Chevron explores for, produces and transports crude oil and natural gas; refines, markets and distributes transportation fuels and lubricants; manufactures and sells petrochemicals and additives; generates power; and develops and deploys technologies that enhance business value in every aspect of the company's operations. Exposures may include methanol, sodium methylate, soybean oil, hydrochloric acid, citric acid, caustic soda, methyl esters, fatty acid, glycerin, surfactants, dyes, scents, dust, water, dirt, weather, temperature extremes, and medium to high noise levels.