Oil & gas wells in Carter County, MT
457 catalogued wells in Carter County, Montana, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Carter County, Montana has 457 catalogued oil & gas wells: 2 active (0.4%), 436 plugged & abandoned (95%) and 1 documented orphans. It ranks 21st of the 41 Montana counties WellCensus profiles by well count and holds 1% of the state's 42,011 catalogued wells.
Catalogued wells
457
Active
2
Plugged
436
Documented orphans
1
What is the status of oil and gas wells in Carter County?
0.4% of Carter County's wells are active, 23 percentage points below the Montana share of 23%. 95% are plugged & abandoned, against 60% statewide and 47% nationally. 8 wells (2%) are shut-in — unplugged but idle. 1 wells (0.2%) are documented orphans with no operator able to plug them, compared with 0.6% across Montana and 4% nationally. The remaining 10 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Carter County?
By product class, 15 of the county's wells (3%) are oil wells, 51 (11%) gas wells and 3 (0.7%) injection wells. Statewide the oil share is 30% and the gas share 24%. The deepest total depth published for a Carter County well is 10,300 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 Carter County compare with other Montana counties?
Carter County has the 21st-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 26th in Montana.
Who operates wells in Carter County?
148 distinct operators of record are linked to wells in Carter 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 Carter County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| Federal 1 | 25-011-05000 | Plugged & abandoned | Other type | Bel Oil - Hudson |
| National Lead 1 | 25-011-05001 | Plugged & abandoned | Other type | Hudson, R.E. |
| Federal 1 | 25-011-05002 | Plugged & abandoned | Other type | Northern Ordinance, Inc. |
| Federal 1 | 25-011-05003 | Plugged & abandoned | Other type | Hudson, R.E. |
| Federal 1 | 25-011-05004 | Plugged & abandoned | Other type | Union Oil Company Of California |
| Federal 1 | 25-011-05005 | Plugged & abandoned | Other type | Union Oil Company Of California |
| Federal 1 | 25-011-05006 | Plugged & abandoned | Other type | Tenneco Oil Company |
| Federal 1 | 25-011-05007 | Plugged & abandoned | Other type | Dakota Montana Oil Co. |
| Erickson 12-19 | 25-011-05008 | Other status | Other type | Signal Drilling & Expl. Co. Inc. |
| Federal 1 | 25-011-05009 | Plugged & abandoned | Other type | Conoco Inc. |
| Core Hole 1 | 25-011-05010 | Plugged & abandoned | Other type | Gulf Oil Corporation |
| Tri State 1 | 25-011-05012 | Plugged & abandoned | Other type | Frantz Corporation |
| Federal 1 | 25-011-05013 | Plugged & abandoned | Other type | Davis Oil Company |
| Dickerson 1 | 25-011-05014 | Plugged & abandoned | Other type | Dickerson, Pete |
| Federal 1 | 25-011-05015 | Plugged & abandoned | Gas | Delhi Oil |
| Core Hole B-5 | 25-011-05016 | Plugged & abandoned | Other type | Amerada Hess Corporation |
| Morgan 1 | 25-011-05017 | Plugged & abandoned | Other type | Roche L W |
| Core Hole 2 | 25-011-05018 | Plugged & abandoned | Other type | Gulf Oil Corporation |
| Lang-Govt 1 | 25-011-05019 | Plugged & abandoned | Other type | Farmers Union Central Exchange, Inc. |
| C Chadbourne 1 | 25-011-05020 | Plugged & abandoned | Other type | Atlantic Richfield Company |
| Core Hole B-6 | 25-011-05021 | Plugged & abandoned | Other type | Amerada Hess Corporation |
| Mcdowell 1 | 25-011-05022 | Plugged & abandoned | Other type | Jackson, Miles |
| Govt B 1 | 25-011-05023 | Plugged & abandoned | Other type | Hunt Oil Company |
| Dinstel 1 | 25-011-05024 | Plugged & abandoned | Other type | Davis Oil Company |
| Norton-Gov't. 2 | 25-011-05025 | Plugged & abandoned | Other type | Hunt Oil Company |
A sample of the county’s wells — every catalogued well has its own page. Browse all 457 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 Carter County, MT?
Carter County, Montana has 457 catalogued oil & gas wells: 2 active, 436 plugged and 1 documented orphans.
How many orphaned wells are in Carter County?
1 wells in Carter County, Montana are documented orphans — unplugged with no solvent operator of record, the 26th-highest count among Montana counties.
What share of wells in Carter County are plugged?
436 of Carter County's 457 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); Carter County ranks 21st with 457.
How many companies operate wells in Carter County?
148 distinct operators of record are linked to catalogued wells in Carter 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 Carter County, Montana”, https://wellcensus.com/wells/montana/carter (data as of October 10, 2026).