Fairfield Oil
Operator of record for 30 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Fairfield Oil is the operator of record for 30 catalogued U.S. oil & gas wells in 1 state. 9 (30%) are active, 15 (50%) plugged & abandoned and 3 flagged as orphaned. Its largest concentration is in Illinois, with 30 wells (100% of its portfolio).
Wells operated
30
Active
9
Plugged
15
Orphaned
3
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 30 |
Well mix
- Oil wells
- 19
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 30%
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Claim your operator profileWhere does Fairfield Oil operate?
Fairfield Oil's catalogued wells are spread across 1 state: Illinois (30). Its 30 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 Fairfield Oil’s wells are active, plugged or orphaned?
30% of Fairfield Oil's catalogued wells are active, close to the national share of 29%. 50% are plugged & abandoned, against 47% nationally. 3 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Fairfield Oil operate?
By product class, 19 (63%) 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 Hooper 1 in Wayne, IL at 4,234 ft. The wells listed below sit in Wayne (IL), White (IL) and Clay (IL).
Notable wells operated by Fairfield Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Hooper 1 | 12-191-31254 | Other status | Oil | Wayne, IL | Fairfield Oil Company | 4,234 ft |
| Wagner 1-A | 12-191-31449 | Active | Oil | Wayne, IL | Fairfield Oil Company | 4,205 ft |
| Shreve 2 | 12-191-30481 | Plugged & abandoned | Other type | Wayne, IL | Fairfield Oil Company | 4,195 ft |
| Vaughan, R. T. 2 | 12-191-30447 | Plugged & abandoned | Oil | Wayne, IL | Fairfield Oil Company | 4,151 ft |
| Simpson 1 | 12-191-30482 | Plugged & abandoned | Oil | Wayne, IL | Fairfield Oil Company | 4,150 ft |
| McIntosh 1-A | 12-193-29158 | Orphaned | Oil | White, IL | Fairfield Oil Company | 4,142 ft |
| Vaughan, R. T. 1 | 12-191-30405 | Active | Oil | Wayne, IL | Fairfield Oil Company | 4,110 ft |
| Phillips 3 | 12-025-00344 | Active | Oil | Clay, IL | Fairfield Oil Company | 3,662 ft |
| Keiser 4 | 12-191-04259 | Plugged & abandoned | Oil | Wayne, IL | Fairfield Oil Company | 3,384 ft |
| Shelton 7 | 12-191-30193 | Orphaned | Oil | Wayne, IL | Fairfield Oil Company | 3,360 ft |
| Shelton 8 | 12-191-30213 | Orphaned | Oil | Wayne, IL | Fairfield Oil Company | 3,360 ft |
| Vaughn R S 2 | 12-191-31635 | Other status | Oil | Wayne, IL | Fairfield Oil Company | 3,351 ft |
Deepest first where depth is published. See all 30 wells →
Frequently asked questions
How many wells does Fairfield Oil operate?
Fairfield Oil is the operator of record for 30 catalogued oil & gas wells, with the largest concentration in Illinois (30). Only wells in states WellCensus has ingested are counted.
How many of Fairfield Oil's wells are still active?
9 of Fairfield Oil's catalogued wells are active; 15 are plugged & abandoned and 3 are flagged as orphaned.
In which states does Fairfield Oil operate wells?
Fairfield Oil is the operator of record for wells in Illinois (30).
Does Fairfield Oil operate mostly oil or gas wells?
19 of Fairfield Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Fairfield Oil's deepest well?
Among wells with a published depth, Hooper 1 in Wayne, IL is the deepest at 4,234 ft.
Where Fairfield 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, “Fairfield Oil — well portfolio”, https://wellcensus.com/operators/fairfield-oil-67205 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).