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Oil and by-products. Amoco –Argentina–
. ANCAP –Uruguay–
. CEPSA –España–
. General Electric Plastics –España–
. Hidisa-Hinisa –Argentina–
. Panamerican Energy – Amoco/Bridas –Argentina–
. Pemex –México–
. Petrox –Chile–
. Profertil –Argentina–
. Repsol – YPF –Argentina–
. Repsol Petróleo –España–
. Transtexas Gas –Estados Unidos– |
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