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Biancalana 1
Plugged Dry hole well
| API number | 04-013-00013 |
|---|---|
| Operator | Sumpf-Williams |
| County | Contra Costa, California |
| Field | River Break Gas |
| Spudded | 1966-08-08 |
| Surface location | 37.989304, -121.706429 · wells within 1 mile |
| State record | California Geologic Energy Management Division (CalGEM) ↗ |
| Data as of | 2026-10-19 |
From California Geologic Energy Management Division (CalGEM) public records. Verify with the state before relying on this information.