# Coastal Basins Formation in California: Operators, Permits & Activity 2026
> **Breadcrumb:** Home › Operators › California Formations & Plays › Coastal Basins (California)

> Coastal Basins oil and gas activity in California: 5514 wells across 472 operators, 340 recent permits. Top operators, top counties, recent permits and DUC inventory targeting the Coastal Basins formation. Refreshed monthly.

**URL:** https://www.buckheadenergy.com/formation-california/coastal-basins
**Source:** Buckhead Energy (https://www.buckheadenergy.com/)
**Generated:** 2026-08-16 (heuristic; server-side extraction)

## Answer
Quick answer: The Coastal Basins formation in California has 5,514 wells on record across 472 active operators, with 340 drilling permits filed in the last 24 months (as of 2026-08-16). Its most active operators by well count are Chevron, Aera Energy, Sentinel Peak Resources Ca, Shell Oil Company and Phillips Petroleum Company. Compiled from California Geologic Energy Management Division (CalGEM) well-header records, refreshed monthly.

## Dataset
**Name:** Coastal Basins Formation – California Oil & Gas Activity

Coastal Basins formation operator and drilling activity in California: 5,514 wells, 472 active operators, 340 permits in the last 24 months. Top operators, top counties, recent permits, and DUC inventory.

**Variables measured:**
- Total Wells: 5514
- Active Operators: 472
- Recent Permits (24 Months): 340

## Page Outline
- Coastal Basins Formation in California
  - Top Operators in the Coastal Basins (California)
  - Primary California Counties for the Coastal Basins
  - Recent Coastal Basins Drilling Permits in California
  - About the Coastal Basins Formation in California
  - Frequently Asked Questions
  - Own Coastal Basins Mineral Rights in California?
  - Related Operator Intelligence

## Related Pages
- [California Oil & Gas Industry Snapshot Dashboard](https://www.buckheadenergy.com/california-oil-gas-industry-snapshot)
- [Top California Operators Leaderboard](https://www.buckheadenergy.com/top-operators-california)
- [California Drilling Activity Report (permits, DUCs, spuds)](https://www.buckheadenergy.com/california-drilling-activity-report)
- [US Mineral Market Activity Index (all 11 states ranked 0–100)](https://www.buckheadenergy.com/us-mineral-market-activity-index)
- [US Mineral & Drilling Activity Index (national rollup)](https://www.buckheadenergy.com/us-drilling-activity-index)
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- [Oklahoma Industry Snapshot](https://www.buckheadenergy.com/oklahoma-oil-gas-industry-snapshot)
- [Largest US Operators — National Leaderboard](https://www.buckheadenergy.com/top-operators-us)
- [Browse the Full Operator Directory](https://www.buckheadenergy.com/operators)
- [Live Oil & Gas Prices (WTI + Henry Hub)](https://www.buckheadenergy.com/oil-gas-prices)
- [Sell Your California Mineral Rights](https://www.buckheadenergy.com/sell)
- [How to Sell Mineral Rights (Step-by-Step)](https://www.buckheadenergy.com/2026/how-to-sell-mineral-rights)
- [Oil & Gas Market Data Hub (all dated datasets)](https://www.buckheadenergy.com/oil-gas-market-data)

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