High Quality Content by WIKIPEDIA articles! Natural gas is one of the main energy sources and export products in Bolivia. Bolivia`s proved natural gas reserves are estimated to be 750.4 billion cu m (1 January 2009 est.), which ranks the country as 30th compared to others in the world and second behind only Venezuela in South America.. Most of these reserves are located in the eastern region of the country. The major export pipelines in Bolivia transport the gas to Argentina and Brazil.