Thornbury Drilling
Operator of record for 11 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Thornbury Drilling is the operator of record for 11 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 10 (91%) are plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in California, with 11 wells (100% of its portfolio).
Wells operated
11
Active
0
Plugged
10
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| California | 11 |
Well mix
- Oil wells
- 5
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Thornbury Drilling operate?
Thornbury Drilling's catalogued wells are spread across 1 state: California (11). Its 11 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 Thornbury Drilling’s wells are active, plugged or orphaned?
0% of Thornbury Drilling's catalogued wells are active, 29 percentage points below the national share of 29%. 91% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Thornbury Drilling operate?
By product class, 5 (45%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Santa Barbara (CA), Santa Barbara Offshore (CA), San Luis Obispo (CA) and Ventura (CA).
Notable wells operated by Thornbury Drilling
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Community 3 | 04-083-04315 | Plugged & abandoned | Other type | Santa Barbara, CA | Thornbury Drilling Co. | — |
| Carpinteria Community 1 | 04-283-04313 | Plugged & abandoned | Other type | Santa Barbara Offshore, CA | Thornbury Drilling Co. | — |
| Canfield 1 | 04-083-04312 | Plugged & abandoned | Other type | Santa Barbara, CA | Thornbury Drilling Co. | — |
| Carpinteria Community 2 | 04-283-04314 | Plugged & abandoned | Other type | Santa Barbara Offshore, CA | Thornbury Drilling Co. | — |
| Union Sugar 1-75 | 04-079-00546 | Plugged & abandoned | Other type | San Luis Obispo, CA | Thornbury Drilling Co. | — |
| Gilliland 1 | 04-083-02544 | Plugged & abandoned | Oil | Santa Barbara, CA | Thornbury Drilling Co. | — |
| Lloyd 1 | 04-083-02545 | Plugged & abandoned | Oil | Santa Barbara, CA | Thornbury Drilling Co. | — |
| Thornbury-Oceanic 1 | 04-111-00645 | Plugged & abandoned | Oil | Ventura, CA | Thornbury Drilling Co. | — |
| Thornbury-Oceanic 2 | 04-111-00646 | Plugged & abandoned | Oil | Ventura, CA | Thornbury Drilling Co. | — |
| Union Sugar 1-152 | 04-079-00547 | Plugged & abandoned | Other type | San Luis Obispo, CA | Thornbury Drilling Co. | — |
| Carpinteria Community 1 | 04-083-04313 | Orphaned | Oil | Santa Barbara, CA | Thornbury Drilling Co. | — |
Deepest first where depth is published. See all 11 wells →
Frequently asked questions
How many wells does Thornbury Drilling operate?
Thornbury Drilling is the operator of record for 11 catalogued oil & gas wells, with the largest concentration in California (11). Only wells in states WellCensus has ingested are counted.
How many of Thornbury Drilling's wells are still active?
0 of Thornbury Drilling's catalogued wells are active; 10 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Thornbury Drilling operate wells?
Thornbury Drilling is the operator of record for wells in California (11).
Does Thornbury Drilling operate mostly oil or gas wells?
5 of Thornbury Drilling's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Thornbury Drilling'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, “Thornbury Drilling — well portfolio”, https://wellcensus.com/operators/thornbury-drilling-5648 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).