For the past 40 years those in the US have been regaled by politicians about the need to rid the nation of the dependency on foreign oil all the while operating a foreign policy built solely around the securing and maximizing of the flow of said foreign oil to the US.  Now that Energy Return on Energy Invested (ERoEI)  has become a topic of real interest and the structural price for a barrel of oil equivalent (BOE) is firmly in the $100 per barrel range the unlocking of various unconventional or tight supplies of oil and gas are not ...