U.S. 'dirty oil' imports set to triple

NEW YORK (CNNMoney) -- U.S. imports of what environmentalists are calling "dirty oil" are set to triple over the next decade, raising concerns over the environmental impact of extracting it and whether pipelines can safely transport this Canadian oil.

Oil boomlet sweeps U.S. as exports and production rise

Looking at your heating bills or gas prices, you may find it surprising that the United States is enjoying a mini oil boom. It's producing more crude oil and, for the first time in decades, has become a net exporter of petroleum products such as jet fuel, heating oil and gasoline.