931 wells across 35 recorded operators, with 59 drilling permits filed in the 24-month window at summary refresh.
Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-10-02.
Quick answer: The Southern California Borderlands Province formation in California has 931 wells on record across 35 recorded operators, with 59 drilling permits filed in the 24-month window at source refresh. Its operators with the most wells on record are Tidelands Oil Production Company, California Resources Production, Beta Operating Company, Thums Long Beach Company and Dcor. Source: Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-10-02.
The operators with the most well counts targeting the Southern California Borderlands Province formation in California:
| # | Operator | Wells in Southern California Borderlands Province |
|---|---|---|
| 1 | Tidelands Oil Production Company | 285 |
| 2 | California Resources Production | 230 |
| 3 | Beta Operating Company | 138 |
| 4 | Thums Long Beach Company | 133 |
| 5 | Dcor | 37 |
| 6 | Chevron | 16 |
| 7 | City Of Newport Beach | 16 |
| 8 | Union Pacific Resources Company | 10 |
| 9 | Exxon Mobil | 9 |
| 10 | Mobil Oil | 7 |
The California counties with the most Southern California Borderlands Province activity:
Los Angeles, Orange, Santa Catalina Area, Los Angeles Offshore, Orange Offshore
The Southern California Borderlands Province is not among the California formations tracked separately in the yearly permit mix, so only statewide permit counts are shown.
| Year | State permits | This formation | Share | Median lateral |
|---|---|---|---|---|
| 2026 | 2,510 | — | — | — |
| 2025 | 5,530 | — | — | — |
| 2024 | 5,346 | — | — | — |
| 2023 | 940 | — | — | — |
| 2022 | 757 | — | — | — |
| 2021 | 130 | — | — | — |
| 2020 | 1,825 | — | — | — |
| 2019 | 2,587 | — | — | — |
Share of each year’s California drilling permits by target formation, for the formations with the most permits.
| Year | Monterey-Temblor | San Joaquin Basin | Monterey | Coastal Basins | Sacramento Basin | Los Angeles Basin |
|---|---|---|---|---|---|---|
| 2026 | 31% | 39.9% | 11.3% | 8.5% | 4.8% | 2.2% |
| 2025 | 49% | 33.7% | 8.8% | 2.4% | 2.9% | 1.3% |
| 2024 | 50.9% | 36.8% | 5.2% | 0.8% | 2.4% | 1.8% |
| 2023 | 33.7% | 55.1% | 5% | 0.3% | 1.8% | 2.8% |
| 2022 | 4.4% | 81.5% | 2% | 3.8% | — | 3.8% |
| 2021 | 50.8% | 30.8% | 16.2% | 2.3% | — | — |
| 2020 | 71.1% | 24.9% | 1.9% | 1.4% | 0.2% | 0.3% |
| 2019 | 40% | 40% | 15.2% | 2.2% | 0.3% | 0.3% |
Buckhead Energy computes every figure on this page from grouped records in public oil and gas data. The page shows counts, sums, percentiles and indexes only; it does not list individual wells, leases or permits.
Counts under 3 wells and percentiles under 5 wells are withheld; totals are floors.
Share is the formation’s permits as a percent of the state’s permits that year. Median lateral length is published only when at least 5 permits stand behind it.
Last computed: 2026-10-02. These figures are informational only and are not a valuation of any mineral or royalty interest.
The Southern California Borderlands Province is a formation/play group recorded in California, with 931 wells on file across 35 distinct operators of record. Operators have filed 59 drilling permits targeting the Southern California Borderlands Province in the 24-month window at summary refresh. These are stored records, not a live measure of drilling.
Recorded formation activity provides regional context. It does not establish ownership, future production, royalty payments or a value for an individual tract. Consult qualified professionals about your specific interest.
931 wells target the Southern California Borderlands Province in California, worked by 35 recorded operators, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-10-02.
The Southern California Borderlands Province operators with the most wells on record in California are Tidelands Oil Production Company, California Resources Production, Beta Operating Company, Thums Long Beach Company and Dcor. The full ranking is in the table on this page. Formation summary date: 2026-10-02.
Operators filed 59 drilling permits targeting the Southern California Borderlands Province in the 24-month window at source refresh, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-10-02.
Operators filed 59 new drilling permits targeting the Southern California Borderlands Province in California in the 24-month window at source refresh. New permits and spuds record reported activity stages; they do not establish ongoing drilling, per Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-10-02.
Southern California Borderlands Province activity in California includes 931 wells on record and 35 recorded operators, with 59 drilling permits filed in the 24-month window at source refresh — from Buckhead Energy analysis of public oil and gas data. Formation summary date: 2026-10-02.
The primary counties recorded for Southern California Borderlands Province in California are Los Angeles, Orange, Santa Catalina Area, Los Angeles Offshore, Orange Offshore. Formation summary date: 2026-10-02.
Value depends on your net mineral acres or royalty decimal, the operator, the remaining drilling locations, and current oil and gas prices. This page is informational only, not a valuation. Formation summary date: 2026-10-02.
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Formation: Southern California Borderlands Province
State: California
Total wells: 931
Recorded operators: 35
Permits 24mo: 59
Summary date: 2026-10-02
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