Cook Brothers
Operator of record for 10 catalogued wells across 2 states. Every well below links to its full registry page.
At a glance
Cook Brothers is the operator of record for 10 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 0 (0%) are plugged & abandoned. Its largest concentration is in Michigan, with 8 wells (80% of its portfolio).
Wells operated
10
Active
0
Plugged
0
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Michigan | 8 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim Cook Brothers to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Cook Brothers operate?
Cook Brothers's catalogued wells are spread across 1 state: Michigan (8). Its 8 Michigan wells are 0.0% of the 85,673 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 Cook Brothers’s wells are active, plugged or orphaned?
0% of Cook Brothers's catalogued wells are active, 29 percentage points below the national share of 29%. 0% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Cook Brothers operate?
By product class, 0 (0%) 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 Anstett, George Et Al 1 in Grand Traverse, MI at 6,520 ft. The wells listed below sit in Grand Traverse (MI), Osceola (MI), Saint Clair (MI) and Lake (MI).
Notable wells operated by Cook Brothers
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Anstett, George Et Al 1 | 21-055-29133 | Other status | Other type | Grand Traverse, MI | Cook Brothers | 6,520 ft |
| State Rose Lake 1 | 21-133-27923 | Other status | Other type | Osceola, MI | Cook Brothers | 3,502 ft |
| Letarte, Frank & Curzydlo, Walter 1 | 21-147-26764 | Other status | Other type | Saint Clair, MI | Cook Brothers | 3,307 ft |
| State Sauble 1 | 21-085-27891 | Other status | Other type | Lake, MI | Cook Brothers | 2,433 ft |
| Dillman, C R, Et Al 1 | 21-085-28119 | Other status | Other type | Lake, MI | Cook Brothers | 2,360 ft |
| State Peacock 2 | 21-085-27607 | Other status | Other type | Lake, MI | Cook Brothers | 2,315 ft |
| Hannon, John W Et Al 1 | 21-085-26552 | Other status | Other type | Lake, MI | Cook Brothers | 2,293 ft |
| Wissman, Edwin Et Al 1 | 21-147-26344 | Other status | Other type | Saint Clair, MI | Cook Brothers | — |
Deepest first where depth is published. See all 10 wells →
Frequently asked questions
How many wells does Cook Brothers operate?
Cook Brothers is the operator of record for 10 catalogued oil & gas wells, with the largest concentration in Michigan (8). Only wells in states WellCensus has ingested are counted.
How many of Cook Brothers's wells are still active?
0 of Cook Brothers's catalogued wells are active; 0 are plugged & abandoned.
In which states does Cook Brothers operate wells?
Cook Brothers is the operator of record for wells in Michigan (8).
Does Cook Brothers operate mostly oil or gas wells?
0 of Cook Brothers's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Cook Brothers's deepest well?
Among wells with a published depth, Anstett, George Et Al 1 in Grand Traverse, MI is the deepest at 6,520 ft.
Where Cook Brothers'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, “Cook Brothers — well portfolio”, https://wellcensus.com/operators/cook-brothers-35611 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).