October 4, 2005	Pioneer Gives Update On Pogo Option
September 27, 2005	Pioneer Files Form 15-12G; Terminates Registration Of Stock with SEC
September 19, 2005	Shareholders Approve Deregistration
August 15, 2005	Pioneer Gives Update on Going Private and POGO Option
May 6, 2005	Pioneer Oil and Gas Announces "Going Private" Transaction to Reduce Compliance Costs
February 22, 2005	Pioneer Closes On First Phase of Central Utah Play
January 28, 2005	Pioneer Sells Central Utah Play; Yankee Results