Jf Kosanke
Operator of record for 16 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Jf Kosanke is the operator of record for 16 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 16 (100%) are plugged & abandoned. Its largest concentration is in California, with 16 wells (100% of its portfolio).
Wells operated
16
Active
0
Plugged
16
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 16 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Jf Kosanke operate?
Jf Kosanke's catalogued wells are spread across 1 state: California (16). Its 16 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 Jf Kosanke’s wells are active, plugged or orphaned?
0% of Jf Kosanke'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 Jf Kosanke operate?
By product class, 0 (0%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Kern (CA) and San Luis Obispo (CA).
Notable wells operated by Jf Kosanke
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Fpk 1 | 04-029-32642 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Shannon K-7-14 | 04-029-32652 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Kc 9 | 04-029-32646 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Phillips 1 | 04-029-32650 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Lease by J. F. Kosanke K-3-14 | 04-029-32643 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Lease by J. F. Kosanke K-4-14 | 04-029-32644 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Lease by J. F. Kosanke K-5 | 04-029-32645 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| K.C. 10 | 04-029-32647 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Kosanke & Shannon 1 | 04-079-00307 | Plugged & abandoned | Other type | San Luis Obispo, CA | J. F. Kosanke | — |
| Kosanke 8 | 04-029-18985 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Cok 11 | 04-029-32641 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
| Kosanke 6 | 04-029-32648 | Plugged & abandoned | Other type | Kern, CA | J. F. Kosanke | — |
Deepest first where depth is published. See all 16 wells →
Frequently asked questions
How many wells does Jf Kosanke operate?
Jf Kosanke is the operator of record for 16 catalogued oil & gas wells, with the largest concentration in California (16). Only wells in states WellCensus has ingested are counted.
How many of Jf Kosanke's wells are still active?
0 of Jf Kosanke's catalogued wells are active; 16 are plugged & abandoned.
In which states does Jf Kosanke operate wells?
Jf Kosanke is the operator of record for wells in California (16).
Does Jf Kosanke operate mostly oil or gas wells?
0 of Jf Kosanke's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Jf Kosanke'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, “Jf Kosanke — well portfolio”, https://wellcensus.com/operators/jf-kosanke-6186 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).