Producing oil from shale or tar sands is dirtier than the dirtiest coal. This is particularly true for oil shale development, since an incredible amount of energy is required to squeeze a barrel of ...

Canada's Industry Minister, Tony Clement, has given PetroChina the go-ahead for a 1.7 billion US dollars acquisition of two oil sand projects. The deal gives the Chinese company 60% control of ...

Output is scheduled to start in 2013 and rise to 400,000 barrels a day in 2016 ... refineries to convert the area’s tar-like crude into lighter oil for export, Eulogio del Pino, PDVSA vice ...