Gran Tierra Energy Inc. Announces Increase in 2016 Exploration Capital Budget, Hedging Program, Credit Facilities Update and an Operations Update

CALGARY, ALBERTA--(Marketwired - May 31, 2016) - Gran Tierra Energy Inc. ("Gran Tierra" or the "Company") (NYSE MKT:GTE)(GTE), today announced the following (all dollar amounts are in United States dollar unless otherwise stated):

Increase in Base 2016 Capital Budget

Gran Tierra is increasing its base 2016 capital budget by $33 million to $43 million to a revised total of $140 million to $150 million. The Company's previously announced base capital budget was $107 million.

The increased capital investment will be entirely directed at exploration in Colombia and will allow the drilling of two additional, 100% working interest ("WI") exploration wells, including one additional N-Sands exploration well in the Putumayo Basin. The increased budget will also allow for the acquisition of additional 2D seismic in the Sinu Basin, and accelerated lease construction and environmental impact assessment work in preparation for the Company's 2017 Colombian exploration drilling program.

Gran Tierra's 2016 production guidance remains unchanged. The 2016 average WI production before royalties from the Company's assets in Colombia and Brazil is expected to average approximately 27,500 to 29,000 barrels of oil equivalent per day ("BOEPD"), representing an increase of 20% over our 2015 average production of 23,400 BOEPD. The 2016 production guidance includes 900 to 1,000 BOEPD of production from the Company's assets in Brazil.

Hedging Program

To provide downside oil price protection for the next 12 months, Gran Tierra has transacted Brent oil hedges as follows (US$/bbl):

Term

Volume
BOPD

Sold
Put

Bought
Put

Sold
Call

Premium

June 1, 2016 - May 31, 2017

10,000

$35.00

$45.00

$65.00

$1.25

Credit Facilities Update

The committed borrowing base under Gran Tierra's credit facility has been modestly reduced from the previous $200 million to $185 million, with $160 million readily available and $25 million subject to the consent of all lenders. Recognizing the challenging commodity price environment and the impacts on the estimated value of producing reserves, Gran Tierra management is pleased with the continued support of the lending banks to maintain liquidity which complements operating cash flow and supports future growth. The credit facility is currently undrawn and the maturity date remains the same at September 21, 2018.

Operations Update

Drilling lease construction is underway for the Cumplidor-1 exploration well in the PUT-7 block, which the Company continues to expect to spud in early third quarter 2016. This well is expected to be followed immediately by the Alpha-1 exploration well from the same drilling pad. These wells are the first to test the N-Sands exploration play in PUT-7 in the Putumayo Basin, which Gran Tierra believes is highly prospective and expects to lead to long term reserve and production growth.