On Mark Oil & Gas
Operator of record for 2 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
On Mark Oil & Gas is the operator of record for 2 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 1 (50%) are plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Louisiana, with 2 wells (100% of its portfolio).
Wells operated
2
Active
0
Plugged
1
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Louisiana | 2 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim On Mark Oil & Gas to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does On Mark Oil & Gas operate?
On Mark Oil & Gas's catalogued wells are spread across 1 state: Louisiana (2). Its 2 Louisiana wells are 0.0% of the 225,728 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 On Mark Oil & Gas’s wells are active, plugged or orphaned?
0% of On Mark Oil & Gas's catalogued wells are active, 29 percentage points below the national share of 29%. 50% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does On Mark Oil & Gas operate?
By product class, 0 (0%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Hoss Rc Sum;p A Sharp Iv 001 in Caddo, LA at 6,500 ft.
Notable wells operated by On Mark Oil & Gas
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Hoss Rc Sum;p A Sharp Iv 001 | 17-017-31786 | Plugged & abandoned | Other type | Caddo, LA | On-Mark Oil & Gas, LLC | 6,500 ft |
| Pxy Ra Sub;j Blackwell 001 | 17-017-26546 | Orphaned | Other type | Caddo, LA | On-Mark Oil & Gas, LLC | 2,909 ft |
Deepest first where depth is published. See all 2 wells →
Frequently asked questions
How many wells does On Mark Oil & Gas operate?
On Mark Oil & Gas is the operator of record for 2 catalogued oil & gas wells, with the largest concentration in Louisiana (2). Only wells in states WellCensus has ingested are counted.
How many of On Mark Oil & Gas's wells are still active?
0 of On Mark Oil & Gas's catalogued wells are active; 1 are plugged & abandoned and 1 are flagged as orphaned.
In which states does On Mark Oil & Gas operate wells?
On Mark Oil & Gas is the operator of record for wells in Louisiana (2).
Does On Mark Oil & Gas operate mostly oil or gas wells?
0 of On Mark Oil & Gas's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is On Mark Oil & Gas's deepest well?
Among wells with a published depth, Hoss Rc Sum;p A Sharp Iv 001 in Caddo, LA is the deepest at 6,500 ft.
Where On Mark 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, “On Mark Oil & Gas — well portfolio”, https://wellcensus.com/operators/on-mark-oil-gas-85555 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).