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Mountain State Oil

Operator of record for 33 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Mountain State Oil is the operator of record for 33 catalogued U.S. oil & gas wells in 1 state. 31 (94%) are active, 1 (3%) plugged & abandoned. Its largest concentration is in West Virginia, with 33 wells (100% of its portfolio).

Wells operated

33

Active

31

Plugged

1

Orphaned

0

Portfolio by state

StateWells
West Virginia33

Well mix

Oil wells
0
Gas wells
31
Shut-in
0
Active share
94%

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Where does Mountain State Oil operate?

Mountain State Oil's catalogued wells are spread across 1 state: West Virginia (33). Its 33 West Virginia wells are 0.0% of the 118,569 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 Mountain State Oil’s wells are active, plugged or orphaned?

94% of Mountain State Oil's catalogued wells are active, 65 percentage points above the national share of 29%. 3% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Mountain State Oil operate?

By product class, 0 (0%) are oil wells and 31 (94%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Ritchie (WV) and Doddridge (WV).

Notable wells operated by Mountain State Oil

Wells operated by Mountain State Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Gilliland, William S. Gilliland 147-085-07715Other statusOther typeRitchie, WVMountain State Oil Company, L..L.C.—
Howard R & Judy D Mcdaniel Martin47-017-01908ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Jett, Clarence Jett 147-017-05168ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
U'Dell, Arthur U'Dell 247-017-05702ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Thompson, David M. Lyon 647-017-05215ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Hallworth, Albert O. Ashcraft 447-017-05294ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Edgell, Robert J. Johnson 147-017-05444ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Hallworth, Albert O. Ashcraft 347-017-05293ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Smith, Clarence Rager 547-017-05725ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Thompson, David M. Lyon 8-A47-017-05458ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Rager, Richard 447-017-05637ActiveGasDoddridge, WVMountain State Oil Company, L..L.C.—
Taylor, E. J. - Heirs 447-085-02395Plugged & abandonedOther typeRitchie, WVMountain State Oil Company, L..L.C.—

Deepest first where depth is published. See all 33 wells →

Frequently asked questions

How many wells does Mountain State Oil operate?

Mountain State Oil is the operator of record for 33 catalogued oil & gas wells, with the largest concentration in West Virginia (33). Only wells in states WellCensus has ingested are counted.

How many of Mountain State Oil's wells are still active?

31 of Mountain State Oil's catalogued wells are active; 1 are plugged & abandoned.

In which states does Mountain State Oil operate wells?

Mountain State Oil is the operator of record for wells in West Virginia (33).

Does Mountain State Oil operate mostly oil or gas wells?

0 of Mountain State Oil's catalogued wells are oil wells and 31 are gas wells; the rest are injection, service or unclassified wells.

Where Mountain State 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, “Mountain State Oil — well portfolio”, https://wellcensus.com/operators/mountain-state-oil-142427 (data as of October 10, 2026).

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