1. Department of Earth Sciences, Royal Holloway University of LondonEgham, Surrey, TW20 0EX, UK
2. Delta Energy Limited UKCentral Court, 25 Southampton Buildings, London WC2A 1AL, UK
3. BP Exploration, ICBTChertsey Road, Sunbury on Thames, Middlesex, TW16 7LN, UK
4. Repsol Exploración S.A.C/Méndez Álvaro, 44., 28045, Madrid, Spain
5. Fold-Thrust Research Group, School of Geosciences, University of AberdeenAberdeen AB24 3UE, UK