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WellCensus

Gentry Oil

Operator of record for 23 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Gentry Oil is the operator of record for 23 catalogued U.S. oil & gas wells in 1 state. 5 (22%) are active, 14 (61%) plugged & abandoned. Its largest concentration is in Illinois, with 23 wells (100% of its portfolio).

Wells operated

23

Active

5

Plugged

14

Orphaned

0

Portfolio by state

StateWells
Illinois23

Well mix

Oil wells
9
Gas wells
0
Shut-in
0
Active share
22%

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Where does Gentry Oil operate?

Gentry Oil's catalogued wells are spread across 1 state: Illinois (23). Its 23 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 Gentry Oil’s wells are active, plugged or orphaned?

22% of Gentry Oil's catalogued wells are active, 7 percentage points below the national share of 29%. 61% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Gentry Oil operate?

By product class, 9 (39%) 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 Four R's Trust 18278 2 in Marion, IL at 4,204 ft.

Notable wells operated by Gentry Oil

Wells operated by Gentry Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Four R's Trust 18278 212-121-28399Plugged & abandonedOther typeMarion, ILGentry Oil4,204 ft
Quaranta 212-121-27387Plugged & abandonedOilMarion, ILGentry Oil3,760 ft
Four R's Trust 18278 112-121-28390Plugged & abandonedOther typeMarion, ILGentry Oil3,750 ft
Brasel 112-121-27792Plugged & abandonedOther typeMarion, ILGentry Oil3,574 ft
Blomberg Bros. 112-121-28200Plugged & abandonedOther typeMarion, ILGentry Oil2,600 ft
Quaranta 112-121-27117Plugged & abandonedOther typeMarion, ILGentry Oil2,375 ft
Blomberg 212-121-27776Plugged & abandonedOther typeMarion, ILGentry Oil2,330 ft
Brasel-Geiler 112-121-27036Plugged & abandonedOilMarion, ILGentry Oil2,301 ft
Brasel-Geiler 212-121-27108ActiveOilMarion, ILGentry Oil2,300 ft
Potter-Gentry 212-121-28232Plugged & abandonedOther typeMarion, ILGentry Oil2,300 ft
Gentry, R.B. 112-121-26676Plugged & abandonedOilMarion, ILGentry Oil2,274 ft
O'Dell 112-121-27492Plugged & abandonedOther typeMarion, ILGentry Oil2,253 ft

Deepest first where depth is published. See all 23 wells →

Frequently asked questions

How many wells does Gentry Oil operate?

Gentry Oil is the operator of record for 23 catalogued oil & gas wells, with the largest concentration in Illinois (23). Only wells in states WellCensus has ingested are counted.

How many of Gentry Oil's wells are still active?

5 of Gentry Oil's catalogued wells are active; 14 are plugged & abandoned.

In which states does Gentry Oil operate wells?

Gentry Oil is the operator of record for wells in Illinois (23).

Does Gentry Oil operate mostly oil or gas wells?

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

What is Gentry Oil's deepest well?

Among wells with a published depth, Four R's Trust 18278 2 in Marion, IL is the deepest at 4,204 ft.

Where Gentry 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, “Gentry Oil — well portfolio”, https://wellcensus.com/operators/gentry-oil-66963 (data as of October 10, 2026).

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