Business: Ecopetrol is Colombia's largest integrated oil & gas company, where it accounts for more than 60% of total production. They are one of the top 50 oil companies in the world and the fourth largest oil company in Latin America. The Company is also involved in exploration and production activities in Brazil, Peru and the United States Gulf Coast and owns the main refinery in Colombia, most of the network of oil and multiple purpose pipelines in the country, petrochemical plants, and an increasing participation in biofuels.