OxyChem Ingleside Plant

Large load · 1455 TICONDEROGA ROAD, Ingleside, TX

The Ingleside plant in San Patricio County, Texas, is an OxyChem chlor-alkali and vinyl chloride monomer complex with a 1.2 billion pound-per-year ethylene cracker, supplied by an on-site natural-gas cogeneration station and connected to ERCOT through AEP Texas Central at 138 kV. OxyChem, formerly part of Occidental, was acquired by Berkshire Hathaway in January 2026.

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Overview

OxyChem lists Ingleside among its plants making chlorine, caustic soda and vinyl chloride monomer.

Profile

Ingleside Cogeneration and the ERCOT connection: The Ingleside Cogeneration plant, an industrial combined heat and power facility in the chemical manufacturing sector, began operating in July 1999 and sits on the AEP Texas Central 138 kV system in the ERCOT balancing authority. EIA data show it produced 747.3 GWh between April and July 2026 and about 3.1 TWh in a year. Global Energy Monitor lists the station at at least 517 MW.

Ethylene cracker joint venture: Ingleside Ethylene, LLC, a 50/50 joint venture of OxyChem and Mexichem, started a cracker at the complex in 2017 with 1.2 billion pounds a year of capacity, operated by OxyChem and feeding its VCM production under a 20-year supply agreement.

Berkshire Hathaway ownership: Berkshire Hathaway completed its $9.7 billion purchase of OxyChem from Occidental Petroleum on Jan. 2, 2026. Occidental kept the legacy tort and environmental liabilities. OxyChem operates 21 domestic sites including its Texas plants, and Wade Alleman remains president and CEO.

Facility

Activity: Chlorine, caustic soda, vinyl chloride monomer and ethylene
Industry: Manufacturing
Site type: Facility
Operating status: Operating

Related records

OrganizationRoleBasis

Berkshire HathawayParent companyBerkshire Hathaway completes $9.7B OxyChem acquisition | Manufacturing Dive

Timeline

Jul 1, 1999: Ingleside Cogeneration begins commercial operation
Ingleside Cogeneration | Natural Gas Power Plant in Houston, TX
Mar 1, 2017: Ingleside Ethylene cracker starts operations
Ingleside Ethylene starts up ethylene cracker in Texas - Chemical Engineering | Page 1
Jan 2, 2026: Berkshire Hathaway completes OxyChem acquisition
Berkshire Hathaway completes $9.7B OxyChem acquisition | Manufacturing Dive