| 1901 | B & D Operating Company | | Oil & Gas Operator | Apr 1990 |
| 1902 | B & E Oil Corporation | | Oil Operator | Sep 1985 |
| 1903 | B & E Resources LLC | Beverly, OH 45715 | Oil & Gas Operator | Dec 2024 |
| 1904 | B & F Enterprises | Ada, OK 74820 | Oil & Gas Operator | Feb 2002 |
| 1905 | B & F Oil Enterprises | | Oil Operator | Dec 1998 |
| 1906 | B & F Operating Company, Inc. | | Oil & Gas Operator | Mar 1995 |
| 1907 | B & G Energy Corporation | Dallas, TX 75214 | Oil & Gas Operator | Feb 2026 |
| 1908 | B & G Oil | Graham, TX 76450 | Oil & Gas Operator | Mar 2015 |
| 1909 | B & G Oil & Gas Co | Bartlesville, OK 74006 | Oil & Gas Operator | Dec 2000 |
| 1910 | B & G Oil Compan | | Oil Operator | Aug 1994 |
| 1911 | B & G Oil Company | | Oil & Gas Operator | Oct 2007 |
| 1912 | B & H Drilling, A General Partnership | Moline, KS 67353 | Oil Operator | Nov 2009 |
| 1913 | B & H Exploration Company | Talala, OK 74080 | Oil & Gas Operator | Dec 2000 |
| 1914 | B & H Gas, Inc. | Weatherford, TX 76086 | Gas Operator | Aug 2000 |
| 1915 | B & H Oil Company | Oklahoma City, OK 73108 | Oil & Gas Operator | Jan 2025 |
| 1916 | B & H Oilfield Services | Midland, TX 79702 | Oil & Gas Operator | Jul 1996 |
| 1917 | B & J Developers | | Oil Operator | Oct 1995 |
| 1918 | B & J Developers Inc | Bartlesville, OK 74006-3403 | Oil & Gas Operator | Feb 2020 |
| 1919 | B & J Drilling Co | Danville, OH 43014 | Oil & Gas Operator | Dec 2024 |
| 1920 | B & K Drilling Co | Warren, OH 44481 | Oil & Gas Operator | Dec 1994 |
| 1921 | B & K Oil & Gas Co Inc | Lewisville, OH 43754 | Oil & Gas Operator | Dec 2024 |
| 1922 | B & K Operating Co., Inc. | | Oil Operator | Mar 2000 |
| 1923 | B & K Partnership | Burleson, TX 76028 | Oil Operator | Aug 2025 |
| 1924 | B & L | | Oil Operator | Apr 2016 |
| 1925 | B & L Minerals, Inc. | Houston, TX 77036 | Oil & Gas Operator | Aug 2003 |
| 1926 | B & L Oil | Sardis, OH 43946 | Oil & Gas Operator | Sep 2025 |
| 1927 | B & L Oil Compan | | Oil Operator | Jun 1988 |
| 1928 | B & L Pump & Supply Company | | Oil & Gas Operator | Nov 2025 |
| 1929 | B & M Energy | Midland, TX 79705 | Oil & Gas Operator | Jul 2003 |
| 1930 | B & M Oil & Gas LLC | Bartlesville, OK 74006-5702 | Oil Operator | Nov 2025 |
| 1931 | B & M Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Dec 2011 |
| 1932 | B & M Oil Co.. A General Partner | Eldorado, KS 67042 | Oil Operator | Sep 2025 |
| 1933 | B & M Oilfield Service, Inc. | | Oil Operator | Mar 1999 |
| 1934 | B & M Operating Co., Inc. | Houston, TX 77006 | Oil & Gas Operator | Feb 2026 |
| 1935 | B & M Resources, Inc. | | Oil Operator | Apr 1997 |
| 1936 | B & N | Newcastle, TX 76372 | Oil & Gas Operator | Oct 1995 |
| 1937 | B & N Coal Inc | Dexter City, OH 45727 | Oil & Gas Operator | Dec 2024 |
| 1938 | B & N Gas Company, LLC | Marion, KS 66861 | Gas Operator | Dec 2023 |
| 1939 | B & N Oil, LLC | | Oil Operator | Sep 2025 |
| 1940 | B & N Trucking | Quitman, TX 75783 | Oil & Gas Operator | May 1996 |
| 1941 | B & O Drilling Inc | Ada, OK 74820-8065 | Oil & Gas Operator | Sep 2014 |
| 1942 | B & P Oil & Gas | Oilton, OK 74052-0296 | Oil & Gas Operator | Dec 2021 |
| 1943 | B & R Contracting | Milam, TX 75959 | Gas Operator | Apr 2003 |
| 1944 | B & R Oil | Holdenville, OK 74848-4634 | Oil Operator | Mar 2015 |
| 1945 | B & R Oil, Inc. | Odessa, TX 79768 | Oil & Gas Operator | Dec 2024 |
| 1946 | B & R Operating Service | | Oil Operator | Jan 1990 |
| 1947 | B & R Operating, LLC | San Angelo, TX 76903 | Oil & Gas Operator | Jan 2007 |
| 1948 | B & R Production LLC | Paden, OK 74860 | Oil & Gas Operator | Dec 2025 |
| 1949 | B & R Resources, LLC | Solon, OH 44139-2360 | Oil & Gas Operator | Dec 2014 |
| 1950 | B & S Oil | | Oil Operator | Jun 2008 |
| 1951 | B & S Oil Company | Kermit, TX 79745 | Oil & Gas Operator | Dec 2025 |
| 1952 | B & S Operating Co. | | Oil Operator | Jun 1996 |
| 1953 | B & S Production | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2009 |
| 1954 | B & S Resources LLC | Choctaw, OK 73020 | Oil Operator | Nov 2025 |
| 1955 | B & S Salvage | Post, TX 79356 | Oil & Gas Operator | Feb 2026 |
| 1956 | B & T Operating Co. | Dawson, TX 76639 | Oil & Gas Operator | Feb 2026 |
| 1957 | B & V Oil Company | | Oil Operator | Jul 2002 |
| 1958 | B & V Rocking S, LLC | Holliday, TX 76366 | Oil Operator | Feb 2026 |
| 1959 | B & W Exploration, Inc. | | Oil & Gas Operator | Dec 2000 |
| 1960 | B & W Oil Co | Artesia, NM 88210 | Oil & Gas Operator | Jan 2005 |
| 1961 | B & W Oil Inc. | Wellington, KS 67152 | Oil Operator | Apr 2000 |
| 1962 | B & W Operating, L.L.C. | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2025 |
| 1963 | B & W Production | Bristow, OK 74010 | Oil Operator | May 1994 |
| 1964 | B & W Southern Petroleum | The Woodlands, TX 77381 | Oil & Gas Operator | Aug 2009 |
| 1965 | B A C O, LTD. | Hardin, TX 77561 | Oil & Gas Operator | Apr 2003 |
| 1966 | B And C Oil Inc | | Oil & Gas Operator | Mar 2012 |
| 1967 | B And G Production, Inc. | Woodward, OK 73801 | Oil & Gas Operator | Feb 2026 |
| 1968 | B And M Production | Burkburnett, TX 76354 | Oil Operator | Feb 2026 |
| 1969 | B B & B Oil Co | Tulsa, OK 74114 | Oil & Gas Operator | Mar 2014 |
| 1970 | B B Energy Corp | Pequannock, NJ 07440 | Oil & Gas Operator | Dec 1994 |
| 1971 | B B R Oil Corporation | Norman, OK 73069 | Oil & Gas Operator | Nov 2025 |
| 1972 | B Bernard Lankford | Weatherford, TX 76086 | Oil & Gas Operator | Sep 1994 |
| 1973 | B C & D Oil & Gas Corp. | Hobbs, NM 88241 | Oil & Gas Operator | Feb 2026 |
| 1974 | B D Deans LLC | | Oil & Gas Operator | May 2009 |
| 1975 | B D K Oil Company | | Oil & Gas Operator | Aug 2000 |
| 1976 | B D Production Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 1977 | B E C Oil Compan | | Oil Operator | May 1986 |
| 1978 | B E Enterprises, Inc | | Oil Operator | Dec 2024 |
| 1979 | B H & C Operating Company, Inc. | Luling, TX 78648 | Oil & Gas Operator | Feb 2026 |
| 1980 | B H & T Oil Company Inc | Purcell, OK 73080-3010 | Oil & Gas Operator | Dec 2000 |
| 1981 | B H R Petroleum Inc | | Oil & Gas Operator | Apr 2006 |
| 1982 | B J Inc | Crossville, TN 38555 | Oil & Gas Operator | Dec 1984 |
| 1983 | B J Oil Company | Corsicana, TX 75109 | Oil & Gas Operator | Feb 2026 |
| 1984 | B J Resources, L.L.C. | Athens, TX 75751 | Oil & Gas Operator | Feb 2026 |
| 1985 | B K Energy, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Oct 2006 |
| 1986 | B K L Incorporated | Morton, TX 79346 | Oil & Gas Operator | Jun 2002 |
| 1987 | B L Oil And Gas | Loco Hills, NM 88255 | Oil & Gas Operator | Aug 2010 |
| 1988 | B L S W Pleasure Corp., Inc | | Oil Operator | Mar 1990 |
| 1989 | B M & S Oil | | Oil Operator | Apr 1986 |
| 1990 | B M Energy, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Jan 2022 |
| 1991 | B M Oil, Inc. | | Oil & Gas Operator | May 2019 |
| 1992 | B P Energy | | Oil & Gas Operator | Apr 2015 |
| 1993 | B P Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Nov 2007 |
| 1994 | B R Polk Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2025 |
| 1995 | B R Smith Disposal Co | | Oil & Gas Operator | Jun 2021 |
| 1996 | B S &B Oil & Gas | | Oil Operator | Dec 1992 |
| 1997 | B&B Oil Rental Tools, Inc. | | Oil Operator | Sep 1994 |
| 1998 | B&E Exploration, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Sep 2009 |
| 1999 | B&L Exploration, L.L.C. | Metairie, LA 70001 | Oil & Gas Operator | Feb 2026 |
| 2000 | B&L Operating Co. | Price, TX 75687 | Oil & Gas Operator | Feb 2026 |