MR. DAVID M. TUBBS has over 39 years of industry experience predominantly in oilfield operations. He has worked in most major basins of the United States, Central and Northern North Sea and the North Atlantic. He started his career in 1980 with Standard Oil of Ohio (Sohio) and continued with BP after the merger. From there David worked a variety of roles with Louisiana Land and Exploration (LL&E), Burlington Resources, and Leor Exploration before starting his consulting career with his own firm Liam Engineering LLC. David has extensive experience in all types of drilling, completion, and workover operations, particularly HPHT/sour service drilling and floating drilling. He oversaw the drilling of Burlington's Deep Bossier field development in East Texas and implemented a 'slim-hole' drilling program utilizing expandable tubulars which saved over $1MM per well. Prior to this role he was the Burlington project manager for the construction of the Ensco 7500. He oversaw the procurement and factory acceptance testing of most of the primary equipment purchased for the rig. As an independent consultant he has enjoyed working a wide variety of areas including horizontal drilling and completions in addition to exploration/appraisal drilling in central Idaho. David graduated with high honors from New Mexico Institute of Mining and Technology in May 1980 with a BS in Petroleum Engineering. He is a member of SPE and a registered professional engineer in Texas.