Union Texas Petroleum

Operator of record for 621 catalogued wells across 12 states. Every well below links to its full registry page.

Filed as: UNION TEXAS PETROLEUM · UNION TEXAS PETROLEUM CORP · UNION TEXAS PETROLEUM CORP. · Union Texas Petroleum · …

At a glance

Union Texas Petroleum is the operator of record for 621 catalogued U.S. oil & gas wells in 12 states. None is listed as active, 576 (93%) are plugged & abandoned and 2 flagged as orphaned. Its largest concentration is in Louisiana, with 357 wells (57% of its portfolio).

Wells operated

621

Active

Plugged

576

Orphaned

Portfolio by state

State	Wells
Louisiana	357
Colorado	90
Wyoming	59
Montana	36
North Dakota	34
Oklahoma	16
Kansas	9
Utah	8
Alabama	5
New Mexico	4
Arkansas	2
California	1

Well mix

Oil wells: 224
Gas wells: 123
Shut-in: 0
Active share: 0%

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Where does Union Texas Petroleum operate?

Union Texas Petroleum's catalogued wells are spread across 12 states: Louisiana (357), Colorado (90), Wyoming (59), Montana (36) and North Dakota (34) and 7 more. Its 357 Louisiana wells are 0.2% 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 Union Texas Petroleum’s wells are active, plugged or orphaned?

0% of Union Texas Petroleum's catalogued wells are active, 29 percentage points below the national share of 29%. 93% are plugged & abandoned, against 47% nationally. 2 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.

What kinds of wells does Union Texas Petroleum operate?

By product class, 224 (36%) are oil wells and 123 (20%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Hulda #001 in Lea, NM at 99,999 ft. The wells listed below sit in Lea (NM), Livingston (LA), St Mary (LA), Lafourche (LA), Mobile (AL) and Vermilion (LA) and other counties. State filings spell the name 7 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.

Notable wells operated by Union Texas Petroleum

Wells operated by Union Texas Petroleum
Well	API # / state ID	Status	Type	Location	Operator	Depth
Hulda #001	30-025-05106	Plugged & abandoned	Injection	Lea, NM	Union Texas Petroleum Corp	99,999 ft
Crown Zellerbach 001	17-063-20025	Plugged & abandoned	Other type	Livingston, LA	Union Texas Petroleum Corp.	21,510 ft
Sl 10251 003	17-101-21774	Other status	Other type	St Mary, LA	Union Texas Petroleum Corp.	21,000 ft
Sl 2682 006	17-101-20237	Plugged & abandoned	Other type	St Mary, LA	Union Texas Petroleum Corp.	19,520 ft
Ll&e 001	17-057-20966	Plugged & abandoned	Other type	Lafourche, LA	Union Texas Petroleum Corp.	19,086 ft
C.P. Newman 27-14 #1	01-097-20170	Plugged & abandoned	Gas	Mobile, AL	Union Texas Petroleum Corp.	18,800 ft
A.L. Davis et al 25-10 #1	01-097-20297	Plugged & abandoned	Other type	Mobile, AL	Union Texas Petroleum Corp.	18,776 ft
Jos Herpin Et Al Unit 001	17-113-00168	Plugged & abandoned	Gas	Vermilion, LA	Union Texas Petroleum Corp.	18,666 ft
Sl 9136 001	17-711-20281	Plugged & abandoned	Gas	Terrebonne, LA	Union Texas Petroleum Corp.	18,500 ft
Vermilion Parish School Board 001	17-113-21298	Plugged & abandoned	Other type	Vermilion, LA	Union Texas Petroleum Corp.	18,020 ft
Sl 10251 003	17-101-21492	Other status	Other type	St Mary, LA	Union Texas Petroleum Corp.	18,000 ft
Louisiana Furs 001	17-113-20417	Plugged & abandoned	Other type	Vermilion, LA	Union Texas Petroleum Corp.	17,790 ft

Deepest first where depth is published. See all 621 wells →

Frequently asked questions

How many wells does Union Texas Petroleum operate?

Union Texas Petroleum is the operator of record for 621 catalogued oil & gas wells, with the largest concentration in Louisiana (357). Only wells in states WellCensus has ingested are counted.

How many of Union Texas Petroleum's wells are still active?

0 of Union Texas Petroleum's catalogued wells are active; 576 are plugged & abandoned and 2 are flagged as orphaned.

In which states does Union Texas Petroleum operate wells?

Union Texas Petroleum is the operator of record for wells in Louisiana (357), Colorado (90), Wyoming (59), Montana (36), North Dakota (34), Oklahoma (16), Kansas (9), Utah (8), Alabama (5), New Mexico (4), Arkansas (2) and California (1).

Does Union Texas Petroleum operate mostly oil or gas wells?

224 of Union Texas Petroleum's catalogued wells are oil wells and 123 are gas wells; the rest are injection, service or unclassified wells.

What is Union Texas Petroleum's deepest well?

Among wells with a published depth, Hulda #001 in Lea, NM is the deepest at 99,999 ft.

Where Union Texas Petroleum'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, “Union Texas Petroleum — well portfolio”, https://wellcensus.com/operators/union-texas-petroleum-1401 (data as of October 10, 2026).

Dataset updated October 2026 . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).