Fourstar Resources
Operator of record for 13 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Fourstar Resources is the operator of record for 13 catalogued U.S. oil & gas wells in 1 state. 9 (69%) are active, 0 (0%) plugged & abandoned. Its largest concentration is in California, with 13 wells (100% of its portfolio).
Wells operated
13
Active
9
Plugged
0
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 13 |
Well mix
- Oil wells
- 13
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 69%
Is this your company?
Claim Fourstar Resources to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Fourstar Resources operate?
Fourstar Resources's catalogued wells are spread across 1 state: California (13). Its 13 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 Fourstar Resources’s wells are active, plugged or orphaned?
69% of Fourstar Resources's catalogued wells are active, 40 percentage points above 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 Fourstar Resources operate?
By product class, 13 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%.
Notable wells operated by Fourstar Resources
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Mitchel 1 | 04-029-17205 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| M & B 4 | 04-029-39988 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| M & B 6 | 04-029-39990 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| Lease by Fourstar Resources LLC 3-21 | 04-029-39987 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| M & B 5 | 04-029-39989 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| Wilrich-Texas Co., Tolco 2 | 04-029-39984 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| Theta 1 | 04-029-39977 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| Theta 6 | 04-029-39982 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| Theta 5 | 04-029-39981 | Active | Oil | Kern, CA | Fourstar Resources LLC | — |
| Theta 2 | 04-029-39978 | Other status | Oil | Kern, CA | Fourstar Resources LLC | — |
| Theta 3 | 04-029-39979 | Other status | Oil | Kern, CA | Fourstar Resources LLC | — |
| Theta 4 | 04-029-39980 | Other status | Oil | Kern, CA | Fourstar Resources LLC | — |
Deepest first where depth is published. See all 13 wells →
Frequently asked questions
How many wells does Fourstar Resources operate?
Fourstar Resources is the operator of record for 13 catalogued oil & gas wells, with the largest concentration in California (13). Only wells in states WellCensus has ingested are counted.
How many of Fourstar Resources's wells are still active?
9 of Fourstar Resources's catalogued wells are active; 0 are plugged & abandoned.
In which states does Fourstar Resources operate wells?
Fourstar Resources is the operator of record for wells in California (13).
Does Fourstar Resources operate mostly oil or gas wells?
13 of Fourstar Resources's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Fourstar Resources'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, “Fourstar Resources — well portfolio”, https://wellcensus.com/operators/fourstar-resources-32643 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).