Corbin Robertson Jr.
Robertson serves on the boards of the American Petroleum Institute and the national Petroleum Council. He used his large inherited oil fortune to start a coal investment and trading business. Robertson buys land where there are coal reserves, leases it to other mining companies, and collects royalties from the coal mined. By 2003 Robertson had amassed 21 billion toins of unmined coal reserves.
He attended the Koch Brothers' June 2010 secret conservative supporters retreat in Aspen Colorado.
Robertson spent at least $200,000 during the 2011-2012 federal election cycle.