Chelin
Operator of record for 78 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Chelin is the operator of record for 78 catalogued U.S. oil & gas wells in 1 state. 28 (36%) are active, 4 (5%) plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Montana, with 78 wells (100% of its portfolio).
Wells operated
78
Active
28
Plugged
4
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Montana | 78 |
Well mix
- Oil wells
- 70
- Gas wells
- 8
- Shut-in
- 45
- Active share
- 36%
Is this your company?
Claim Chelin to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Chelin operate?
Chelin's catalogued wells are spread across 1 state: Montana (78). Its 78 Montana wells are 0.2% 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 Chelin’s wells are active, plugged or orphaned?
36% of Chelin's catalogued wells are active, 7 percentage points above the national share of 29%. 5% are plugged & abandoned, against 47% nationally. 45 wells (58%) are shut-in — unplugged but idle. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Chelin operate?
By product class, 70 (90%) are oil wells and 8 (10%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is #1 Simmes Ranch 21-13 in Toole, MT at 3,405 ft. The wells listed below sit in Toole (MT), Glacier (MT) and Liberty (MT).
Notable wells operated by Chelin
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| #1 Simmes Ranch 21-13 | 25-101-24281 | Shut-in | Oil | Toole, MT | Chelin LLC | 3,405 ft |
| Federal 1-11 | 25-035-21344 | Shut-in | Oil | Glacier, MT | Chelin LLC | 2,731 ft |
| Crowley #2 | 25-035-06891 | Shut-in | Oil | Glacier, MT | Chelin LLC | 2,696 ft |
| Blair 22-23 | 25-051-21307 | Active | Oil | Liberty, MT | Chelin LLC | 2,660 ft |
| Texaco 9 | 25-101-07066 | Shut-in | Oil | Toole, MT | Chelin LLC | 2,143 ft |
| Federal 11 | 25-101-07067 | Shut-in | Oil | Toole, MT | Chelin LLC | 2,116 ft |
| Skelly 15 | 25-101-22920 | Shut-in | Oil | Toole, MT | Chelin LLC | 2,098 ft |
| Texaco 12 | 25-101-22903 | Active | Oil | Toole, MT | Chelin LLC | 2,095 ft |
| Skelly 12 | 25-101-07041 | Shut-in | Oil | Toole, MT | Chelin LLC | 2,090 ft |
| Texaco 7 | 25-101-07040 | Shut-in | Oil | Toole, MT | Chelin LLC | 2,065 ft |
| Skelly 14 | 25-101-06998 | Active | Oil | Toole, MT | Chelin LLC | 2,050 ft |
| Skelly 13 | 25-101-07011 | Active | Oil | Toole, MT | Chelin LLC | 2,015 ft |
Deepest first where depth is published. See all 78 wells →
Frequently asked questions
How many wells does Chelin operate?
Chelin is the operator of record for 78 catalogued oil & gas wells, with the largest concentration in Montana (78). Only wells in states WellCensus has ingested are counted.
How many of Chelin's wells are still active?
28 of Chelin's catalogued wells are active; 4 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Chelin operate wells?
Chelin is the operator of record for wells in Montana (78).
Does Chelin operate mostly oil or gas wells?
70 of Chelin's catalogued wells are oil wells and 8 are gas wells; the rest are injection, service or unclassified wells.
What is Chelin's deepest well?
Among wells with a published depth, #1 Simmes Ranch 21-13 in Toole, MT is the deepest at 3,405 ft.
Where Chelin'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, “Chelin — well portfolio”, https://wellcensus.com/operators/chelin-70743 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).