Occidental Petroleum

Operator of record for 368 catalogued wells across 9 states. Every well below links to its full registry page.

Filed as: OCCIDENTAL PETROLEUM · OCCIDENTAL PETROLEUM CORP · OCCIDENTAL PETROLEUM CORP. · Occidental Petroleum Co · …

At a glance

Occidental Petroleum is the operator of record for 368 catalogued U.S. oil & gas wells in 9 states. None is listed as active, 349 (95%) are plugged & abandoned and 2 flagged as orphaned. Its largest concentration is in California, with 281 wells (76% of its portfolio).

Wells operated

368

Active

Plugged

349

Orphaned

Portfolio by state

State	Wells
California	281
Louisiana	49
Colorado	15
Michigan	10
Mississippi	5
Utah	3
Alabama	2
North Dakota	2
Montana	1

Well mix

Oil wells: 80
Gas wells: 53
Shut-in: 0
Active share: 0%

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Where does Occidental Petroleum operate?

Occidental Petroleum's catalogued wells are spread across 9 states: California (281), Louisiana (49), Colorado (15), Michigan (10) and Mississippi (5) and 4 more. Its 281 California wells are 0.1% 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 Occidental Petroleum’s wells are active, plugged or orphaned?

0% of Occidental Petroleum's catalogued wells are active, 29 percentage points below the national share of 29%. 95% 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 Occidental Petroleum operate?

By product class, 80 (22%) are oil wells and 53 (14%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Sl 5218 001 in St Bernard, LA at 16,556 ft. The wells listed below sit in St Bernard (LA), Cameron (LA), St Mary (LA), St Martin (LA), Plaquemines (LA) 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 Occidental Petroleum

Wells operated by Occidental Petroleum
Well	API # / state ID	Status	Type	Location	Operator	Depth
Sl 5218 001	17-727-00235	Plugged & abandoned	Other type	St Bernard, LA	Occidental Petroleum Corp.	16,556 ft
Mermentau Mineral&land Co 002	17-023-20050	Plugged & abandoned	Other type	Cameron, LA	Occidental Petroleum Corp.	16,535 ft
St Mary Parish La Nd Co 001	17-101-20495	Plugged & abandoned	Other type	St Mary, LA	Occidental Petroleum Corp.	15,840 ft
Planulina F Su-A;dow Chemi Co 001	17-099-01232	Plugged & abandoned	Gas	St Martin, LA	Occidental Petroleum Corp.	15,502 ft
Ll&e 001	17-075-21197	Plugged & abandoned	Other type	Plaquemines, LA	Occidental Petroleum Corp.	15,307 ft
J C Stovall Etal 001	17-113-20259	Plugged & abandoned	Other type	Vermilion, LA	Occidental Petroleum Corp.	15,300 ft
Willie Holcombe Est. #1	01-023-20074	Plugged & abandoned	Other type	Choctaw, AL	Occidental Petroleum Co.	13,620 ft
The Dow Chemical Co 002	17-099-01644	Plugged & abandoned	Other type	St Martin, LA	Occidental Petroleum Corp.	13,154 ft
Ulysse Gonsoulin Estate 001	17-099-01049	Plugged & abandoned	Other type	St Martin, LA	Occidental Petroleum Corp.	13,140 ft
Louis C Hebert Etal 001	17-099-20361	Plugged & abandoned	Other type	St Martin, LA	Occidental Petroleum Corp.	13,047 ft
Herman E Farley Et Al 001	17-075-20987	Plugged & abandoned	Other type	Plaquemines, LA	Occidental Petroleum Corp.	13,022 ft
Sl 5092 001	17-709-00950	Plugged & abandoned	Other type	Iberia, LA	Occidental Petroleum Corp.	12,874 ft

Deepest first where depth is published. See all 368 wells →

Frequently asked questions

How many wells does Occidental Petroleum operate?

Occidental Petroleum is the operator of record for 368 catalogued oil & gas wells, with the largest concentration in California (281). Only wells in states WellCensus has ingested are counted.

How many of Occidental Petroleum's wells are still active?

0 of Occidental Petroleum's catalogued wells are active; 349 are plugged & abandoned and 2 are flagged as orphaned.

In which states does Occidental Petroleum operate wells?

Occidental Petroleum is the operator of record for wells in California (281), Louisiana (49), Colorado (15), Michigan (10), Mississippi (5), Utah (3), Alabama (2), North Dakota (2) and Montana (1).

Does Occidental Petroleum operate mostly oil or gas wells?

80 of Occidental Petroleum's catalogued wells are oil wells and 53 are gas wells; the rest are injection, service or unclassified wells.

What is Occidental Petroleum's deepest well?

Among wells with a published depth, Sl 5218 001 in St Bernard, LA is the deepest at 16,556 ft.

Where Occidental 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, “Occidental Petroleum — well portfolio”, https://wellcensus.com/operators/occidental-petroleum-2424 (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).