Imports In 2012, Bhutan imported $12k in Petroleum oils, oils from bituminous minerals, crude, becoming the 0th largest importer of Petroleum oils, oils from bituminous minerals, crude in the world. At the same year, Petroleum oils, oils from bituminous minerals, crude was the 0th most imported product in Bhutan. Bhutan imports Petroleum oils, oils from bituminous minerals, crude primarily from: N/A.