Premium buyers are driving flow in Forest Oil options today, picking up several thousand near term out of the money calls and puts that ahead of earnings next week. Just before noon a sweep router was used to pay 35cents for 2000 May 15 puts, in a trade that appears to close some of the existing OI at the strike. Buyer also paid 15c for nearly 2000 May 20 calls near the same time, shown by ISE data to be opening customer.