M & J Oil
Operator of record for 74 catalogued wells across 4 states. Every well below links to its full registry page.
Filed as: M & J OIL · M & J OIL CO · M & J OIL CO. · M & J Oil Co., Inc.
At a glance
M & J Oil is the operator of record for 74 catalogued U.S. oil & gas wells in 4 states. None is listed as active, 66 (89%) are plugged & abandoned. Its largest concentration is in Colorado, with 52 wells (70% of its portfolio).
Wells operated
74
Active
0
Plugged
66
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Colorado | 52 |
| North Dakota | 14 |
| Wyoming | 6 |
| Illinois | 2 |
Well mix
- Oil wells
- 22
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim M & J Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does M & J Oil operate?
M & J Oil's catalogued wells are spread across 4 states: Colorado (52), North Dakota (14), Wyoming (6) and Illinois (2). Its 52 Colorado wells are 0.0% of the 124,327 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 Oil’s wells are active, plugged or orphaned?
0% of M & J Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 89% 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 Oil operate?
By product class, 22 (30%) are oil wells and 1 (1%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is 13-10 Living Springs Ranch in Adams, CO at 7,213 ft. The wells listed below sit in Adams (CO), Elbert (CO), Weld (CO) and Arapahoe (CO). State filings spell the name 4 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by M & J Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| 13-10 Living Springs Ranch | 05-001-08773 | Plugged & abandoned | Other type | Adams, CO | M & J Oil Co | 7,213 ft |
| 21-5 Mccoy Amoco | 05-039-06434 | Plugged & abandoned | Other type | Elbert, CO | M & J Oil Co | 7,134 ft |
| 24-31 Amoco-Uprr | 05-123-12919 | Plugged & abandoned | Other type | Weld, CO | M & J Oil Co | 6,999 ft |
| 43-27 Amoco-Nordloh | 05-005-06846 | Plugged & abandoned | Other type | Arapahoe, CO | M & J Oil Co | 6,933 ft |
| 13-34 Prairie Minerals Ltd | 05-001-08213 | Plugged & abandoned | Other type | Adams, CO | M & J Oil Co | 6,799 ft |
| 21-2 Claycomb | 05-001-08193 | Plugged & abandoned | Other type | Adams, CO | M & J Oil Co | 6,696 ft |
| 43-20 Bishop | 05-039-06433 | Plugged & abandoned | Other type | Elbert, CO | M & J Oil Co | 6,683 ft |
| 11-28 D. Wildy | 05-039-06456 | Plugged & abandoned | Other type | Elbert, CO | M & J Oil Co | 6,650 ft |
| 22-11 Amoco Linnebur | 05-005-06855 | Plugged & abandoned | Other type | Arapahoe, CO | M & J Oil Co | 6,600 ft |
| 24-22 V.M. Diller | 05-039-06457 | Plugged & abandoned | Other type | Elbert, CO | M & J Oil Co | 6,553 ft |
| 44-11 Amoco-Linnebur | 05-005-06860 | Plugged & abandoned | Other type | Arapahoe, CO | M & J Oil Co | 6,543 ft |
| 21-4 Douglas, Thomas | 05-001-08476 | Plugged & abandoned | Other type | Adams, CO | M & J Oil Co | 6,534 ft |
Deepest first where depth is published. See all 74 wells →
Frequently asked questions
How many wells does M & J Oil operate?
M & J Oil is the operator of record for 74 catalogued oil & gas wells, with the largest concentration in Colorado (52). Only wells in states WellCensus has ingested are counted.
How many of M & J Oil's wells are still active?
0 of M & J Oil's catalogued wells are active; 66 are plugged & abandoned.
In which states does M & J Oil operate wells?
M & J Oil is the operator of record for wells in Colorado (52), North Dakota (14), Wyoming (6) and Illinois (2).
Does M & J Oil operate mostly oil or gas wells?
22 of M & J Oil's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is M & J Oil's deepest well?
Among wells with a published depth, 13-10 Living Springs Ranch in Adams, CO is the deepest at 7,213 ft.
Where M & J Oil'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 Oil — well portfolio”, https://wellcensus.com/operators/m-j-oil-2966 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).