ABU DHABI NATIONAL OIL
ACRILSARDA
AGIP (N.A.M.E)
AGIP PETROLI
AGIP RAFFINAZIONE
ALEXANDRIA PETROLEUM
AMERYA PETROLEUM REFINING
ANIC
AOOT OMSK REFINERY
API
ARADET
CAIRO OIL REFINING
CHEMOKOMPLEX
CHIMICA MERIDIONALE
CHINA METALLURGICAL IMPORT& EXPORT
CHINESE PET.
CNTIC
CONDEA AUGUSTA
CPCIC
DAURA REF.
ENICHEM
ENICHEM ANIC
ENICHEM AUGUSTA
ESSO PAPPAS
ESSO SAPA
ESSOCHEM MEDITERRANEA
EXXON CHEMICAL MEDITERRANEA
FFCL
G A P
GARRONE
GETTY OIL
GOLFO
GPIC
HYDRO AGRI ITALIA
I.I.P.
I.R.O.M.
IBN RUSHD
IBN ZAHR
IBN ZAHR - SAUDI EUROPEAN PETROCHEMICAL
ICIP
INDENI PETROLEUM REFINERY
IROM
ISAB
ITALIA ENERGIA E SERVIZI
LIQUICHIMICA AUGUSTA
MCKEE/ESSO PAPPAS
MOBILCHIMICA
MONTECATINI EDISON
MONTEDIPE
MONTEDISON
MONTEPOLIMERI
MOTOR OIL (HELLAS)
N.I.O.C.
N.P.C. / FANAVARAN PET.CO.
NASR PETROLEUM
NIOC
OCP
ODESSA OIL REFINERY
OFFICINA MECCANICA SARDA
P.I.C.
PETROBEL
PETROCHEMIA PLOCK
PETROCOKE
PETROQUIMICA CANGREJERA
PETROQUIMICA MORELOS
POLIMERI EUROPA
PRAOIL
PROFERTIL
R.O.L.
RADICI CHIMICA
RAFFINERIA DEL PO
RAFFINERIA DI MILAZZO
RAFFINERIA DI ROMA
RAFFINERIA DI ROMA / FINA
RAFFINERIA SICILIANA
RHODIATOCE
S.P.I.
SABIC SERVICES
SAFCO
SANQUIRICO
SARAS
SARDA AROMATICI
SAROM
SHCHEKINOAZOT
SCOP
SELM
SICEDISON
SINCAT
SIPCA/ EUROFILTRI
SIR
SIREX
SIRON
SNIA VISCOSA
STANIC
STATOIL
SUD ITALIA RESINE
SUEZ OIL PROCESSING
SUPER OCTANOS
SUPERMETANOL
SYRIAN ARAB REP.
TERNICHIMICA
THE BEST OIL
VETROCOKE