Onyx Oil
Operator of record for 5 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: ONYX OIL COMPANY, LLC · Onyx Oil Co., Ltd.
At a glance
Onyx Oil is the operator of record for 5 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 4 (80%) are plugged & abandoned. Its largest concentration is in North Dakota, with 4 wells (80% of its portfolio).
Wells operated
5
Active
0
Plugged
4
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| North Dakota | 4 |
| California | 1 |
Well mix
- Oil wells
- 5
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Onyx Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Onyx Oil operate?
Onyx Oil's catalogued wells are spread across 2 states: North Dakota (4) and California (1). Its 4 North Dakota wells are 0.0% of the 43,680 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 Onyx Oil’s wells are active, plugged or orphaned?
0% of Onyx Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 80% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Onyx Oil operate?
By product class, 5 (100%) 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 Duff Trust 24-9 in Renville, ND at 5,400 ft. The wells listed below sit in Renville (ND) and Los Angeles (CA). 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 Onyx Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Duff Trust 24-9 | 33-075-01343 | Plugged & abandoned | Oil | Renville, ND | Onyx Oil Company, LLC | 5,400 ft |
| Alexander-Etal 44-28 | 33-075-01357 | Plugged & abandoned | Oil | Renville, ND | Onyx Oil Company, LLC | 5,260 ft |
| Mccarroll Ranch 5-27 | 33-075-01333 | Plugged & abandoned | Oil | Renville, ND | Onyx Oil Company, LLC | 5,190 ft |
| Knutson-Etal 14-29 | 33-075-01351 | Other status | Oil | Renville, ND | Onyx Oil Company, LLC | 0 ft |
| Lease by Onyx Oil Co., Ltd. 2 | 04-037-10190 | Plugged & abandoned | Oil | Los Angeles, CA | Onyx Oil Co., Ltd. | — |
Deepest first where depth is published. See all 5 wells →
Frequently asked questions
How many wells does Onyx Oil operate?
Onyx Oil is the operator of record for 5 catalogued oil & gas wells, with the largest concentration in North Dakota (4). Only wells in states WellCensus has ingested are counted.
How many of Onyx Oil's wells are still active?
0 of Onyx Oil's catalogued wells are active; 4 are plugged & abandoned.
In which states does Onyx Oil operate wells?
Onyx Oil is the operator of record for wells in North Dakota (4) and California (1).
Does Onyx Oil operate mostly oil or gas wells?
5 of Onyx Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Onyx Oil's deepest well?
Among wells with a published depth, Duff Trust 24-9 in Renville, ND is the deepest at 5,400 ft.
Where Onyx 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, “Onyx Oil — well portfolio”, https://wellcensus.com/operators/onyx-oil-13159 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).