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10 déc. 1921 - 1921 la primera concesión en la Amazonía ecuatoriana fue de 25.000 km2 y se otorgó en 1921 a Leonard Exploration Co.

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HISTORIA PETROLERA ECUADOR

ByPerez Sanchez

24 oct. 2018

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Date:

10 déc. 1921

Maintenaint

~ Il y a 103 ans

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