Why QEP Resources, Kosmos Energy, Helix Energy Solutions, and Core Laboratories All Fell Sharply in Early Trading Today

Why QEP Resources, Kosmos Energy, Helix Energy Solutions, and Core Laboratories All Fell Sharply in Early Trading Today
Reuben Gregg Brewer, The Motley Fool

Oil prices were lower today, but investors in the energy patch were watching OPEC and not liking what they saw.