Skip to content
WellCensus

Oil & gas wells in Fergus County, MT

396 catalogued wells in Fergus County, Montana, from the state regulator registry and the federal orphaned-well inventory.

Dataset updated . Derived from public data sources.

At a glance

Fergus County, Montana has 396 catalogued oil & gas wells: 3 active (0.8%), 334 plugged & abandoned (84%) and 10 documented orphans. It ranks 23rd of the 41 Montana counties WellCensus profiles by well count and holds 0.9% of the state's 42,011 catalogued wells.

Catalogued wells

396

Active

3

Plugged

334

Documented orphans

10

What is the status of oil and gas wells in Fergus County?

0.8% of Fergus County's wells are active, 22 percentage points below the Montana share of 23%. 84% are plugged & abandoned, against 60% statewide and 47% nationally. 4 wells (1%) are shut-in — unplugged but idle. 10 wells (3%) are documented orphans with no operator able to plug them, compared with 0.6% across Montana and 4% nationally. The remaining 45 carry status codes outside those classes, such as permitted or cancelled locations.

What kinds of wells are in Fergus County?

By product class, 2 of the county's wells (0.5%) are oil wells, 34 (9%) gas wells and 2 (0.5%) injection wells. Statewide the oil share is 30% and the gas share 24%. The deepest total depth published for a Fergus County well is 6,468 ft, against 31,810 ft for Montana as a whole. 100% of the county's wells carry coordinates and appear on the map.

How does Fergus County compare with other Montana counties?

Fergus County has the 23rd-most catalogued wells of the 41 Montana counties with at least 25. The median Montana county on WellCensus has 457 wells. The largest, Toole County, has 7,830. By documented orphans it ranks 11th in Montana.

Who operates wells in Fergus County?

166 distinct operators of record are linked to wells in Fergus County. 100% of the county's wells carry a link to a canonical operator profile; the rest list no operator or a name not yet resolved. Each well's page names its operator where the state publishes one.

Oil & gas wells in Fergus County, MT
WellAPI # / state IDStatusTypeOperator
Norheim 325-027-05158Other statusGasEmmons Etal
Arntzen 28-125-027-21240OrphanedGas—
Nelson 125-027-05000Other statusOther typeB & L Drlg Co
225-027-05001Other statusOther typeMcElwain Dev Co
Alvin Abbott 125-027-05002Plugged & abandonedOther typeConoco Inc.
Alvin Abbo<>1-A25-027-05003Plugged & abandonedOther typeMule Creek Oil
Govt 52-2425-027-05004Plugged & abandonedOther typeHancock Oil & Gas
N Bar Ranch 225-027-05005Plugged & abandonedOther typeMontalban Oil Etal
Bastian 125-027-05006Plugged & abandonedOther typeBurks W E
N Bar Ranch 125-027-05007Plugged & abandonedOther typeB & L Drlg Co
N-Bar 225-027-05008Plugged & abandonedOther typeB & L Drlg Co
Fritz Harris 125-027-05009Plugged & abandonedOther typeB & L Drlg Co
Schaff 1-A25-027-05011Other statusOther typeMcKenna, J.E.
State 36-125-027-05012Plugged & abandonedOther typeHancock Oil & Gas
N-Bar Ranch 1-A25-027-05013Plugged & abandonedOther typeNorthern Natural Gas Producing Co.
N-Bar Ranch 125-027-05014Plugged & abandonedOther typeMontalban Oil Etal
Hughes 2-A25-027-05015Other statusOther typeTaylor, Ike
Hughes 225-027-05016Plugged & abandonedOther typeTaylor, Ike
N-Bar Ranch 125-027-05017Plugged & abandonedOther typeJackson, Miles
Ruesch 125-027-05019Plugged & abandonedOther typeMid-Northern Oil Co.
Leslie Finkb<>125-027-05020Plugged & abandonedOther typeSpindletop Petroleum
Wildin 125-027-05021Plugged & abandonedOther typeB & L Drlg Co
Wildin 125-027-05023Plugged & abandonedOther typeAmerada Hess Corporation
John Wildin 225-027-05024Plugged & abandonedOther typeSpindletop Petroleum
Hughes 325-027-05025Plugged & abandonedOther typeTaylor, Ike

A sample of the county’s wells — every catalogued well has its own page. Browse all 396 in search → (filter by operator, status and type, then export), or find a specific well on the live map.

Frequently asked questions

How many oil and gas wells are in Fergus County, MT?

Fergus County, Montana has 396 catalogued oil & gas wells: 3 active, 334 plugged and 10 documented orphans.

How many orphaned wells are in Fergus County?

10 wells in Fergus County, Montana are documented orphans — unplugged with no solvent operator of record, the 11th-highest count among Montana counties.

What share of wells in Fergus County are plugged?

334 of Fergus County's 396 catalogued wells (84%) are plugged & abandoned, compared with 60% across Montana.

Which Montana county has the most oil and gas wells?

Toole County has the most catalogued wells of any Montana county on WellCensus (7,830); Fergus County ranks 23rd with 396.

How many companies operate wells in Fergus County?

166 distinct operators of record are linked to catalogued wells in Fergus County, Montana.

Nearby in the Montana rankings

About this data

Source: Montana Board of Oil & Gas Conservation well registry, plus the USGS United States Documented Orphaned Well Database (2026, doi 10.5066/P13FHBYG), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: WellCensus, “Oil & gas wells in Fergus County, Montana”, https://wellcensus.com/wells/montana/fergus (data as of October 10, 2026).