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WellCensus

Clark Ob Etal

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

At a glance

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

Wells operated

1

Active

0

Plugged

1

Orphaned

0

Portfolio by state

StateWells
Illinois1

Well mix

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

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Where does Clark Ob Etal operate?

Clark Ob Etal's catalogued wells are spread across 1 state: Illinois (1). Its 1 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 Clark Ob Etal’s wells are active, plugged or orphaned?

0% of Clark Ob Etal'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 Clark Ob Etal 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 Cox Jas 1 in Pope, IL at 455 ft.

Notable wells operated by Clark Ob Etal

Wells operated by Clark Ob Etal
WellAPI # / state IDStatusTypeLocationOperatorDepth
Cox Jas 112-151-00036Plugged & abandonedOther typePope, ILClark O B Etal455 ft

Deepest first where depth is published. See all 1 wells →

Frequently asked questions

How many wells does Clark Ob Etal operate?

Clark Ob Etal is the operator of record for 1 catalogued oil & gas wells, with the largest concentration in Illinois (1). Only wells in states WellCensus has ingested are counted.

How many of Clark Ob Etal's wells are still active?

0 of Clark Ob Etal's catalogued wells are active; 1 are plugged & abandoned.

In which states does Clark Ob Etal operate wells?

Clark Ob Etal is the operator of record for wells in Illinois (1).

Does Clark Ob Etal operate mostly oil or gas wells?

0 of Clark Ob Etal's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.

What is Clark Ob Etal's deepest well?

Among wells with a published depth, Cox Jas 1 in Pope, IL is the deepest at 455 ft.

Where Clark Ob Etal'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, “Clark Ob Etal — well portfolio”, https://wellcensus.com/operators/clark-ob-etal-108217 (data as of October 10, 2026).

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