Costilla County, Colorado Wells Summary
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Total wells
Most recent drilling
First on record
Activity status
Costilla County contains 6 wells on file, with top operators including EASTDALE OIL COMPANY and A B CHASE.
The only oil & gas field intersecting Costilla is WILDCAT.
Most recent well on record: REED, operated by EASTDALE OIL COMPANY — last updated March 2026.
Active drilling rigs · Baker Hughes snapshot, week of 2026-05-29
By basin
- 8 DJ-Niobrara
- 3 Other
Drilling for
- 8 Oil
- 3 Gas
Costilla County well density
Every dot is one well — small blue dots are historic wells;
larger orange dots are wells with activity in the last 60 days.
6 wells plotted ·
0 active in last 60 days
Basemap © OpenStreetMap contributors · well data © Oil and Gas Information · tiles served by DynamoMap
Top Operators in Costilla County by total wells
Operators: Eastdale Oil Company, A B Chase, Alamosa Drilling Inc, Energy Operatng Company Inc, Sunny Valley Oil Company.
Top Oil & Gas Fields intersecting Costilla County
Fields: Wildcat.
Top Counties in Colorado most active by total wells
Compare Costilla against the other busiest counties in Colorado:
- Weld · 45,233 wells
- Garfield · 17,243 wells
- Rio Blanco · 7,358 wells
- Yuma · 6,234 wells
- Washington · 5,803 wells
- Adams · 4,941 wells
- La Plata · 4,608 wells
- Las Animas · 4,015 wells
- Logan · 3,923 wells
- Morgan · 3,030 wells
- Mesa · 2,818 wells
- Moffat · 2,286 wells
Recent wells
| Well Name | Last activity | Updates | Operator | API |
|---|---|---|---|---|
| REED | 2026-03-18 | EASTDALE OIL COMPANY | 05-023-05002 | |
| REED | 2026-03-18 | EASTDALE OIL COMPANY | 05-023-05303 | |
| D D VAUGHN | 2026-03-18 | ALAMOSA DRILLING INC | 05-023-40000 | |
| BLANCA TRINCHERA | 2026-03-18 | SUNNY VALLEY OIL COMPANY | 05-023-05001 | |
| CHASE-HILL | 2026-03-18 | A B CHASE | 05-023-05003 | |
| WILLIAMSON | 1999-06-03 | ENERGY OPERATNG COMPANY INC | 05-023-05004 |
Surface Ownership Records:
