Qr Grenfell & Son
Operator of record for 5 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Qr Grenfell & Son is the operator of record for 5 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 5 (100%) are plugged & abandoned. Its largest concentration is in California, with 5 wells (100% of its portfolio).
Wells operated
5
Active
0
Plugged
5
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 5 |
Well mix
- Oil wells
- 1
- Gas wells
- 3
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Qr Grenfell & Son to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Qr Grenfell & Son operate?
Qr Grenfell & Son's catalogued wells are spread across 1 state: California (5). Its 5 California wells are 0.0% of the 242,471 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 Qr Grenfell & Son’s wells are active, plugged or orphaned?
0% of Qr Grenfell & Son'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 Qr Grenfell & Son operate?
By product class, 1 (20%) are oil wells and 3 (60%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Solano (CA) and Kern (CA).
Notable wells operated by Qr Grenfell & Son
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Dozier-Pressley 3 | 04-095-20137 | Plugged & abandoned | Gas | Solano, CA | Q. R. Grenfell & Son | — |
| Marshall-Winston 1 | 04-029-14928 | Plugged & abandoned | Other type | Kern, CA | Q. R. Grenfell & Son | — |
| Dozier-Pressley 2 | 04-095-20125 | Plugged & abandoned | Gas | Solano, CA | Q. R. Grenfell & Son | — |
| Dutra et al 1 | 04-095-00054 | Plugged & abandoned | Gas | Solano, CA | Q. R. Grenfell & Son | — |
| Standard-U.S.A. 1 | 04-029-46562 | Plugged & abandoned | Oil | Kern, CA | Q. R. Grenfell & Son | — |
Deepest first where depth is published. See all 5 wells →
Frequently asked questions
How many wells does Qr Grenfell & Son operate?
Qr Grenfell & Son is the operator of record for 5 catalogued oil & gas wells, with the largest concentration in California (5). Only wells in states WellCensus has ingested are counted.
How many of Qr Grenfell & Son's wells are still active?
0 of Qr Grenfell & Son's catalogued wells are active; 5 are plugged & abandoned.
In which states does Qr Grenfell & Son operate wells?
Qr Grenfell & Son is the operator of record for wells in California (5).
Does Qr Grenfell & Son operate mostly oil or gas wells?
1 of Qr Grenfell & Son's catalogued wells are oil wells and 3 are gas wells; the rest are injection, service or unclassified wells.
Where Qr Grenfell & Son'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, “Qr Grenfell & Son — well portfolio”, https://wellcensus.com/operators/qr-grenfell-son-10204 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).