Toco
Operator of record for 139 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Toco is the operator of record for 139 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 139 (100%) are plugged & abandoned. Its largest concentration is in Wyoming, with 139 wells (100% of its portfolio).
Wells operated
139
Active
0
Plugged
139
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Wyoming | 139 |
Well mix
- Oil wells
- 105
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Toco to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Toco operate?
Toco's catalogued wells are spread across 1 state: Wyoming (139). Its 139 Wyoming wells are 0.1% of the 129,957 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 Toco’s wells are active, plugged or orphaned?
0% of Toco'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 Toco operate?
By product class, 105 (76%) 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 Grynberg 1 in Weston, WY at 8,359 ft. The wells listed below sit in Weston (WY) and Goshen (WY).
Notable wells operated by Toco
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Grynberg 1 | 49-045-21157 | Plugged & abandoned | Oil | Weston, WY | Toco Corporation | 8,359 ft |
| Unit Van Mark Fee W-1 | 49-015-20085 | Plugged & abandoned | Injection | Goshen, WY | Toco Corporation | 7,140 ft |
| Unit Van Mark Fee W-4 | 49-015-20108 | Plugged & abandoned | Injection | Goshen, WY | Toco Corporation | 7,085 ft |
| Unit Holenbrink Pat W-2 | 49-015-05046 | Plugged & abandoned | Injection | Goshen, WY | Toco Corporation | 7,050 ft |
| Unit Van Mark Fee 1 | 49-015-05042 | Plugged & abandoned | Injection | Goshen, WY | Toco Corporation | 7,026 ft |
| Unit Barr Patent 1 | 49-015-05051 | Plugged & abandoned | Injection | Goshen, WY | Toco Corporation | 7,010 ft |
| Unit Van Mark Fee W-5 | 49-015-20109 | Plugged & abandoned | Injection | Goshen, WY | Toco Corporation | 7,003 ft |
| Goodson A 2 | 49-045-05835 | Plugged & abandoned | Oil | Weston, WY | Toco Corporation | 6,441 ft |
| Goodson A 1 | 49-045-05846 | Plugged & abandoned | Oil | Weston, WY | Toco Corporation | 6,405 ft |
| Cotton Unit-Cotton 4 | 49-045-05866 | Plugged & abandoned | Oil | Weston, WY | Toco Corporation | 6,300 ft |
| Darlington 7 | 49-045-05792 | Plugged & abandoned | Oil | Weston, WY | Toco Corporation | 6,291 ft |
| W-01998-A 1 | 49-045-05823 | Plugged & abandoned | Oil | Weston, WY | Toco Corporation | 6,289 ft |
Deepest first where depth is published. See all 139 wells →
Frequently asked questions
How many wells does Toco operate?
Toco is the operator of record for 139 catalogued oil & gas wells, with the largest concentration in Wyoming (139). Only wells in states WellCensus has ingested are counted.
How many of Toco's wells are still active?
0 of Toco's catalogued wells are active; 139 are plugged & abandoned.
In which states does Toco operate wells?
Toco is the operator of record for wells in Wyoming (139).
Does Toco operate mostly oil or gas wells?
105 of Toco's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Toco's deepest well?
Among wells with a published depth, Grynberg 1 in Weston, WY is the deepest at 8,359 ft.
Where Toco'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, “Toco — well portfolio”, https://wellcensus.com/operators/toco-28852 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).