Dec 9 (Reuters) - Eco Oro Minerals Corp :
* Eco Oro files request for arbitration against Colombia
* Eco Oro - claim relates to co's dispute with Colombia related to "arbitrary, inconsistent and disproportionate state measures that have destroyed value of its investments"
* Says amount of such losses will be determined at a later stage in arbitration
* Eco Oro Minerals says filed a request for arbitration with World Bank's international centre for settlement of investment disputes against Colombia
* Says it is asserting its entitlement to recover losses to its investment resulting from Colombia's breaches Source text for Eikon: Further company coverage: