Westlake Oil
Operator of record for 54 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Westlake Oil is the operator of record for 54 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 0 (0%) are plugged & abandoned and 54 flagged as orphaned. Its largest concentration is in California, with 54 wells (100% of its portfolio).
Wells operated
54
Active
0
Plugged
0
Orphaned
54
Portfolio by state
| State | Wells |
|---|---|
| California | 54 |
Well mix
- Oil wells
- 54
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim Westlake Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Westlake Oil operate?
Westlake Oil's catalogued wells are spread across 1 state: California (54). Its 54 California wells are 0.0% of the 242,471 catalogued in that state — its largest share of any state. Counts cover only states whose registries WellCensus has ingested with operator names; wells in Nebraska and Texas (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of Westlake Oil’s wells are active, plugged or orphaned?
0% of Westlake Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 0% are plugged & abandoned, against 47% nationally. 54 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Westlake Oil operate?
By product class, 54 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%.
Notable wells operated by Westlake Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Lease by Westlake Oil Co. 17 | 04-037-26186 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 16A | 04-037-26187 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 16 | 04-037-26188 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 15A | 04-037-26189 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 19 | 04-037-26190 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 15 | 04-037-26191 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 18 | 04-037-26192 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 17A | 04-037-26193 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 18A | 04-037-26194 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 12A | 04-037-26195 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 12 | 04-037-26196 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
| Lease by Westlake Oil Co. 1 | 04-037-26185 | Orphaned | Oil | Los Angeles, CA | Westlake Oil Co. | — |
Deepest first where depth is published. See all 54 wells →
Frequently asked questions
How many wells does Westlake Oil operate?
Westlake Oil is the operator of record for 54 catalogued oil & gas wells, with the largest concentration in California (54). Only wells in states WellCensus has ingested are counted.
How many of Westlake Oil's wells are still active?
0 of Westlake Oil's catalogued wells are active; 0 are plugged & abandoned and 54 are flagged as orphaned.
In which states does Westlake Oil operate wells?
Westlake Oil is the operator of record for wells in California (54).
Does Westlake Oil operate mostly oil or gas wells?
54 of Westlake Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Westlake Oil's wells are
About this data
Source: State oil & gas regulator registries (operator of record as filed, exact-normalized across states) plus the USGS United States Documented Orphaned Well Database (2026), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Westlake Oil — well portfolio”, https://wellcensus.com/operators/westlake-oil-3657 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).