Mullen William
Operator of record for 22 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Mullen William is the operator of record for 22 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 22 (100%) are plugged & abandoned. Its largest concentration is in Oklahoma, with 22 wells (100% of its portfolio).
Wells operated
22
Active
0
Plugged
22
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Oklahoma | 22 |
Well mix
- Oil wells
- 10
- Gas wells
- 4
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Mullen William operate?
Mullen William's catalogued wells are spread across 1 state: Oklahoma (22). Its 22 Oklahoma wells are 0.0% of the 456,595 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 Mullen William’s wells are active, plugged or orphaned?
0% of Mullen William'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 Mullen William operate?
By product class, 10 (45%) are oil wells and 4 (18%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Major (OK), Kingfisher (OK), Alfalfa (OK), Garfield (OK), Noble (OK) and Oklahoma (OK).
Notable wells operated by Mullen William
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Zoa #1 | 35-093-21178 | Plugged & abandoned | Oil | Major, OK | Mullen William Company | — |
| Mack #1 | 35-073-21976 | Plugged & abandoned | Oil | Kingfisher, OK | Mullen William Company | — |
| Barrows #1 | 35-003-20198 | Plugged & abandoned | Oil | Alfalfa, OK | Mullen William Company | — |
| Barnes #1 | 35-047-23980 | Plugged & abandoned | Other type | Garfield, OK | Mullen William Company | — |
| Oliver #1 | 35-073-22867 | Plugged & abandoned | Oil | Kingfisher, OK | Mullen William Company | — |
| Horlacher #1 | 35-103-00323 | Plugged & abandoned | Oil | Noble, OK | Mullen William Company | — |
| Horlacher #2 | 35-103-20910 | Plugged & abandoned | Gas | Noble, OK | Mullen William Company | — |
| Meyer Tony Estate #1 | 35-103-22085 | Plugged & abandoned | Oil | Noble, OK | Mullen William Company | — |
| Meyer Don #1 | 35-103-22378 | Plugged & abandoned | Oil | Noble, OK | Mullen William Company | — |
| Treeman #1 | 35-103-22916 | Plugged & abandoned | Other type | Noble, OK | Mullen William Company | — |
| Meyer #1 | 35-109-20192 | Plugged & abandoned | Other type | Oklahoma, OK | Mullen William Company | — |
| Mayer #1-22 | 35-109-21232 | Plugged & abandoned | Gas | Oklahoma, OK | Mullen William Company | — |
Deepest first where depth is published. See all 22 wells →
Frequently asked questions
How many wells does Mullen William operate?
Mullen William is the operator of record for 22 catalogued oil & gas wells, with the largest concentration in Oklahoma (22). Only wells in states WellCensus has ingested are counted.
How many of Mullen William's wells are still active?
0 of Mullen William's catalogued wells are active; 22 are plugged & abandoned.
In which states does Mullen William operate wells?
Mullen William is the operator of record for wells in Oklahoma (22).
Does Mullen William operate mostly oil or gas wells?
10 of Mullen William's catalogued wells are oil wells and 4 are gas wells; the rest are injection, service or unclassified wells.
Where Mullen William'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, “Mullen William — well portfolio”, https://wellcensus.com/operators/mullen-william-122 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).