M & J Operator
Operator of record for 1 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
M & J Operator is the operator of record for 1 catalogued U.S. oil & gas wells in 1 state. 1 (100%) are active, 0 (0%) plugged & abandoned. Its largest concentration is in California, with 1 wells (100% of its portfolio).
Wells operated
1
Active
1
Plugged
0
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 1 |
Well mix
- Oil wells
- 1
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 100%
Is this your company?
Claim M & J Operator to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does M & J Operator operate?
M & J Operator'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 M & J Operator’s wells are active, plugged or orphaned?
100% of M & J Operator's catalogued wells are active, 71 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 M & J Operator operate?
By product class, 1 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%.
Notable wells operated by M & J Operator
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Ella 1 | 04-037-09424 | Active | Oil | Los Angeles, CA | M & J Operator | — |
Deepest first where depth is published. See all 1 wells →
Frequently asked questions
How many wells does M & J Operator operate?
M & J Operator 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 M & J Operator's wells are still active?
1 of M & J Operator's catalogued wells are active; 0 are plugged & abandoned.
In which states does M & J Operator operate wells?
M & J Operator is the operator of record for wells in California (1).
Does M & J Operator operate mostly oil or gas wells?
1 of M & J Operator's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where M & J Operator'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, “M & J Operator — well portfolio”, https://wellcensus.com/operators/m-j-operator-18401 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).