Santa Fe Springs is one of the great Los Angeles Basin fields of the 1920s, lying beneath the city of the same name in southeastern Los Angeles County. Union Oil drilled in the area as early as 1907, but the field came into its own around 1919, and in 1921 the Union-Bell well blew in as a 2,500-barrel gusher and set off a genuine oil rush. At its height the field produced as much as 345,000 barrels a day, exceeding both Signal Hill and Huntington Beach.
Union Oil began drilling near the intersection of Norwalk Boulevard and Telegraph Road in 1907, and the early attempts failed. The breakthrough came in 1921, when the Union-Bell well blew in as a 2,500-barrel gusher and triggered one of the most frenzied leasing scrambles in California history. Promoters bused prospective investors into the field, fed them lunch under circus tents, and told them stories about fortunes made in oil — an episode that produced as many worthless stock certificates as it did producing wells.
At the peak the field produced as much as 345,000 barrels a day, more than Signal Hill or Huntington Beach, and by 1938 it had yielded a reported total of more than 440 million barrels. Production slowed as the 1920s wore on, with output falling in each successive year after the initial flush — a pattern driven by the closely spaced drilling of the boom and the rapid loss of reservoir pressure that followed. Deeper sands were being drilled by 1928 as operators chased the section below the original pay.
Santa Fe Springs also saw one of the more destructive tank-farm fires in Southern California oil history during the late 1920s, a hazard inseparable from cities built directly on top of gushing wells. The field never returned to boom-era rates, but it never stopped either: wells were still being reworked in the 2010s, and small-scale production has persisted under the city for a century. Interests created during the 1920s frenzy have passed through many hands, so title work here is often involved.
Santa Fe Springs produces from stacked Miocene and Pliocene sands over a faulted anticline in the central Los Angeles Basin, part of the same structural framework that hosts the region’s other great fields. Local operators named the productive zones after the wells and companies that found them — the Meyer, Bell, and O’Connell zones among others — a convention common in 1920s California. Deeper sands were reached late in the 1920s. The basin’s exceptional richness comes from thick Miocene source rock buried rapidly enough to generate oil in enormous volume.
Like most Los Angeles Basin fields, Santa Fe Springs was drilled far faster than its reservoir pressure could support, and secondary recovery became the mechanism for extending its life. Waterflooding restores pressure and sweeps oil toward producing wells, and injection operates under CalGEM permits. The constraints on modern work here are largely at the surface: the field lies beneath an incorporated city, so setback requirements, land-use approvals, and idle-well obligations shape what an operator can realistically do far more than the reservoir does.
A Santa Fe Springs royalty today is a small interest in a historic field, valuable chiefly for its durability rather than its size. The complication is title: interests created in the 1921 boom have often been divided among many heirs across a century, and suspended or unclaimed royalties are not unusual. We handle that research at our own expense. If you would rather have a clean, certain payment than an inherited fraction of a century-old boom, we buy minerals and royalties in Los Angeles County and provide free written offers.
County-level well data, production charts, and selling guides for the counties this field spans:
At its peak the field produced as much as 345,000 barrels a day, which exceeded both Signal Hill and Huntington Beach at the time. By 1938 it had yielded a reported total of more than 440 million barrels. Its decline was equally steep.
Production has continued at a small scale beneath the city, and wells were being reworked well into the 2010s. It is a stripper operation rather than a boom field, and urban setback and land-use rules constrain what new work is possible.
Send us whatever you have — deeds, an old division order, or even a lease copy. Interests from the 1920s boom often need title research to trace through a century of heirs, and we do that work at our own expense before making a written offer.