Saudi Aramco Tatweer Petroleum Saino Saudi Gas Ltd. Nobel Oil
Abraj Energy Services HRTC Drilling Kardoos Holding Dewan Drilling ............
Archer - The Well Company Allis Chalmers Hydarsun Lee Energy Services ........
Investcorp Gulf Capital Highline Capital Jana Partners ........
McKinsey & Co. Boston Consulting Group Price Waterhouse Coopers Ernst & Young ......
Nogaholding TAQA Arabie Saoudite.
