Gran Tierra Energy Inc. Provides Operational Update

CALGARY, ALBERTA--(Marketwired - Jan 23, 2017) - Gran Tierra Energy Inc. ("Gran Tierra" or the "Company") (NYSE MKT:GTE)(GTE.TO), a company focused on oil and gas exploration and production in Colombia, is pleased to provide today an operational update. All dollar amounts are in United States ("U.S.") dollars, unless otherwise indicated.

During December 2016, Gran Tierra averaged working interest production before royalties ("WI") of 31,700 barrels of oil equivalent per day ("boepd"). During November 2016, the Company disposed of its interests in certain non-core and low operating netback assets. The WI production from the two blocks disposed was approximately 950 boepd (average for October 2016) and was not included in December 2016 production as a result of the disposition. Fourth quarter 2016 WI average production was approximately 31,000 boepd, which represents a 34 percent increase compared to fourth quarter 2015 production. Based on the midpoint of the Company's 2017 WI production guidance of 34,000 to 38,000 boepd, Gran Tierra is forecasting a 16 percent increase over fourth quarter 2016 production and a 33 percent increase over 2016 average WI production of approximately 27,000 boepd. Current WI production is approximately 32,000 boepd.

Gary Guidry, President and Chief Executive Officer of Gran Tierra, commented, "2016 was a transformational year building our Colombia focused portfolio and 2017 is expected to be transformational through execution. Our 2017 exploration capital budget of $85 to $95 million, as announced in December 2016, plans for 8 to 11 gross wells drilled over the course of 2017. These wells are planned to target multi-zone stratigraphic and structural prospects and are expected to test a significant portion of Gran Tierra's large prospective resource base. We have continued to capture learnings from drilling within our fields and maintain our low cost drilling operations as we move to new opportunities within our land blocks and test these exploration prospects. Similar to our rationalizing and selling non-operated positions in blocks to upgrade our asset portfolio, the Company has transferred commitments from non-prospective blocks and relinquished lands to upgrade our exploration lands. Our more focused portfolio, for both assets and exploration, is a higher working interest, operated set of blocks.

The recently acquired Acordionero field is meeting our expectations, and we expect it to average 8,000 - 9,000 barrels of oil per day ("bopd") during 2017. In addition, the water injection pilots in the Lisama A and C sands are expected to provide essential information required to pursue the Possible Reserves in Acordionero, with the first pilot predicted to be onstream by end of first quarter 2017. The Costayaco field is meeting expectations, and we have budgeted for an expansion of our natural gas-to-power capacity to handle increasing fluid production from the waterflooding and new production from the A Limestone. We have a two-well drilling program in Costayaco during first quarter 2017 to obtain open-hole logs and core samples of the A Limestone in pilot holes, which we expect to be followed by two horizontal wells to test the A Limestone's potential production capacity.