4. Alpha Natural Resources ( ANR) Company Profile: Alpha Natural Resources is a supplier and exporter of metallurgical coal for use in the steel-making process. The company is also a major supplier of thermal coal to electric utilities and manufacturing industries. Paulson's Investment: Paulson bought 12 million shares of Alpha Natural during the first quarter, which was worth $712 million as of March 31. Alpha Natural has been a loser for Paulson's fund so far, falling more than 20% this year. Shares slid earlier this month after the coal supplier's first-quarter earnings release disappointed investors.