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): November 16, 2016

GRAN TIERRA ENERGY INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware	001-34018	98-0479924
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

Suite 900, 520-3 Avenue SW
Calgary, Alberta, Canada
T2P 0R3

(Address of Principal Executive Offices) (Zip Code)

(403) 265-3221

(Registrant’s Telephone Number, Including Area Code)

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:

¨ 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 1.01 Entry into a Material Definitive Agreement.

On November 16, 2016, Gran Tierra Energy Inc. (the “Company”), Gran Tierra Energy International Holdings Ltd., as borrower, the Bank of Nova Scotia, Societe Generale, as administrative agent, and the lenders party thereto entered into the Fourth Amendment to the Credit Agreement (the “Fourth Amendment”). The Fourth Amendment amends the Credit Agreement, dated as of September 19, 2015, by and among the Company, Gran Tierra Energy International Holdings Ltd., the Bank of Nova Scotia, Societe Generale and the lenders party thereto (as amended, the “Credit Agreement”). The Fourth Amendment, among other things, increases the borrowing base thereunder from $185 million, with $160 million readily available and $25 million subject to the consent of all lenders, to $250 million readily available. Concurrent with the effectiveness of the Fourth Amendment, the Company repaid its bridge loan facility in full using available borrowing capacity under the Company’s Credit Agreement.

From time to time, the agents, arrangers, book runners and lenders under the Credit Agreement and their affiliates have provided, and may provide in the future, investment banking, commercial lending, hedging and financial advisory services to the Company and its affiliates in the ordinary course of business, for which they have received, or may in the future receive, customary fees and commissions for these transactions.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information provided under Item 1.01 in this Current Report on Form 8-K is incorporated by reference into this Item 2.03.

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SIGNATURES

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.

Date: November 16, 2016
	GRAN TIERRA ENERGY INC.
	By:	/s/ David Hardy
	Name:	David Hardy
	Title:	Vice President Legal and General Counsel

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