Pennant Operating
Operator of record for 10 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Pennant Operating is the operator of record for 10 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 10 (100%) are plugged & abandoned. Its largest concentration is in California, with 10 wells (100% of its portfolio).
Wells operated
10
Active
0
Plugged
10
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 10 |
Well mix
- Oil wells
- 1
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 0%
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Claim Pennant Operating to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Pennant Operating operate?
Pennant Operating's catalogued wells are spread across 1 state: California (10). Its 10 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 Pennant Operating’s wells are active, plugged or orphaned?
0% of Pennant Operating'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 Pennant Operating operate?
By product class, 1 (10%) are oil wells and 1 (10%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Solano (CA), Stanislaus (CA), Monterey (CA), Madera (CA), Kings (CA) and Kern (CA).
Notable wells operated by Pennant Operating
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Alma-Noble 1-8 | 04-095-00321 | Plugged & abandoned | Other type | Solano, CA | Pennant Operating Company | — |
| Moore 1 | 04-099-00047 | Plugged & abandoned | Other type | Stanislaus, CA | Pennant Operating Company | — |
| BCB-Madero 1-30 | 04-053-01290 | Plugged & abandoned | Other type | Monterey, CA | Pennant Operating Company | — |
| BCB-Madero 2-30 | 04-053-01291 | Plugged & abandoned | Other type | Monterey, CA | Pennant Operating Company | — |
| Union-NLF-Gill 1-35 | 04-039-00148 | Plugged & abandoned | Other type | Madera, CA | Pennant Operating Company | — |
| Messmer Oil Co.-Beynon 1-11 | 04-031-00023 | Plugged & abandoned | Other type | Kings, CA | Pennant Operating Company | — |
| BCB Olcese Estate 1-21 | 04-029-18201 | Plugged & abandoned | Oil | Kern, CA | Pennant Operating Company | — |
| Southlake Farms 1-25 | 04-031-00214 | Plugged & abandoned | Gas | Kings, CA | Pennant Operating Company | — |
| BCB-Doud A 1-29 | 04-053-01287 | Plugged & abandoned | Other type | Monterey, CA | Pennant Operating Company | — |
| BCB-Cooper 1-24 | 04-053-01289 | Plugged & abandoned | Other type | Monterey, CA | Pennant Operating Company | — |
Deepest first where depth is published. See all 10 wells →
Frequently asked questions
How many wells does Pennant Operating operate?
Pennant Operating is the operator of record for 10 catalogued oil & gas wells, with the largest concentration in California (10). Only wells in states WellCensus has ingested are counted.
How many of Pennant Operating's wells are still active?
0 of Pennant Operating's catalogued wells are active; 10 are plugged & abandoned.
In which states does Pennant Operating operate wells?
Pennant Operating is the operator of record for wells in California (10).
Does Pennant Operating operate mostly oil or gas wells?
1 of Pennant Operating's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
Where Pennant Operating'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, “Pennant Operating — well portfolio”, https://wellcensus.com/operators/pennant-operating-8199 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).