Richardson was president of Sid Richardson Gasoline Co. in Kermit, Sid Richardson Carbon Company in Odessa, and Sid W. Richardson, Inc., in Fort Worth, and was a partner in Fort Worth-based Richardson and Bass Oil Producers.
Richardson pernah menjadi presiden Sid Richardson Gasoline Co. di Kermit, Sid Richardson Carbon Company di Odessa, dan Sid W. Richardson Inc., di Fort Worth, dan menjadi sekutu di persekutuan Richardson and Bass Oil Producers yang berbasis di Fort Worth.