201 wells across 58 active operators, with 0 drilling permits filed in the last 24 months.
Refreshed monthly from CalGEM well-header records. Data current as of 2026-08-16.
Quick answer: The Eel River Basin formation in California has 201 wells on record across 58 active operators, with 0 drilling permits filed in the last 24 months (as of 2026-08-16). Its most active operators by well count are California Resources Production, Pacific Gas & Electric Company, Chevron, Harvest Petroleum and Zephyr Oil Company. Compiled from California Geologic Energy Management Division (CalGEM) well-header records, refreshed monthly.
The operators with the most well counts targeting the Eel River Basin formation in California:
| # | Operator | Wells in Eel River Basin |
|---|---|---|
| 1 | California Resources Production | 44 |
| 2 | Pacific Gas & Electric Company | 23 |
| 3 | Chevron | 16 |
| 4 | Harvest Petroleum | 13 |
| 5 | Zephyr Oil Company | 11 |
| 6 | Arco Western Energy | 8 |
| 7 | Jas E Babcock | 6 |
| 8 | Natural Gas CORP Of Calif | 4 |
| 9 | Energy Development | 3 |
| 10 | Argo Petroleum | 3 |
The California counties with the most Eel River Basin activity:
Humboldt, Del Norte
The Eel River Basin is one of California's active oil and gas plays, with 201 wells on file across 58 distinct operators of record. Operators have filed 0 drilling permits targeting the Eel River Basin in the last 24 months — a measure of how active the play is right now versus its historical baseline.
For mineral owners with interests in Humboldt, Del Norte, knowing whether your tract sits within an active Eel River Basin footprint is a foundational valuation question. Active formations with consistent permit flow command premium pricing; legacy formations with steady but declining production are valued differently.
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201 wells target the Eel River Basin in California, worked by 58 active operators, per CalGEM well-header records (as of 2026-08-16).
By well count, the most active Eel River Basin operators in California are California Resources Production, Pacific Gas & Electric Company, Chevron, Harvest Petroleum and Zephyr Oil Company. The full ranking is in the table on this page.
Operators filed 0 drilling permits targeting the Eel River Basin in the last 24 months — a live measure of current activity, per CalGEM records.
Operators filed 0 new drilling permits targeting the Eel River Basin in California over the last 24 months. New permits and spuds are the clearest signal of active Eel River Basin drilling, per CalGEM records (as of 2026-08-16).
Eel River Basin activity in California currently spans 201 wells on record and 58 active operators, led by California Resources Production, Pacific Gas & Electric Company, Chevron, Harvest Petroleum and Zephyr Oil Company, with 0 drilling permits filed in the last 24 months — refreshed monthly from California Geologic Energy Management Division (CalGEM) well-header records (as of 2026-08-16).
The most active Eel River Basin counties in California are Humboldt, Del Norte.
Value depends on your net mineral acres or royalty decimal, the operator, the remaining drilling locations, and current oil and gas prices. Buckhead Energy checks your tract against current Eel River Basin well and permit data and puts a free, no-obligation written offer in writing — this page is informational only, not a valuation.
Cite this dataset
Permanently archived and citable via a DOI on Zenodo (CERN), under a CC BY 4.0 license. DOI: 10.5281/zenodo.21442884 · View on Zenodo
License & attribution: This data is licensed CC BY 4.0. You are free to share and adapt it, including commercially, provided you credit “Buckhead Energy” and link back to this page or the DOI above.
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Formation: Eel River Basin
State: California
Total wells: 201
Active operators: 58
Permits 24mo: 0
Last refresh: 2026-08-16
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