In May 2016, the government proposed an amendment to Law 767 to extend production contracts of oil and gas corporations willing to commit a minimum to $350mn to exploratory drilling or at least $500mn for exploration and production. The amendment is rolling back one of the major tenets of the sector’s 2006 partial nationalisation. In 2012, YPFB awarded exploration concessions to Petrobras (nearly 100,000-hectare area in the department of Santa Cruz) and BG Group, 453,000 hectares in Chuquisaca and Tarija. However, five regions put out to tender by the Bolivian government, with licences for Madre de Dios, La Guardia and Alegria going un-awarded in the international round (YPFB Chaco later picked them up). Some companies are willing to invest in the country’s below-ground potential despite the risks, although investment is likely to remain well below the country’s potential.