Chaparral Petroleum
Operator of record for 17 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Chaparral Petroleum is the operator of record for 17 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 7 (41%) are plugged & abandoned and 2 flagged as orphaned. Its largest concentration is in California, with 17 wells (100% of its portfolio).
Wells operated
17
Active
0
Plugged
7
Orphaned
2
Portfolio by state
| State | Wells |
|---|---|
| California | 17 |
Well mix
- Oil wells
- 17
- Gas wells
- 0
- Shut-in
- 2
- Active share
- 0%
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Claim your operator profileWhere does Chaparral Petroleum operate?
Chaparral Petroleum's catalogued wells are spread across 1 state: California (17). Its 17 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 Chaparral Petroleum’s wells are active, plugged or orphaned?
0% of Chaparral Petroleum's catalogued wells are active, 29 percentage points below the national share of 29%. 41% are plugged & abandoned, against 47% nationally. 2 wells (12%) are shut-in — unplugged but idle. 2 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Chaparral Petroleum operate?
By product class, 17 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in San Luis Obispo (CA), Tulare (CA) and Kern (CA).
Notable wells operated by Chaparral Petroleum
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Tiber 12 | 04-079-00761 | Other status | Oil | San Luis Obispo, CA | Chaparral Petroleum, Inc. | — |
| Mittelstead et al 1 | 04-107-20114 | Other status | Oil | Tulare, CA | Chaparral Petroleum, Inc. | — |
| Hollenbeck-Phoenix 102 | 04-029-52803 | Other status | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| Transamerica 10 | 04-029-38192 | Plugged & abandoned | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| Transamerica 9 | 04-029-38191 | Plugged & abandoned | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| Transamerica 4 | 04-029-38187 | Orphaned | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| Transamerica 5 | 04-029-38188 | Orphaned | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| Transamerica D-2 | 04-029-51379 | Plugged & abandoned | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| H & T 12-C | 04-029-52804 | Other status | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| Transamerica 3 | 04-029-38186 | Plugged & abandoned | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| Monarch 110 | 04-029-52498 | Other status | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
| Transamerica 7 | 04-029-38190 | Plugged & abandoned | Oil | Kern, CA | Chaparral Petroleum, Inc. | — |
Deepest first where depth is published. See all 17 wells →
Frequently asked questions
How many wells does Chaparral Petroleum operate?
Chaparral Petroleum is the operator of record for 17 catalogued oil & gas wells, with the largest concentration in California (17). Only wells in states WellCensus has ingested are counted.
How many of Chaparral Petroleum's wells are still active?
0 of Chaparral Petroleum's catalogued wells are active; 7 are plugged & abandoned and 2 are flagged as orphaned.
In which states does Chaparral Petroleum operate wells?
Chaparral Petroleum is the operator of record for wells in California (17).
Does Chaparral Petroleum operate mostly oil or gas wells?
17 of Chaparral Petroleum's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Chaparral Petroleum'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, “Chaparral Petroleum — well portfolio”, https://wellcensus.com/operators/chaparral-petroleum-4729 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).