Callon has entered into a definitive agreement to acquire the membership interests of Permian-based Percussion Petroleum Operating II in a cash and stock transaction valued at approx. $475 million and potential contingent payments of up to $62.5 million. Under a separate agreement, Callon agreed to sell all its assets in the Eagle Ford Shale to Ridgemar Energy Operating for $655 million in cash and potential contingent payments of up to $45 million.