Quartz Oil ExplorationLogo Design Contest Logo Design Contest Contests / Quartz Oil Exploration Quartz Oil Exploration has selected their winning logo design. For $275 they received 109 designs from 23 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by wingerusa Return to Contest Return to Contest Withdrawn New #26 Withdrawn New #25 Discussion No comments yet.