GRAN TIERRA ENERGY INC COM STK USD0.001 (CDI) revenue for the last year amounted to 500.36 M GBP, the most of which — 500.36 M GBP — came from its highest performing source at the moment, Oil and Natural Gas, the year earlier bringing 588.22 M GBP. The greatest contribution to the revenue figure was made by Colombia — last year it brought GRAN TIERRA ENERGY INC COM STK USD0.001 (CDI) 500.36 M GBP, and the year before that — 588.22 M GBP.