Related Clues:

• Old Houston gridder
• Carrier of crude
• Panama divider
• Canadian NHLer
• Gondola's route
• OPEC vessel
• Crude craft
• Manmade waterway
• Ottawa Region's Rideau______
• Fuel-carrying vessel
• Structure with locks
• Strait of Hormuz vessel
• Machinery maintainer
• Place for a low bridge
• It may have locks on it