UNITED STATES SECURITIES AND EXCHANGE COMMISSION (Mark One) ☒ ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2021 Washington, D.C. 20549 ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to FORM 10-K Commission File No. 1-32955 HOUSTON AMERICAN ENERGY CORP. Securities registered pursuant to Section 12(g) of the Act: None (Title of Class) Indicate by check mark if the regis ...