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WellCensus

Simpson Oil

Operator of record for 3 catalogued wells across 2 states. Every well below links to its full registry page.

Filed as: SIMPSON OIL, INC · Simpson Oil, Inc.

At a glance

Simpson Oil is the operator of record for 3 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 2 (67%) are plugged & abandoned. Its largest concentration is in Kentucky, with 2 wells (67% of its portfolio).

Wells operated

3

Active

0

Plugged

2

Orphaned

0

Portfolio by state

StateWells
Kentucky2
Illinois1

Well mix

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

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Where does Simpson Oil operate?

Simpson Oil's catalogued wells are spread across 2 states: Kentucky (2) and Illinois (1). Its 2 Kentucky wells are 0.0% of the 201,022 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 Simpson Oil’s wells are active, plugged or orphaned?

0% of Simpson Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 67% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Simpson Oil 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 Head, Mollie Heirs 2 in Lee, KY at 1,197 ft. The wells listed below sit in Lee (KY) and Crawford (IL). 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 Simpson Oil

Wells operated by Simpson Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Head, Mollie Heirs 216-129-04742Plugged & abandonedOther typeLee, KYSimpson Oil, Inc1,197 ft
Head, Mollie Heirs 116-129-04743Plugged & abandonedOther typeLee, KYSimpson Oil, Inc1,192 ft
Osborn 312-033-30173Other statusOther typeCrawford, ILSimpson Oil, Inc.—

Deepest first where depth is published. See all 3 wells →

Frequently asked questions

How many wells does Simpson Oil operate?

Simpson Oil is the operator of record for 3 catalogued oil & gas wells, with the largest concentration in Kentucky (2). Only wells in states WellCensus has ingested are counted.

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

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

In which states does Simpson Oil operate wells?

Simpson Oil is the operator of record for wells in Kentucky (2) and Illinois (1).

Does Simpson Oil operate mostly oil or gas wells?

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

What is Simpson Oil's deepest well?

Among wells with a published depth, Head, Mollie Heirs 2 in Lee, KY is the deepest at 1,197 ft.

Where Simpson 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, “Simpson Oil — well portfolio”, https://wellcensus.com/operators/simpson-oil-66370 (data as of October 10, 2026).

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