Tankers carrying nearly two months worth of Venezuelan oil output are stuck at sea as global refiners shun the nation's crude to avoid falling foul of U.S. sanctions.
This is according to industry sources, PDVSA documents and shipping data.
Washington is tightening sanctions to cut Venezuela's oil exports and deprive the government of socialist President Nicolas Maduro of its main source of revenue.
The OPEC member's exports are hovering near their lowest levels in more than 70 years and the economy has collapsed, but Mr. Maduro has held on - to the frustration of the administration of President Donald Trump.
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