Mcmillin & Johnson Oil
Operator of record for 6 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Mcmillin & Johnson Oil is the operator of record for 6 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 5 (83%) are plugged & abandoned. Its largest concentration is in Utah, with 6 wells (100% of its portfolio).
Wells operated
6
Active
0
Plugged
5
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Utah | 6 |
Well mix
- Oil wells
- 1
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Mcmillin & Johnson Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Mcmillin & Johnson Oil operate?
Mcmillin & Johnson Oil's catalogued wells are spread across 1 state: Utah (6). Its 6 Utah wells are 0.0% of the 40,139 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 Mcmillin & Johnson Oil’s wells are active, plugged or orphaned?
0% of Mcmillin & Johnson Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 83% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Mcmillin & Johnson Oil operate?
By product class, 1 (17%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%.
Notable wells operated by Mcmillin & Johnson Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| USA 1 | 43-019-10714 | Other status | Oil | Grand, UT | McMillin & Johnson Oil | — |
| Federal 1 | 43-019-10709 | Plugged & abandoned | Other type | Grand, UT | McMillin & Johnson Oil | — |
| Federal 1 | 43-019-10710 | Plugged & abandoned | Other type | Grand, UT | McMillin & Johnson Oil | — |
| State 2 | 43-019-10713 | Plugged & abandoned | Other type | Grand, UT | McMillin & Johnson Oil | — |
| State 1 | 43-019-10712 | Plugged & abandoned | Other type | Grand, UT | McMillin & Johnson Oil | — |
| Government 1 | 43-019-10711 | Plugged & abandoned | Other type | Grand, UT | McMillin & Johnson Oil | — |
Deepest first where depth is published. See all 6 wells →
Frequently asked questions
How many wells does Mcmillin & Johnson Oil operate?
Mcmillin & Johnson Oil is the operator of record for 6 catalogued oil & gas wells, with the largest concentration in Utah (6). Only wells in states WellCensus has ingested are counted.
How many of Mcmillin & Johnson Oil's wells are still active?
0 of Mcmillin & Johnson Oil's catalogued wells are active; 5 are plugged & abandoned.
In which states does Mcmillin & Johnson Oil operate wells?
Mcmillin & Johnson Oil is the operator of record for wells in Utah (6).
Does Mcmillin & Johnson Oil operate mostly oil or gas wells?
1 of Mcmillin & Johnson Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Mcmillin & Johnson 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, “Mcmillin & Johnson Oil — well portfolio”, https://wellcensus.com/operators/mcmillin-johnson-oil-133254 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).