Oil & Gas Companies in Kansas
| Company Name | Company Location | Company Type | Most Recent Production |
| 401 | Buddie Sallee | Humboldt, KS 66748 | Oil Operator | Dec 2002 |
| 402 | Buffalo Oil & Gas LLC | Oxford, KS 67119 | Oil & Gas Operator | Sep 2025 |
| 403 | Buffalo Operating Corporation | Westminister, CO 80234 | Oil & Gas Operator | Dec 2001 |
| 404 | Buffalo Resources LLC | Woodward, OK 73801 | Oil & Gas Operator | Aug 2025 |
| 405 | Bullseye Oilfield Service | Cunningham, KS 67035 | Oil Operator | Apr 2023 |
| 406 | Bullseye Petrole | | Oil Operator | Oct 1992 |
| 407 | Bullseye Petroleum, Inc. | Wichita, KS 67230 | Oil Operator | Aug 2025 |
| 408 | Burch Exploratio | | Oil Operator | Mar 1991 |
| 409 | Burch Exploration, Inc. | Parker, CO 80134 | Gas Operator | Apr 1996 |
| 410 | Burdett, Alfred | Sedan, KS 67361 | Oil Operator | Aug 2008 |
| 411 | Buried Hills Prod. Co., Inc. | Midvale, UT 84047 | Oil Operator | Dec 2006 |
| 412 | Burk Lease | Cherryvale, KS 67335 | Oil & Gas Operator | Mar 1994 |
| 413 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 414 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 415 | Burnett Corporat | | Oil & Gas Operator | Oct 1993 |
| 416 | Burns WM J | | Oil Operator | Jun 1994 |
| 417 | Burris Energy LLC | Burlington, KS 66839 | Oil & Gas Operator | Sep 2016 |
| 418 | Burris Ronald/Si | | Oil Operator | Jun 1992 |
| 419 | Burris, J. R. | Manhattan, KS 66502 | Oil Operator | Dec 2019 |
| 420 | Burton Cecil Et | | Oil & Gas Operator | Sep 1983 |
| 421 | Burton Oil Produ | | Oil Operator | Jan 1985 |
| 422 | Butler Petroleum LLC | Van Alstyne, TX 75495 | Oil Operator | May 2020 |
| 423 | Butler, Harold F. | Independence, KS 67301 | Oil Operator | Sep 2002 |
| 424 | Butte Oil And Gas Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | Nov 2025 |
| 425 | Buttonwood Petro | | Oil & Gas Operator | Aug 1994 |
| 426 | BWC Energy LLC | Edgerton, KS 66021 | Oil Operator | Sep 2025 |
| 427 | Byers Clarice An | | Oil Operator | Nov 1988 |
Production numbers shown above are only for Kansas and for the production period listed.