Pentarch Petroleum
Operator of record for 10 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Pentarch Petroleum is the operator of record for 10 catalogued U.S. oil & gas wells in 1 state. 9 (90%) are active, 1 (10%) plugged & abandoned. Its largest concentration is in California, with 10 wells (100% of its portfolio).
Wells operated
10
Active
9
Plugged
1
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 10 |
Well mix
- Oil wells
- 10
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 90%
Is this your company?
Claim Pentarch Petroleum to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Pentarch Petroleum operate?
Pentarch Petroleum'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 Pentarch Petroleum’s wells are active, plugged or orphaned?
90% of Pentarch Petroleum's catalogued wells are active, 61 percentage points above the national share of 29%. 10% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Pentarch Petroleum operate?
By product class, 10 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%.
Notable wells operated by Pentarch Petroleum
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Pentarch Petroleum 2 | 04-107-20178 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch Petroleum 3 | 04-107-20211 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch Petroleum 6 | 04-107-20257 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch 9 | 04-107-20279 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch Petroleum 1 | 04-107-20154 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch Petroleum 8 | 04-107-20271 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch Petroleum 4 | 04-107-20216 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch Petroleum 5A | 04-107-20275 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch Petroleum 7 | 04-107-20272 | Active | Oil | Tulare, CA | Pentarch Petroleum | — |
| Pentarch Petroleum 5 | 04-107-20230 | Plugged & abandoned | Oil | Tulare, CA | Pentarch Petroleum | — |
Deepest first where depth is published. See all 10 wells →
Frequently asked questions
How many wells does Pentarch Petroleum operate?
Pentarch Petroleum 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 Pentarch Petroleum's wells are still active?
9 of Pentarch Petroleum's catalogued wells are active; 1 are plugged & abandoned.
In which states does Pentarch Petroleum operate wells?
Pentarch Petroleum is the operator of record for wells in California (10).
Does Pentarch Petroleum operate mostly oil or gas wells?
10 of Pentarch Petroleum's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Pentarch 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, “Pentarch Petroleum — well portfolio”, https://wellcensus.com/operators/pentarch-petroleum-16447 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).