Marketwire.  Proponents of the Mackenzie Valley gas pipeline were awarded six licenses comprised of Shell Canada Limited (3 licenses), Imperial Oil Resources Ventures Limited (2 licenses) and ConocoPhilips Canada Resources Corp. (1 license).  Petroleum News by Eric Lidji (NGP Photo).  Alaska is one of the least attractive places in NorthAmerica for oil and gas investment, according to recent survey of international petroleum industry executives.  The State of Alaska ranked 83rd out of 136 jurisdictions while the federal Alaska Outer Continental Shelf ranked 78th, according to the Global Petroleum Survey by [...]