Part I designated owners

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

Amoco (U.K.) Exploration Company Ltd., whose principal place of business in the United Kingdom is at Amoco House, West Gate, Ealing, London W5 1XL.

Britoil p.l.c., whose registered office is at 301 St. Vincent Street, Glasgow G2 5DD.

Chevron U.K. Offshore Exploration Company Ltd., whose registered office is at 2 Portman Street, London W1H 0AN.

Conoco (U.K.) Ltd., whose registered office is at Park House, 116 Park Street, London W1Y 4NN.

Enterprise Oil plc, whose registered office is at 5 Strand, London WC2N 5HU.

Mobil North Sea Ltd., whose principal place of business in the United Kingdom is at Mobil Court, 3 Clements Inn, London WC2A 2EB.

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