Oil & Gas Companies in Harper County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | C & C Oil & Gas | Ranger, TX 76470 | Oil & Gas Operator | Jul 2026 |
| 2 | C & K Operating LLC | Kingman, KS 67068 | Oil & Gas Operator | Mar 2026 |
| 3 | Casey Musgrove Oil Company Inc | Ponca City, OK 74602 | Oil & Gas Operator | May 2026 |
| 4 | Castle Resources, Inc. | Russell, KS 67665 | Oil & Gas Operator | Mar 2026 |
| 5 | Chapman Energy O | | Oil & Gas Operator | Jun 1993 |
| 6 | Charles N. Griffin | | Oil & Gas Operator | Mar 2026 |
| 7 | Chesapeake Energy Ma | | Gas Operator | Jun 2016 |
| 8 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Jul 2026 |
| 9 | Chieftain Oil Co Inc | Kiowa, KS 67070 | Oil & Gas Operator | May 2026 |
| 10 | Citation Oil & Gas Corp | Houston, TX 77269 | Oil & Gas Operator | Jul 2026 |
| 11 | Clark Exploration Company | Highlands Ranch, CO 80126-7645 | Oil & Gas Operator | Jul 2024 |
| 12 | Clothier, David W. | Eastborough, KS 67206 | Oil & Gas Operator | Dec 2019 |
| 13 | Colt Resources Corporation | Billings, MT 59103 | Oil & Gas Operator | Feb 2013 |
| 14 | Coral Production Corporation | Denver, CO 80201 | Oil & Gas Operator | Mar 2026 |
| 15 | Curt'S Oil Operation LLC | Hoisington, KS 67544 | Oil & Gas Operator | Mar 2026 |
Production numbers shown above are only for Harper County, KS and for the production period listed.