The Arkoma Basin Woodford Shale is an incredible play-- it covers 1,500 square miles and has more than 40 rigs at work. Active operators include Newfield Exploration, Antero Resources, Continental Resources, Devon Energy, St. Mary Land & Exploration, PetroQuest Energy and XTO Energy. Simultaneous fracs are being tried in this play. Not only are wells fractured at the same time, the same segment of each lateral is fractured at the same time. That would be something to see! The volumes of water, sand and people are sensational. The technique appears to make a material difference in production volumes, and well results are strongly improved over conventional fracs. Average per-well costs in the play have been $5 million and recoverable reserves 3 Bcf, but operators appear to be successfully pushing well costs downward and ultimate recoveries upward. --Peggy Williams, Senior Exploration Editor, Oil and Gas Investor