Related Clues:

• Heat source
• Certain cartel's concern
• Well-supplied resource?
• Barrel contents
• Peanut product
• Black gold
• Engine lubricant
• Driller's quest
• Anointing substance
• See 15-Down
• Slick makeup
• Word with can or pan
• Cooking fat
• It floats on water
• Wildcatter's find