Nevada
|
|
333-111656
|
|
98-0479924
|
(State
or other jurisdiction
of
incorporation)
|
|
(Commission
File Number)
|
|
(I.R.S.
Employer
Identification
Number)
|
300,
611 - 10th
Avenue S.W.
|
||
Calgary,
Alberta, Canada
|
T2R
0B2
|
|
(Address
of principal executive offices)
|
|
(Zip
Code)
|
¨
|
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))
|
(d)
|
Exhibits. |
Exhibit
No.
|
Description
|
|
16.1
|
Letter
from Moen and Company.
|
Gran
Tierra Energy
Inc.
|
||
|
|
|
By: /s/ James Hart | ||
|
||
Name:
James Hart
Title:
Chief Financial Officer
Date:
April 24, 2006
|