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WellCensus

Lee Mar Oil

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

At a glance

Lee Mar 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
1
Gas wells
0
Shut-in
0
Active share
0%

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Where does Lee Mar Oil operate?

Lee Mar 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 and Texas (location indexes) and in states without a registry ingest are not yet attributed to any operator.

How many of Lee Mar Oil’s wells are active, plugged or orphaned?

0% of Lee Mar Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Lee Mar Oil operate?

By product class, 1 (50%) 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 T A Sanders 1 in Wayne, IL at 3,334 ft. The wells listed below sit in Wayne (IL) and Clay (IL).

Notable wells operated by Lee Mar Oil

Wells operated by Lee Mar Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
T A Sanders 112-191-08005Plugged & abandonedOilWayne, ILLee-Mar Oil Co.3,334 ft
Stanford, B. E. 112-025-04783Plugged & abandonedOther typeClay, ILLee-Mar Oil Co.3,136 ft

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

Frequently asked questions

How many wells does Lee Mar Oil operate?

Lee Mar 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 Lee Mar Oil's wells are still active?

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

In which states does Lee Mar Oil operate wells?

Lee Mar Oil is the operator of record for wells in Illinois (2).

Does Lee Mar Oil operate mostly oil or gas wells?

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

What is Lee Mar Oil's deepest well?

Among wells with a published depth, T A Sanders 1 in Wayne, IL is the deepest at 3,334 ft.

Where Lee Mar 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, “Lee Mar Oil — well portfolio”, https://wellcensus.com/operators/lee-mar-oil-93933 (data as of October 10, 2026).

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