Related Clues:

• Fracking material
• Rock that's "fracked"
• Excavated area
• Kill a source of minerals
• Mud, after compaction
• Something fracked in fracking
• *Sedimentary rock
• Expensive car dumped in dock is object of pursuit
• Source of gas market includes hydrogen
• Hunted animal in deep pit
• Fracking target
• Victim in pit
• Fuel oil source
• Game is mine
• Rock that's fracked