After Venezuela, Tar Sands no Quick Fix
http://www.reuters.com/article/reutersEdge/idUSN2741612020070705
By Jeffrey Jones and Scott Haggett - Analysis
CALGARY, Alberta (Reuters) - For Exxon Mobil Corp. and ConocoPhillips it may appear simple: shift efforts, people and resources to Canada's oil sands now that the oil majors have retreated from Venezuela. In reality, it's no simple matter.
The oil sands have their own set of risks: surging costs due to a squeezed labor force, technical complexity and a shrinking pool of attractive available properties.