Partial Client List

Addax
Aera Energy
Allied Energy
AMOG Consulting Inc.
Anadarko
Anglo-Suisse
Baseline Oil and Gas
BG Group
BHP Billiton
BP
Burk Royalty
Cairn Energy
Callon
Cepsa
CGGVeritas
Challenger Minerals
Chevron
Chevron ETC
CIECO Energy
Cobalt
Concho Resources
ConocoPhillips
Constellation Energy
Continentoil
Daleel Petroleum
Davis Offshore
Deep Gulf Energy
DeepStar
Delta Hydrocarbons
Denali Oil & Gas
Devon Energy
Domain Energy
Dominion E&P
Dubai Petroleum
Dunn Exploration
EDG Consulting
El Paso
Elko
EnCana
ENI Petroleum
Energy Prospecting
Technology, Inc
ERT
Excel Expro Norge AS
ExxonMobil
Fairways Offshore Exploration
Fugro
Gas Authority of India Ltd.
The George R. Brown
Partnership, L.P.
Global Financial Investments
Golden Gate Petroleum
Govt. of Papua New Guinea
Halliburton
Hardy Oil & Gas
Harvest Natural Resources
Hess
Houston Energy
Hunt Oil
Hunt Petroleum
Husky
IHS Energy
InterOil
ION Geophysical
Corporation
Katana Energy Services
Kinder Morgan
Koch Pipeline
Linn Energy
LLOG
Maersk Oil
Manhattan Petroleum
Marathon
Mariner Energy
Marubeni
Max Petroleum
Maxus Energy
McMoRan Oil & Gas
MCX Exploration
Medco Energy
Meridian Resource and
Exploration
Merlon International
MitEnergy
Mitsui Oil Exploration
MOEX
Murphy E&P
Nautilus
Newfield Exploration
Nexen
NGL Associates
Nippon Oil E&P UK
Noble Energy
Occidental
Oman Oil Company
ORX Resources
Partex Services Corp.

Pemex
Petrobras
PetroCanada
PetroChina
Petrodex
Petrogas
Petrohawk
Petroleum Development Oman
Petronas Carigali
Petroprimo
Pioneer
Plains E&P
Pluspetrol
Prime Natural Resources
PTTEP
Pyramid Petroleum
Quad Energy
RAK Petroleum
Ramius
Reliance
Repsol YPF
Medco Energy
Meridian Resource and Exploration
Merlon International
MitEnergy
Mitsui Oil Exploration
MOEX
Murphy E&P
Nautilus
Newfield Exploration
Nexen
NGL Associates
Nippon Oil E&P UK
Noble Energy
Occidental
Oman Oil Company
ORX Resources
Partex Services Corp.
Pemex
Petrobras
PetroCanada
PetroChina
Petrodex
Petrogas
Petrohawk
Petroleum Development Oman
Petronas Carigali
Petroprimo
Pioneer
Plains E&P
Pluspetrol
Prime Natural Resources
Pyramid Petroleum
Quad Energy
RAK Petroleum
Ramius
Reliance
Repsol YPF
Royal Midas
RPSEA
Sanchez Oil & Gas
Santos
Sasol
Saudi Aramco
Schlumberger
Scotia Capital
Seneca Resources Corp.
Seven Generations Enterprises
Shell E&P
Shell Transportation
Sheridan Production Co.
Sinopec
Sipetrol
StatoilHydro
STL Energy
Stone Energy
Swift Energy
Talisman
Technical Petroleum Services
Ten Degrees North
Tethys Oil
Tetra Technologies
The George R. Brown Partnership
Transeuro Energy Group
Transworld
Trey Resources
UT Lands
Venoco
Venture Production
VICO Indonesia
Wagner & Brown
Whiting Petroleum
Williams Field Services
Woodside
Yuma