Relationships Role Relationship Start Relationship End
Citigroup Financial Products Inc. Parent 5/1/2000 1/1/2001
Lewco Securities Corp. Subsidary 5/1/2000 1/1/2001
Wertheim Energy Corporation Subsidary 5/1/2000 12/28/2000
Ws Management Company, Inc. Subsidary 5/1/2000 12/28/2000
Arroyo Managers, L.L.C. Subsidary 5/1/2000 12/28/2000
Petrol Managers, L.L.C. Subsidary 5/1/2000 12/28/2000
Tobago Managers, Llc Subsidary 5/1/2000 12/28/2000
Schroder Securities (Switzerland) Limited Subsidary 5/1/2000 9/12/2000
Schroder Us Securities Limited Subsidary 5/1/2000 9/12/2000
Schroder Salomon Smith Barney Us Securities S.A. Subsidary 5/1/2000 8/17/2000