Allstar Oxygen Service Inc

Shell Martinez Refinery refines and markets gasoline and other petroleum products under the Shell and Texaco brand names throughout the West and Midwest. The company serves several Shell- and Texaco-branded retail outlets. Founded in 1915, Shell Martinez Refinery has the capabilities to convert more than 150,000 barrels of crude oil daily into various types of products. It produces gasoline, jet fuel, diesel, petroleum coke, industrial fuel oils, liquefied petroleum gas, asphalt, sulfur and lubricants. The company maintains advance processing equipment and environmental protection facilities. It also has shipping and receiving terminals for marine, rail and truck cargoes, as well as maintenance shops and quality assurance laboratories. Shell Martinez Refinery has a work force of more 700 employees.

General Chemical, based in Pittsburg, is a leading provider of industrial chemicals and services, catering to customers across North America and globally. With a focus on quality and reliability, General Chemical, a division of Chemtrade, offers a wide range of chemical solutions to meet the diverse needs of industries worldwide. Generated from their website's infomation

Texaco Chevron s motto is human energy. The company originated when Texaco completed its merger with Chevron in 2001. It sells gasoline under the Texaco brand in the United States. Texaco Chevron also operates Star Mart convenience stores throughout the United States. Its additional products include Texaco-branded lubricants, additives and antifreeze, as well as marine and aviation fuels to clients throughout the world. The company has service stations in Belgium, Luxembourg, Netherlands, the United Kingdom and the United States. Texaco Chevron maintains a facility in San Ramon, Calif.