Oil & gas wells in Custer County, MT
228 catalogued wells in Custer County, Montana, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Custer County, Montana has 228 catalogued oil & gas wells: 0 active (0%), 217 plugged & abandoned (95%) and 0 documented orphans. It ranks 29th of the 41 Montana counties WellCensus profiles by well count and holds 0.5% of the state's 42,011 catalogued wells.
Catalogued wells
228
Active
0
Plugged
217
Documented orphans
0
What is the status of oil and gas wells in Custer County?
0% of Custer County's wells are active, 23 percentage points below the Montana share of 23%. 95% are plugged & abandoned, against 60% statewide and 47% nationally. 5 wells (2%) are shut-in — unplugged but idle. No documented orphaned wells are recorded in Custer County; Montana as a whole has 272. The remaining 6 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Custer County?
By product class, 0 of the county's wells (0%) are oil wells, 19 (8%) gas wells and 0 (0%) injection wells. Statewide the oil share is 30% and the gas share 24%. The deepest total depth published for a Custer County well is 10,018 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 Custer County compare with other Montana counties?
Custer County has the 29th-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.
Who operates wells in Custer County?
86 distinct operators of record are linked to wells in Custer 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.
Wells in Custer County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Miles S-26-1 | 25-017-05000 | Plugged & abandoned | Other type | Gary Energy Corporation |
| Nprr 25-1 | 25-017-05001 | Plugged & abandoned | Other type | Gary Energy Corporation |
| Govt. 1-C | 25-017-05002 | Plugged & abandoned | Other type | Mountain States Drilling Co. |
| Nprr 99-4 | 25-017-05003 | Plugged & abandoned | Gas | El Paso Natural Gas Company |
| Govt-Greer 1-A | 25-017-05004 | Plugged & abandoned | Other type | Mountain States Drilling Co. |
| Govt 1-Ax | 25-017-05005 | Plugged & abandoned | Other type | Mountain States Drilling Co. |
| Green 1 | 25-017-05006 | Plugged & abandoned | Other type | El Paso Natural Gas Company |
| Mcintosh 1 | 25-017-05007 | Plugged & abandoned | Other type | Murphy Exploration and Production Co. |
| Nprr 1-3221 | 25-017-05008 | Other status | Other type | Mule Creek Oil |
| Liscom Creek # 1 | 25-017-05011 | Plugged & abandoned | Other type | Wheatley, Thomas F. |
| Federal 8-1 | 25-017-05015 | Plugged & abandoned | Other type | Gary Energy Corporation |
| Np 2 | 25-017-05016 | Plugged & abandoned | Other type | Wheatley, Thomas F. |
| Headwater 1 | 25-017-05017 | Plugged & abandoned | Other type | British American |
| State 1 | 25-017-05018 | Plugged & abandoned | Other type | Pure Oil |
| Montana Federal 44-34 | 25-017-05019 | Shut-in | Gas | Montana Oil & Gas, LLC |
| State 36-1 | 25-017-05020 | Plugged & abandoned | Other type | Gary, Samuel, Oil Producer |
| Mcintosh #1 | 25-017-05021 | Plugged & abandoned | Other type | El Paso Natural Gas Company |
| Govt. 1-B | 25-017-05022 | Plugged & abandoned | Other type | Mountain States Drilling Co. |
| Govt. 2 | 25-017-05023 | Plugged & abandoned | Other type | Wheatley Etal |
| Pope 1 | 25-017-05024 | Plugged & abandoned | Other type | Allardyce, R. L. |
| Govt. 09467 #1 | 25-017-05025 | Plugged & abandoned | Other type | Garfield & Pasternak |
| McIntosh 1 | 25-017-05026 | Plugged & abandoned | Other type | El Paso Natural Gas Company |
| Nprr 1 | 25-017-05027 | Plugged & abandoned | Other type | Ozark Corp. |
| State 1 | 25-017-05028 | Plugged & abandoned | Other type | Jordan, R.M. |
| Federal Nye 1 | 25-017-05029 | Plugged & abandoned | Other type | Davis Oil Company |
A sample of the county’s wells — every catalogued well has its own page. Browse all 228 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 Custer County, MT?
Custer County, Montana has 228 catalogued oil & gas wells: 0 active, 217 plugged and 0 documented orphans.
How many orphaned wells are in Custer County?
No documented orphaned wells are currently recorded in Custer County, Montana.
What share of wells in Custer County are plugged?
217 of Custer County's 228 catalogued wells (95%) 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); Custer County ranks 29th with 228.
How many companies operate wells in Custer County?
86 distinct operators of record are linked to catalogued wells in Custer 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 Custer County, Montana”, https://wellcensus.com/wells/montana/custer (data as of October 10, 2026).