Oil pump jacks en route from Salinas to Los Angeles
How do oil pumps work?
The oil pump jack -- Canada
Alberta Oil Sands -- About
Canada's Oil Sands - Come see for yourself... (Part 1 of 2) -- CAPP
Canada's Oil Sands - Come see for yourself... (Part 2 of 2) -- CAPP
North Dakota Oil Boom -- Interview
with Lynn Helms, Director of North Dakota Department of Mineral Resources,
August 5, 2012 -- Platts
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