Sell mineral rights in the San Joaquin Basin

Where the San Joaquin Basin lies and which counties matter

The basin fills the southern half of California's Central Valley, with Bakersfield at its center. Commercial production here dates to 1887, and thermal recovery arrived in the 1960s (CEC, 2021). Kern County carries almost all of it: the Kern River and Kern Front fields sit just east of central Bakersfield, while South Belridge, Cymric, McKittrick and Midway-Sunset run north to south along the county's western side, with Elk Hills next to them (CEC, 2021).

The biggest fields are large by any measure. In 2020, Midway-Sunset produced about 16.5 million barrels, Kern River 15.9 million and South Belridge 15.8 million, with Cymric and Lost Hills above 8 million each (CEC analysis of CalGEM data, 2021). Midway-Sunset, near Taft, is California's largest and most productive oil field (California State Senate, 2025).

Outside Kern, activity is thin. Fresno County had 1,254 steam wells in 2020, nearly all in the Coalinga field (CEC, 2021). Mineral rights in those two counties attract a smaller pool of buyers, usually ones already active in Kern.

What San Joaquin Basin wells produce

San Joaquin wells produce heavy crude oil, most of it with steam. In 2020, more than 100 million barrels of California's roughly 130 million barrels of crude came from fields with steam wells, and Kern County alone had just under 22,300 steam wells (CEC, 2021). Elk Hills is the exception: it has no active steam wells and, in addition to oil, supplied 53.5 percent of in-state natural gas production (CEC, 2021).

Production is declining but long-lived. The basin's onshore proved crude reserves stood at 1,075 million barrels at the end of 2021, after 99 million barrels of production that year (EIA). The USGS estimated in 2003 that reserve growth in existing fields could add about 4,000 million barrels, much of it from improved recovery in the Monterey Formation's diatomite reservoirs (USGS, 2007).

For a mineral rights owner this means royalty from wells that may be decades old, often with small monthly checks spread across many wells, and the steam and power costs that operators sometimes deduct from them.

Why mineral rights buyers are active in the San Joaquin Basin

Buyers are active here because the fields are enormous and well understood. Nine major San Joaquin fields could yield about 6.5 billion barrels more with improved recovery methods (USGS, 2012), so a buyer of San Joaquin Basin mineral rights is pricing slow, steady production rather than a drilling rush.

Permitting is the variable. In September 2025 the Governor signed SB 237, which certifies Kern County's environmental impact report and allows the county to approve up to 2,000 new well drilling permits a year for ten years, effective January 1, 2026 (California State Senate, 2025; CEC, 2026). Buyers read that as more infill wells in Kern, and interest in Kern mineral rights has picked up with it.

The third reason is simplicity. Most mineral rights sit in one of a handful of fields with one operator, so a buyer can check the field's history and decline in an afternoon.

What San Joaquin Basin mineral rights are worth

Producing mineral rights are priced as a multiple of recent monthly royalty income, adjusted for decline, heavy-oil price discounts and whether the operator is adding wells under the new permits. A tract inside Midway-Sunset or South Belridge with steady checks draws stronger offers than one with a few stripper wells.

Non-producing San Joaquin Basin mineral rights are priced per net mineral acre, and the number depends on whether the tract lies inside a producing field boundary, how close it is to active steam projects, and whether it falls within Kern County's permitting area. Acreage far from existing fields draws little interest.

Buyers check the California Geologic Energy Management Division (CalGEM), the Department of Conservation division that permits and tracks every well, using its Well Finder map and WellSTAR records. They also read county recorder documents, your lease and your division orders. Clean title speeds up every offer on your mineral rights.

How to sell San Joaquin Basin mineral rights

Tell us your county, your interest type and whether it is producing. Your request goes to up to three independent buyers who work in California, and each makes its own offer on your mineral rights.

Weigh the offers, then accept, counter or keep your mineral rights. Nothing is charged to owners; buyers pay for the introduction. When you decide to sell mineral rights, competing offers tell you more than any online estimate, and a tax professional can help you weigh the lump sum against years of royalty.

How to get offers for San Joaquin Basin mineral rights

Tell us the state and county and what you own. We send your request to up to 3 mineral rights buyers who purchase in that part of the San Joaquin Basin. They review the public records and contact you with offers, and you choose whether to sell, sell part, or keep.

San Joaquin Basin mineral rights questions

Last reviewed October 13, 2026. This page is general information, not legal or tax advice. Facts come from the official sources listed above; confirm anything that matters to your sale with a qualified professional.