For more information on BDO’s international service offerings to the oil & gas industry, please contact one of the following practice leaders: Charles Dewhurst, Houston +1 713 548 0855 cdewhurst@bdo.com Sherif Andrawes, Perth +61 8 6382 4600 sherif.andrawes@bdo.com.au Michael Madsen, Vancouver +1 604 443 4732 MMadsen@bdo.ca Scott McNaughton, London +44 207 893 2371 scott.mcnaughton@bdo.co.uk ACKNOWLEDGMENTS BDO would like to thank the following individuals for their assistance with compiling and calculating the data for this study: Tom Ramos, Senior Manager, BDO Consulting; Paul Salinas, Associate, BDO Consulting; Andrea Stevens, Senior Assurance Manager, BDO USA; Dianne Van, Corporate Finance Analyst, BDO Australia; David Fenn, Assurance Manager, BDO USA; Nick Lenderman, Assurance Manager, BDO USA; Jose Rodriguez, Assurance Manager, BDO USA; Mike Silva, Assurance Manager, BDO USA .