Solutions An oil reservoir has 9 entries with similar clues
- damWater reservoir creator
- waterWhat fills a reservoir
- rainsReservoir fillers
- inkwellReservoir for writing fluid
- cisternIsland seabird seen below Cape reservoir?
- rapeseedType of oil also called canola oil
- catchmentThe area from which rainfall flows into a river, lake, or reservoir
- oort-cloudReservoir of comets surrounding solar system
- harveykeitelAmerican actor whose films include Taxi Driver , Reservoir Dogs and The Piano