Western Surety Life Insurance Company

Western-Shamrock Corporation

Westerra 100 Windward Plaza, L.L.C

Westerra 300 Windward Plaza, L.L.C

Westerra Georgia Acquisition Corp

Westerra Management, L.L.C

Westerra Realty, L.L.C

Westerra Windward, L.L.C

Westex Communications, Llc

Westfork Business Park, L.P

Westgate Fabrics Inc

Westinghouse Security Systems

Westinghouse Security Systems, Inc

Westlake Longview Corporation

Westlake Polymers Corporation

Westlake Polymers Llc

Westlake Polymers Lp

Westland Life Insurance Company

Westmar, Inc

Westmark Development Corporation