Monterey Exploration
Operator of record for 2 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: Monterey Exploration · Monterey Exploration Co.
At a glance
Monterey Exploration is the operator of record for 2 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 2 (100%) are plugged & abandoned. Its largest concentration is in California, with 1 wells (50% of its portfolio).
Wells operated
2
Active
0
Plugged
2
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 1 |
| Montana | 1 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Monterey Exploration to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Monterey Exploration operate?
Monterey Exploration's catalogued wells are spread across 2 states: California (1) and Montana (1). Its 1 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 Monterey Exploration’s wells are active, plugged or orphaned?
0% of Monterey Exploration'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 Monterey Exploration operate?
By product class, 0 (0%) 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 Ertl 1 in Musselshell, MT at 4,133 ft. The wells listed below sit in Musselshell (MT) and Santa Barbara (CA). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Monterey Exploration
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Ertl 1 | 25-065-21012 | Plugged & abandoned | Other type | Musselshell, MT | Monterey Exploration | 4,133 ft |
| Lease by Monterey Exploration Co. 1 | 04-083-03870 | Plugged & abandoned | Other type | Santa Barbara, CA | Monterey Exploration Co. | — |
Deepest first where depth is published. See all 2 wells →
Frequently asked questions
How many wells does Monterey Exploration operate?
Monterey Exploration is the operator of record for 2 catalogued oil & gas wells, with the largest concentration in California (1). Only wells in states WellCensus has ingested are counted.
How many of Monterey Exploration's wells are still active?
0 of Monterey Exploration's catalogued wells are active; 2 are plugged & abandoned.
In which states does Monterey Exploration operate wells?
Monterey Exploration is the operator of record for wells in California (1) and Montana (1).
Does Monterey Exploration operate mostly oil or gas wells?
0 of Monterey Exploration's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Monterey Exploration's deepest well?
Among wells with a published depth, Ertl 1 in Musselshell, MT is the deepest at 4,133 ft.
Where Monterey Exploration'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, “Monterey Exploration — well portfolio”, https://wellcensus.com/operators/monterey-exploration-60715 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).