Tesoro Refining and Marketing Refinery, Pittsburg, California | Oil Infrastructure

Tesoro Refining and Marketing is an operational refinery located in Pittsburg, California, within Contra Costa County. The facility processes crude oil into various petroleum products, contributing to the fuel supply for the region. As part of the United States refining sector, it operates under federal and state environmental regulations. The refinery operates under the NAICS code 324110, indicating petroleum refining. In California, refineries must comply with the U.S. EPA Clean Air Act Refinery MACT standards and state air quality regulations. The facility's scale is typical for a medium to large refinery in the region, with a focus on producing gasoline, diesel, and other refined products. The facility is situated in an industrial area near the Sacramento-San Joaquin River Delta, which influences its environmental management practices. Refineries in this region must address air emissions, water discharge, and spill prevention to protect local ecosystems and communities. Tesoro Refining and Marketing plays a key role in the local economy and energy infrastructure.

The refinery is located in an industrial area near the Sacramento-San Joaquin River Delta, a sensitive estuarine environment. Operations must manage air emissions under California's stringent air quality rules and water discharges under the Clean Water Act. Spill prevention and response are critical due to proximity to waterways, with regulatory oversight from the U.S. EPA and California agencies.