Tri Union Development
Operator of record for 53 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: TRI-UNION DEVELOPMENT CORP. · Tri-Union Development Corporation
At a glance
Tri Union Development is the operator of record for 53 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 53 (100%) are plugged & abandoned. Its largest concentration is in California, with 51 wells (96% of its portfolio).
Wells operated
53
Active
0
Plugged
53
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 51 |
| Louisiana | 2 |
Well mix
- Oil wells
- 34
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Tri Union Development to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Tri Union Development operate?
Tri Union Development's catalogued wells are spread across 2 states: California (51) and Louisiana (2). Its 51 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 Tri Union Development’s wells are active, plugged or orphaned?
0% of Tri Union Development's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Tri Union Development operate?
By product class, 34 (64%) 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 Ra Sud;olinkraft H 001 in Jackson, LA at 11,828 ft. The wells listed below sit in Jackson (LA), St James (LA), Merced (CA), Stanislaus (CA), Fresno (CA) and Kern (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 Tri Union Development
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Hoss Ra Sud;olinkraft H 001 | 17-049-20068 | Plugged & abandoned | Other type | Jackson, LA | Tri-Union Development Corp. | 11,828 ft |
| Edc 001 | 17-093-20270 | Plugged & abandoned | Other type | St James, LA | Tri-Union Development Corp. | 6,966 ft |
| Redfern 1-29 | 04-047-20012 | Plugged & abandoned | Other type | Merced, CA | Tri-Union Development Corporation | — |
| Buttes-Favier 32-1 | 04-047-20061 | Plugged & abandoned | Other type | Merced, CA | Tri-Union Development Corporation | — |
| Maciel 1 | 04-099-00041 | Plugged & abandoned | Other type | Stanislaus, CA | Tri-Union Development Corporation | — |
| Noble 2-23 | 04-019-06082 | Plugged & abandoned | Other type | Fresno, CA | Tri-Union Development Corporation | — |
| Denio Comm 1 | 04-029-06729 | Plugged & abandoned | Other type | Kern, CA | Tri-Union Development Corporation | — |
| Oughton 6 | 04-029-00780 | Plugged & abandoned | Oil | Kern, CA | Tri-Union Development Corporation | — |
| Farrand 2F | 04-029-08527 | Plugged & abandoned | Oil | Kern, CA | Tri-Union Development Corporation | — |
| Porter 17 9 | 04-029-04712 | Plugged & abandoned | Oil | Kern, CA | Tri-Union Development Corporation | — |
| Sullivan 2 | 04-029-00976 | Plugged & abandoned | Oil | Kern, CA | Tri-Union Development Corporation | — |
| Buttes-Newhall 21-1 | 04-047-20058 | Plugged & abandoned | Other type | Merced, CA | Tri-Union Development Corporation | — |
Deepest first where depth is published. See all 53 wells →
Frequently asked questions
How many wells does Tri Union Development operate?
Tri Union Development is the operator of record for 53 catalogued oil & gas wells, with the largest concentration in California (51). Only wells in states WellCensus has ingested are counted.
How many of Tri Union Development's wells are still active?
0 of Tri Union Development's catalogued wells are active; 53 are plugged & abandoned.
In which states does Tri Union Development operate wells?
Tri Union Development is the operator of record for wells in California (51) and Louisiana (2).
Does Tri Union Development operate mostly oil or gas wells?
34 of Tri Union Development's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Tri Union Development's deepest well?
Among wells with a published depth, Hoss Ra Sud;olinkraft H 001 in Jackson, LA is the deepest at 11,828 ft.
Where Tri Union Development'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, “Tri Union Development — well portfolio”, https://wellcensus.com/operators/tri-union-development-6726 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).