Oil & gas wells in Musselshell County, MT
1,386 catalogued wells in Musselshell County, Montana, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Musselshell County, Montana has 1,386 catalogued oil & gas wells: 57 active (4%), 1,185 plugged & abandoned (85%) and 12 documented orphans. It ranks 10th of the 41 Montana counties WellCensus profiles by well count and holds 3% of the state's 42,011 catalogued wells.
Catalogued wells
1,386
Active
57
Plugged
1,185
Documented orphans
12
What is the status of oil and gas wells in Musselshell County?
4% of Musselshell County's wells are active, 19 percentage points below the Montana share of 23%. 85% are plugged & abandoned, against 60% statewide and 47% nationally. 69 wells (5%) are shut-in — unplugged but idle. 12 wells (0.9%) are documented orphans with no operator able to plug them, compared with 0.6% across Montana and 4% nationally. The remaining 63 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Musselshell County?
By product class, 360 of the county's wells (26%) are oil wells, 3 (0.2%) gas wells and 79 (6%) injection wells. Statewide the oil share is 30% and the gas share 24%. The deepest total depth published for a Musselshell County well is 10,688 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 Musselshell County compare with other Montana counties?
Musselshell County has the 10th-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 8th in Montana.
Who operates wells in Musselshell County?
344 distinct operators of record are linked to wells in Musselshell 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 Musselshell County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Butts 4 (5-4) | 25-065-05262 | Other status | Oil | Kelly Oil and Gas LLC |
| Butts 5-3 (3) | 25-065-05270 | Other status | Oil | Kelly Oil and Gas LLC |
| Butts 5-1 (1) | 25-065-05275 | Other status | Oil | Kelly Oil and Gas LLC |
| State E-1 (4-1) | 25-065-05285 | Other status | Oil | Kelly Oil and Gas LLC |
| State 2-2 (F-2) | 25-065-05286 | Other status | Oil | Kelly Oil and Gas LLC |
| State 1 | 25-065-05443 | Other status | Injection | Kelly Oil and Gas LLC |
| Shelhamer A-4 | 25-065-05460 | Other status | Oil | Kelly Oil and Gas LLC |
| R. Shelhamer 1A | 25-065-05478 | Other status | Injection | Kelly Oil and Gas LLC |
| Butts 5-5 (5) | 25-065-05585 | Other status | Oil | Kelly Oil and Gas LLC |
| Smith M #3 | 25-065-05592 | Other status | Oil | Kelly Oil and Gas LLC |
| Wsw #1 | 25-065-21073 | Other status | Other type | Kelly Oil and Gas LLC |
| Stensvad 2X-25 | 25-065-21376 | Other status | Oil | Kelly Oil and Gas LLC |
| Dybvik KV 1 | 25-065-21627 | Other status | Oil | Kelly Oil and Gas LLC |
| Little Montana 1 | 25-065-21879 | Other status | Oil | UnionTown Energy Montana LLC |
| Dexter 7-1 | 25-065-21880 | Other status | Oil | Stealth Energy USA, Inc. |
| Sam 14-1 | 25-065-21882 | Other status | Oil | Stealth Energy USA, Inc. |
| State F-41-36 | 25-065-05000 | Plugged & abandoned | Other type | Mobil Oil Corp. |
| Np 7 | 25-065-05001 | Plugged & abandoned | Oil | Republic Natural Gas Co. |
| Nelson 1 | 25-065-05002 | Plugged & abandoned | Other type | Cities Service Oil Co. |
| Manhattan Oil Co. 1 | 25-065-05003 | Plugged & abandoned | Other type | Manhattan Oil Co |
| Northern Pac<>1 | 25-065-05004 | Plugged & abandoned | Other type | Amerada Hess Corporation |
| N J Raths 1 | 25-065-05005 | Plugged & abandoned | Other type | Texaco Exploration and Production Inc. |
| Ethel Chandl<>1 | 25-065-05006 | Plugged & abandoned | Other type | States Oil |
| U P R R 1 | 25-065-05007 | Plugged & abandoned | Other type | Texas Pacific Coal & Oil Co. |
| Fred Maart 1 | 25-065-05009 | Plugged & abandoned | Other type | Curlew Oil Company |
A sample of the county’s wells — every catalogued well has its own page. Browse all 1,386 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 Musselshell County, MT?
Musselshell County, Montana has 1,386 catalogued oil & gas wells: 57 active, 1,185 plugged and 12 documented orphans.
How many orphaned wells are in Musselshell County?
12 wells in Musselshell County, Montana are documented orphans — unplugged with no solvent operator of record, the 8th-highest count among Montana counties.
What share of wells in Musselshell County are plugged?
1,185 of Musselshell County's 1,386 catalogued wells (85%) 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); Musselshell County ranks 10th with 1,386.
How many companies operate wells in Musselshell County?
344 distinct operators of record are linked to catalogued wells in Musselshell 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 Musselshell County, Montana”, https://wellcensus.com/wells/montana/musselshell (data as of October 10, 2026).