CORPORATE EVENT: Southwestern Energy Company

Clearing House Advisory Notices

To	Clearing Member Firms
From	CME Clearing
Subject	CORPORATE EVENT: Southwestern Energy Company
Notice Date	2008-03-25
Notice Number	08-55
Effective Date	2008-03-26
Southwestern Energy Company (“SWN”) has announced a 2 for 1 stock split. The Ex-distribution Date is Wednesday, March 26, 2008. The Payable Date is March 25, 2008. The Record Date is March 14, 2008. For the full text of this advisory...