Sept 21 (Reuters) - Gran Tierra Energy Inc GTE.TO :
* Announces new, increased credit facility
* Through unit, co has secured a credit facility of up to US$500 million with a
current borrowing base of US$200 million
* Says facility replaces Gran tierra's previous credit facility that had a
borrowing base of US$150 million
* Says new facility has a final maturity date of September 2018
* Says current borrowing base of US$200 with the next redetermination in May of
2016
* Source text for Eikon ID:nMKWMTss8a
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