欧佩克将原定于11月18日在奥地利首都维也纳举行的特别会议提前至10月24日，
B-organization I-organization I-organization O O O O O O O O O O O B-address I-address I-address I-address I-address I-address I-address I-address O O O O O O O O O O O O O O O O O