Mariposa Petroleum
Operator of record for 13 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Mariposa Petroleum is the operator of record for 13 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 13 (100%) are plugged & abandoned. Its largest concentration is in California, with 13 wells (100% of its portfolio).
Wells operated
13
Active
0
Plugged
13
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 13 |
Well mix
- Oil wells
- 0
- Gas wells
- 2
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Mariposa Petroleum operate?
Mariposa Petroleum'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 Mariposa Petroleum’s wells are active, plugged or orphaned?
0% of Mariposa Petroleum'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 Mariposa Petroleum operate?
By product class, 0 (0%) are oil wells and 2 (15%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Stanislaus (CA), Yolo (CA), Merced (CA), San Luis Obispo (CA), Santa Barbara (CA) and San Joaquin (CA).
Notable wells operated by Mariposa Petroleum
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Faith Ranch 1 | 04-099-20022 | Plugged & abandoned | Other type | Stanislaus, CA | Mariposa Petroleum Co. | — |
| Faith Ranch 2 | 04-099-20028 | Plugged & abandoned | Other type | Stanislaus, CA | Mariposa Petroleum Co. | — |
| Reclamation 1 | 04-113-20490 | Plugged & abandoned | Other type | Yolo, CA | Mariposa Petroleum Co. | — |
| Blewett Community 16 | 04-099-20023 | Plugged & abandoned | Other type | Stanislaus, CA | Mariposa Petroleum Co. | — |
| Caroline Jenkins et al 1 | 04-047-20050 | Plugged & abandoned | Other type | Merced, CA | Mariposa Petroleum Co. | — |
| Peck Ranch 2 | 04-079-20328 | Plugged & abandoned | Other type | San Luis Obispo, CA | Mariposa Petroleum Co. | — |
| Texaco-Peck Ranch 1 | 04-079-20380 | Plugged & abandoned | Other type | San Luis Obispo, CA | Mariposa Petroleum Co. | — |
| Russell 1 | 04-113-20470 | Plugged & abandoned | Gas | Yolo, CA | Mariposa Petroleum Co. | — |
| Federal 15-1 | 04-083-21118 | Plugged & abandoned | Other type | Santa Barbara, CA | Mariposa Petroleum Co. | — |
| Russell 3 | 04-113-20501 | Plugged & abandoned | Other type | Yolo, CA | Mariposa Petroleum Co. | — |
| Navarra 1 | 04-077-20338 | Plugged & abandoned | Other type | San Joaquin, CA | Mariposa Petroleum Co. | — |
| Peck Ranch 1 | 04-079-20274 | Plugged & abandoned | Other type | San Luis Obispo, CA | Mariposa Petroleum Co. | — |
Deepest first where depth is published. See all 13 wells →
Frequently asked questions
How many wells does Mariposa Petroleum operate?
Mariposa Petroleum 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 Mariposa Petroleum's wells are still active?
0 of Mariposa Petroleum's catalogued wells are active; 13 are plugged & abandoned.
In which states does Mariposa Petroleum operate wells?
Mariposa Petroleum is the operator of record for wells in California (13).
Does Mariposa Petroleum operate mostly oil or gas wells?
0 of Mariposa Petroleum's catalogued wells are oil wells and 2 are gas wells; the rest are injection, service or unclassified wells.
Where Mariposa 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, “Mariposa Petroleum — well portfolio”, https://wellcensus.com/operators/mariposa-petroleum-10632 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).