Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

	As at December 31,
(Thousands of U.S. Dollars)	2021		2020
Oil and natural gas properties
Proved	$	4,302,473	$	4,106,768
Unproved	131,865		161,763
	4,434,338		4,268,531
Other (1)	34,943		32,135
	4,469,281		4,300,666
Accumulated depletion, depreciation and impairment	(3,473,484)		(3,336,184)
	$	995,797	$	964,482

(1) The “other” category includes $13.9 million right-of-use assets for operating and finance leases which had a net book value of $3.9 million as at December 31, 2021 (December 31, 2020 - $11.4 million which had a net book value of $4.4 million).

Summary of Oil and Natural Gas Properties

The following is a summary of Gran Tierra’s oil and natural gas properties not subject to depletion as at December 31, 2021:

	Costs Incurred in
(Thousands of U.S. Dollars)	2021		2020		2019		Prior to 2019		Total
Acquisition costs - Colombia	$	—	$	—	$	—	$	10,268	$	10,268
Exploration costs - Colombia	2,416		9,909		36,881		63,306		112,512
Exploration costs - Ecuador	2,708		2,160		4,217		—		9,085
	$	5,124	$	12,069	$	41,098	$	73,574	$	131,865