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WellCensus

Clark Fork Oil

Operator of record for 5 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Clark Fork Oil is the operator of record for 5 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 5 (100%) are plugged & abandoned. Its largest concentration is in Montana, with 5 wells (100% of its portfolio).

Wells operated

5

Active

0

Plugged

5

Orphaned

0

Portfolio by state

StateWells
Montana5

Well mix

Oil wells
0
Gas wells
1
Shut-in
0
Active share
0%

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Where does Clark Fork Oil operate?

Clark Fork Oil's catalogued wells are spread across 1 state: Montana (5). Its 5 Montana wells are 0.0% of the 42,011 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 Fork Oil’s wells are active, plugged or orphaned?

0% of Clark Fork 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 Clark Fork Oil operate?

By product class, 0 (0%) are oil wells and 1 (20%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is State 1 in Yellowstone, MT at 1,005 ft.

Notable wells operated by Clark Fork Oil

Wells operated by Clark Fork Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
State 125-111-21141Plugged & abandonedOther typeYellowstone, MTClark Fork Oil1,005 ft
Clark Fork 325-111-05047Plugged & abandonedOther typeYellowstone, MTClark Fork Oil908 ft
Well 125-111-05043Plugged & abandonedGasYellowstone, MTClark Fork Oil825 ft
Clark Fork 225-111-05042Plugged & abandonedOther typeYellowstone, MTClark Fork Oil400 ft
Clark Fork 425-111-05041Plugged & abandonedOther typeYellowstone, MTClark Fork Oil100 ft

Deepest first where depth is published. See all 5 wells →

Frequently asked questions

How many wells does Clark Fork Oil operate?

Clark Fork Oil is the operator of record for 5 catalogued oil & gas wells, with the largest concentration in Montana (5). Only wells in states WellCensus has ingested are counted.

How many of Clark Fork Oil's wells are still active?

0 of Clark Fork Oil's catalogued wells are active; 5 are plugged & abandoned.

In which states does Clark Fork Oil operate wells?

Clark Fork Oil is the operator of record for wells in Montana (5).

Does Clark Fork Oil operate mostly oil or gas wells?

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

What is Clark Fork Oil's deepest well?

Among wells with a published depth, State 1 in Yellowstone, MT is the deepest at 1,005 ft.

Where Clark Fork 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, “Clark Fork Oil — well portfolio”, https://wellcensus.com/operators/clark-fork-oil-130324 (data as of October 10, 2026).

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