ASSOCIATION OF GEOPHYSICISTS OF SERBIAyugoslavia
BANKERS PETROLEUMcanada
BG Groupunited states of america
BP oman
CHEVRONkazakhstan
CHEVRONno details
DALMA ENERGY LLCunited arab emirates
DEN NORSKE OLJESELSKAP AS - DNOnorway
DIRECT PETROLEUM BULGARIA, LTDbulgaria
DOGAN HOLDING ENERGY GROUPturkey
DOLPHIN ENERGYunited arab emirates
EDISON GAS SPAunited states of america
EMIRATES NATIONAL OIL CO LTD (ENOC)united arab emirates
ENERGY COMMUNITY SECRETARIATaustria
ENIREPSA GAS LTDsaudi arabia
EON-RUHRGASunited arab emirates
EXXONMOBIL UPSTREAM VENTURESunited arab emirates
GAZPROM EP INTERNATIONALrussia
HUNT OIL COMPANYunited states of america
HYDROCARBON DEVELOPMENT INSTITUTE OF PAKISTAN, MINISTRY OF PETROLEUMpakistan
JEFFREY WATEROUS & COMPANYturkey
JKX OIL & GAS PLCunited kingdom
KULCZYK OIL VENTURES INCunited arab emirates
KUWAIT FOREIGN PETROLEUM EXPLORATION COkuwait
MAERSK OILqatar
MELROSE RESOURCES PLCunited kingdom
MERTY ENERGYturkey
MINISTRY OF ECONOMY, ALBANIAalbania
MND EXPLORATION & PRODUCTIONunited kingdom
MOL, HUNGARIAN OIL & GAS PLChungary
MUBADALA DEVELOPMENT COMPANYunited arab emirates
NADRA GROUP LIMITEDukraine
NATURAL RESOURCE AUTHORITY, JORDANjordan
OCCIDENTAL DEVELOPMENT COMPANYunited arab emirates
OMV PETROM S.A.romania
ONGC VIDESHiraq
ORYX GTLqatar
OTTO ENERGY LTDaustralia
PEL - PAKISTANpakistan
PETREL RESOURCES PLCireland
PETROBRAS ANGOLAturkey
PETROLEUM DEVELOPMENT OMANoman
PETROLEUM EXPLORATION & PRODUCTION AUTHORITY (PEPA)yemen
PT MEDCO ENERGI INTERNASIONAL TBKindonesia
RELIANCE EXPLORATION & PRODUCTION DMCCunited arab emirates
REPSOLspain
RJ ENERGYunited kingdom
RWE AGgermany
SAUDI ARAMCOsaudi arabia
SINOPEC INTERNATIONAL (MIDDLE EAST) FZEunited arab emirates
SUI SOUTHERN GAS COMPANY (SSGC)pakistan
SYRIAN PETROLEUM COsyria
TOTALunited arab emirates
TURKISH ASSOCIATION FOR ENERGY ECONOMICSturkey
TURKISH PETROLEUM INTERNATIONAL CO LTDturkey
WINTERSHALL HOLDING AGgermany