Crude Oil Transportation & Storage

Pascagoula Refinery's Marine Terminal

Marine Tankers, Pipelines

Most of the crude oil refined at the Chevron Pascagoula Refinery comes from Central and South America. All the crude oil processed at the refinery – over 100 million barrels a year – arrives by marine tanker.

The crude oil is transported to the refinery wharf by 800 feet-long marine tankers managed by the Chevron Shipping Company.

Berths for crude oil marine tankers are situated along the refinery’s marine terminal, which is located on Bayou Casotte adjacent to the Port of Pascagoula’s marine facilities.

At the marine terminal, the cargo of crude oil is discharged through pipelines to storage tanks in the refinery. The marine terminal also has seven berths to load refined products. About 70 percent of all refinery products leave the refinery via ship or barge. Wharf operators receive ships from such places as Mexico and South America.

Spill & Air Protection

We take care to prevent oil spills at the marine terminal. Spill prevention efforts include continuous communication between the vessel and the terminal during cargo transfers and inspection for leaks of all loading hoses and arms during transfers. Also, spill drip pans are provided at potential leak areas, such as hose connection flanges.

Crude oil storage tank

We also take care to protect air quality at our marine terminal. In 1999, Chevron installed a Marine Vapor Recovery (MVR) system at the marine terminal to control vapors of volatile organic compounds (VOCs) that are generated during cargo loading.

The MVR system complies with the Clean Air Act’s regulations for control of VOC emissions from tank vessels that carry oil and chemicals in bulk.

Crude Oil Storage

Tanks, some with capacities over 390,000 barrels (over 16 million gallons), store the crude oil, as well as intermediate stocks (partially refined), finished products and chemicals.

The refinery’s 200 tanks have containment areas designed to hold their capacities in the event of a tank rupture. The system also diverts rainwater runoff from this area to the refinery’s effluent treating facilities to assure no traces of chemicals or hydrocarbons enter the local waters.

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