Arapahoe County has 1,662 wells in the ECMC well file — 263 of them producing today (257 oil, 6 gas), 17 permitted, 0 spudded but not yet completed, and 950 plugged and abandoned. The most active operator by well count is Crestone Peak Resources Operating LLC. Figures come from the 2026-09-29 ECMC bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Crestone Peak Resources Operating LLC | 271 |
| Axis Exploration LLC | 147 |
| Tiger Oil Company | 66 |
| Kp Kauffman Company INC | 53 |
| Colorado Interstate Gas Company LLC | 47 |
| Parker & Parsley Dev L P | 45 |
| Renegade Oil & Gas Company LLC | 44 |
| Huckabay Ltd* E Doyle | 42 |
| Amoco Production Company | 40 |
| Bwab INC | 29 |
| Field | Wells |
|---|---|
| Wildcat | 645 |
| Dj Horizontal Niobrara | 264 |
| Peoria | 115 |
| Latigo | 53 |
| Dragoon | 48 |
| Bombing Range | 45 |
| Lowry | 44 |
| Pronghorn | 39 |
42 wells went to a rig in Arapahoe County in the last twelve months per ECMC; 7 in the last 45 days. The statewide list is on the drilling activity page.