Related Clues:

• Haulers on highways
• Oil field machinery
• Manipulates a contest
• Pre-fixes?
• Oil machinery
• Fixes wrongly?
• Offshore drilling sites
• Tampers with, as an election
• Fixes, as a ball game
• Fixes on the sly
• Oil equipment
• Weigh station lineup
• Fixes, as a contest
• Dishonestly fixes
• Offshore oil drillers