Zenith Oil
Operator of record for 11 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: Zenith Oil · Zenith Oil Co. · Zenith Oil Corp
At a glance
Zenith Oil is the operator of record for 11 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 11 (100%) are plugged & abandoned. Its largest concentration is in California, with 6 wells (55% of its portfolio).
Wells operated
11
Active
0
Plugged
11
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 6 |
| Illinois | 3 |
| Montana | 2 |
Well mix
- Oil wells
- 6
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Zenith Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Zenith Oil operate?
Zenith Oil's catalogued wells are spread across 3 states: California (6), Illinois (3) and Montana (2). Its 2 Montana wells are 0.0% of the 42,011 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 Zenith Oil’s wells are active, plugged or orphaned?
0% of Zenith Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Zenith Oil operate?
By product class, 6 (55%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Orcutt 1 in Toole, MT at 2,217 ft. The wells listed below sit in Toole (MT), Wabash (IL), Clark (IL), Fresno (CA), Los Angeles (CA) and Kern (CA). State filings spell the name 3 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Zenith Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Orcutt 1 | 25-101-05052 | Plugged & abandoned | Other type | Toole, MT | Zenith Oil | 2,217 ft |
| Pederson 1 | 25-101-06120 | Plugged & abandoned | Other type | Toole, MT | Zenith Oil | 2,090 ft |
| Schafer 1-A | 12-185-05403 | Plugged & abandoned | Other type | Wabash, IL | Zenith Oil Corp | 1,995 ft |
| Reeds, Clarence 1-A | 12-023-03093 | Plugged & abandoned | Oil | Clark, IL | Zenith Oil Corp | 1,020 ft |
| Bennett, Nora E. Estate 1 | 12-023-03084 | Plugged & abandoned | Oil | Clark, IL | Zenith Oil Corp | 1,001 ft |
| Lease by Zenith Oil Co. 1 | 04-019-06445 | Plugged & abandoned | Other type | Fresno, CA | Zenith Oil Co. | — |
| Lease by Zenith Oil Co. 3 | 04-037-18734 | Plugged & abandoned | Oil | Los Angeles, CA | Zenith Oil Co. | — |
| Lease by Zenith Oil Co. 2 | 04-019-06446 | Plugged & abandoned | Other type | Fresno, CA | Zenith Oil Co. | — |
| Lease by Zenith Oil Co. 1 | 04-029-12673 | Plugged & abandoned | Oil | Kern, CA | Zenith Oil Co. | — |
| Lease by Zenith Oil Co. 1 | 04-037-18732 | Plugged & abandoned | Oil | Los Angeles, CA | Zenith Oil Co. | — |
| Lease by Zenith Oil Co. 2 | 04-037-18733 | Plugged & abandoned | Oil | Los Angeles, CA | Zenith Oil Co. | — |
Deepest first where depth is published. See all 11 wells →
Frequently asked questions
How many wells does Zenith Oil operate?
Zenith Oil is the operator of record for 11 catalogued oil & gas wells, with the largest concentration in California (6). Only wells in states WellCensus has ingested are counted.
How many of Zenith Oil's wells are still active?
0 of Zenith Oil's catalogued wells are active; 11 are plugged & abandoned.
In which states does Zenith Oil operate wells?
Zenith Oil is the operator of record for wells in California (6), Illinois (3) and Montana (2).
Does Zenith Oil operate mostly oil or gas wells?
6 of Zenith Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Zenith Oil's deepest well?
Among wells with a published depth, Orcutt 1 in Toole, MT is the deepest at 2,217 ft.
Where Zenith 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, “Zenith Oil — well portfolio”, https://wellcensus.com/operators/zenith-oil-7501 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).