Duncan Drilling
Operator of record for 5 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: DUNCAN DRILLING · Duncan Drilling Co.
At a glance
Duncan Drilling is the operator of record for 5 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 3 (60%) are plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Illinois, with 4 wells (80% of its portfolio).
Wells operated
5
Active
0
Plugged
3
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 4 |
| Kentucky | 1 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Duncan Drilling to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Duncan Drilling operate?
Duncan Drilling's catalogued wells are spread across 2 states: Illinois (4) and Kentucky (1). Its 4 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 Duncan Drilling’s wells are active, plugged or orphaned?
0% of Duncan Drilling's catalogued wells are active, 29 percentage points below the national share of 29%. 60% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Duncan Drilling operate?
By product class, 0 (0%) 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 Robertson, A.J. 1-A in Wayne, IL at 3,180 ft. The wells listed below sit in Wayne (IL), Sangamon (IL), Schuyler (IL) and Clinton (KY). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Duncan Drilling
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Robertson, A.J. 1-A | 12-191-01255 | Orphaned | Injection | Wayne, IL | Duncan Drilling Co. | 3,180 ft |
| Mattingly 1 | 12-167-01060 | Plugged & abandoned | Other type | Sangamon, IL | Duncan Drilling Co. | 1,693 ft |
| Avery 2 | 12-169-21149 | Plugged & abandoned | Other type | Schuyler, IL | Duncan Drilling Co. | 920 ft |
| Avery 1 | 12-169-21148 | Plugged & abandoned | Other type | Schuyler, IL | Duncan Drilling Co. | 602 ft |
| Sells, Noreen 1 | KGS record 3006056 | Other status | Other type | Clinton, KY | Duncan Drilling | — |
Deepest first where depth is published. See all 5 wells →
Frequently asked questions
How many wells does Duncan Drilling operate?
Duncan Drilling is the operator of record for 5 catalogued oil & gas wells, with the largest concentration in Illinois (4). Only wells in states WellCensus has ingested are counted.
How many of Duncan Drilling's wells are still active?
0 of Duncan Drilling's catalogued wells are active; 3 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Duncan Drilling operate wells?
Duncan Drilling is the operator of record for wells in Illinois (4) and Kentucky (1).
Does Duncan Drilling operate mostly oil or gas wells?
0 of Duncan Drilling's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Duncan Drilling's deepest well?
Among wells with a published depth, Robertson, A.J. 1-A in Wayne, IL is the deepest at 3,180 ft.
Where Duncan Drilling'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, “Duncan Drilling — well portfolio”, https://wellcensus.com/operators/duncan-drilling-67147 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).