Home energy provider offers heating oil, propane, kerosene, diesel, gasoline, and natural gas products.

Chevron Corporation oil and gas brand operating in the Asia-Pacific, Africa and Middle East regions.

Global enterprise engaged in energy exploration and harnessing. Site presents information on brands and products, worldwide operations, and corporate responsibility.

Oil and gas company's website presents news, product and brand details, and corporate and career information.

Official website of the world's largest integrated oil company. Presents news, corporate particulars, product and service details, and information on career opportunities.

Motor oil brand owned by the Texaco Oil Company. Product details, information on business opportunities, and corporate contacts.

Integrated oil and gas company's website provides information on business units, operating highlights, and investor relations.

Publicly-traded oil and gas company based in Houston, Texas. News, contacts, and information on corporate values and investor relations.

Crude oil and natural gas refining, marketing and transportation company located in Houston, Texas.

Presents information on investor relations, corporate governance and responsibility, and business operations.

New York based public company engaged in the exploration, manufacture, and marketing of petroleum-based products such as automotive gasoline and oils.

San Antonio, Texas based petrochemical company's website presents information on the products offered, investor relations, and community service.