Duffy
Operator of record for 12 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Duffy is the operator of record for 12 catalogued U.S. oil & gas wells in 1 state. 1 (8%) are active, 1 (8%) plugged & abandoned. Its largest concentration is in Illinois, with 12 wells (100% of its portfolio).
Wells operated
12
Active
1
Plugged
1
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 12 |
Well mix
- Oil wells
- 1
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 8%
Is this your company?
Claim Duffy to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Duffy operate?
Duffy's catalogued wells are spread across 1 state: Illinois (12). Its 12 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 Duffy’s wells are active, plugged or orphaned?
8% of Duffy's catalogued wells are active, 21 percentage points below the national share of 29%. 8% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Duffy operate?
By product class, 1 (8%) are oil wells and 1 (8%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Nuttall, E. B. 1 in Crawford, IL at 935 ft.
Notable wells operated by Duffy
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Nuttall, E. B. 1 | 12-033-09576 | Plugged & abandoned | Oil | Crawford, IL | Duffy | 935 ft |
| Conover, J.J. 1 | 12-033-10569 | Other status | Other type | Crawford, IL | Duffy | 927 ft |
| Conover, J.J. 2 | 12-033-10570 | Other status | Other type | Crawford, IL | Duffy | 927 ft |
| Weger, C. 1 | 12-033-10594 | Other status | Other type | Crawford, IL | Duffy | 926 ft |
| Weger, J.P. 4 | 12-033-10843 | Other status | Other type | Crawford, IL | Duffy | 926 ft |
| Conover, J.J. 4 | 12-033-10572 | Active | Gas | Crawford, IL | Duffy | 924 ft |
| Weger, J.P. 3 | 12-033-10842 | Other status | Other type | Crawford, IL | Duffy | 921 ft |
| Weger, J.P. 2 | 12-033-10841 | Other status | Other type | Crawford, IL | Duffy | 918 ft |
| Nuttall, E.B. 2 | 12-033-10579 | Other status | Other type | Crawford, IL | Duffy | 918 ft |
| Weger, J.P. 1 | 12-033-10840 | Other status | Other type | Crawford, IL | Duffy | 909 ft |
| Conover, J.J. 3 | 12-033-10571 | Other status | Other type | Crawford, IL | Duffy | 908 ft |
| Conover, J.J. 5 | 12-033-10573 | Other status | Other type | Crawford, IL | Duffy | 907 ft |
Deepest first where depth is published. See all 12 wells →
Frequently asked questions
How many wells does Duffy operate?
Duffy is the operator of record for 12 catalogued oil & gas wells, with the largest concentration in Illinois (12). Only wells in states WellCensus has ingested are counted.
How many of Duffy's wells are still active?
1 of Duffy's catalogued wells are active; 1 are plugged & abandoned.
In which states does Duffy operate wells?
Duffy is the operator of record for wells in Illinois (12).
Does Duffy operate mostly oil or gas wells?
1 of Duffy's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Duffy's deepest well?
Among wells with a published depth, Nuttall, E. B. 1 in Crawford, IL is the deepest at 935 ft.
Where Duffy'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, “Duffy — well portfolio”, https://wellcensus.com/operators/duffy-96158 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).