X0306 4 2012-12-13 0 0001156041 HOUSTON AMERICAN ENERGY CORP HUSA 0001188774 TERWILLIGER JOHN F 801 TRAVIS STREET, SUITE 1425 HOUSTON TX 77002 1 1 1 0 President and CEO Common Stock 2012-12-13 4 P 0 205048 0.208 A 7850715 D Common Stock 2012-12-14 4 P 0 141202 0.21 A 7991917 D Common Stock 2012-12-17 4 P 0 7055 0.21 A 7998972 D Stock Option (Right to buy) 7.2 2008-06-02 2018-06-02 Common Stock 900000 900000 D Stock Option (Right to buy) 1.65 2012-12-11 2022-06-10 Common Stock 600000 600000 D This transaction was executed in multiple trades at prices ranging from $0.20 to $0.21. The price reported above represents the weighted average purchase price. This transaction was executed in multiple trades at prices ranging from $0.209 to $0.21. The price reported above represents the weighted average purchase price. The options vest and are exercisable in 1/6 increments on each anniversary of the date of grant. The date exercisable is the first vesting date. The options vest on grant. 214,500 options are exercisable 6 months from the grant date and 385,500 options are exercisable on and after shareholder approval of amendment to the Company's 2008 Equity Incentive Plan to increase the shares reserved under the Plan to facilitate exercise. /s/ John F. Terwilliger 2012-12-17