Petrochemical Plants in Freeport, Texas
Last reviewed: 2026-05-01
The Freeport, Texas petrochemical cluster in Brazoria County includes some of the largest chemical manufacturing facilities on the Gulf Coast. Dow Freeport is the anchor site and the largest Dow manufacturing complex globally, producing polyethylene, ethylene oxide, chlorine, and caustic soda. Phillips 66 Sweeny operates an integrated refinery and petrochemical complex nearby. Olin Corporation manufactures chlorine and caustic soda in Freeport. BASF operates chemical manufacturing facilities in the area. The cluster benefits from Brazos River access and proximity to the Houston labor and logistics market.
Key Facts
Dow Freeport
Dow Freeport is the largest manufacturing site in the Dow portfolio globally, spanning over 5,000 acres. The complex produces dozens of chemical products across multiple production units. ExecGraph tracks approximately 3,560 contacts at Dow Freeport. The facility has operated since the 1940s and continues to receive significant capital investment for capacity expansion and modernization.
Phillips 66 Sweeny
The Phillips 66 Sweeny complex in nearby Old Ocean includes a refinery with approximately 265,000 barrels per day capacity and integrated petrochemical operations including olefins and polyethylene production. The refinery feeds the chemical plant with naphtha and other feedstocks, creating an integrated value chain.
Olin and BASF
Olin Corporation operates a chlor alkali facility in Freeport producing chlorine, caustic soda, and related products. BASF maintains chemical manufacturing operations in the greater Freeport area. These facilities add to the density of the petrochemical cluster and create additional vendor opportunities beyond the two anchor sites.
Market Characteristics
The Freeport cluster is located approximately 60 miles south of Houston in rural Brazoria County. Despite its distance from the Ship Channel, the cluster represents a significant market due to the scale of operations, particularly Dow Freeport. Vendors typically serve Freeport alongside Houston Ship Channel clients, though the distance requires planning for service response times.
Frequently Asked Questions
What is the largest facility in the Freeport cluster?
Dow Freeport is the largest facility, spanning over 5,000 acres with dozens of production units. It is the largest manufacturing site in the global Dow portfolio.
Is Freeport near Houston?
Freeport is approximately 60 miles south of Houston along the Texas coast. It is accessible via State Highway 288, which connects to the Houston metropolitan area. Many vendors serve both markets from a Houston area base.
What products are made in Freeport?
The Freeport cluster produces polyethylene, ethylene oxide, chlorine, caustic soda, epichlorohydrin, and numerous other chemicals. Phillips 66 Sweeny produces transportation fuels and olefins from its integrated complex.
Related Intelligence
Get the Contacts Behind These Roles
ExecGraph maps 30,000+ verified contacts across Gulf Coast refineries and petrochemical facilities. Names, titles, career history, and org chart position behind a single login.