Gibraltar Oil
Operator of record for 12 catalogued wells across 5 states. Every well below links to its full registry page.
Filed as: GIBRALTAR OIL CO · GIBRALTAR OIL CORPORATION · Gibraltar Oil · Gibraltar Oil Co
At a glance
Gibraltar Oil is the operator of record for 12 catalogued U.S. oil & gas wells in 5 states. None is listed as active, 8 (67%) are plugged & abandoned. Its largest concentration is in Michigan, with 7 wells (58% of its portfolio).
Wells operated
12
Active
0
Plugged
8
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Michigan | 7 |
| Colorado | 2 |
| Mississippi | 1 |
| Montana | 1 |
| Utah | 1 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Gibraltar Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Gibraltar Oil operate?
Gibraltar Oil's catalogued wells are spread across 5 states: Michigan (7), Colorado (2), Mississippi (1), Montana (1) and Utah (1). Its 7 Michigan wells are 0.0% of the 85,673 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 Gibraltar Oil’s wells are active, plugged or orphaned?
0% of Gibraltar Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 67% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Gibraltar Oil 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 Larson 1 in Valley, MT at 6,157 ft. The wells listed below sit in Valley (MT), Morgan (CO), Washington (CO), Huron (MI), Saint Clair (MI) and Macomb (MI) and other counties. State filings spell the name 4 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Gibraltar Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Larson 1 | 25-105-60026 | Plugged & abandoned | Other type | Valley, MT | Gibraltar Oil | 6,157 ft |
| 1 Hemphill | 05-087-06221 | Plugged & abandoned | Other type | Morgan, CO | Gibraltar Oil Co | 6,065 ft |
| 1 Schmidt | 05-121-06860 | Plugged & abandoned | Other type | Washington, CO | Gibraltar Oil Co | 4,993 ft |
| Sergeant, M. W. Jr. 1-29 | 21-063-34302 | Plugged & abandoned | Other type | Huron, MI | Gibraltar Oil Co | 3,710 ft |
| Gesquiere, Ronald Et Al 1-20 | 21-147-34114 | Plugged & abandoned | Other type | Saint Clair, MI | Gibraltar Oil Co | 2,380 ft |
| Klettner, Harold 1-22 | 21-147-35308 | Plugged & abandoned | Other type | Saint Clair, MI | Gibraltar Oil Co | 1,280 ft |
| Kulczynski & Mccloud 1-8 | 21-147-35560 | Other status | Other type | Saint Clair, MI | Gibraltar Oil Co | — |
| Chrostowski, Victor 1 | 21-099-25599 | Other status | Other type | Macomb, MI | Gibraltar Oil Co | — |
| B A Basinger 1 1 | 23-095-00038 | Plugged & abandoned | Other type | Monroe, MS | Gibraltar Oil Corporation | — |
| 1 | 43-037-20433 | Plugged & abandoned | Other type | San Juan, UT | Gibraltar Oil Co | — |
| William Ackerman 1-8 | 21-063-35103 | Other status | Other type | Huron, MI | Gibraltar Oil Co | — |
| Lammerdng-Monnier-Wolf-Shome 1 | 21-147-25568 | Other status | Other type | Saint Clair, MI | Gibraltar Oil Co | — |
Deepest first where depth is published. See all 12 wells →
Frequently asked questions
How many wells does Gibraltar Oil operate?
Gibraltar Oil is the operator of record for 12 catalogued oil & gas wells, with the largest concentration in Michigan (7). Only wells in states WellCensus has ingested are counted.
How many of Gibraltar Oil's wells are still active?
0 of Gibraltar Oil's catalogued wells are active; 8 are plugged & abandoned.
In which states does Gibraltar Oil operate wells?
Gibraltar Oil is the operator of record for wells in Michigan (7), Colorado (2), Mississippi (1), Montana (1) and Utah (1).
Does Gibraltar Oil operate mostly oil or gas wells?
0 of Gibraltar Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Gibraltar Oil's deepest well?
Among wells with a published depth, Larson 1 in Valley, MT is the deepest at 6,157 ft.
Where Gibraltar Oil's wells are
- Oil & gas wells in Michigan· 7 operated by Gibraltar Oil
- Oil & gas wells in Colorado· 2 operated by Gibraltar Oil
- Oil & gas wells in Mississippi· 1 operated by Gibraltar Oil
- Oil & gas wells in Montana· 1 operated by Gibraltar Oil
- Oil & gas wells in Utah· 1 operated by Gibraltar Oil
- Largest U.S. well operators
- All well operators
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, “Gibraltar Oil — well portfolio”, https://wellcensus.com/operators/gibraltar-oil-18558 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).