Mar Oil & Gas
Operator of record for 95 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: MAR OIL & GAS CORP. · Mar Oil & Gas Corporation
At a glance
Mar Oil & Gas is the operator of record for 95 catalogued U.S. oil & gas wells in 2 states. 38 (40%) are active, 29 (31%) plugged & abandoned and 12 flagged as orphaned. Its largest concentration is in New Mexico, with 90 wells (95% of its portfolio).
Wells operated
95
Active
38
Plugged
29
Orphaned
12
Portfolio by state
| State | Wells |
|---|---|
| New Mexico | 90 |
| Kansas | 5 |
Well mix
- Oil wells
- 67
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 40%
Is this your company?
Claim Mar Oil & Gas to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Mar Oil & Gas operate?
Mar Oil & Gas's catalogued wells are spread across 2 states: New Mexico (90) and Kansas (5). Its 90 New Mexico wells are 0.1% of the 141,088 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 Mar Oil & Gas’s wells are active, plugged or orphaned?
40% of Mar Oil & Gas's catalogued wells are active, 11 percentage points above the national share of 29%. 31% are plugged & abandoned, against 47% nationally. 12 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Mar Oil & Gas operate?
By product class, 67 (71%) 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 Malmar Unit #109 in Lea, NM at 99,999 ft. State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Mar Oil & Gas
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Malmar Unit #109 | 30-025-27308 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 99,999 ft |
| Malmar Unit #101 | 30-025-00542 | Plugged & abandoned | Injection | Lea, NM | Mar Oil & Gas Corp. | 99,999 ft |
| Malmar Unit #102 | 30-025-00541 | Plugged & abandoned | Injection | Lea, NM | Mar Oil & Gas Corp. | 99,999 ft |
| Malmar Unit #309 | 30-025-00519 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 11,165 ft |
| Eumont Hardy Unit #106 | 30-025-32479 | Active | Oil | Lea, NM | Mar Oil & Gas Corp. | 7,000 ft |
| T P #001 | 30-025-24278 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 5,100 ft |
| Adlong 5 #001 | 30-025-23054 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 5,040 ft |
| Malmar Unit #114 | 30-025-00538 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 5,025 ft |
| Sfprr #010 | 30-025-23624 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 5,015 ft |
| Santa Fe #003 | 30-025-25329 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 4,985 ft |
| Malmar Unit #104 | 30-025-01470 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 4,470 ft |
| Malmar Unit #214 | 30-025-00515 | Plugged & abandoned | Oil | Lea, NM | Mar Oil & Gas Corp. | 4,465 ft |
Deepest first where depth is published. See all 95 wells →
Frequently asked questions
How many wells does Mar Oil & Gas operate?
Mar Oil & Gas is the operator of record for 95 catalogued oil & gas wells, with the largest concentration in New Mexico (90). Only wells in states WellCensus has ingested are counted.
How many of Mar Oil & Gas's wells are still active?
38 of Mar Oil & Gas's catalogued wells are active; 29 are plugged & abandoned and 12 are flagged as orphaned.
In which states does Mar Oil & Gas operate wells?
Mar Oil & Gas is the operator of record for wells in New Mexico (90) and Kansas (5).
Does Mar Oil & Gas operate mostly oil or gas wells?
67 of Mar Oil & Gas's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Mar Oil & Gas's deepest well?
Among wells with a published depth, Malmar Unit #109 in Lea, NM is the deepest at 99,999 ft.
Where Mar Oil & Gas'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, “Mar Oil & Gas — well portfolio”, https://wellcensus.com/operators/mar-oil-gas-2572 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).