Technical Associates:

SpectrumITech Spectrum House, 56 Goldsworth Road, Woking, Surrey GU21 6LE, UK Tel: +44 1483 730201 Fax: +44 1483 762620 Email: sales@spectrumitech.co.uk Web: www.spectrumitech.co.uk

MicroSeismic 1300 W Sam Houston Parkway South, Suite 200 Houston, TX 77042 Tel: +1 713 781 2323 Fax: +1 713 781 2326 Email: wahab@saudigeophysical.com Web: www.microseismic.com

ARKeX Ltd. 1 Mercers Manor Barns, Sherington, Newport Pagnell, MK16 9PU, UK. Tel: ++44 (0) 1 908 613960 Fax: +44 (0) 1 908 518355 E mail: sherington@arkex.com Web: www.arkgeo.com