2008

• ONEOK, Inc. 2.7.08
• Omnicom Group Inc. 2.4.08
• OGE Energy Corp. 1.16.08

2007

• Oshkosh Truck Corp. 11.29.07
• Occidental Petroleum Corp. 11.21.07
• Order Reliant Dismiss 2.27.07

2006

• Oracle Corp. 6.20.06
• OfficeMax Inc. 2.13.06

2004

• Ohio Casualty Corp. 1.23.04
• Otter Tail Corp. 1.12.04

1993

• Old Nat'l. Bancorp 3.26.93