In recent years, the US shale oil revolution has dealt a heavy blow to Canada's energy sector, ending two decades of rapid expansion and job growth in Canada's vast oil sands. Now, Canada expects its shale oil fields to repair the economic loss. Canada is the first country outside the United States to develop shale oil in large scale, which already accounts for 8 percent of Canada's total oil production. China, Russia and Argentina also have ample reserves of shale oil, but have yet to overcome the obstacles to full commercial development. Canada, in contrast, can provide the oil companies many advantages when the United States started its shale oil revolution: many private energy companies which are willing to take risks, deep capital markets, infrastructure which can be used for oil transportation, sparsely populated region with shale oil resources, and a large amount of water available to pump into the shale oil well. The total energy reserves of Duvernay and Montney include 500 trillion cubic feet of natural gas, 20 billion barrels of liquified natural gas and 4.5 billion barrels of oil, according to the Canada's National Energy Agency. "Montney is believed to contain about half of the recoverable resources in the oil sands region, and the Numbers are considerable," the industry said. Currently, Canada's shale oil and gas production is about 335, 000 b/d, and forecasts should rise to 420,000 b/d within 10 years.