UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 26, 2013

GRAN TIERRA ENERGY INC.

(Exact name of Registrant as specified in its charter)

Nevada	98-0479924
(State or other jurisdiction of incorporation)	(I.R.S. Employer Identification No.)

Commission file number: 000-34018

300, 625 - 11th Avenue S.W.

Calgary, Alberta, Canada T2R 0E1

(Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (403) 265-3221

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.07. Submission of Matters to a Vote of Security Holders

Gran Tierra Energy Inc. held its Annual Meeting of Stockholders on June 26, 2013. The following is a brief description of each matter voted upon at the Annual Meeting, as well as the final tally of (1) the number of votes for or withheld for each director, (2) the number of votes for, against or abstaining for each other matter, and (3) the number of broker non-votes with respect to each matter. A more complete description of each matter is set forth in the Gran Tierra Energy’s definitive proxy statement filed with the Securities and Exchange Commission on April 30, 2013 (the “Proxy Statement”).

1. Gran Tierra Energy’s stockholders elected each of the directors proposed by Gran Tierra Energy for re-election, to serve until Gran Tierra Energy’s 2014 Annual Meeting of Stockholders or until his respective successor has been elected and qualified. The tabulation of votes on this matter was as follows:

Nominee	Shares Voted For		Shares Withheld
Dana Coffield		148,600,018		364,938
Jeffrey Scott		148,628,693		336,263
Verne Johnson		137,304,596		11,660,360
Nicholas G. Kirton		148,111,893		853,063
J. Scott Price		87,208,000		61,756,956
Gerald Macey		148,135,418		829,538

There were 30,633,331 broker non-votes for this proposal.

2. Gran Tierra Energy’s stockholders approved, on an advisory basis, a resolution approving the compensation of Gran Tierra Energy’s named executive officers, as disclosed in the Proxy Statement. The tabulation of votes on this matter was as follows:

Shares voted for:	132,127,053
Shares voted against:	16,590,423
Shares abstaining:	247,480
Broker non-votes:	30,633,331

4. Gran Tierra Energy’s stockholders ratified the selection of Deloitte LLP as the independent registered public accounting firm of Gran Tierra Energy for its fiscal year ending December 31, 2013. The tabulation of votes on this matter was as follows:

Shares voted for:	179,276,479
Shares voted against:	154,997
Shares abstaining:	166,811
Broker non-votes:	0

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: June 27, 2012		GRAN TIERRA ENERGY INC.
	By:	/s/ David Hardy
		Name:	David Hardy
		Title:	General  Counsel, Vice President, Legal and Secretary