ALAADIN MIDDLE EAST LTD

BG GROUP

BOTAŞ

BP INTERNATIONAL E&P

CHATHAM HOUSE

CHEVRON

DANA GAS COMPANY

ENERGY OPERATIONS TURKEY LLC

EON RUHRGAS

ERA ENERJİ

EURO-ARAB MASHREQ GAS CO-OPERATION

GAZ DE FRANCE

GENEL ENERJİ

GULFSANDS PETROLEUM PLC

GÜNEY YILDIZI PETROL ÜRETİM, SONDAJ, MÜTH.ve TİC. A.Ş.

MAERSK OIL

MEKE

MINEKS INTERNATIONAL
MOODY INTERNATIONAL

NATIONAL IRANIAN GAS COMPANY

NATIONAL IRANIAN SOUTH OIL COMPANY

NORTHERN OIL COMPANY - IRAQ

OMV E&P

PERENCO
DIZEL TURBO
FUGRO
MTA – GENERAL DIRECTORATE OF MINERAL RESEARCH & EXPLORATION
ATIKOL
DOĞAN ENERJİ GRUBU
PETROBRAS
PEMI

PETOIL

PETROLEUM GEOLOGICAL ANALYSIS

RESEARCH INSTITUTE OF PETROLEUM INDUSTRY

SHELL

STATOILHYDRO INTERNATIONAL E&P

SYRIA OIL MARKETING COMPANY (SYTROL)

SYRIAN COMPANY FOR DISTRIBUTION OF GAS

SYRIAN GAS COMPANY

SYRIAN PETROLEUM COMPANY

TANGANYIKA OIL COMPANY

TEKFEN İNŞAAT VE TESİSAT

TOREADOR TURKEY LTD

TPAO

TPIC

TTOPCO

ZORLU ENERJİ