Schofield John O
Operator of record for 7 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Schofield John O is the operator of record for 7 catalogued U.S. oil & gas wells in 1 state. 6 (86%) are active, 1 (14%) plugged & abandoned. Its largest concentration is in Illinois, with 7 wells (100% of its portfolio).
Wells operated
7
Active
6
Plugged
1
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 7 |
Well mix
- Oil wells
- 6
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 86%
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Claim your operator profileWhere does Schofield John O operate?
Schofield John O's catalogued wells are spread across 1 state: Illinois (7). Its 7 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 Schofield John O’s wells are active, plugged or orphaned?
86% of Schofield John O's catalogued wells are active, 57 percentage points above the national share of 29%. 14% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Schofield John O operate?
By product class, 6 (86%) 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 Mary 1 in White, IL at 4,130 ft. The wells listed below sit in White (IL), Madison (IL) and Hardin (IL).
Notable wells operated by Schofield John O
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Mary 1 | 12-193-33326 | Active | Oil | White, IL | Schofield, John O. Inc. | 4,130 ft |
| Emerson-Schofield 4 | 12-193-33086 | Active | Oil | White, IL | Schofield, John O. Inc. | 4,100 ft |
| Schofield - Maunie 4 | 12-193-33014 | Active | Oil | White, IL | Schofield, John O. Inc. | 4,096 ft |
| Slemaker-Schofield 1 | 12-193-32705 | Active | Oil | White, IL | Schofield, John O. Inc. | 4,062 ft |
| Emerson-Schofield 5 | 12-193-33114 | Active | Oil | White, IL | Schofield, John O. Inc. | 3,890 ft |
| Hunsche-Krump Community 1 | 12-119-29295 | Active | Oil | Madison, IL | Schofield, John O. Inc. | 1,910 ft |
| Schofield - Hicks Dome 1 | 12-069-21292 | Plugged & abandoned | Other type | Hardin, IL | Schofield, John O. Inc. | 77 ft |
Deepest first where depth is published. See all 7 wells →
Frequently asked questions
How many wells does Schofield John O operate?
Schofield John O is the operator of record for 7 catalogued oil & gas wells, with the largest concentration in Illinois (7). Only wells in states WellCensus has ingested are counted.
How many of Schofield John O's wells are still active?
6 of Schofield John O's catalogued wells are active; 1 are plugged & abandoned.
In which states does Schofield John O operate wells?
Schofield John O is the operator of record for wells in Illinois (7).
Does Schofield John O operate mostly oil or gas wells?
6 of Schofield John O's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Schofield John O's deepest well?
Among wells with a published depth, Mary 1 in White, IL is the deepest at 4,130 ft.
Where Schofield John O'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, “Schofield John O — well portfolio”, https://wellcensus.com/operators/schofield-john-o-101434 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).