GTE

SEC source: 0001144204-17-027731 · v467138_4.xml · derivative · entry 4

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F1 · price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F2 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on May 12, 2016, May 12, 2017 and May 12, 2018.

F2 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on May 12, 2016, May 12, 2017 and May 12, 2018.

SEC source: 0001144204-17-027731 · v467138_4.xml · nonDerivative · entry 2

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 236,030

SEC source: 0001144204-17-027731 · v467138_4.xml · nonDerivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 256,030

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 17

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F19 · security: The aggregate number of shares of common stock purchased on May 12, 2017, was 191,300 shares, at a price of $2.51 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 47,492,000. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 56,900 shares purchased resulting in ownership of 13,577,390 shares; Bay II = 48,400 shares purchased resulting in ownership of 11,893,430 shares; Offshore Fund = 76,800 shares purchased resulting in ownership of 19,534,450 shares; GMT Capital = 2,500 shares purchased resulting in ownership of 709,230 shares; Claugus = 6,700 shares purchased resulting in ownership of 1,777,500 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 16

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F18 · security: The aggregate number of shares of common stock purchased on May 11, 2017, was 326,800 shares, at a price of $2.53 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 47,300,700. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 97,300 shares purchased resulting in ownership of 13,520,490 shares; Bay II = 82,700 shares purchased resulting in ownership of 11,845,030 shares; Offshore Fund = 131,000 shares purchased resulting in ownership of 19,457,650 shares; GMT Capital = 4,400 shares purchased resulting in ownership of 706,730 shares; Claugus = 11,400 shares purchased resulting in ownership of 1,770,800 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 15

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F17 · security: The aggregate number of shares of common stock purchased on May 10, 2017, was 49,000 shares, at a price of $2.54 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 46,973,900. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 14,600 shares purchased resulting in ownership of 13,423,190 shares; Bay II = 12,400 shares purchased resulting in ownership of 11,762,330 shares; Offshore Fund = 19,600 shares purchased resulting in ownership of 19,326,650 shares; GMT Capital = 700 shares purchased resulting in ownership of 702,330 shares; Claugus = 1,700 shares purchased resulting in ownership of 1,759,400 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 14

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F16 · security: The aggregate number of shares of common stock purchased on May 9, 2017, was 188,500 shares, at a price of $2.50 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 46,924,900. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 56,100 shares purchased resulting in ownership of 13,408,590 shares; Bay II = 47,700 shares purchased resulting in ownership of 11,749,930 shares; Offshore Fund = 75,600 shares purchased resulting in ownership of 19,307,050 shares; GMT Capital = 2,500 shares purchased resulting in ownership of 701,630 shares; Claugus = 6,600 shares purchased resulting in ownership of 1,757,700 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 13

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F15 · security: The aggregate number of shares of common stock purchased on May 8, 2017, was 280,600 shares, at a price of $2.47 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 46,736,400. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 83,500 shares purchased resulting in ownership of 13,352,490 shares; Bay II = 71,000 shares purchased resulting in ownership of 11,702,230 shares; Offshore Fund = 112,600 shares purchased resulting in ownership of 19,231,450 shares; GMT Capital = 3,700 shares purchased resulting in ownership of 699,130 shares; Claugus = 9,800 shares purchased resulting in ownership of 1,751,100 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001144204-17-025229 · v466392_form4.xml · nonDerivative · entry 1

Trimble Rodger Derrick · CIK 0001678494 · VP, Investor Relations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,650

SEC source: 0001144204-17-025224 · v466391_form4.xml · nonDerivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 236,030

SEC source: 0001144204-17-025223 · v461390_form4.xml · nonDerivative · entry 1

Guidry Gary · CIK 0001642424 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,527,000

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 12

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F14 · security: The aggregate number of shares of common stock purchased on May 4, 2017, was 1,036,200 shares, at a price of $2.32 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 46,455,800. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 308,400 shares purchased resulting in ownership of 13,268,990 shares; Bay II = 262,300 shares purchased resulting in ownership of 11,631,230 shares; Offshore Fund = 415,600 shares purchased resulting in ownership of 19,118,850 shares; GMT Capital = 13,700 shares purchased resulting in ownership of 695,430 shares; Claugus = 36,200 shares purchased resulting in ownership of 1,741,300 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 11

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F13 · security: The aggregate number of shares of common stock purchased on May 2, 2017, was 932,600 shares, at a price of $2.50 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 45,419,600. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 277,600 shares purchased resulting in ownership of 12,960,590 shares; Bay II = 236,000 shares purchased resulting in ownership of 11,368,930 shares; Offshore Fund = 374,100 shares purchased resulting in ownership of 18,703,250 shares; GMT Capital = 12,300 shares purchased resulting in ownership of 681,730 shares; Claugus = 32,600 shares purchased resulting in ownership of 1,705,100 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 10

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F12 · security: The aggregate number of shares of common stock purchased on May 1, 2017, was 103,600 shares, at a price of $2.51 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 44,487,000. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 30,800 shares purchased resulting in ownership of 12,682,990 shares; Bay II = 26,200 shares purchased resulting in ownership of 11,132,930 shares; Offshore Fund = 41,600 shares purchased resulting in ownership of 18,329,150 shares; GMT Capital = 1,400 shares purchased resulting in ownership of 669,430 shares; Claugus = 3,600 shares purchased resulting in ownership of 1,672,500 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 9

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F11 · security: The aggregate number of shares of common stock purchased on April 25, 2017, was 41,300 shares, at a price of $2.49 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 44,383,400. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 12,300 shares purchased resulting in ownership of 12,652,190 shares; Bay II = 10,500 shares purchased resulting in ownership of 11,106,730 shares; Offshore Fund = 16,600 shares purchased resulting in ownership of 18,287,550 shares; GMT Capital = 500 shares purchased resulting in ownership of 668,030 shares; Claugus = 1,400 shares purchased resulting in ownership of 1,668,900 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 8

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F10 · security: The aggregate number of shares of common stock purchased on April 24, 2017, was 994,900 shares, at a price of $2.51 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 44,342,100. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 296,100 shares purchased resulting in ownership of 12,639,890 shares; Bay II = 251,800 shares purchased resulting in ownership of 11,096,230 shares; Offshore Fund = 399,000 shares purchased resulting in ownership of 18,270,950 shares; GMT Capital = 13,200 shares purchased resulting in ownership of 667,530 shares; Claugus = 34,800 shares purchased resulting in ownership of 1,667,500 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001144204-17-018625 · v463402_form4.xml · derivative · entry 2

Royal Ronald · CIK 0001642113 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,719

Underlying: Common Stock · 2,719 shares

Expires 2022-04-01

SEC source: 0001144204-17-018625 · v463402_form4.xml · derivative · entry 1

Royal Ronald · CIK 0001642113 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,448

Underlying: Common Stock · 11,956 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001144204-17-018629 · v463405_form4.xml · derivative · entry 2

Dey Peter James · CIK 0001409449 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,719

Underlying: Common Stock · 2,719 shares

Expires 2022-04-01

SEC source: 0001144204-17-018629 · v463405_form4.xml · derivative · entry 1

Dey Peter James · CIK 0001409449 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,577

Underlying: Common Stock · 10,888 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001144204-17-018630 · v463407_form4.xml · derivative · entry 1

Hodgins Robert B. · CIK 0001642212 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,328

Underlying: Common Stock · 9,259 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001144204-17-018628 · v463404_form4.xml · derivative · entry 2

Smith David P · CIK 0001642280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,719

Underlying: Common Stock · 2,719 shares

Expires 2022-04-01

SEC source: 0001144204-17-018628 · v463404_form4.xml · derivative · entry 1

Smith David P · CIK 0001642280 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,502

Underlying: Common Stock · 3,766 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001144204-17-018627 · v463403_form4.xml · derivative · entry 2

Hazell Evan · CIK 0001646362 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,719

Underlying: Common Stock · 2,719 shares

Expires 2022-04-01

SEC source: 0001144204-17-018627 · v463403_form4.xml · derivative · entry 1

Hazell Evan · CIK 0001646362 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,507

Underlying: Common Stock · 7,950 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001144204-17-018624 · v463401_form4.xml · derivative · entry 2

Wade Brooke N. · CIK 0001646479 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,719

Underlying: Common Stock · 2,719 shares

Expires 2022-04-01

SEC source: 0001144204-17-018624 · v463401_form4.xml · derivative · entry 1

Wade Brooke N. · CIK 0001646479 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,448

Underlying: Common Stock · 11,956 shares

Expires not disclosed

F1 · derivative.exercise_price: Deferred stock units convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

F2 · derivative.expiration_date: Each deferred stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The deferred stock units vest in full at such time as the reporting person ceases to be a member of the Board of Directors of the Issuer.

SEC source: 0001144204-17-016073 · v462457_form4.xml · nonDerivative · entry 1

Johnson Alan Martin · CIK 0001642416 · VP, Asset Management

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,200

SEC source: 0001144204-17-014565 · v461844_form4.xml · nonDerivative · entry 1

Wade Brooke N. · CIK 0001646479 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Wade Capital Corporation

Disclosed balance after: 492,600

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 7

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F9 · security: The aggregate number of shares of common stock purchased on March 13, 2017, was 518,100 shares, at a price of $2.56 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 43,347,200. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 154,200 shares purchased resulting in ownership of 12,343,790 shares; Bay II = 131,100 shares purchased resulting in ownership of 10,844,430 shares; Offshore Fund = 207,800 shares purchased resulting in ownership of 17,871,950 shares; GMT Capital = 6,900 shares purchased resulting in ownership of 654,330 shares; Claugus = 18,100 shares purchased resulting in ownership of 1,632,700 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 6

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F8 · security: The aggregate number of shares of common stock purchased on March 6, 2017, was 716,400 shares, at a price of $2.67 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 42,829,100. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 213,200 shares purchased resulting in ownership of 12,189,590 shares; Bay II = 181,300 shares purchased resulting in ownership of 10,713,330 shares; Offshore Fund = 287,400 shares purchased resulting in ownership of 17,664,150 shares; GMT Capital = 9,500 shares purchased resulting in ownership of 647,430 shares; Claugus = 25,000 shares purchased resulting in ownership of 1,614,600 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001106191-19-000022 · primary_doc.xml · nonDerivative · entry 5

GMT CAPITAL CORP · CIK 0001106191 · 10% owner

BAY RESOURCE PARTNERS LP · CIK 0000899037 · 10% owner

BAY II RESOURCE PARTNERS LP · CIK 0001161416 · 10% owner

BAY RESOURCE PARTNERS OFFSHORE MASTER FUND, L.P. · CIK 0001733113 · 10% owner

CLAUGUS THOMAS E · CIK 0001075617 · 10% owner

GMT Exploration Co LLC · CIK 0001396794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,675,186

F1 · security: This Form 5 is being jointly filed by Bay Resource Partners, L.P. (Bay), a Delaware limited partnership, Bay II Resource Partners, L.P. (Bay II), a Delaware limited partnership, Bay Resource Partners Offshore Master Fund, L.P. (Bay Offshore), an exempted limited partnership organized under the laws of the Cayman Islands, GMT Exploration Company LLC (GMT Exploration), a Delaware limited liability company, GMT Capital Corp., a Georgia corporation (GMT Capital) on behalf of certain sub-advised accounts managed by it, and Thomas E. Claugus (Claugus), a United States citizen. The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons. Bay, Bay II, Bay Offshore, and Claugus, each have the same address as the designated filer in Item 1 of this Form 5. GMT Exploration's address is 1560 Broadway, Suite 2000, Denver, Colorado 80202.

F2 · security: GMT Capital is the general partner of Bay and Bay II and has the power to direct the affairs of Bay and Bay II, including voting and disposition of shares. As the discretionary investment manager of Bay Offshore, GMT Capital has power to direct voting and disposition of shares held by Bay Offshore and certain sub-advised accounts it manages. Claugus is the President of GMT Capital and in that capacity, directs the operations of each of Bay and Bay II and voting and disposition of shares held by Bay Offshore and certain sub-advised accounts. GMT Capital is also the non-discretionary manager of GMT Exploration through a separately managed account relationship. In addition, Claugus owns a substantial interest in GMT Exploration. GMT Capital and Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Claugus disclaims such beneficial ownership except to the extent ultimately realized.

F7 · security: The aggregate number of shares of common stock purchased on March 3, 2017, was 319,800 shares, at a price of $2.64 per share, resulting in an aggregate number of shares owned by the Reporting Persons of 42,112,700. Such shares were purchased, and thereafter beneficially owned by the Reporting Persons in the following amounts: Bay = 95,200 shares purchased resulting in ownership of 11,976,390 shares; Bay II = 81000 shares purchased resulting in ownership of 10,532,030 shares; Offshore Fund = 128,200 shares purchased resulting in ownership of 17,376,750 shares; GMT Capital = 4,200 shares purchased resulting in ownership of 637,930 shares; Claugus = 11,200 shares purchased resulting in ownership of 1,589,600 shares; GMT Exploration = 0 shares purchased resulting in ownership of 0 shares.

SEC source: 0001144204-17-013059 · v461228_form4.xml · derivative · entry 1

Hardy David Eldon · CIK 0001483985 · VP, Legal and General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,500

Underlying: Common Stock · 84,500 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013055 · v461224_form4.xml · derivative · entry 1

Mawdsley Susan Lynn · CIK 0001678496 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,900

Underlying: Common Stock · 78,900 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013057 · v461226_form4.xml · derivative · entry 1

Caldwell Ed · CIK 0001678493 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,900

Underlying: Common Stock · 78,900 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013058 · v461227_form4.xml · derivative · entry 1

West Lawrence · CIK 0001642277 · Vice President, Exploration

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,900

Underlying: Common Stock · 78,900 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013056 · v461225_form4.xml · derivative · entry 1

Coral Adrian · CIK 0001615226 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,200

Underlying: Common Stock · 74,200 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013054 · v461223_form4.xml · derivative · entry 1

Mah Glen W · CIK 0001678495 · VP, Business Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,900

Underlying: Common Stock · 78,900 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013053 · v461222_form4.xml · derivative · entry 1

Ellson Ryan · CIK 0001642213 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,400

Underlying: Common Stock · 133,400 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013051 · v461220_form4.xml · derivative · entry 1

Johnson Alan Martin · CIK 0001642416 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,900

Underlying: Common Stock · 78,900 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013052 · v461221_form4.xml · derivative · entry 1

Evans Jim · CIK 0001642276 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,900

Underlying: Common Stock · 78,900 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013049 · v461218_form4.xml · derivative · entry 1

Guidry Gary · CIK 0001642424 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,200

Underlying: Common Stock · 184,200 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-013050 · v461219_form4.xml · derivative · entry 1

Trimble Rodger Derrick · CIK 0001678494 · VP, Investor Relations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,900

Underlying: Common Stock · 78,900 shares

Expires 2022-03-01

F1 · derivative.exercise_date: One-third of the stock options will vest on March 2, 2018, an additional one-third of the stock options will vest on March 2, 2019 and the remaining one-third of the stock options will vest on March 2, 2020.

SEC source: 0001144204-17-012492 · v461013_form4.xml · derivative · entry 4

Coral Adrian · CIK 0001615226 · Pres., GTE Colombia, Ltd.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,072 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F1 · price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F3 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on March 1, 2015, March 1, 2016 and March 1, 2017.

F3 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on March 1, 2015, March 1, 2016 and March 1, 2017.

SEC source: 0001144204-17-012492 · v461013_form4.xml · derivative · entry 3

Coral Adrian · CIK 0001615226 · Pres., GTE Colombia, Ltd.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,334

Underlying: Common Stock · 8,333 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F1 · price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F2 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on March 1, 2016, March 1, 2017 and March 1, 2018.

F2 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on March 1, 2016, March 1, 2017 and March 1, 2018.

SEC source: 0001144204-17-012492 · v461013_form4.xml · nonDerivative · entry 2

Coral Adrian · CIK 0001615226 · Pres., GTE Colombia, Ltd.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

SEC source: 0001144204-17-012492 · v461013_form4.xml · nonDerivative · entry 1

Coral Adrian · CIK 0001615226 · Pres., GTE Colombia, Ltd.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,405

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

SEC source: 0001144204-17-013060 · v461240_form4.xml · derivative · entry 4

Mawdsley Susan Lynn · CIK 0001678496 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,780

Underlying: Common Stock · 2,780 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F1 · price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F3 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on March 1, 2016, March 1, 2017 and March 1, 2018.

F3 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on March 1, 2016, March 1, 2017 and March 1, 2018.

SEC source: 0001144204-17-013060 · v461240_form4.xml · derivative · entry 3

Mawdsley Susan Lynn · CIK 0001678496 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,572 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F1 · price: Reflects vesting of shares subject to a restricted stock unit previously reported for which settlement was solely in cash.

F2 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on March 1, 2015, March 1, 2016 and March 1, 2017.

F2 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of Gran Tierra Energy Inc. common stock. The restricted stock units vest in three equal installments on March 1, 2015, March 1, 2016 and March 1, 2017.

SEC source: 0001144204-17-013060 · v461240_form4.xml · nonDerivative · entry 2

Mawdsley Susan Lynn · CIK 0001678496 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,000