Historical presentation
Offshore Oil and Gas Located in California Waters
Last Updated: July 7, 2026
The Commission manages 10 active offshore oil and gas production-related leases in state waters, excluding Long Beach Unit, West Wilmington, and other granted public trust lands. Of those, nine are producing leases and one, PRC 3413, supports production through injection. These are what remain of the more than 60 originally issued. These leases were issued prior to the catastrophic 1969 oil spill from Platform A in federal waters off Santa Barbara County, and some predate the formation of the Commission. Between 2010 and 2014, the bulk of the approximately $300 million generated annually for the state’s General Fund from oil and gas agreements was from these offshore leases. In 1921, the Legislature created the first tidelands oil and gas leasing program. Between 1921 and 1929, approximately 100 permits and leases were issued, and over 850 wells were drilled in Santa Barbara and Ventura Counties. In 1929, the Legislature prohibited any new leases or permits. In 1933, however, the prohibition was partially lifted in response to an alleged theft of tidelands oil in Huntington Beach. It wasn’t until 1938, and again in 1955, that the Legislature would allow new offshore oil and gas leasing. Except for limited circumstances, the Legislature has consistently placed limits on the areas that the Commission may offer for lease, and in 1994, placed the entirety of California’s coast off-limits to new oil and gas leases.
Long Beach Unit and West Wilmington Operations (granted land)
Last Reviewed: June 11, 2026
Fiscal Year 2024-2025
| Location | Production (millions of barrels of oil) | Net Profit ($ in millions, State Share) | Well Count | Conservative field life |
|---|---|---|---|---|
| East Wilmington / Long Beach Unit | 5.76 (Total for Unit) | $ 64.43 | 1504 | 2035 |
| West Wilmington | 1.37 (State Share) | $ 31.56 | 889 / 494 (W. Wilmington / City Trust Share, Tidelands) | 2035 |
Quitclaimed Offshore Oil and Gas Leases Status Summary
| Dates Covered | Quitclaimed Leases | Quitclaimed Lease Count |
|---|---|---|
| 1965-69 | 2198, 2205 | 2 |
| 1970-74 | 424, 3119, 3946 | 3 |
| 1975-79 | 2207 | 1 |
| 1980-84 | 428, 4031 | 2 |
| 1985-89 | 3177 | 1 |
| 1990-94 | 308, 309, 2955, 3184, 3403, 3489, 3490, 3498, 3945, 4001, 4002 | 11 |
| 1995-99 | 2206, 2725, 2726, 3499 | 4 |
| 2000-04 | 129, 208, 287, 2199, 2793, 2894, 2933 | 7 |
| 2005-09 | 2920, 2991, 3004, 3503 | 4 |
| April 2009 to February 2017 | 429 | 1 |
| March 2017 to October 2017 | 421, 3120, 3242 | 3 |
| November 2017 | 3150 | 1 |
| December 2017 | 145, 410, 1466 | 3 |
| 2018 to November 2025 | 3095* | 1 |
| Total Leases Quitclaimed to Date | 44 | |
* Note: Lease 3095, the former Platform Esther oil and gas lease, was quitclaimed in 2025 and is no longer producing. Lease 3394, the associated right-of-way between Platform Esther and shore, was also quitclaimed. The former Platform Esther lease areas are now covered by General Lease – Industrial Use 9874 for maintenance, monitoring, plugging and abandonment, and decommissioning planning. Lease 9874 does not authorize oil and gas production.
Terminated Offshore Oil and Gas Lease Summary
| Termination Date | Lease | Lessee | Acres | Staff Report | Location |
|---|---|---|---|---|---|
| 2019-06-28 | 4000 | Carone | 204 | 98 | Santa Barbara Channel, Offshore Carpinteria |
| 2019-06-28 | 7911 | Carone | 1,541 | 98 | Carpinteria Offshore Oilfield, Southern portion of State Oil & Gas Lease 3150 |
| 2019-06-28 | 3133 | ExxonMobil | 5,535 | 98 | Carpinteria Offshore, Parcel 19, Santa Barbara Channel |