ENERGY

OPEC Nations’ Oil Sales Down Slightly: OPEC nations raked in nearly $140 billion from oil exports in 1991, only slightly down from the hefty sums earned a year earlier when prices soared during the Persian Gulf crisis, analysts estimate. “For OPEC, it was a good year,” said Peter Bogin, associate director of oil markets at Cambridge Energy Research Associates in Paris. Saudi Arabia, the world’s largest crude exporter, gained even more money from its oil sales last year than in 1990 when prices shot up after the Iraqi invasion of Kuwait. Bogin estimated the value of Saudi Arabia’s petroleum exports at $47.7 billion in 1991, compared to an estimated $39.7 billion for 1990.