RADNOR, Pa.–(BUSINESS WIRE)–Preferred Proppants, LLC (“Preferred Sands” or “Preferred” or the “Company”) today announced that it has appointed David S. King to its Board of Directors. Mr. King, who currently serves as a member of the Investment Committee for Sheridan Production Company, LLC, which oversees investment decisions and strategic planning, previously served as a Director and Chairman of the Compensation and Governance Committee for Seventy Seven Energy, Inc. Prior to retiring in Ap
