Venezuela’s oil production could feasibly fall to just 500,000 barrels per day by year’s end, according to the US State Department’s Special Envoy to Venezuela in a Wednesday hearing on the crisis-stricken Latin American nation on Wednesday.  The cause for the expected production declines, said Rep. Elliot Abrams, was the impact of US sanctions on Venezuela’s state-run oil company, PDVSA.   The crisis in Venezuela, of which its floundering oil industry is merely one part,  is “entirely manmade”,…