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WellCensus

Duncan Yingling Oil

Operator of record for 2 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Duncan Yingling Oil is the operator of record for 2 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 2 (100%) are plugged & abandoned. Its largest concentration is in Illinois, with 2 wells (100% of its portfolio).

Wells operated

2

Active

0

Plugged

2

Orphaned

0

Portfolio by state

StateWells
Illinois2

Well mix

Oil wells
2
Gas wells
0
Shut-in
0
Active share
0%

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Where does Duncan Yingling Oil operate?

Duncan Yingling Oil's catalogued wells are spread across 1 state: Illinois (2). Its 2 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 (location indexes) and in states without a registry ingest are not yet attributed to any operator.

How many of Duncan Yingling Oil’s wells are active, plugged or orphaned?

0% of Duncan Yingling Oil's catalogued wells are active, 30 percentage points below the national share of 30%. 100% are plugged & abandoned, against 48% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Duncan Yingling Oil operate?

By product class, 2 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 45% and 18%. The deepest of its wells with a published depth is Schmittler 1 in Edwards, IL at 3,206 ft. The wells listed below sit in Edwards (IL) and White (IL).

Notable wells operated by Duncan Yingling Oil

Wells operated by Duncan Yingling Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Schmittler 112-047-01864Plugged & abandonedOilEdwards, ILDuncan-Yingling Oil3,206 ft
Kershaw Gordon P 112-193-03707Plugged & abandonedOilWhite, ILDuncan-Yingling Oil3,097 ft

Deepest first where depth is published. See all 2 wells →

Frequently asked questions

How many wells does Duncan Yingling Oil operate?

Duncan Yingling Oil is the operator of record for 2 catalogued oil & gas wells, with the largest concentration in Illinois (2). Only wells in states WellCensus has ingested are counted.

How many of Duncan Yingling Oil's wells are still active?

0 of Duncan Yingling Oil's catalogued wells are active; 2 are plugged & abandoned.

In which states does Duncan Yingling Oil operate wells?

Duncan Yingling Oil is the operator of record for wells in Illinois (2).

Does Duncan Yingling Oil operate mostly oil or gas wells?

2 of Duncan Yingling Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.

What is Duncan Yingling Oil's deepest well?

Among wells with a published depth, Schmittler 1 in Edwards, IL is the deepest at 3,206 ft.

Where Duncan Yingling 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 28, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: WellCensus, “Duncan Yingling Oil — well portfolio”, https://wellcensus.com/operators/duncan-yingling-oil-97650 (data as of October 28, 2026).

Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).