Monahan Rex
Operator of record for 10 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: MONAHAN REX · Monahan, Rex
At a glance
Monahan Rex is the operator of record for 10 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 5 (50%) are plugged & abandoned. Its largest concentration is in Wyoming, with 6 wells (60% of its portfolio).
Wells operated
10
Active
0
Plugged
5
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Wyoming | 6 |
| Arkansas | 2 |
| Utah | 2 |
Well mix
- Oil wells
- 3
- Gas wells
- 5
- Shut-in
- 3
- Active share
- 0%
Is this your company?
Claim Monahan Rex to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Monahan Rex operate?
Monahan Rex's catalogued wells are spread across 3 states: Wyoming (6), Arkansas (2) and Utah (2). Its 2 Arkansas wells are 0.0% of the 33,791 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 Monahan Rex’s wells are active, plugged or orphaned?
0% of Monahan Rex's catalogued wells are active, 29 percentage points below the national share of 29%. 50% are plugged & abandoned, against 47% nationally. 3 wells (30%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Monahan Rex operate?
By product class, 3 (30%) are oil wells and 5 (50%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Williams, C W 1 in Lafayette, AR at 9,515 ft. The wells listed below sit in Lafayette (AR), Campbell (WY), Columbia (AR) and Grand (UT). 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 Monahan Rex
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Williams, C W 1 | 03-073-10821 | Plugged & abandoned | Oil | Lafayette, AR | Monahan, Rex | 9,515 ft |
| Sandbar Unit B 30 | 49-005-20638 | Plugged & abandoned | Oil | Campbell, WY | Monahan Rex | 7,430 ft |
| Parks 1 | 03-027-10979 | Plugged & abandoned | Oil | Columbia, AR | Monahan, Rex | 7,417 ft |
| Sandbar Unit B 39 | 49-005-20656 | Plugged & abandoned | Injection | Campbell, WY | Monahan Rex | 7,278 ft |
| Sandbar West B Unit 91 | 49-005-20837 | Plugged & abandoned | Injection | Campbell, WY | Monahan Rex | 7,025 ft |
| M J Harris W-0108347 1a | 49-005-29642 | Shut-in | Gas | Campbell, WY | Monahan Rex | 600 ft |
| M J Harris W-0108347 2 | 49-005-29643 | Shut-in | Gas | Campbell, WY | Monahan Rex | 580 ft |
| M J Harris W-0108347 3 | 49-005-29644 | Shut-in | Gas | Campbell, WY | Monahan Rex | 580 ft |
| Federal 24-2 | 43-019-30619 | Other status | Gas | Grand, UT | Monahan, Rex | — |
| Federal 10-2 | 43-019-30618 | Other status | Gas | Grand, UT | Monahan, Rex | — |
Deepest first where depth is published. See all 10 wells →
Frequently asked questions
How many wells does Monahan Rex operate?
Monahan Rex is the operator of record for 10 catalogued oil & gas wells, with the largest concentration in Wyoming (6). Only wells in states WellCensus has ingested are counted.
How many of Monahan Rex's wells are still active?
0 of Monahan Rex's catalogued wells are active; 5 are plugged & abandoned.
In which states does Monahan Rex operate wells?
Monahan Rex is the operator of record for wells in Wyoming (6), Arkansas (2) and Utah (2).
Does Monahan Rex operate mostly oil or gas wells?
3 of Monahan Rex's catalogued wells are oil wells and 5 are gas wells; the rest are injection, service or unclassified wells.
What is Monahan Rex's deepest well?
Among wells with a published depth, Williams, C W 1 in Lafayette, AR is the deepest at 9,515 ft.
Where Monahan Rex'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, “Monahan Rex — well portfolio”, https://wellcensus.com/operators/monahan-rex-19100 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).