Oil & Gas Companies in Sumner County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | B & W Oil Inc. | Wellington, KS 67152 | Oil Operator | Apr 2000 |
| 2 | B5 Operating, LLC | Wellington, KS 67152 | Oil & Gas Operator | Sep 2025 |
| 3 | Bach Oil Production | | Oil Operator | Sep 2025 |
| 4 | Banner Oil & Gas LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | Nov 2025 |
| 5 | Barts Oilfield Servi | | Oil Operator | Sep 2025 |
| 6 | Bass Brothers En | | Oil & Gas Operator | Mar 1983 |
| 7 | Bates Oil | | Oil Operator | Feb 2020 |
| 8 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 9 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Feb 2026 |
| 10 | Bear Petroleum | | Oil & Gas Operator | Dec 1996 |
| 11 | Bear Petroleum LLC | Haysville, KS 67060 | Oil & Gas Operator | Sep 2025 |
| 12 | Beren Corporatio | | Oil & Gas Operator | Dec 1995 |
| 13 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 14 | Berexco Incorpor | | Oil & Gas Operator | Dec 1996 |
| 15 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 16 | Black Frank J | | Oil & Gas Operator | Jan 1994 |
| 17 | Bramble Oil Company | Wichita, KS 67206 | Oil & Gas Operator | Mar 2007 |
| 18 | Brandt Prod Comp | | Oil & Gas Operator | Sep 1994 |
| 19 | Brandt Production Company, Inc. | Wichita, KS 67230 | Oil Operator | Jan 2003 |
| 20 | Bruce Oil Compan | | Oil & Gas Operator | Dec 1996 |
| 21 | Bruce Oil Company, LLC | McPherson, KS 67460 | Oil Operator | Sep 2025 |
| 22 | Buccaneer Petrol | | Oil Operator | Jan 1988 |
| 23 | Buffalo Oil & Gas LLC | Oxford, KS 67119 | Oil & Gas Operator | Sep 2025 |
| 24 | Bullseye Petrole | | Oil Operator | Oct 1992 |
| 25 | Burch Exploration, Inc. | Parker, CO 80134 | Gas Operator | Apr 1996 |
Production numbers shown above are only for Sumner County, KS and for the production period listed.