Document:

CERTIFICATE
OF DESIGNATIONS OF

12.00%
SERIES B CONVERTIBLE

PREFERRED
STOCK,

PAR
VALUE $0.001 PER SHARE, OF

HOUSTON
AMERICAN ENERGY CORP.

_______________________

 

Pursuant
to Sections 151 and 103 of the

 

General
Corporation Law of the State of Delaware

 _______________________

 

HOUSTON
AMERICAN ENERGY CORP., a corporation organized and existing under the laws of the State of Delaware (the “Company”),
certifies that pursuant to the authority contained in its Certificate of Incorporation, as amended from time to time (the “Certificate
of Incorporation”), and in accordance with the provisions of Section 151 of the General Corporation Law of the State
of Delaware, the Board of Directors of the Company (the “Board of Directors”) has duly approved and adopted
the following resolution on May 3, 2017 and the resolution was adopted by all necessary action on the part of the Company:

 

RESOLVED,
that pursuant to the authority vested in the Board of Directors by the Certificate of Incorporation and Section 151 of the General
Corporation Law of the State of Delaware, the Board of Directors does hereby designate, create, authorize and provide for the
issue of a series of 1,000 shares of Preferred Stock, par value $0.001 per share, having the voting powers and such designations,
preferences and relative, participating, optional and other special rights, and qualifications, limitations and restrictions that
are set forth in this resolution of the Board of Directors pursuant to authority expressly vested in it by the provisions of the
Certificate of Incorporation and hereby constituting an amendment to the Certificate of Incorporation as follows:

 

Section
1. Designation. The designation of the series of preferred stock of the Company is “12.00% Series B Convertible Preferred
Stock,” par value $0.001 per share (the ”Series B Preferred Stock”). Each share of the Series B
Preferred Stock shall be identical in all respects to every other share of the Series B Preferred Stock. The Series B Preferred
Stock shall be perpetual.

 

Section
2. Number of Shares. The authorized number of shares of Series B Preferred Stock is 1,000 shares. Series B Preferred Stock
that is redeemed, purchased or otherwise acquired by the Company, or converted into another class or series of Capital Stock shall
not be reissued as Series B Preferred Stock, and the Company shall take such actions as are necessary to cause such acquired or
converted shares to resume the status of authorized but unissued shares of Preferred Stock.

 

Section
3. Defined Terms and Rules of Construction.

 

		(a)	Definitions.
                                         As used herein with respect to the Series B Preferred Stock:

			

 

“Affiliate”
of any Person shall mean any other Person directly or indirectly controlling or controlled by or under direct or indirect common
control with such Person. For purposes of this definition, “control” when used with respect to any Person has the
meaning specified in Rule 12b-2 under the Exchange Act; and the terms “controlling” and “controlled” have
meanings correlative to the foregoing.

 

“Beneficially
Own” shall mean “beneficially own” as defined in Rule 13d-3 under the Exchange Act.

 

“Board
of Directors” shall mean the board of directors of the Company.

 

“Business
Day” shall mean a day that is a Monday, Tuesday, Wednesday, Thursday or Friday and is not a day on which banking institutions
in New York, New York or Houston, Texas generally are authorized or obligated by law, regulation or executive order to close.

  

“Bylaws”
shall mean the Bylaws of the Company in effect on the date hereof, as they may be amended from time to time.

 

    	 

    	 

    

 

“Capital
Stock” shall mean any and all shares, interests, rights to purchase, warrants, options, participations or other equivalents
of or interests in (in each case however designated) stock issued by the Company.

 

“Certificate
of Incorporation” shall mean the Certificate of Incorporation of the Company, as amended from time to time, including
by this Certificate of Designations.

 

“Certificate
of Designations” shall mean this Certificate of Designations relating to the Series B Preferred Stock, as it may be
amended from time to time.

 

“Change
of Control” shall mean the occurrence of any of the following:

 

(1)
any Person shall Beneficially Own, directly or indirectly, through a purchase, merger or other acquisition transaction or series
of transactions, shares of the Company's Capital Stock entitling such Person to exercise more than 50% of the total voting power
of all classes of Voting Stock of the Company, other than an acquisition by the Company, any of the Company's Subsidiaries or
any of the Company's employee benefit plans (for purposes of this clause (1), “Person” shall include any syndicate
or group that would be deemed to be a “person” under Section 13(d)(3) of the Exchange Act); or

 

(2)
the Company (i) merges or consolidates with or into any other Person, another Person merges with or into the Company, or the Company
conveys, sells, transfers or leases all or substantially all of the Company's assets to another Person or (ii) engages in any
recapitalization, reclassification or other transaction in which all or substantially all of the Common Stock is exchanged for
or converted into cash, securities or other property, in each case other than a merger or consolidation:

 

(A)
that does not result in a reclassification, conversion, exchange or cancellation of the Company's outstanding Common Stock; provided that
the holders of the Common Stock outstanding immediately prior to such transaction hold the majority of the Common Stock immediately
following such transaction;

 

(B)
which is effected solely to change the Company's jurisdiction of incorporation and results in a reclassification, conversion or
exchange of outstanding shares of the Common Stock solely into shares of common stock of the surviving entity; or

 

(C)
where the Voting Stock outstanding immediately prior to such transaction is converted into or exchanged for Voting Stock of the
surviving or transferee Person constituting a majority of the outstanding shares of such Voting Stock of such surviving or transferee
Person (immediately after giving effect to such issuance).

 

“Close
of Business” shall mean 5:00 p.m., Eastern Time, on any Business Day.

 

“Closing
Price” shall mean the price per share of the final trade of the Common Stock on the applicable Trading Day on the principal
national securities exchange or market on which the Common Stock is listed or admitted to trading (including any over-the-counter
market).

 

“Code”
shall mean the Internal Revenue Code of 1986, as amended.

 

“Commission”
shall mean the U.S. Securities and Exchange Commission, including the staff thereof.

 

“Common
Stock” shall mean the common stock, par value $0.001 per share, of the Company.

 

“Company”
shall mean Houston American Energy Corp., a corporation organized and existing under the laws of the State of Delaware, and any
successor thereof.

 

“Conversion
Price” shall mean the quotient of (i) the Liquidation Preference and (ii) $1,000.

 

“Conversion
Rate” shall, subject to adjustment as set forth in Section 8, mean the quotient of (x) 1,000, and (y) $0.36.

 

    	2

    	 

    

 

“Current
Market Price” shall mean the average Closing Price for the ten (10) consecutive Trading Days immediately preceding,
but not including, the date as of which the Current Market Price is to be determined.

 

“Debt
Documents” shall mean each agreement, if any, of the Company for borrowed money in an aggregate principal amount in
excess of $2.0 million (with “principal amount” for purposes of this definition to include undrawn committed
or available amounts) that is entered into by the Company from time to time and as may be amended, supplemented, restated, renewed,
replaced, refinanced or otherwise modified from time to time. For the avoidance of doubt, (x) obligations under multiple agreements
may not be aggregated for purposes of satisfying the definition of Debt Document, (y) mortgages, real estate leases, capital lease
obligations, purchase money agreements, sale-leaseback transactions, equipment financing, inventory financing, letters of credit
and receivables financing shall be eligible to constitute Debt Documents and (z) interest rate swaps, currency or commodity hedges
and other derivative instruments shall be eligible to constitute Debt Documents measured on the basis of liability to the Company
determined as of the date of the most recent quarterly or annual balance sheet of the Company, and not based on notional amount.

 

“Distributed
Property” shall have the meaning ascribed to it in Section 8(c).

 

“Dividend
Payment Date” shall mean March 31, June 30, September 30 and December 31 of each year, commencing on June 30, 2017; provided that
if any such Dividend Payment Date would otherwise occur on a day that is not a Business Day, such Dividend Payment Date shall
instead be (and any dividend payable on Series B Preferred Stock on such Dividend Payment Date shall instead be payable on) the
immediately succeeding Business Day.

 

“Dividend
Period” shall mean the period commencing on and including a Dividend Payment Date and shall end on and include the day
immediately preceding the next Dividend Payment Date; provided that the “Initial Dividend Period”
shall commence on and include the Original Issue Date with respect to each individual share of Series B Preferred Stock and shall
end on and include the day immediately preceding the first Dividend Payment Date.

 

“Dividend
Rate” shall mean 12.00% per annum.

 

“Dividend
Record Date” shall have the meaning ascribed to it in Section 4(a).

 

“Exchange
Act” shall mean the Securities Exchange Act of 1934, as amended.

 

“Exchange
Property” shall have the meaning ascribed to it in Section 10(a).

 

“Internal
Reorganization Event” shall have the meaning ascribed to it in Section 10(d).

 

“Investor
Majority” means, so long as shares of Series B Preferred Stock remain outstanding, holders of a majority of the Series
B Preferred Stock outstanding at such time.

 

“Junior
Stock” shall mean the Common Stock and any other class or series of Capital Stock that ranks junior to the Series B
Preferred Stock (1) as to the payment of dividends or (2) as to the distribution of assets on any liquidation, dissolution or
winding up of the Company, or both.

 

“Liquidating
Distribution” shall have the meaning ascribed to it in Section 8(c).

 

“Liquidation
Preference” shall initially mean $1,000 per share of Series B Preferred Stock.

 

“Original
Issue Date” shall, as to each share of Series B Preferred Stock, mean the date on which each share of Series B Preferred
Stock is first issued.

 

“Parity
Stock” shall mean any class or series of Capital Stock (other than the Series B Preferred Stock) that ranks equally
with the Series B Preferred Stock both (1) in the priority of payment of dividends and (2) in the distribution of assets upon
any liquidation, dissolution or winding up of the Company (in each case, without regard to whether dividends accrue cumulatively
or non-cumulatively).

 

“Per
Share Amount” shall have the meaning ascribed to it in Section 7(a).

 

    	3

    	 

    

 

“Person”
shall mean any individual, company, partnership, limited liability company, joint venture, association, joint stock company, trust,
unincorporated organization, government or agency or political subdivision thereof or any other entity.

 

“Preferred
Dividend” has the meaning ascribed to it in Section 4(b).

 

“Preferred
Stock” shall mean any and all series of preferred stock of the Company, including the Series A Preferred Stock and the
Series B Preferred Stock.

 

“Record
Date” shall mean, with respect to any dividend, distribution or other transaction or event in which the holders of Common
Stock have the right to receive any cash, securities or other property or in which the Common Stock (or other applicable security)
is exchanged for or converted into any combination of cash, securities or other property, the date fixed for determination of
shareholders entitled to receive such cash, securities or other property (whether such date is fixed by the Board of Directors
or by statute, contract, this Certificate of Designations or otherwise).

 

“Redemption
Date” shall have the meaning ascribed to it in Section 6(b).

 

“Redemption
Notice” shall have the meaning ascribed to it in Section 6(b).

 

“Redemption
Price” shall have the meaning ascribed to it in Section 6(a).

 

“Reorganization
Event” shall have the meaning ascribed to it in Section 10(a).

 

“Reorganization
Event Date” shall have the meaning ascribed to it in Section 10(a).

 

“Senior
Stock” shall mean the Series A Preferred Stock and any other class or series of Capital Stock that ranks senior to the
Series B Preferred Stock (1) as to the payment of dividends or (2) as to the distribution of assets on any liquidation, dissolution
or winding up of the Company, or both.

 

“Series
A Preferred Stock” shall mean the 12.0% Series A Convertible Preferred Stock of the Company.

 

“Series
B Preferred Stock” shall have the meaning ascribed to it in Section 1.

 

“Spin-Off”
shall have the meaning ascribed to it in Section 8(c).

 

“Subsidiary”
shall mean any company, partnership, limited liability company, joint venture, joint stock company, trust, unincorporated organization
or other entity for which the Company owns at least 50% of the Voting Stock of such entity.

 

“Trading
Day” shall mean any Business Day on which the Common Stock is traded, or able to be traded, on the principal national
securities exchange or market on which the Common Stock is listed or admitted to trading (including any over-the-counter market).

 

“Trigger
Event” shall have the meaning ascribed to it in Section 8(c).

 

“Voting
Stock” shall mean Capital Stock of the class or classes pursuant to which the holders thereof have the general voting
power under ordinary circumstances (determined without regard to any classification of directors) to elect one or more members
of the Board of Directors (without regard to whether or not, at the relevant time, Capital Stock of any other class or classes
(other than Common Stock) shall have or might have voting power by reason of the happening of any contingency).

 

(b)
Rules of Construction. Unless the context otherwise requires: (i) a term has the meaning assigned to it herein; (ii) an accounting
term not otherwise defined herein has the meaning accorded to it in accordance with generally accepted accounting principles in
effect from time to time in the United States, applied on a consistent basis; (iii) words in the singular include the plural,
and in the plural include the singular; (iv) “or” is not exclusive; (v) “will” shall be interpreted to
express a command; (vi) “including” means including without limitation; (vii) provisions apply to successive events
and transactions; (viii) references to any Section or clause refer to the corresponding Section or clause, respectively, of this
Certificate of Designations; (ix) any reference to a day or number of days, unless expressly referred to as a Business Day or
Trading Day, shall mean the respective calendar day or number of calendar days; (x) references to sections of or rules under the
Exchange Act shall be deemed to include substitute, replacement or successor sections or rules, and any term defined by reference
to a section of or rule under the Exchange Act shall include Commission and judicial interpretations of such section or rule;
(xi) references to sections of the Code shall be deemed to include any substitute, replacement or successor sections as well as
the Treasury Regulations promulgated thereunder from time to time; (xii) headings are for convenience only; and (xiii) unless
otherwise expressly provided in this Certificate of Designations, a reference to any specific agreement or other document shall
be deemed a reference to such agreement or document as amended from time to time in accordance with the terms of such agreement
or document.

 

    	4

    	 

    

 

Section
4. Dividends.

 

(a)
Participation with Dividends on Common Stock. No cash dividend may be declared or paid on the Common Stock during a Dividend
Period unless a cash dividend is also declared or paid (as applicable) on the Series B Preferred Stock for such Dividend Period
in an amount (the “Common Participation Amount”) equal to (A) the Per Share Amount as of the Record Date for
such dividend (the “Dividend Record Date”) multiplied by (B) the amount per share distributed
or to be distributed in respect of the Common Stock in connection with such cash dividend.

 

(b)
Dividend Rate on Series B Preferred Stock. In addition to participation in cash dividends on Common Stock as set forth in
Section 4(a), holders of the Series B Preferred Stock shall be entitled to receive, in preference to the holders of any Junior
Stock but subject to the prior and superior rights of the Senior Stock, on each share of Series B Preferred Stock and with respect
to each Dividend Period commencing on and after the Original Issue Date, an amount (such amount, the “Preferred Dividend”)
equal to the Dividend Rate multiplied by the Liquidation Preference per share of Series B Preferred Stock. Amounts
payable at the Dividend Rate shall begin to accrue and be cumulative from the Original Issue Date, whether or not the Company
has funds legally available for such dividends or such dividends are declared, and shall be payable in arrears on the first Dividend
Payment Date after such Dividend Period. Dividends that are payable on the Series B Preferred Stock on any Dividend Payment Date
shall be payable to holders of record of the Series B Preferred Stock as they appear on the stock register of the Company on the
Record Date for such dividend, which shall be the date 15 days prior to the applicable Dividend Payment Date.

 

Dividends
payable at the Dividend Rate on the Series B Preferred Stock in respect of any Dividend Period shall be computed on the basis
of a 360-day year consisting of twelve 30-day months. The amount of dividends payable at the Dividend Rate on the Series B Preferred
Stock on any date prior to the end of a Dividend Period, and for the initial Dividend Period, shall be computed on the basis of
a 360-day year consisting of twelve 30-day months, and actual days elapsed over a 30-day month (i.e., during each Dividend Period,
$30.00 of Preferred Dividend accrues).

 

(c)
Payment of Dividends. Notwithstanding anything to the contrary in this Certificate of Designations, cash dividends shall be
paid only to the extent (i) the Company has funds legally available for such payment, (ii) there are no provisions in any of the
Debt Documents prohibiting the payment of cash dividends on the Series B Preferred Stock in such amount on the applicable Dividend
Payment Date and (iii) the Board of Directors, or an authorized committee thereof, declares such dividend payable. To the extent
the Board of Directors desires to declare any cash dividend or other distribution in cash on the Common Stock during any Dividend
Period that requires a corresponding cash dividend on the Series B Preferred Stock in accordance with Section 4(a), it may do
so only to the extent that (i) the Company has funds legally available for the payment of such dividend or distribution in cash
on all of the shares of Common Stock and Series B Preferred Stock then outstanding and (ii) such cash dividend or distribution
on the Common Stock and the Series B Preferred Stock shall be payable only on the applicable Dividend Payment Date for such Dividend
Period.

 

(d)
Priority of Dividends. Subject to Sections 4(a), (b) and (c), Section 8 and Section 9, such dividends (payable in cash, securities
or other property) as may be determined by the Board of Directors or an authorized committee thereof may be declared and paid
on any Capital Stock, including Senior Stock, Common Stock and other Junior Stock, from time to time out of any funds legally
available for such payment.

 

    	5

    	 

    

 

Section
5. Liquidation Rights.

 

(a)
Voluntary or Involuntary Liquidation. In the event of any liquidation, dissolution or winding up of the affairs of the Company,
whether voluntary or involuntary, holders of the Series B Preferred Stock shall be entitled to receive for each share of Series
B Preferred Stock, out of the assets of the Company or proceeds thereof (whether capital or surplus) available for distribution
to shareholders of the Company, and after satisfaction of all liabilities and obligations to creditors of the Company and the
liquidation rights of any Senior Stock, on par with each share of Parity Stock but before any distribution of such assets or proceeds
is made to or set aside for the holders of Junior Stock, an amount equal to the greater of (1) the sum of (a) the Liquidation
Preference per share of the Series B Preferred Stock plus (b) an amount per share equal to accrued but unpaid
dividends to but excluding the date fixed for such liquidation, dissolution or winding up of the Company and (2) the per share
amount of all cash, securities and other property (such securities or other property having a value equal to its fair market value
as reasonably determined by the Board of Directors) to be distributed in respect of the Common Stock such holder would have been
entitled to receive had it converted such Series B Preferred Stock immediately prior to the date fixed for such liquidation, dissolution
or winding up of the Company. To the extent such amount is paid in full to all holders of Series B Preferred Stock and all the
holders of Parity Stock, the holders of Junior Stock of the Company shall be entitled to receive all remaining assets of the Company
(or proceeds thereof) according to their respective rights and preferences.

 

(b)
Partial Payment. If in connection with any distribution described in Section 5(a) above the assets of the Company or proceeds
thereof are not sufficient to pay the liquidation preferences in full to all holders of Series B Preferred Stock and all holders
of Parity Stock, the amounts paid to the holders of Series B Preferred Stock and to the holders of all such other Parity Stock
shall be paid pro rata in accordance with the respective aggregate liquidation preferences of the holders of
Series B Preferred Stock and the holders of all such other Parity Stock.

 

(c)
Merger, Consolidation and Sale of Assets Not Liquidation. For purposes of this Section 5, the merger or consolidation of the
Company with any other corporation or other entity, including a merger or consolidation in which the holders of Series B Preferred
Stock receive cash, securities or other property for their shares, or the sale, lease or exchange (for cash, securities or other
property) of all or substantially all of the assets of the Company, shall not be deemed to constitute a liquidation, dissolution
or winding up of the Company, but instead shall be subject to the provisions of Section 10.

 

Section
6. Redemption.

 

(a)
On or after May 1, 2019, the Company will have the right, but not the obligation, to redeem, in the manner described in Sections
6(a) and (b) below, some or all of the then outstanding shares of Series B Preferred Stock by paying cash therefore in a per share
amount (the “Redemption Price”) equal to the sum of (i) the percentage set forth in the table below multiplied
by the Liquidation Preference per share of the Series B Preferred Stock plus (ii) an amount equal to accrued but unpaid
dividends to but excluding the date of redemption; provided, however, that the Company shall not repurchase any
shares of Series B Preferred Stock pursuant to this Section 6(a) to the extent such repurchase would be prohibited by (x) any
provision of any Debt Document, (y) any provision of any Senior Stock or (z) any applicable law:

 

	For the period below	 	Percentage	 
	On or after May 1, 2019 to April 30, 2020	 	 	112	%
	On or after May 1, 2020 to April 30, 2021	 	 	108	%
	On or after May 1, 2021 to April 30, 2022	 	 	104	%
	On or after May 1, 2022	 	 	100	%

 

(b)
The Company may exercise the redemption right set forth in Section 6(a) by providing to the holders of the Series B Preferred
Stock written notice (a “Redemption Notice”) of its intent to redeem shares, which Redemption Notice shall
(i) be mailed, first class postage prepaid, to each holder of Series B Preferred Stock to be redeemed, (ii) call upon the holder
to surrender the certificates evidencing the shares to be redeemed, and (iii) specify (A) the manner and place of surrendering
certificates and receiving the Redemption Price, (B) the number of shares of Series B Preferred Stock to be redeemed from such
holder, (C) the Redemption Price to be paid to such holder, and (D) the date on which shares of Series B Preferred Stock are to
be redeemed (the “Redemption Date”), which date shall be no less than 15 nor more than 30 calendar days from
the date of delivery of the Redemption Notice.

 

    	6

    	 

    

 

(c)
Subject to the rights of the holders of shares of Series B Preferred Stock to convert their shares in the manner provided
in Section 7 below, which right shall terminate 3 business days prior to the Redemption Date, on the Redemption Date, the holder
shall surrender to the Company the certificates evidencing the shares of Series B Preferred Stock to be redeemed in the manner
and at the place specified in the Redemption Notice, and upon surrender of such certificates the Company shall pay the Redemption
Price to the holder and cancel the certificate so surrendered. In the event that less than all the shares represented by any such
certificate are redeemed, a new certificate shall be issued representing the unredeemed shares.

 

(d)
From and after the Redemption Date, unless there shall be a default in payment of the Redemption Price, all rights of the
holders of shares of Series B Preferred Stock designated for redemption in the Redemption Notice (except the right to receive
the Redemption Price without interest upon surrender of their certificate(s)) shall cease with respect to such shares, and such
shares shall not thereafter be transferred on the books of the Company or be deemed to be outstanding for any purpose whatsoever.

 

Section
7. Conversion.

 

(a)
Conversion at the Option of the Holders. Subject to Section 7(d) below, each share of Series B Preferred Stock may be converted
on any date, from time to time, at the option of the holder thereof, into the number of shares of Common Stock (the “Per
Share Amount”) equal to the Conversion Price multiplied by the Conversion Rate in effect at such time.

 

The
right of conversion attaching to any shares of Series B Preferred Stock may be exercised by the holders thereof by delivering
the shares to be converted to the office of the Company, accompanied by a duly signed and completed notice of conversion in form
reasonably satisfactory to the Company. The conversion date shall be the date on which the shares of Series B Preferred Stock
and the duly signed and completed notice of conversion are received by the Company. The Person entitled to receive the Common
Stock issuable upon such conversion shall be treated for all purposes as the record holder or holders of such Common Stock as
of such conversion date, and such Person or Persons shall cease to be a record holder of the Series B Preferred Stock on that
date. As promptly as practicable on or after the conversion date (and in any event no later than three Trading Days thereafter),
the Company shall issue the number of whole shares of Common Stock issuable upon conversion, with any fractional shares (after
aggregating all Series B Preferred Stock being converted on such date) rounded to the nearest whole share. Such delivery shall
be made, at the option of the applicable holder, in certificated form or by book-entry. Any such certificate or certificates shall
be delivered by the Company to the appropriate holder on a book-entry basis or by mailing certificates evidencing the shares to
the holders at their respective addresses as set forth in the conversion notice.

 

(b)
Common Stock Reserved for Issuance. The Company shall at all times reserve and keep available out of its authorized and
unissued Common Stock, solely for issuance upon the conversion of the Series B Preferred Stock, such number of shares of Common
Stock as shall from time to time be issuable upon the conversion of all the shares of Series B Preferred Stock then outstanding.
Any shares of Common Stock issued upon conversion of Series B Preferred Stock shall be (i) duly authorized, validly issued and
fully paid and nonassessable, (ii) shall rank pari passu with the other shares of Common Stock outstanding from time to time and
(iii) shall be approved for listing on the principal national securities exchange or market on which the Common Stock is listed
or admitted to trading (including any over-the-counter market).

 

(c)
Taxes. The Company shall pay any and all transfer taxes that may be payable in respect of the issue or delivery of shares
of Common Stock on conversion of Series B Preferred Stock. The Company shall not, however, be required to pay any tax which may
be payable in respect of any transfer involved in the issue and delivery of shares of Common Stock in a name other than that in
which the Series B Preferred Stock so converted were registered, and no such issue or delivery shall be made unless and until
the Person requesting such issue has paid to the Company the amount of any such tax, or has established to the satisfaction of
the Company that such tax has been paid.

 

    	7

    	 

    

 

Section
8. Dilution Adjustments. The Conversion Rate shall be adjusted from time to time (successively and for each event described)
by the Company as follows:

 

(a)
If the Company shall, at any time or from time to time while any of the Series B Preferred Stock is outstanding, issue shares
of Common Stock as a dividend or distribution on shares of Common Stock, or if the Company effects a share split or share combination
in respect of the Common Stock, then the Conversion Rate shall be adjusted based on the following formula:

 

	CR'	=	CR0	x	OS'
	OSo

 

where 

	 	 
	 	CR0	=	the
    Conversion Rate in effect immediately prior to the Close of Business on the Record Date for such dividend or distribution,
    or the Close of Business on the effective date of such share split or combination, as applicable;
	 	CR'	=	the
    new Conversion Rate in effect immediately after the Close of Business on the Record Date for such dividend or distribution,
    or the Close of Business on the effective date of such share split or share combination, as applicable;
	 	OS0	=	the
    number of shares of Common Stock outstanding immediately prior to the Close of Business on the Record Date for such dividend
    or distribution, or the Close of Business on the effective date of such share split or share combination, as applicable; and
	 	OS'	=	the
    number of shares of Common Stock outstanding immediately after such dividend or distribution, or the Close of Business on
    the effective date of such share split or share combination, as applicable.

 

The
Company shall not pay any dividend or make any distribution on shares of Common Stock held in treasury by the Company.

 

(b)
Except as otherwise provided for by Section 8(c), if the Company shall, at any time or from time to time while any of the
Series B Preferred Stock is outstanding, distribute to all or substantially all holders of its outstanding shares of Common Stock
any options, rights or warrants entitling them for a period of not more than 45 days from the Record Date of such distribution
to subscribe for or purchase shares of Common Stock at a price per share less than the Closing Price of the Common Stock on the
Trading Day immediately preceding the Record Date of such distribution, the Conversion Rate shall be adjusted based on the following
formula:

 

 

	CR'	=	CR0	x	OS0
                                         + X

	OSo
    + Y

 

where

	 	 
	 	CR0	=	the
    Conversion Rate in effect immediately prior to the Close of Business on the Record Date for such distribution;
	 	CR'	=	the
    new Conversion Rate in effect immediately after the Close of Business on the Record Date for such distribution;
	 	OS0	=	the
    number of shares of Common Stock outstanding immediately prior to the Close of Business on the Record Date for such distribution;
	 	X	=	the
    total number of shares of Common Stock issuable pursuant to such options, rights or warrants; and
	 	Y	=	the
    number of shares of Common Stock equal to the aggregate price payable to exercise such options, rights or warrants divided
    by the average Closing Price of the Common Stock over the 10 consecutive Trading Day period ending on the Record Date.

 

    	8

    	 

    

 

To
the extent that shares of Common Stock are not delivered pursuant to any such options, rights or warrants that are non-transferable
upon the expiration or termination of such options, rights or warrants, the Conversion Rate shall be readjusted to the Conversion
Rate which would then be in effect had the adjustments made upon the distribution of such options, rights or warrants been made
on the basis of the delivery of only the number of shares of Common Stock actually delivered.

 

In
determining the aggregate price payable to exercise such options, rights or warrants, there shall be taken into account any amount
payable on exercise thereof, with the value of such consideration, if other than cash, to be determined in good faith by the Board
of Directors.

 

(c)    If
the Company, at any time or from time to time while any of the Series B Preferred Stock is outstanding, shall, by dividend or
otherwise, distribute to all or substantially all holders of its Common Stock shares of any class of Capital Stock of the Company,
cash, evidences of its indebtedness, assets, property or rights or warrants to acquire Capital Stock or other securities, but
excluding (i) dividends or distributions as to which an adjustment under Section 8(a) or Section 8(b) shall apply, (ii) dividends
or distributions paid exclusively in cash to the extent that the Series B Preferred Stock participates on an as-converted basis
with the Common Stock in a cash dividend or distribution in accordance with Section 4(a), and (iii) Spin-Offs to which the provision
set forth below in this Section 8(c) shall apply (any of such shares of Capital Stock, cash, indebtedness, assets, property or
rights or warrants to acquire Common Stock or other securities, hereinafter in this Section 8(c) called the “Distributed
Property”), then, in each such case the Conversion Rate shall be adjusted based on the following formula:

	CR'	=	CR0	x	SP0

	SPo
    – FMV 

where

	 	 
	 	CR0	=	the
    Conversion Rate in effect immediately prior to the Close of Business on the Record Date for such distribution;
	 	CR'	=	the
    new Conversion Rate in effect immediately after the Close of Business on the Record Date for such distribution;
	 	SP0	=	the
    average Closing Price of the Common Stock over the 10 consecutive Trading Day period ending on the Record Date for such distribution;
    and
	 	FMV	=	(i)
    for cash dividends or distributions, the amount of cash distributed and (ii) for other Distributed Property, the fair market
    value (as determined in good faith by the Board of Directors) of the portion of Distributed Property, in each case, with respect
    to each outstanding share of Common Stock on the Record Date for such distribution.

 

Notwithstanding
the foregoing, if the then fair market value (as so determined) of the portion of the Distributed Property so distributed applicable
to one share of Common Stock is equal to or greater than SP0 as set forth above (a “Liquidating Distribution”),
then in lieu of the foregoing adjustment, the Company shall distribute to each holder of Series B Preferred Stock on the date
such Distributed Property is distributed to holders of Common Stock, but without requiring such holder to convert its shares of
Series B Preferred Stock, the amount of Distributed Property such holder would have received had such holder owned a number of
shares of Common Stock equal to the Per Share Amount on the Record Date fixed for determination for shareholders entitled to receive
such Liquidating Distribution; provided, however, that the Company shall not distribute Distributed Property
to either the holders of the Common Stock or the Preferred Stock to the extent such distribution would be prohibited by any provision
of any Debt Document. If the Board of Directors determines the fair market value of any distribution for purposes of this Section
8(c) by reference to the actual or when issued trading market for any securities, it shall in doing so consider the prices in
such market over the same period used in computing the Current Market Price of the Common Stock for purposes of calculating SP0 in
the formula in this Section 8(c).

 

    	9

    	 

    

 

With
respect to an adjustment pursuant to this Section 8(c) where there has been a payment of a dividend or other distribution on the
Common Stock consisting of shares of Capital Stock of any class or series, or similar equity interest, of or relating to a Subsidiary
or other business unit of the Company (a “Spin-Off”), the Conversion Rate in effect immediately before the
Close of Business on the 10th Trading Day immediately following, and including, the effective date of the Spin-Off
shall be increased based on the following formula:

 

	CR1	=	CR0	x	FMV
    + MP0
	MPo

where

	 	 
	 	CR0	=	the
    Conversion Rate in effect immediately prior to the Close of Business on the 10th Trading Day immediately following,
    and including, the effective date of the Spin-Off;
	 	CR1	=	the
    new Conversion Rate in effect from and after the Close of Business on the 10th Trading Day immediately following,
    and including, the effective date of the Spin-Off;
	 	FMV	=	the
    average of the Closing Prices of the Capital Stock or similar equity interest distributed to holders of Common Stock applicable
    to one share of Common Stock over the 10 consecutive Trading Day period immediately following, and including, the effective
    date of the Spin-Off; and
	 	MP0	=	the
    average Closing Price of the Common Stock over the 10 consecutive Trading Day period calculated immediately following, and
    including, the effective date of the Spin-Off.

 

Such
adjustment shall occur on the 10th Trading Day immediately following, and including, the effective date of the
Spin-Off.

 

For
purposes of this Section 8(c), Section 8(a) and Section 8(b) hereof, any dividend or distribution to which this Section 8(c) is
applicable that also includes shares of Common Stock, or rights or warrants to subscribe for or purchase shares of Common Stock
to which Section 8(a) or 8(b) hereof applies (or both), shall be deemed instead to be (1) a dividend or distribution of the evidences
of indebtedness, assets or shares of Capital Stock other than such shares of Common Stock or rights or warrants to which Section
8(a) or 8(b) hereof applies (and any Conversion Rate adjustment required by this Section 8(c) with respect to such dividend or
distribution shall then be made) immediately followed by (2) a dividend or distribution of such shares of Common Stock or such
options, rights or warrants to which Section 8(a) or 8(b) hereof applies (and any further Conversion Rate adjustment required
by Section 8(a) and 8(b) hereof with respect to such dividend or distribution shall then be made), except (A) the Close of Business
on the Record Date of such dividend or distribution shall be substituted for “the Close of Business on the Record Date,”
“the Close of Business on the Record Date or the Close of Business on the effective date,” “after the Close
of Business on the Record Date for such dividend or distribution or the Close of Business on the effective date of such share
split or share combination” and “the Close of Business on the Record Date for such distribution” within the
meaning of Section 8(a) and 8(b) hereof and (B) any shares of Common Stock included in such dividend or distribution shall not
be deemed “outstanding immediately prior to the Close of Business on the Record Date or the Close of Business on the effective
date” within the meaning of Section 8(a) hereof.

 

If
the Company shall, at any time or from time to time while any of the Series B Preferred Stock is outstanding, distribute options,
rights or warrants to all or substantially all holders of Common Stock entitling the holders thereof to subscribe for, purchase
or convert into shares of Capital Stock (either initially or under certain circumstances), which options, rights or warrants,
until the occurrence of a specified event or events (“Trigger Event”): (x) are deemed to be transferred with
such shares of Common Stock; (y) are not exercisable; and (z) are also issued in respect of future issuances of Common Stock,
shall be deemed not to have been distributed for purposes of this Section 8(c), (and no adjustment to the Conversion Rate under
this Section 8(c) shall be required) until the occurrence of the earliest Trigger Event and a distribution or deemed distribution
under the terms of such options, rights or warrants at which time an appropriate adjustment (if any is required) to the Conversion
Rate shall be made in the same manner as provided for under this Section 8(c). If any such options, rights or warrants are subject
to events, upon the occurrence of which such options, rights or warrants become exercisable to purchase different securities,
evidences of indebtedness or other assets, then the date of the occurrence of any and each such event shall be deemed to be the
date of distribution and Record Date with respect to new options, rights or warrants for purposes of this Section 8(c) (and a
termination or expiration of the existing rights or warrants without exercise by any of the holders thereof). In addition, in
the event of any distribution (or deemed distribution) of options, rights or warrants (of the type described in the preceding
sentence) with respect thereto that was counted for purposes of calculating a distribution amount for which an adjustment to the
Conversion Rate under this Section 8(c) was made, (1) in the case of any such options, rights or warrants that shall all have
been redeemed or repurchased without exercise by any holders thereof, the Conversion Rate shall be readjusted upon such final
redemption or repurchase to give effect to such distribution or Trigger Event, as the case may be, as though it were a distribution
under this Section 8(c), equal to the per share redemption or repurchase price received by a holder or holders of Common Stock
with respect to such options, rights or warrants (assuming such holder had retained such options, rights or warrants), made to
all holders of Common Stock as of the date of such redemption or repurchase, and (2) in the case of such options, rights or warrants
that shall have expired or been terminated without exercise by any holders thereof, the Conversion Rate shall be readjusted as
if such options, rights or warrants had not been issued.

 

    	10

    	 

    

 

Section
9. Voting Rights.

 

(a)
General. The holders of shares of Series B Preferred Stock shall be entitled to vote with the holders of shares of Common
Stock on all matters submitted to a vote of shareholders of the Company, except as otherwise provided herein or by applicable
law. Each holder of shares of Series B Preferred Stock shall be entitled to the number of votes equal to the largest number of
whole shares of Common Stock into which all shares of Series B Preferred Stock held of record by such holder could then be converted
pursuant to Section 7 at the record date for the determination of the shareholders entitled to vote on such matters or, if no
such record date is established, at the date such vote is taken or any written consent of shareholders is first executed. The
holders of shares of Series B Preferred Stock shall be entitled to notice of any meeting of shareholders of the Company in accordance
with the Bylaws.

 

(b)
Class Voting Rights as to Particular Matters. In addition to any other vote or consent of shareholders required by law or
by the Certificate of Incorporation, the affirmative vote or consent of the Investor Majority, given in person or by proxy, either
in writing without a meeting or by vote at any meeting called for the purpose, shall be necessary for effecting any of the actions
described in clauses (1) through (3) below:

 

(1)
Dividends, Repurchase and Redemption.

 

(A)
The declaration or payment of any dividend or distribution on Common Stock, other Junior Stock or Parity Stock (other than (i)
a dividend payable solely in Junior Stock and (ii) dividends or distributions paid exclusively in cash to the extent that the
Series B Preferred Stock participates on an as-converted basis with the Common Stock in a cash dividend or distribution in accordance
with Section 4(a)) if, at the time of such declaration, payment or distribution, dividends on the Series B Preferred Stock have
not been paid in full in cash; or

 

(B)
the purchase, redemption or other acquisition for consideration by the Company, directly or indirectly, of any Common Stock, other
Junior Stock or Parity Stock (except as necessary to effect (1) a reclassification of Junior Stock for or into other Junior Stock,
(2) a reclassification of Parity Stock for or into other Parity Stock with the same or lesser aggregate liquidation preference,
(3) a reclassification of Parity Stock into Junior Stock, (4) the exchange or conversion of one share of Junior Stock for or into
another share of Junior Stock, (5) the exchange or conversion of one share of Parity Stock for or into another share of Parity
Stock with the same or lesser per share liquidation amount or (6) the exchange or conversion of one share of Parity Stock into
Junior Stock), in each case if, at the time of such purchase, redemption or other acquisition, dividends on the Series B Preferred
Stock have not been paid in full in cash;

 

(2)
Amendment of Series B Preferred Stock. Any amendment, alteration or repeal of any provision of the Certificate of Incorporation
or Certificate of Designations so as to adversely affect the relative rights, preferences, privileges or voting powers of the
Series B Preferred Stock; or

 

    	11

    	 

    

 

(3)
Authorizations, Issuances and Reclassifications. The authorization or creation of, issuance of, or reclassification into,
Parity Stock (including additional shares of the Series B Preferred Stock) or Capital Stock that would rank senior to the Series
B Preferred Stock.

 

(c)
Changes after Provision for Redemption. No vote or consent of the holders of Series B Preferred Stock shall be required pursuant
to Section 9(b) if, at or prior to the time when any such vote or consent would otherwise be required pursuant to such Section,
all outstanding shares of Series B Preferred Stock shall have been redeemed, or shall have been called for redemption upon proper
notice and sufficient funds shall have been deposited in trust for such redemption, in each case pursuant to Section 6 above.

 

Section
10. Reorganization Events.

 

(a)
In the event of:

 

(1)
any consolidation or merger of the Company with or into another Person or of another Person with or into the Company;

 

(2)
any sale, transfer, lease or conveyance to another Person of the property of the Company as an entirety or substantially as an
entirety;

 

(3)
any statutory share exchange of the Company with another Person (other than in connection with a merger or acquisition); or

 

(4)
any tender offer or exchange offer which, in combination with any related transactions, would result in a Change of Control of
the Company (in which case, the Reorganization Event for such purposes shall be all such transactions taken together),

 

in
each case in which holders of Common Stock would be entitled to receive cash, securities or other property for their shares of
Common Stock (any such event specified in this Section 10(a), a “Reorganization Event”), each share of Series
B Preferred Stock outstanding immediately prior to such Reorganization Event shall (subject to conversion rights pursuant to Section
7), in the event of a Change of Control, be exchanged for (or in the event that the transaction is not a Change of Control, be
exchanged for the right to receive upon conversion of the Series B Preferred Stock thereafter at the time of the holder's election,
in accordance with the terms hereof) whichever of the following has the greatest value (as determined by the Board of Directors
in its reasonable discretion): (A) an amount in cash equal to the sum of (1) the Liquidation Preference per share of the Series
B Preferred Stock plus (2) an amount per share equal to accrued but unpaid dividends to but excluding the date
on which such Reorganization Event occurs (the “Reorganization Event Date”); and (B) an amount equal to the product of
(I) the Per Share Amount as of the Reorganization Event Date multiplied by (II) the amount of cash, securities
or other property (such securities or other property having a value equal to its fair market value as reasonably determined by
the Board of Directors) distributed or to be distributed in respect of the Common Stock in connection with such Reorganization
Event to a holder of Common Stock that was not the counterparty to the Reorganization Event or an Affiliate of such counterparty
(such cash, securities and other property, the “Exchange Property”); provided, however,
that the Company shall not distribute cash, securities or other property as provided in this Section 10(a) to either the holders
of the Common Stock or the Series B Preferred Stock to the extent such distribution would be prohibited by any provision of any
Debt Document or Senior Stock. In case of any Reorganization Event, provision shall be made in such transaction so that the holders
of any Series B Preferred Stock shall be entitled, but not obligated, to participate in whole or in part in such Reorganization
Event directly by surrendering such Series B Preferred Stock in exchange for the Exchange Property receivable in such Reorganization
Event applicable to such Series B Preferred Stock on an as converted basis.

 

(b)
In the event that (i) the Board of Directors determines pursuant to Section 10(a) that the Series B Preferred Stock shall
be exchanged for Exchange Property and (ii) the holders of the shares of the Common Stock have the opportunity to elect the form
of consideration to be received in such transaction, the “Exchange Property” that holders of the Series B Preferred
Stock shall be entitled to receive shall be determined by the holders of a majority of the outstanding shares of Series B Preferred
Stock.

 

    	12

    	 

    

 

(c)
The above provisions of this Section 10 shall similarly apply to successive Reorganization Events.

 

(d)
Notwithstanding anything to the contrary, Section 10(a) shall not apply in the case of, and a Reorganization Event shall not
be deemed to be, a merger, consolidation, reorganization or statutory share exchange (x) among the Company and its direct and
indirect Subsidiaries or (y) between the Company and any Person for the primary purpose of changing the domicile of the Company
(a “Internal Reorganization Event”). Without limiting the rights of the holders of the Series B Preferred Stock
set forth in Section 9(b)(2), the Company shall not effectuate an Internal Reorganization Event unless the Series B Preferred
Stock shall be outstanding as a class of preferred stock of the surviving company having the same rights, terms, preferences,
liquidation preference and accrued and unpaid dividends as the Series B Preferred Stock in effect immediately prior to such Internal
Reorganization Event, as adjusted for such Internal Reorganization Event pursuant to this Certificate of Designations after giving
effect to any such Internal Reorganization Event. The Company (or any successor) shall, within 20 days of the occurrence of any
Internal Reorganization Event, provide written notice to the holders of the Series B Preferred Stock of the occurrence of such
event. Failure to deliver such notice shall not affect the operation of this Section 10(d) or the validity of any Internal Reorganization
Event.

 

Section
11. Record Holders. To the fullest extent permitted by applicable law, the Company may deem and treat the record holder of
any share of the Series B Preferred Stock as the true and lawful owner thereof for all purposes, and the Company shall not be
affected by any notice to the contrary.

 

Section
12. Notices.

 

(a)
General. All notices or communications in respect of the Series B Preferred Stock shall be sufficiently given if given
in writing and delivered in person or by first class mail, postage prepaid, or if given in such other manner as may be permitted
in this Certificate of Designations, in the Certificate of Incorporation or Bylaws or by applicable law or regulation. Notwithstanding
the foregoing, if the Series B Preferred Stock is issued in book-entry form through The Depository Trust Company or any similar
facility, such notices may be given to the holders of the Series B Preferred Stock in any manner permitted by such facility.

 

(b)
Notice of Certain Events. The Company shall, to the extent not included in the Exchange Act reports of the Company, provide
reasonable written notice to each holder of the Series B Preferred Stock of any event the occurrence of which would result in
an adjustment to the Conversion Rate, including the then applicable Conversion Rate.

 

Section
13. Replacement Certificates. The Company shall replace any mutilated certificate at the holder's expense upon surrender
of that certificate to the Company. The Company shall replace certificates that become destroyed, stolen or lost at the holder's
expense upon delivery to the Company of reasonably satisfactory evidence that the certificate has been destroyed, stolen or lost,
together with any indemnity that may be required by the Company.

 

Section
14. Other Rights. The shares of Series B Preferred Stock shall not have any rights, preferences, privileges or voting powers
or relative, participating, optional or other special rights, or qualifications, limitations or restrictions thereof, other than
as set forth herein or in the Certificate of Incorporation or as provided by applicable law and regulation.

 

Section
15. Further Assurances. The Company shall take such actions as are reasonably required in order for the Company to satisfy
its obligations under this Certificate of Designations, including, without limitation, using reasonable best efforts in obtaining
the approval of the holders of any class or series of Capital Stock or making any filings, in each case as required pursuant to
applicable law or the listing requirements (if any) of any national securities exchange on which any class or series of Capital
Stock is then listed or traded. The Company further agrees to cooperate with the holders of Series B Preferred in the making of
any filings under applicable law that are to be made by the Company or any such holder in connection with the exercise of any
such holder's rights hereunder.

 

    	13

    	 

    

 

IN
WITNESS WHEREOF, the Company has caused this Certificate of Designations to be duly executed and acknowledged by its undersigned
duly authorized officer this 3rd day of May, 2017.

 

	 	HOUSTON AMERICAN ENERGY CORP.
	 	By:	 
	 	Name:	John
    P. Boylan
	 	Title:	President
    and Chief Executive Officer

 

    	14NEITHER
THIS WARRANT REPRESENTED BY THIS CERTIFICATE NOR THE SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE OF THIS WARRANT HAVE BEEN
REGISTERED OR QUALIFIED FOR SALE UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY SECURITIES LAWS. NEITHER THIS WARRANT NOR
THE SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE OF THIS WARRANT MAY BE SOLD OR TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION
OF THE SECURITIES UNDER SAID ACT AND ANY OTHER APPLICABLE SECURITIES LAWS, OR RECEIPT BY THE COMPANY OF AN OPINION OF COUNSEL
OR OTHER EVIDENCE ACCEPTABLE TO THE COMPANY THAT SUCH SALE OR TRANSFER OF SUCH SECURITIES IS EXEMPT FROM REGISTRATION UNDER THE
ACT AND ANY OTHER APPLICABLE SECURITIES LAWS.

 

WARRANT
to Purchase COMMON SHARES of

 

HOUSTON
AMERICAN ENERGY CORP.

 

	No. 2017-___
	May 3, 2017

 

THIS
CERTIFIES that, for value received, ______________________________________ (together with its successors and assigns, the “Holder”)
is entitled, subject to the terms and conditions set forth below, to subscribe for and purchase ___________________________________________________________
(___________) fully paid and non-assessable Common Shares (as defined below) of Houston American Energy Corp., a Delaware corporation
(together with its successors and assigns, the “Company”), subject to adjustment in accordance with Section
2.7, at a purchase price per Common Share equal to $0.43 per share (the “Exercise Price”).

 

This
warrant (this “Warrant”) is exercisable on or after the date hereof and expires at 5:00 p.m., Houston, Texas
time, on the Expiration Date (as defined below).

 

This
Warrant is one of a series of Warrants issued as part of units with 12.0% Series B Convertible Preferred Stock of the Company
pursuant to Securities Purchase Agreements, dated on or about the date hereof, between the Company and the initial Holders.

 

ARTICLE
I

Definitions

 

1.1
Definitions. As used herein, the following terms shall have the meanings set forth below:

 

“Commission”
shall mean the U.S. Securities and Exchange Commission or any other United States Federal agency administering the Securities
Act and/or the Exchange Act at the time.

 

“Common
Shares” shall mean and include the shares of common stock of the Company, par value $0.001 per share, or any such other
securities (equity or debt) into which or for which such shares are converted, substituted or exchanged.

 

“Company”
shall have the meaning set forth in the introduction hereto.

 

“Convertible
Securities” shall mean debt instruments, units, interests or other securities which are convertible into or exercisable
or exchangeable for, with or without payment of additional consideration in cash or property into, Common Shares, either immediately
or upon a specified date or the happening of a specified event.

 

“Exchange
Act” shall mean the Securities Exchange Act of 1934, as amended, or any successor Federal statute, and the rules and
regulations of the Commission promulgated thereunder, all as the same shall be in effect from time to time.

 

“Exercise
Date” shall have the meaning set forth in Section 2.1.

 

“Exercise
Price” shall have the meaning set forth in the preamble hereto, as may be adjusted from time to time.

 

“Expiration
Date” shall mean the date that is 9 months from the date of issuance of this Warrant.

 

“Holder”
shall have the meaning set forth in the preamble hereto.

 

    	HUSA – Warrant (2017 Unit Offering)	 

    	 

    

 

“Registrable
Securities” shall mean (i) the Warrant Shares (whether or not the related Warrants have been exercised) and (ii) any
other securities issued or issuable with respect to the Warrants or Warrant Shares by way of stock dividends or stock split or
in connection with a combination of shares, recapitalization, merger, consolidation or other reorganization or otherwise. As to
any particular Registrable Securities, once issued such securities shall cease to be Registrable Securities when (A) they are
sold pursuant to an effective Registration Statement under the Securities Act, (B) they are sold pursuant to Rule 144 (or any
similar provision then in force under the Securities Act) and the transferee thereof does not receive “restricted securities”
as defined in Rule 144, (C) they have been sold in a private transaction in which the transferor’s rights under this Agreement
are not assigned to the transferee of the securities in accordance with Section 3.3 of this Warrant, or (D) they become eligible
for resale pursuant to Rule 144(d) (or any similar rule then in effect). No Registrable Securities may be registered under more
than one Registration Statement at any one time.

 

“Securities
Act” shall mean the United States Securities Act of 1933, as amended, or any successor United States Federal statute,
and the rules and regulations of the Commission promulgated thereunder, all as the same shall be in effect from time to time.

 

“Warrant”
shall have the meaning set forth in the introduction hereto.

 

“Warrant
Office” shall have the meaning set forth in Section 3.1.

 

“Warrant
Shares” shall mean the Common Shares into which this Warrant may be exercised.

 

1.2
Accounting Terms and Determinations. Except as otherwise expressly provided herein, all accounting terms used herein shall
be interpreted, and all financial statements and certificates and reports as to financial matters required to be delivered to
the Holder hereunder shall be prepared, in accordance with accounting principles generally accepted in the United States (“GAAP”).
All calculations made for the purposes of determining compliance with the terms of this Warrant shall (except as otherwise expressly
provided herein) be made by application of GAAP.

 

1.3
Rules of Construction. The title of and the section and paragraph headings in this Warrant are for convenience of reference
only and shall not govern or affect the interpretation of any of the terms or provisions of this Warrant. The use herein of the
masculine, feminine or neuter forms shall also denote the other forms, as in each case the context may require. Where specific
language is used to clarify by example a general statement contained herein, such specific language shall not be deemed to modify,
limit or restrict in any manner the construction of the general statement to which it relates. The language used in this Warrant
has been chosen by the parties to express their mutual intent, and no rule of strict construction shall be applied against any
party. In the case of this Warrant, (a) the meanings of defined terms are equally applicable to the singular and plural forms
of the defined terms; (b) Annex, Exhibit, Schedule and Section references are to this Warrant unless otherwise specified; (c)
the term “including” is not limiting and means “including but not limited to”; (d) in the computation
of periods of time from a specified date to a later specified date, the word “from” means “from and including”
the words “to” and “until” each mean “to but excluding,” and the word “through”
means “to and including”; (e) unless otherwise expressly provided in this Warrant, (i) references to agreements and
other contractual instruments shall be deemed to include all subsequent amendments and other modifications thereto, but only to
the extent such amendments and other modifications are not prohibited by the terms of the Warrant, and (ii) references to any
statute or regulation shall be construed as including all statutory and regulatory provisions amending, replacing, supplementing
or interpreting such statute or regulation; and (f) this Warrant may use several different limitations, tests or measurements
to regulate the same or similar matters, all of which are cumulative and each shall be performed in accordance with its terms.

 

    	HUSA – Warrant (2017 Unit Offering)	2

    	 

    

 

ARTICLE
II

Exercise of Warrants

 

2.1
Method of Exercise.

 

(a)
This Warrant may be exercised in whole or in part by the Holder hereof at any time on or after the date hereof, and from time
to time, before 5:00 p.m., Houston, Texas time, on the Expiration Date. To exercise this Warrant, the Holder hereof shall deliver
to the Company, at the Warrant Office designated herein, (i) a written notice in the form of the Subscription Notice attached
as Exhibit A hereto, stating therein the election of such Holder to exercise this Warrant in the manner provided in the
Subscription Notice, (ii) payment in full of the Exercise Price as provided in Section 2.1(b), and (iii) this Warrant.
This Warrant shall be deemed to be exercised on the date of receipt by the Company of the Subscription Notice, accompanied by
payment for the Warrant Shares and surrender of this Warrant, and such date is referred to herein as the “Exercise Date.”
If the Holder exercises this Warrant as set forth herein, then the Company shall, as promptly as practicable and in any event
within 5 business days after the Exercise Date, issue and deliver, or cause to be issued and delivered, to such Holder a certificate
or certificates for the full number of Warrant Shares set forth in the Subscription Agreement. As permitted by applicable law,
the Person in whose name the certificates for Common Shares are to be issued shall be deemed to have become a holder of record
of such Common Shares on the Exercise Date and shall be entitled to all of the benefits of such holder on the Exercise Date, including
the right to receive dividends and other distributions for which the record date falls on or after the Exercise Date and to exercise
voting rights.

 

(b)
The Holder shall pay the Exercise Price for all Warrant Shares purchased hereunder in full in cash or by certified check or wire
transfer of immediately available funds.

 

2.2
Warrant Shares. The maximum number of Common Shares that Holder is entitled to purchase hereunder shall be _________ shares,
as may be adjusted, on the terms and conditions set forth herein.

 

2.3
Expenses and Taxes. The Company shall pay all expenses and taxes (including all documentary, stamp, transfer or other transactional
taxes) attributable to the preparation, issuance or delivery of this Warrant and of the Common Shares issuable upon exercise of
this Warrant, other than income taxes.

 

2.4
Reservation of Common Shares. So long as this Warrant remains outstanding, the Company shall reserve, free from preemptive
or similar rights, out of its authorized but unissued Common Shares, and solely for the purpose of effecting the exercise of this
Warrant, a sufficient number of Common Shares to provide for the exercise of this Warrant.

 

2.5
Valid Issuance. All Common Shares issued upon exercise of this Warrant will, upon payment of the Exercise Price and issuance
by the Company, be duly authorized, validly and legally issued, fully paid and nonassessable and free and clear of all taxes,
liens, security interests, charges and other encumbrances or restrictions with respect to the issuance thereof and, without limiting
the generality of the foregoing, the Company shall take all actions necessary to ensure such result and shall not take any action
which will cause a contrary result.

 

2.6
Acknowledgment of Rights. At the time of the exercise of this Warrant in accordance with the terms hereof and upon the
written request of the Holder hereof, the Company will acknowledge in writing its continuing obligation to afford to such Holder
any rights to which such Holder shall continue to be entitled after such exercise in accordance with the provisions of this Warrant;
provided, however, that if the Holder hereof shall fail to make any such request, such failure shall not affect the continuing
obligation of the Company to afford to such Holder any such rights.

 

2.7
Adjustment of Number of Shares. To prevent dilution of the rights granted under this Warrant, the Exercise Price and the
number of Common Shares purchasable hereunder are subject to adjustment from time to time as follows:

 

(a)
Conversion or Redemption of Common Shares. Should all of the Common Shares be at any time prior to the Expiration Date
redeemed, exchanged, substituted or converted into shares or any other security of the Company, then this Warrant shall become
immediately exercisable prior to such event for that number of Common Shares equal to the number of Common Shares that would have
been received if this Warrant had been exercised in full and the Common Shares received thereupon had been simultaneously converted
immediately prior to such event, and the Exercise Price shall immediately be adjusted to equal the quotient obtained by dividing
(i) the aggregate Exercise Price of the maximum number of shares of Common Shares for which this Warrant was exercisable immediately
prior to such conversion, exchange, substitution or redemption, by (ii) the number of shares of Common Shares for which this Warrant
is exercisable immediately after such conversion, exchange, substitution or redemption.

 

    	HUSA – Warrant (2017 Unit Offering)	3

    	 

    

 

(b)
Offer. If at any time while this Warrant, or any portion hereof, is outstanding and unexpired there shall be an offer for
all of the Common Shares whether in the form of cash, securities or otherwise, then, as a part of such offer, lawful provision
shall be made so that the Holder of this Warrant shall thereafter be entitled to receive upon exercise of this Warrant, during
the period specified herein and upon payment of the Exercise Price then in effect, the number of shares or other securities of
the offeror that a holder of the Common Shares issuable upon exercise of this Warrant would have been entitled to receive in such
offer if this Warrant had been exercised immediately before such offer, all subject to further adjustment as provided in this
Section 2.7. The foregoing provisions of this Section 2.7(b) shall similarly apply to successive offers and to the
shares that are at the time receivable upon the exercise of this Warrant. If the per-share consideration payable to the Holder
hereof for shares in connection with any such offer is in a form other than cash or marketable securities, then the value of such
consideration shall be determined in good faith by the Company’s Board of Directors. In all events, appropriate adjustment
(as determined in good faith by the Company’s Board of Directors) shall be made in the application of the provisions of
this Warrant with respect to the rights and interests of the Holder after the transaction, to the end that the provisions of this
Warrant shall be applicable after that event, as near as reasonably may be, in relation to any shares or other property deliverable
after that event upon exercise of this Warrant.

 

(c)
Reclassification. If the Company, at any time while this Warrant, or any portion hereof, remains outstanding and unexpired
by reclassification of securities or otherwise, shall change any of the securities as to which purchase rights under this Warrant
exist into the same or a different number of securities of any other class or classes, this Warrant shall thereafter represent
the right to acquire such number and kind of securities as would have been issuable as the result of such change with respect
to the securities that were subject to the purchase rights under this Warrant immediately prior to such reclassification or other
change and the Exercise Price therefor shall be appropriately adjusted, all subject to further adjustment as provided in this
Section 2.7. No adjustment shall be made pursuant to this Section 2.7(c), upon any conversion, exchange, substitution
or redemption of the Common Shares that is the subject of Section 2.7(a).

 

(d)
Split, Subdivision or Combination of Shares. If the Company at any time while this Warrant, or any portion hereof, remains
outstanding and unexpired shall split, subdivide or consolidate the securities as to which purchase rights under this Warrant
exist, into a different number of securities of the same class, the Exercise Price for such securities shall be proportionately
decreased in the case of a split or subdivision or proportionately increased in the case of a combination and the number of Common
Shares issuable upon exercise of this Warrant shall be proportionately adjusted such that the aggregate Exercise Price of all
Common Shares issuable upon exercise of this Warrant shall remain unchanged.

 

(e)
Adjustments for Dividends in Shares or Other Securities or Property. If while this Warrant remains outstanding and unexpired,
the holders of the securities as to which purchase rights under this Warrant exist at the time shall have received, or, on or
after the record date fixed for the determination of eligible shareholders, shall have become entitled to receive, without payment
therefor, other or additional shares or other securities or property (other than cash) of the Company by way of dividend, then
and in each case, this Warrant shall represent the right to acquire, in addition to the number of shares of the security receivable
upon exercise of this Warrant, and without payment of any additional consideration therefor, the amount of such other or additional
shares or other securities or property (other than cash) of the Company that such holder would hold on the date of such exercise
had it been the holder of record of the security receivable upon exercise of this Warrant on the date hereof and had thereafter,
during the period from the date hereof to and including the date of such exercise, retained such shares and/or all other additional
shares available by it as aforesaid during such period, giving effect to all adjustments called for during such period by the
provisions of this Section 2.7.

 

    	HUSA – Warrant (2017 Unit Offering)	4

    	 

    

 

(f)
Other Dilutive Events. In case any event shall occur as to which the provisions of this Section 2.7 are not strictly
applicable, but the failure to make any adjustment would not fairly protect the purchase rights presented by the Warrants in accordance
with the essential intent and principles of this Section 2.7, then, in each such case, the Company shall make a good faith
adjustment to the Exercise Price and the number of Common Shares in accordance with the intent of this Section 2.7 and,
upon the written request of the Holder, shall appoint an independent financial expert, which shall give their opinion upon the
adjustment, if any, on a basis consistent with the essential intent and principles of this Section 2.7.

 

(g)
Certificate as to Adjustments. Upon the occurrence of each adjustment or readjustment pursuant to this Section 2.7,
the Company at its expense shall promptly compute such adjustment or readjustment in accordance with the terms hereof and furnish
to each Holder of this Warrant a certificate setting forth such adjustment or readjustment and showing in detail the facts upon
which such adjustment or readjustment is based. The Company shall, upon the written request, at any time, of any such Holder,
furnish or cause to be furnished to such Holder a like certificate setting forth: (i) such adjustments and readjustments, (ii)
the Exercise Price at the time in effect, and (iii) the number of shares and the amount, if any, of other property that at the
time would be received upon the exercise of the Warrant.

 

(h)
No Impairment. The Company will not, by any voluntary action, avoid or seek to avoid the observance or performance of any
of the terms to be observed or performed hereunder by the Company, but will at all times in good faith assist in the carrying
out of all the provisions of this Section 2.7 and in the taking of all such action as may be necessary or appropriate in
order to protect the rights of the Holder of this Warrant against impairment.

 

2.8
No Fractional Common Shares. The Company shall not be required to issue any fractional Common Share on the exercise of
this Warrant. The number of full Common Shares which shall be issuable upon such exercise shall be computed on the basis of the
aggregate number of whole Common Shares purchasable on exercise of this Warrant so presented. If any fraction of a Common Shares
would, except for the provisions of this Section 2.8, be issuable on the exercise of this Warrant, the Company shall round
up the total number of Common Shares purchasable hereunder to the next whole Common Share.

 

ARTICLE
III

Transfer

 

3.1
Warrant Office. The Company shall maintain an office for certain purposes specified herein (the “Warrant Office”),
which office shall be the Company’s principal executive offices, and may subsequently be such other office of the Company
or of any transfer agent of the Common Shares as to which written notice has previously been given to the Holder. The Company
shall maintain, at the Warrant Office, a register for this Warrant in which the Company shall record (a) the name and address
of the Person in whose name this Warrant has been issued (as well as the name and address of each permitted assignee of the rights
of the registered owner hereof) and (b) the number of Warrant Shares issuable upon the exercise or exchange hereof.

 

3.2
Ownership of Warrant. The Company may deem and treat the Person in whose name this Warrant is registered as the Holder
and owner hereof until provided with written notice to the contrary.

 

3.3
Restrictions on Transfer of Warrant.

 

(a)
The Warrant and the Warrant Shares are not transferable directly or indirectly, in whole or in part, except in the case of any
transfer that is in compliance with applicable U.S. federal and state securities laws, including the Securities Act. Any transfers
of the Warrant will be without charge to the Holder except that any securities transfer taxes due on transfer of the Warrant will
be paid by Holder. Restrictive legends setting forth the above restrictions on transfer will be set forth on any Warrant Shares
issued on exercise of the Warrant.

 

(b)
Subject to Section 3.3(a), the Holder may assign, convey or transfer this Warrant and any rights hereunder without the
prior written consent of the Company to any person that directly, or indirectly through one or more intermediaries, controls,
is controlled by, or is under common control with the Holder or the parent of the Holder, or a successor in interest to the Holder
which acquires the voting control of the Holder or all or substantially all of the Holder’s assets. The rights and obligations
of the Company and the Holder under this Warrant shall be binding upon and benefit their respective permitted successors, assigns,
heirs, administrators and transferees.

 

    	HUSA – Warrant (2017 Unit Offering)	5

    	 

    

 

ARTICLE
IV

Miscellaneous

 

4.1
Entire Agreement. This Warrant contains the entire agreement between the Holder hereof and the Company with respect to
the Warrant Shares purchasable upon exercise hereof and the related transactions and supersede all prior arrangements or understandings
with respect thereto.

 

4.2
Governing Law. This Warrant shall be a contract made under and governed by the internal laws of the State of Texas applicable
to contracts made and to be performed entirely within such state, without regard to conflict of law principles.

 

4.3
Waiver and Amendment. Any term or provision of this Warrant may be waived at any time by the party which is entitled to
the benefits thereof. Any term or provision of this Warrant may be amended or supplemented at any time by agreement of the Holder
hereof and the Company. Any waiver of any term or condition, or any amendment or supplementation, of this Warrant shall be in
writing. A waiver of any breach or failure to enforce any of the terms or conditions of this Warrant shall not in any way affect,
limit or waive a party’s rights hereunder at any time to enforce strict compliance thereafter with every term or condition
of this Warrant.

 

4.4
Severability. In the event that any one or more of the provisions contained in this Warrant shall be determined to be invalid,
illegal or unenforceable in any respect for any reason, the validity, legality and enforceability of any such provision in any
other respect and the remaining provisions of this Warrant shall not, at the election of the party for whom the benefit of the
provision exists, be in any way impaired.

 

4.5
Copy of Warrants. A copy of this Warrant shall be filed among the records of the Company.

 

4.6
Notice. Any notice or other document required or permitted to be given or delivered to the Holder hereof shall be in writing
and delivered at, or sent by certified or registered mail or by facsimile to such Holder at, the last address shown on the books
of the Company maintained at the Warrant Office for the registration of this Warrant or at any more recent address of which the
Holder hereof shall have notified the Company in writing. Any notice or other document required or permitted to be given or delivered
to the Company, other than such notice or documents required to be delivered to the Warrant Office, shall be delivered at, or
sent by certified or registered mail or by facsimile to, the Warrant Office.

 

4.7
Limitation of Liability; Rights as a Shareholder. No provision hereof, in the absence of affirmative action by the Holder
hereof to purchase Common Shares, and no mere enumeration herein of the rights or privileges of the Holder hereof, shall give
rise to any liability of such Holder for the purchase price of any Common Shares or as a shareholder of the Company, whether such
liability is asserted by the Company or by creditors of the Company. Except as otherwise provided herein, this Warrant does not
confer upon the Holder any right to vote or consent to or to receive notice as a shareholder of the Company, in respect of any
matters whatsoever.

 

4.8
Exchange, Loss, Destruction, etc. of Warrant. Upon receipt of evidence reasonably satisfactory to the Company of the loss,
theft, mutilation or destruction of this Warrant, and in the case of any such loss, theft or destruction upon delivery of an appropriate
affidavit in such form as shall be reasonably satisfactory to the Company and include reasonable indemnification of the Company,
or in the event of such mutilation upon surrender and cancellation of this Warrant, the Company will make and deliver a new Warrant
of like tenor, in lieu of such lost, stolen, destroyed or mutilated Warrant. Any Warrant issued under the provisions of this Section
4.8 in lieu of any Warrant alleged to be lost, destroyed or stolen, or in lieu of any mutilated Warrant, shall constitute
an original contractual obligation on the part of the Company. This Warrant shall be promptly canceled by the Company upon the
surrender hereof in connection with any exchange or replacement. The Company shall pay all taxes (other than securities transfer
taxes or income taxes) and all other expenses and charges payable in connection with the preparation, execution and delivery of
Warrants pursuant to this Section.

 

[The
Remainder of this Page Intentionally Left Blank]

 

    	HUSA – Warrant (2017 Unit Offering)	6

    	 

    

 

IN
WITNESS WHEREOF, the Company has caused this Warrant to be signed in its name.

 

Dated:
May 3, 2017.

 

	 	HOUSTON AMERICAN ENERGY CORP.
	 	 	 
	 	By:	 
	 	Name:	John
    P. Boylan
	 	Title:	President

 

THIS
IS A SIGNATURE PAGE TO THE WARRANT 

 

    	HUSA – Warrant (2017 Unit Offering)	 

    	 

    

 

EXHIBIT
A

 

SUBSCRIPTION
NOTice

 

Date:
_______________, 2017

 

Houston
American Energy Corp.

801
Travis St., Suite 1425

Houston,
TX 77002

Attention:
John P. Boylan

 

Ladies
and Gentlemen:

 

The
undersigned (the “Purchaser”) hereby elects to exercise this Warrant issued to it by Houston American Energy
Corp. (the “Company”) and dated as of May 3, 2017 (the “Warrant”) and to purchase thereunder
_____________ shares of Common Stock of the Company (the “Common Shares”) at a purchase price of $0.43 per
Share, or an aggregate purchase price of $__________ (the “Purchase Price”).

 

In
connection with the exercise of the Warrant, the Purchaser hereby represents, warrants, covenants and agrees as follows:

 

(a)
Accredited Investor. The Purchaser is an “accredited investor” within the meaning of Rule 501 of Regulation
D under the Securities Act of 1933, as amended (together with the rules and regulations promulgated by the Securities and Exchange
Commission thereunder, the “Securities Act”).

 

(a)
Investment Experience. The Purchaser has sufficient knowledge and experience in business, financial and investment matters
so as to be able to evaluate the risks and merits of its investment in the Company and it is able financially to bear the risks
thereof.

 

(b)
Company Information; No General Solicitation. The Purchaser had access to such information regarding the Company and its
affairs as is necessary to enable it to evaluate the merits and risks of an investment in restricted securities of the Company
and has had a reasonable opportunity to ask questions and receive answers and documents concerning the Company and its current
and proposed operations, financial condition, business, business plans and prospects. The Purchaser has not been offered any of
the Common Shares by any means of general solicitation or advertising.

 

(c)
Acquisition for Own Account. The Common Shares being issued to and acquired by the Purchaser are being acquired by it for
its own account for the purpose of investment and not with a view to, or for resale in connection with, any distribution thereof.
The Purchaser understands that it must bear the economic risk of such investment indefinitely, and hold the Common Shares indefinitely,
unless a subsequent disposition of the Common Shares is registered pursuant to the Securities Act, or an exemption from such registration
is available. The Purchaser further understands that there is no assurance that any exemption from the Securities Act will be
available or, if available, that such exemption will allow it to dispose of or otherwise transfer any or all of the Common Shares
under the circumstances, in the amounts or at the times the Purchaser might propose.

 

(d)
Restricted Securities.

 

(i)
The Purchaser understands and acknowledges that none of the offer, issuance or sale of the Common Shares has been registered under
the Securities Act in reliance on an exemption from the registration requirements of the Securities Act.

 

    	HUSA – Warrant (2017 Unit Offering)	 

    	 

    

 

(ii)
The Purchaser understands and acknowledges that the Common Shares may be subject to additional restrictions on transfer under
state and/or federal securities laws.

 

Pursuant
to the terms of the Warrant, the undersigned has delivered the Purchase Price herewith in full in cash, by certified check or
wire transfer pursuant to the provisions thereof.

 

	 	Very truly yours,
	 	 	 
	 	[Holder]
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 

 

    	HUSA – Warrant (2017 Unit Offering)

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