 | Bridger Oil Inc. | Richmond, TX 77406 | Oil & Gas Operator | Apr 2024 |
| 1952 | Bridger Petroleum Corp | | Oil & Gas Operator | Oct 1999 |
| 1953 | Bridgers, Lindley | | Oil Operator | Nov 2012 |
| 1954 | Bridges Drilling | | Oil & Gas Operator | Jan 2024 |
| 1955 | Bridges Oil Co Etal | | Oil Operator | Dec 1996 |
| 1956 | Bridgestone/Firestone Inc | Akron, OH 44317 | Oil & Gas Operator | Dec 2022 |
| 1957 | Bridon Energy LLC | | Oil & Gas Operator | Dec 2023 |
| 1958 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 1959 | Bridwell Oil Company, A General Partnership | Wichita Falls, TX 76307 | Oil Operator | Dec 2023 |
| 1960 | Bridwell Oil Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 1961 | Bridwell Oil MGMT Of Al, LLC | | Oil & Gas Operator | Apr 2006 |
| 1962 | Bridwell, Kayla & Gary | Independence, KS 67301 | Oil & Gas Operator | Dec 2009 |
| 1963 | Brier Oil LLC | Flatgap, KY 41219 | Oil Operator | Dec 2022 |
| 1964 | Brigadier Operating, LLC | Plano, TX 75024 | Oil & Gas Operator | Aug 2017 |
| 1965 | Brigco LLC | Lakin, KS 67860 | Gas Operator | Dec 2023 |
| 1966 | Briggs & Croker Oil, LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2024 |
| 1967 | Briggs Operating Company | | Oil & Gas Operator | Nov 1998 |
| 1968 | Briggs Properties, L.L.C. | | Oil Operator | Mar 2015 |
| 1969 | Brigham Oil & Gas, L.P. | Austin, TX 78730 | Oil & Gas Operator | Oct 2015 |
| 1970 | Brigham Operating, LLC | Austin, TX 78730 | Oil & Gas Operator | Apr 2024 |
| 1971 | Brigham Resources Operating, LLC | Austin, TX 78730 | Oil & Gas Operator | Jun 2017 |
| 1972 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 1973 | Bright & Schiff | | Oil & Gas Operator | Dec 1977 |
| 1974 | Bright Hawk Operating Company | Spring, TX 77388 | Oil & Gas Operator | Apr 2024 |
| 1975 | Bright Horizon Resources LLC | | Oil & Gas Operator | Sep 2016 |
| 1976 | Bright Horizon Texas LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2016 |
| 1977 | Bright Oil Company | Cumming, GA 30028 | Oil & Gas Operator | Apr 2024 |
| 1978 | Bright R E | Tulsa, OK 74116 | Oil & Gas Operator | Nov 2012 |
| 1979 | Bright Rock Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
| 1980 | Bright Well Oil & Gas Co | Armagh, PA 15920-0229 | Gas Operator | Dec 2023 |
| 1981 | Bright, Wayne E. | Independence, KS 67301 | Oil & Gas Operator | Dec 2023 |
| 1982 | Brightman Family Trust | Graham, TX 76450 | Oil & Gas Operator | Dec 2009 |
| 1983 | Brightman, Tom | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 1984 | Brighton Energy LLC | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 1985 | Brightriver Energy Co | Katy, TX 77494 | Oil & Gas Operator | Apr 2024 |
| 1986 | Brigman Prod Inc | Hutchinson, KS 67502 | Oil & Gas Operator | Sep 2009 |
| 1987 | Brilex LLC | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2023 |
| 1988 | Briley Operating, LLC | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 1989 | Brindle/Thomas | | Oil & Gas Operator | Dec 2023 |
| 1990 | Brinker Enterprises, LLC | Glen Elder, KS 67446 | Oil Operator | Dec 2023 |
| 1991 | Brinker Henry Milton | Delmont, PA 15626-1208 | Oil & Gas Operator | Dec 2020 |
| 1992 | Brinkerhoff Drilling Co | | Oil & Gas Operator | Jul 1975 |
| 1993 | Brinkley, Amy M. | Mayville, NY 14757 | Gas Operator | Dec 2022 |
| 1994 | Brinkoeter Gas & Oil | Converse, TX 78109 | Oil & Gas Operator | Aug 2004 |
| 1995 | Brisco, W. M. | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2003 |
| 1996 | Briscoe Land Development Inc | Geary, OK 73040 | Oil Operator | May 2013 |
| 1997 | Briscoe Oil Company | Kingfisher, OK 73750-2322 | Oil & Gas Operator | Apr 2014 |
| 1998 | Briscoe Oil Operating Co., Inc. | Kingfisher, OK 73750 | Oil & Gas Operator | Mar 2015 |
| 1999 | Briscoe Petroleum, LLC | Sheridan, WY 82801 | Oil & Gas Operator | Feb 2024 |
| 2000 | Briscoe, Glenn D. | Jacksboro, TX 76458 | Oil & Gas Operator | Oct 2002 |