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SHELL PETROLEUM AL-FURAT PETROLEUM COMPANY SYRIAN PETROLEUM COMPANY KUWAIT OIL COMPANY ONGC, INDIA AGOCO, LIBYA TOTAL, LIBYA KHALDA PETROLEUM COMPANY, EGYPT PETROBEL, EGYPT GENERAL PETROLEUM COMPANY OF EGYPT QARUN PETROLEUM COMPANY, EGYPT AGIBA PETROLEUM COMPANY, EGYPT NNPC, NIGERIA NPDC, NIGERIA WINTERSHAL, GERMANY TOWN GAS, EGYPT GULSANDS PETEROLEUM, UNITED KINGDOM PETEROCANADA, UNITED KINGDOM
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