Petrobras is the largest corporation in Brazil and operates in the following segments of the oil, gas and power sector: exploration and production, refining, commercialization and transportation, petrochemicals, distribution, biofuels, natural gas and electricity. Founded in 1953, Petrobras is Brazil's largest oil and gas company and one of the largest in the world. It remains a leading company in deep-water exploration technology. Present in 18 countries, it produced 2.5 million barrels of oil equivalent in 2013. Petrobras has 134 production platforms, 15 refineries with a processing capacity of 2.3 million barrels per day, and some 8,600 service stations throughout Brazil and abroad. Sales revenue reached $141.5 billion in 2013. Since 2006, Petrobras has been listed on the Dow Jones Sustainability Index. The company acknowledges its commitment to sustainable development in its vision, mission and strategic goals - growth, profitability and social and environmental responsibility.