"But the oil extracted in Venezuela is very heavy and hard to refine and then sell to other countries. Venezuela needs to first mix its heavy oil with lighter t

"But the oil extracted in Venezuela is very heavy and hard to refine and then sell to other countries. Venezuela needs to first mix its heavy oil with lighter types of crude to balance out the quality, according to Nilofar Saidi, an oil market analyst at ClipperData." http://money.cnn.com/2016/02/03/news/economy/venezuela-imports-american-oil/ http://money.cnn.com/2016/02/03/news/economy/venezuela-impor...