Cornerstone E&P Co.

Cornerstone E&P Co. has retained Meagher Oil & Gas Properties Inc. to sell interests in the Woodford shale in the Arkoma Basin in Oklahoma. The package includes an average 79% net revenue interest in more than 10,000 acres in the primary area in Hughes County plus an additional 2,200 net acres in Coal and Atoka counties. An active drilling program is in place with 150 net potential horizontal Woodford locations on 80-acre spacing. The primary target is the Woodford shale with numerous proven secondary target zones. One nonoperated Woodford horizontal well began producing in December, with one operated well in completion stage. A proprietary 3-D seismic shoot is in progress over a 21-square-mile area. The bid due date is April 17. The effective date is March 1. The closing date is May 19. Contact Jacque Semple, 918-481- 5900, ext. 221.