Masters William F
Operator of record for 8 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Masters William F is the operator of record for 8 catalogued U.S. oil & gas wells in 1 state. 1 (13%) are active, 7 (88%) plugged & abandoned. Its largest concentration is in Illinois, with 8 wells (100% of its portfolio).
Wells operated
8
Active
1
Plugged
7
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 8 |
Well mix
- Oil wells
- 3
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 13%
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Claim your operator profileWhere does Masters William F operate?
Masters William F's catalogued wells are spread across 1 state: Illinois (8). Its 8 Illinois wells are 0.0% of the 174,478 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 Masters William F’s wells are active, plugged or orphaned?
13% of Masters William F's catalogued wells are active, 16 percentage points below the national share of 29%. 88% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Masters William F operate?
By product class, 3 (38%) 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 Kasey 1 in Cumberland, IL at 3,305 ft. The wells listed below sit in Cumberland (IL), Effingham (IL), Coles (IL) and Douglas (IL).
Notable wells operated by Masters William F
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Kasey 1 | 12-035-22271 | Plugged & abandoned | Other type | Cumberland, IL | Masters, William F. | 3,305 ft |
| Zumbahlen 1 | 12-049-23007 | Plugged & abandoned | Other type | Effingham, IL | Masters, William F. | 2,605 ft |
| Wendt 1 | 12-049-22749 | Plugged & abandoned | Other type | Effingham, IL | Masters, William F. | 2,491 ft |
| Tegeler 1 | 12-049-22702 | Plugged & abandoned | Other type | Effingham, IL | Masters, William F. | 2,477 ft |
| Siemer 1 | 12-049-22668 | Plugged & abandoned | Oil | Effingham, IL | Masters, William F. | 2,426 ft |
| Hagen 1-A | 12-029-22491 | Plugged & abandoned | Oil | Coles, IL | Masters, William F. | 1,794 ft |
| Zoller, Paul 1 | 12-041-21396 | Plugged & abandoned | Other type | Douglas, IL | Masters, William F. | 1,760 ft |
| Jurgens 1-A | 12-041-21222 | Active | Oil | Douglas, IL | Masters, William F. | 1,685 ft |
Deepest first where depth is published. See all 8 wells →
Frequently asked questions
How many wells does Masters William F operate?
Masters William F is the operator of record for 8 catalogued oil & gas wells, with the largest concentration in Illinois (8). Only wells in states WellCensus has ingested are counted.
How many of Masters William F's wells are still active?
1 of Masters William F's catalogued wells are active; 7 are plugged & abandoned.
In which states does Masters William F operate wells?
Masters William F is the operator of record for wells in Illinois (8).
Does Masters William F operate mostly oil or gas wells?
3 of Masters William F's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Masters William F's deepest well?
Among wells with a published depth, Kasey 1 in Cumberland, IL is the deepest at 3,305 ft.
Where Masters William F'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, “Masters William F — well portfolio”, https://wellcensus.com/operators/masters-william-f-95306 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).