Malco Refineries
Operator of record for 4 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: MALCO REFINERIES INC. · MALCO REFINERIES INCORPORATED
At a glance
Malco Refineries is the operator of record for 4 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 4 (100%) are plugged & abandoned. Its largest concentration is in Wyoming, with 3 wells (75% of its portfolio).
Wells operated
4
Active
0
Plugged
4
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Wyoming | 3 |
| Colorado | 1 |
Well mix
- Oil wells
- 3
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim Malco Refineries to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Malco Refineries operate?
Malco Refineries's catalogued wells are spread across 2 states: Wyoming (3) and Colorado (1). Its 3 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 Malco Refineries’s wells are active, plugged or orphaned?
0% of Malco Refineries'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 Malco Refineries operate?
By product class, 3 (75%) 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 1 Milliron-State in Morgan, CO at 6,390 ft. The wells listed below sit in Morgan (CO) and Washakie (WY). 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 Malco Refineries
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| 1 Milliron-State | 05-087-06164 | Plugged & abandoned | Other type | Morgan, CO | Malco Refineries Inc. | 6,390 ft |
| State 2 | 49-043-05255 | Plugged & abandoned | Oil | Washakie, WY | Malco Refineries Incorporated | 5,441 ft |
| Govt 1 | 49-043-05496 | Plugged & abandoned | Oil | Washakie, WY | Malco Refineries Incorporated | 2,840 ft |
| Pearce 1 | 49-043-05533 | Plugged & abandoned | Oil | Washakie, WY | Malco Refineries Incorporated | 2,070 ft |
Deepest first where depth is published. See all 4 wells →
Frequently asked questions
How many wells does Malco Refineries operate?
Malco Refineries is the operator of record for 4 catalogued oil & gas wells, with the largest concentration in Wyoming (3). Only wells in states WellCensus has ingested are counted.
How many of Malco Refineries's wells are still active?
0 of Malco Refineries's catalogued wells are active; 4 are plugged & abandoned.
In which states does Malco Refineries operate wells?
Malco Refineries is the operator of record for wells in Wyoming (3) and Colorado (1).
Does Malco Refineries operate mostly oil or gas wells?
3 of Malco Refineries's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Malco Refineries's deepest well?
Among wells with a published depth, 1 Milliron-State in Morgan, CO is the deepest at 6,390 ft.
Where Malco Refineries'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, “Malco Refineries — well portfolio”, https://wellcensus.com/operators/malco-refineries-18534 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).