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State Department issues Draft Supplemental Environmental Impact Statement on Keystone XL Pipeline: climate change impacts

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Comparison of proposed Keystone XL route to previously proposed project segment. The majority of the WCSB oil is considered a heavy crude oil, while Bakken crude is considered a light crude oil. Upgrading bitumen into SCO removes the light ends and heavy residuum ahead of transport to the refinery. Source: Draft SEIS.

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State Department releases Keystone XL Final Supplemental Environmental Impact Statement

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The earlier 2011 Final EIS was developed contemporaneously with the start of strong growth in domestic light crude oil supply from tight oil formations, such as those formations found in North Dakota’s Bakken region. Rising domestic crude production is predominantly light crude, and it has replaced foreign imports of light crude oil.

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