Sdoco
Operator of record for 34 catalogued wells across 2 states. Every well below links to its full registry page.
At a glance
Sdoco is the operator of record for 34 catalogued U.S. oil & gas wells in 2 states. 8 (24%) are active, 15 (44%) plugged & abandoned. Its largest concentration is in Montana, with 24 wells (71% of its portfolio).
Wells operated
34
Active
8
Plugged
15
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Montana | 24 |
| Kansas | 10 |
Well mix
- Oil wells
- 25
- Gas wells
- 0
- Shut-in
- 10
- Active share
- 24%
Is this your company?
Claim Sdoco to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Sdoco operate?
Sdoco's catalogued wells are spread across 2 states: Montana (24) and Kansas (10). Its 24 Montana wells are 0.1% 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 Sdoco’s wells are active, plugged or orphaned?
24% of Sdoco's catalogued wells are active, 5 percentage points below the national share of 29%. 44% are plugged & abandoned, against 47% nationally. 10 wells (29%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Sdoco operate?
By product class, 25 (74%) 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 Clubb 1 in Mccone, MT at 7,515 ft. The wells listed below sit in Mccone (MT), Wichita (KS) and Rosebud (MT).
Notable wells operated by Sdoco
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Clubb 1 | 25-055-21100 | Shut-in | Oil | Mccone, MT | Sdoco, LLC | 7,515 ft |
| Lundblad 1 SWD | 25-055-21107 | Active | Injection | Mccone, MT | Sdoco, LLC | 6,460 ft |
| Burlington A-1 | 25-055-21103 | Shut-in | Oil | Mccone, MT | Sdoco, LLC | 6,438 ft |
| Burlington B-1 | 25-055-21106 | Shut-in | Oil | Mccone, MT | Sdoco, LLC | 6,390 ft |
| Burlington B-2 | 25-055-21111 | Shut-in | Oil | Mccone, MT | Sdoco, LLC | 6,388 ft |
| Bn 11-15 | 25-055-21070 | Shut-in | Oil | Mccone, MT | Sdoco, LLC | 6,300 ft |
| Rees Ranch 7-19 | 15-203-20191 | Plugged & abandoned | Oil | Wichita, KS | Sdoco, LLC | 5,265 ft |
| Rees Ranch 6-19 | 15-203-20223 | Plugged & abandoned | Oil | Wichita, KS | Sdoco, LLC | 5,252 ft |
| Rees Ranch 4-19 | 15-203-20219 | Plugged & abandoned | Other type | Wichita, KS | Sdoco, LLC | 5,250 ft |
| Elinor Sawyer 4 | 25-087-21479 | Active | Oil | Rosebud, MT | Sdoco, LLC | 5,147 ft |
| Rees Ranch 2-19 | 15-203-20203 | Plugged & abandoned | Oil | Wichita, KS | Sdoco, LLC | 5,130 ft |
| Nason Kincheloe 3 | 25-087-21433 | Shut-in | Oil | Rosebud, MT | Sdoco, LLC | 5,125 ft |
Deepest first where depth is published. See all 34 wells →
Frequently asked questions
How many wells does Sdoco operate?
Sdoco is the operator of record for 34 catalogued oil & gas wells, with the largest concentration in Montana (24). Only wells in states WellCensus has ingested are counted.
How many of Sdoco's wells are still active?
8 of Sdoco's catalogued wells are active; 15 are plugged & abandoned.
In which states does Sdoco operate wells?
Sdoco is the operator of record for wells in Montana (24) and Kansas (10).
Does Sdoco operate mostly oil or gas wells?
25 of Sdoco's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Sdoco's deepest well?
Among wells with a published depth, Clubb 1 in Mccone, MT is the deepest at 7,515 ft.
Where Sdoco'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, “Sdoco — well portfolio”, https://wellcensus.com/operators/sdoco-106916 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).