Production of crude oil and natural gas liquids averaged 12.26 million b/d. Total gas production reached 17.66 tcf. About 100 new fields were discovered, but apparently none were major finds. Major gain in oil reserves was in West Siberia. Major increase in gas reserves came from northern West Siberia and from the eastern Turkmen and western Uzbek republics. Significant exploration along the periphery of the North Caspian Basin. This basin may become an important producing region in the near future. Successful first finds in the eastern East Siberian Platform. Absence of significant discoveries in most basins of the European USSR. Increased efforts in offshore oil exploration.--Modified journal abstract.