Part I designated owners

BP Petroleum Development Limited, whose registered office is at Britannic House, Moor Lane, London EC2Y 9BU.

BP Petroleum Development (Alpha) Limited, whose registered office is at Britannic House, Moor Lane, London EC2Y 9BU.

Brabant Petroleum Ltd., whose registered office is at Unit S, Paddock Wood Distribution Centre, Paddock Wood, Kent TN12 6UU.

Clyde Petroleum (Buchan) Ltd., whose registered office is at Coddington Court, Coddington Ledbury, Hereford and Worcester HR8 1JL.

Goal Petroleum p.l.c., whose registered office is at New Bond Street House, 1 New Bond Street, London W1Y 9PE.

Monument Exploration and Production Limited, whose registered office is at 17 Bedford Square, London WC1B 3JA.

Shenandoah Expro Ltd., whose registered office is at 44 Davies Street, London W1Y 2BL.

Transworld Petroleum (U.K.) Limited, whose registered office is at New Bond Street House, 1 New Bond Street, London W1Y 9PE.