Sierra fuels l.p.Logo Design Contest Logo Design Contest Contests / Sierra fuels l.p. Sierra fuels l.p. has selected their winning logo design. For $375 they received 79 designs from 18 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by luckymac Return to Contest Return to Contest Prefers others. #6 Prefers others. #5 Prefers others. #4 Discussion No comments yet.