Corporate Overview The transfer agent and registrar for Hydril common stock is Mellon Investor Services, L.L.C. Stockholders who need assistance with their accounts or wish to eliminate duplicate mailings should call 800-635-9270 or write: Mellon Investor Services, L.L.C. 85 Challenger Road Ridgefield Park, NJ 07660 800-635-9270 or www.melloninvestor.com Copies of Hydril publications are available free of charge, please contact Hydril Investor Relations at 281-985-3493 or write: Sue Nutt, Investor Relations Hydril Company P. O. Box 60458 Houston, TX 77205-0458 or click here to request documents online Hydril Company Profile