Oil & Gas Companies in Seward County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | E R Operating Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 2 | Eagle Creek Corporation | Andover, KS 67002 | Oil & Gas Operator | Jun 2025 |
| 3 | Edison Operating Company LLC | Wichita, KS 67226 | Oil & Gas Operator | Jun 2025 |
| 4 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
| 5 | Elm III Operating Company LLC | Edmond, OK 73013 | Oil & Gas Operator | Jun 2025 |
| 6 | Encore Operating Company | Denver, CO 80227 | Oil & Gas Operator | Dec 2019 |
| 7 | Energy Reserves | | Oil & Gas Operator | Oct 1993 |
| 8 | Energy Reserves Group, Inc. | Wichita, KS 67202 | Oil & Gas Operator | May 2002 |
| 9 | Engel Farms Corporation | Liberal, KS 67901 | Gas Operator | Mar 2003 |
| 10 | Ensign Operating | | Oil & Gas Operator | Oct 1994 |
| 11 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 12 | Extreme Energy Co | | Oil & Gas Operator | Jun 2025 |
| 13 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Aug 2025 |
Production numbers shown above are only for Seward County, KS and for the production period listed.