Related Clues:

• Mining matter
• Coarse resource
• Vein material
• Crater Lake st.
• Mountain yield
• Book on which 'There Will Be Blood' was based
• Nigerian export
• It can be crude or refined
• -lite of mine?
• Little squirt, maybe
• Recent commodity index booster
• Refiner's stuff
• Raw tramful
• Miners' gathering
• Assayer's sample