Gran Tierra Announces Release Date for its 2018 Third Quarter Results, Conference Call and Webcast Details

Gran Tierra Energy Inc.

(“Gran Tierra”) (NYSE American:GTE) (TSX:GTE) (LSE:GTE),

announces that the Company will release its 2018 third quarter financial and operating results on Thursday, November 1, 2018, after market close. A conference call to discuss the 2018 third quarter results will be held at 11:00 a.m. Eastern Time (9:00 a.m. Mountain Time) the following day, Friday, November 2, 2018. Details of the conference call are as follows:

Date:	Friday, November 2, 2018
Time:	11:00 a.m. Eastern Time (9:00 a.m. Mountain Time)
North America:	[phone] (Toll-Free)
United Kingdom:	[phone]
International:	[phone]

Interested parties may also access the live webcast on the investor relations page of Gran Tierra’s website at www.grantierra.com. An archive of the webcast will be available on Gran Tierra’s website until November 9, 2018. In addition, an audio replay of the conference call will be available following the call until November 6, 2018.  To access the replay, dial toll-free 1-855-859-2056 (North America), or 1-404-537-3406 (outside of Canada and USA), conference ID: 8391157.

About Gran Tierra Energy Inc.

Gran Tierra Energy Inc. together with its subsidiaries is an independent international energy company focused on oil and natural gas exploration and production in Colombia.

Gran Tierra’s Securities and Exchange Commission filings are available on a web site maintained by the Securities and Exchange Commission at http://www.sec.gov and on SEDAR at http://www.sedar.com and UK regulatory filings are available on the National Storage Mechanism website at www.morningstar.co.uk/uk/nsm.

Contact Information

For investor and media inquiries please contact:

Gary GuidryChief Executive Officer

Ryan EllsonChief Financial Officer

Rodger TrimbleVice President, Investor Relations

[e-mail]