Cyprus Mines
Operator of record for 5 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: CYPRUS MINES CORP · Cyprus Mines
At a glance
Cyprus Mines is the operator of record for 5 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 5 (100%) are plugged & abandoned. Its largest concentration is in Wyoming, with 4 wells (80% of its portfolio).
Wells operated
5
Active
0
Plugged
5
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Wyoming | 4 |
| Montana | 1 |
Well mix
- Oil wells
- 4
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Cyprus Mines to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Cyprus Mines operate?
Cyprus Mines's catalogued wells are spread across 2 states: Wyoming (4) and Montana (1). Its 4 Wyoming wells are 0.0% of the 129,957 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 Cyprus Mines’s wells are active, plugged or orphaned?
0% of Cyprus Mines'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 Cyprus Mines operate?
By product class, 4 (80%) 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 State 1 in Sheridan, WY at 9,579 ft. The wells listed below sit in Sheridan (WY), Washakie (WY), Hot Springs (WY) and Rosebud (MT). 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 Cyprus Mines
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| State 1 | 49-033-05045 | Plugged & abandoned | Oil | Sheridan, WY | Cyprus Mines Corp | 9,579 ft |
| Govt Muirhead 1 | 49-043-05025 | Plugged & abandoned | Oil | Washakie, WY | Cyprus Mines Corp | 4,605 ft |
| Orchard 1 | 49-017-05077 | Plugged & abandoned | Oil | Hot Springs, WY | Cyprus Mines Corp | 4,237 ft |
| Govt 1 | 49-017-05066 | Plugged & abandoned | Oil | Hot Springs, WY | Cyprus Mines Corp | 4,150 ft |
| Government 1 | 25-087-05055 | Plugged & abandoned | Other type | Rosebud, MT | Cyprus Mines | 4,100 ft |
Deepest first where depth is published. See all 5 wells →
Frequently asked questions
How many wells does Cyprus Mines operate?
Cyprus Mines is the operator of record for 5 catalogued oil & gas wells, with the largest concentration in Wyoming (4). Only wells in states WellCensus has ingested are counted.
How many of Cyprus Mines's wells are still active?
0 of Cyprus Mines's catalogued wells are active; 5 are plugged & abandoned.
In which states does Cyprus Mines operate wells?
Cyprus Mines is the operator of record for wells in Wyoming (4) and Montana (1).
Does Cyprus Mines operate mostly oil or gas wells?
4 of Cyprus Mines's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Cyprus Mines's deepest well?
Among wells with a published depth, State 1 in Sheridan, WY is the deepest at 9,579 ft.
Where Cyprus Mines'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, “Cyprus Mines — well portfolio”, https://wellcensus.com/operators/cyprus-mines-28222 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).