Repsol YPF, S.A. (NYSE:REP)explores for and produces crude oil and natural gas, refines petroleum, and transports petroleum products and liquefied petroleum gas (LPG). The Company retails gasoline and other products through its chain of gasoline filling stations. Repsol's petroleum reserves are in Spain, Latin America, Asia, North Africa, and the Middle East and United States.

Ecopetrol SA (NYSE:EC) is an integrated oil company. The Company owns interests in oil producing fields in the central area, south, west and north of Colombia as well as refineries, ports for fuel exports and imports on both coasts and the transporation network of pipelines and polyducts throughout the Colombian territory.

YPF Sociedad Anonima (NYSE:YPF) explores for, develops, and produces oil and natural gas in South America, the United States, and Indonesia. The Company also refines, markets, transports, and distributes oil and other petroleum products, petroleum derivatives, petrochemicals, and liquid petroleum gas.

Petrobras Energia Participaciones S.A. (NYSE:PZE) is one of the largest oil & gas companies based in Argentina. PZE is a holding company for Petrobras Energia S.A. The company operates within the entire oil and gas value chain, from exploration and production (E&P) to refining,transportation, purchasing, marketing and the distribution of oil & gas and oil-related products. PZE carries out its activities through Oil & Gas E&P, Petrochemicals, Refining and Distribution, and Gas & Energy.

Cosan Limited (NYSE:CZZ), through its subsidiaries, engages in the manufacture and sale of sugar and ethanol primarily in Brazil. It grows and processes sugarcane to produce standard sugars, including raw sugar, crystal sugar, organic sugar, and refined sugars. The company also produces and sells hydrous, anhydrous, and industrial ethanol, contributing 33% of revenue. Cosan has strategic relationships with PetroBras and Shell Brazil for ethanol and fuel. The company is based in São Paulo, Brazil.

Petroleo Brasileiro S.A. (NYSE:PBR) explores for and produces oil and natural gas. The company refines, markets, and supplies oil products primarily in Brazil. It sells surplus production in Brazil and foreign markets. PetroBras operates oil tankers, distribution pipelines, marine, river and lake terminals, thermal power plants, fertilizer plants, and petrochemical units. It is building new pipelines for ethanol distribution. The company is based in Rio de Janeiro, Brazil.