SUN <SUN> TO ACQUIRE MORE OF WYOMING FIELD <Wolverine Exploration Co> said substantially all the material aspects of the agreement to sell its 8.95 pct working interest in the Luckey Ditch unit in Unita County, Wyo., to Sun Co Inc have been satisfied. Closing of the transaction is scheduled for June eight, Wolverine said. The company agreed to sell its interest for 7,250,000 dlrs, subject to downward adjustment for certain title and state requirements. Sun already owns a 44 pct working interest in the unit.