Ellis
Operator of record for 9 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Ellis is the operator of record for 9 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 9 (100%) are plugged & abandoned. Its largest concentration is in Montana, with 9 wells (100% of its portfolio).
Wells operated
9
Active
0
Plugged
9
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Montana | 9 |
Well mix
- Oil wells
- 9
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Ellis operate?
Ellis's catalogued wells are spread across 1 state: Montana (9). Its 9 Montana wells are 0.0% of the 42,011 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 Ellis’s wells are active, plugged or orphaned?
0% of Ellis's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Ellis operate?
By product class, 9 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Federal 5 in Garfield, MT at 1,848 ft.
Notable wells operated by Ellis
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Federal 5 | 25-033-05025 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,848 ft |
| U.S. 038176 #9 | 25-033-05042 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,848 ft |
| Federal 1 | 25-033-05033 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,826 ft |
| U.S. 10 | 25-033-05040 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,820 ft |
| Nprr 3 | 25-033-05049 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,814 ft |
| Federal 3 | 25-033-05026 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,800 ft |
| Federal 7 | 25-033-05032 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,795 ft |
| Nprr 2 | 25-033-05045 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,794 ft |
| Federal 11 | 25-033-05039 | Plugged & abandoned | Oil | Garfield, MT | Ellis Co. | 1,790 ft |
Deepest first where depth is published. See all 9 wells →
Frequently asked questions
How many wells does Ellis operate?
Ellis is the operator of record for 9 catalogued oil & gas wells, with the largest concentration in Montana (9). Only wells in states WellCensus has ingested are counted.
How many of Ellis's wells are still active?
0 of Ellis's catalogued wells are active; 9 are plugged & abandoned.
In which states does Ellis operate wells?
Ellis is the operator of record for wells in Montana (9).
Does Ellis operate mostly oil or gas wells?
9 of Ellis's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Ellis's deepest well?
Among wells with a published depth, Federal 5 in Garfield, MT is the deepest at 1,848 ft.
Where Ellis'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, “Ellis — well portfolio”, https://wellcensus.com/operators/ellis-127180 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).