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WellCensus

James Jansen

Operator of record for 1 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

James Jansen is the operator of record for 1 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 1 (100%) are plugged & abandoned. Its largest concentration is in California, with 1 wells (100% of its portfolio).

Wells operated

1

Active

0

Plugged

1

Orphaned

0

Portfolio by state

StateWells
California1

Well mix

Oil wells
0
Gas wells
0
Shut-in
0
Active share
0%

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Where does James Jansen operate?

James Jansen's catalogued wells are spread across 1 state: California (1). Its 1 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 James Jansen’s wells are active, plugged or orphaned?

0% of James Jansen'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 James Jansen operate?

By product class, 0 (0%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%.

Notable wells operated by James Jansen

Wells operated by James Jansen
WellAPI # / state IDStatusTypeLocationOperatorDepth
Jansen 104-111-06077Plugged & abandonedOther typeVentura, CAJames Jansen—

Deepest first where depth is published. See all 1 wells →

Frequently asked questions

How many wells does James Jansen operate?

James Jansen is the operator of record for 1 catalogued oil & gas wells, with the largest concentration in California (1). Only wells in states WellCensus has ingested are counted.

How many of James Jansen's wells are still active?

0 of James Jansen's catalogued wells are active; 1 are plugged & abandoned.

In which states does James Jansen operate wells?

James Jansen is the operator of record for wells in California (1).

Does James Jansen operate mostly oil or gas wells?

0 of James Jansen's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.

Where James Jansen'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, “James Jansen — well portfolio”, https://wellcensus.com/operators/james-jansen-36400 (data as of October 10, 2026).

Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).