Send our pseudo-progressive parties a strong message. Everyone knows that when supply increases, prices fall. It predicts that by there will be an increase in oilsands supply of more than two million barrels a day from its current level of three million barrels a day, taking total oilsands supply to five million barrels a day. Already a subscriber? They got us into this mess. Canadian oil sands have gained importance to the heavy oil market as the only source of material supply growth in the world for that type of crude.