Oil and Gas Companies

• Exploration and Production
• Pipelines
• Refining

• Caltex  - Chevron Corporation oil and gas brand operating in the Asia-Pacific, Africa and Middle East regions.
• Chevron  - Global enterprise engaged in energy exploration and harnessing. Site presents information on brands and products, worldwide operations, and corporate responsibility.
• ConocoPhillips  - Oil and gas company's website presents news, product and brand details, and corporate and career information.
• Exxon Mobil  - Official website of the world's largest integrated oil company. Presents news, corporate particulars, product and service details, and information on career opportunities.
• Frontier Oil Corporation  - Company information presented includes news, employment opportunities, financial and operating reports, and product and marketing details.
• Havoline  - Motor oil brand owned by the Texaco Oil Company. Product details, information on business opportunities, and corporate contacts.
• Hess Corporation  - Integrated oil and gas company's website provides information on business units, operating highlights, and investor relations.
• Marathon Oil Corporation  - Publicly-traded oil and gas company based in Houston, Texas. News, contacts, and information on corporate values and investor relations.
• Marathon Petroleum Company LLC  - Crude oil and natural gas refining, marketing and transportation company located in Houston, Texas.
• Murphy Oil Corporation  - Presents information on investor relations, corporate governance and responsibility, and business operations.
• Oronite  - Fuel and lubricant additive products company operated as a subsidiary of Chevron Corporation.
• Paralux  - Praffinic process oils produced from all-hydroprocessing technology that lowers aromatic content. By Chevron.
• Sunoco  - Information on investor relations, jobs and careers, stations, environment and safety policies, and consumer products and services.
• Texaco  - New York based public company engaged in the exploration, manufacture, and marketing of petroleum-based products such as automotive gasoline and oils.
• Valero Energy Corporation  - San Antonio, Texas based petrochemical company's website presents information on the products offered, investor relations, and community service.