Part I DESIGNATED OWNERS OF PLATFORM APPARATUS AND RISER

Amerada Hess Ltd., whose registered office is at 2 Stephen Street, Tottenham Court Road, London, W1P 1PL.

Amoco (U.K.) Exploration Company, whose principal place of business in the United Kingdom is at Amoco House, West Gate, Ealing, London, W5X 1XL.

Esso Exploration and Production UK Ltd., whose registered office is at Esso House, Victoria Street, London, SW1E 5JW.

Gas Council (Exploration) Limited, whose registered office is at Rivermill House, 152 Grosvenor Road, London, SW1V 3JL.

Shell U.K. Limited, whose registered office is at Shell-Mex House, Strand, London, WC2R 0DX.

Texas Eastern North Sea, Inc., whose principal place of business in the United Kingdom is at Berkeley Square House, Berkeley Square, London, W1X 5LE.