1. Farthest to the west
   - westernmost

See also: west

• oil colour
• oil company
• oil conservation
• oil filter
• oil furnace
• oil future
• oil geologist
• oil gland
• oil heater
• oil industry
• oil lamp
• oil meal
• oil nut
• oil of cloves
• oil of turpentine
• oil of vitriol
• oil of wintergreen
• oil paint
• oil painter
• oil painting
• oil palm
• oil pipeline
• oil pressure
• oil production
• oil pump