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Supertopics:
Alternative Petroleum (Unconventional Oil)
Heavy Oil
Subtopics:
Tar Sands (Oil Sands)
Tar Sands Efficiency (Viability)
Tar Sands Use and Contaminate Lots of Water
Air Pollution from Tar Sands
Tar Sands Mining
Canada's Tar Sands
Tar Sands Miscellany
Venezuela's Orinoco Heavy Oil Deposits as Viable
big oil corporations threaten to leave Venezuela
web
Natalie Obiko Pearson
Associated Press
2007-04-29
Chavez - Venezuela has largest oil deposits
web
The Guardian
2006-04-03
DoE says Orinoco heavy oil profitable at $50
web
Meirion Jones
BBC Newsnight
2006-04-03