Founded in 1990, Exterran specializes in the design, fabrication, installation and maintenance of oil and gas production and processing facilities worldwide. It has expertise in compression technology, gas treatment, power generation and alternative fuels. The company's subsidiary, Belleli Energy, manufactures a range of critical process and production equipment for oil and gas producers and distributors, as well as independent exploration and energy companies. Exterran offers procurement, project management, construction, repair and maintenance services. It maintains an inventory of more than 12,000 natural gas compression units and provides production equipment on a rental basis. Exterran has operations in more than 30 countries worldwide and operates design, engineering and manufacturing facilities in the United States, the United Kingdom, Italy and the Middle East. The company is a subsidiary of Exterran Holdings, which has more than 10,000 employees in over 30 countries.