Slope County has 365 wells in the NDIC well file — 16 of them producing today (16 oil, 0 gas), 0 permitted, 0 spudded but not yet completed, and 128 plugged and abandoned. The most active operator by well count is Union Pacific Resources Co.. Figures come from the 2026-09-29 NDIC bulk file; production runs through 2026-07.
| Operator | Wells |
|---|---|
| Union Pacific Resources Co. | 91 |
| Chesapeake Operating, INC. | 83 |
| Continental Resources, INC. | 37 |
| International Nuclear Corp. | 36 |
| Burlington Resources Oil & Gas Company | 11 |
| Jerry Chambers Exploration Co. | 6 |
| States Oil Co. | 6 |
| H. L. Hunt | 5 |
| Shell Oil Co. | 5 |
| Patrick Petroleum Co. | 5 |
| Field | Wells |
|---|---|
| Cedar Hills | 229 |
| Wildcat | 94 |
| Rocky Ridge | 19 |
| Eleven Bar | 8 |
| Marmarth | 5 |
| Amidon | 4 |
| Cash | 2 |
| Cannonball | 2 |