Related Clues:
- Works at the Guggenheim
- Shell business
- Flammable barrelful
- Big U.S. import
- Base of some paints
- Some portrait paints
- Source of wealth concealed by retired millionaires
- Goal in some drilling
- __ and vinegar dressing
- Big export of Saudi Arabia and Norway
- Well-produced stuff
- Restaurant dip for bread
- It's often priced by the barrel
- Whistler work
- Viscous liquid with a smooth, sticky feel