================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C.  20549
                              ____________________

                                    FORM S-3

                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933
                              ____________________

                          HOUSTON AMERICAN ENERGY CORP.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

              DELAWARE                                           76-0675953
              --------                                           ----------
     (STATE OR JURISDICTION OF                                 (IRS EMPLOYER
   INCORPORATION OR ORGANIZATION)                            IDENTIFICATION NO.)

                          801 TRAVIS STREET, SUITE 2020
                              HOUSTON, TEXAS 77002
                                 (713) 222-6966
                                 --------------
          (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING
             AREA CODE OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)

                              MR. JOHN TERWILLIGER
                          801 TRAVIS STREET, SUITE 2020
                              HOUSTON, TEXAS 77002
                                 (713) 222-6966
                                 --------------
            (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)

                                 with a copy to:

                            MICHAEL SANDERS, ESQUIRE
                            20333 S.H. 249, SUITE 600
                              HOUSTON, TEXAS 77070
                                 (832) 446-2599

     APPROXIMATE  DATE  OF  PROPOSED SALE TO THE PUBLIC:  As soon as practicable
after  the  effective  date  of  this  registration  statement.

                              ____________________

     If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [_]

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]

     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]_____________________



     If  this  Form  is a post-effective amendment filed pursuant to Rule 462(c)
under  the  Securities  Act, check the following box and list the Securities Act
registration  statement  number  of the earlier effective registration statement
for  the  same  offering:  [_]____________________

     If  delivery of the prospectus is expected to be made pursuant to Rule 434,
please  check  the  following  box:  [_]



                                    CALCULATION OF REGISTRATION FEE

======================================================================================================
Title of Each Class                       Proposed Maximum      Proposed Maximum        Amount of
of Securities to be     Amount to be     Offering Price Per    Aggregate Offering    Registration Fee
Registered               Registered            Share                 Price
====================  ================  ====================  ====================  ==================
                                                                        
8% Subordinated       $   2,125,000(1)               100%(2)  $       2,125,000(2)  $          250.11 
Convertible
Promissory Notes
--------------------  ----------------  --------------------  --------------------  ------------------
Common Stock,          2,125,000(3)(4)            (5)                  (5)                  (5)
0.001 par value
--------------------  ----------------  --------------------  --------------------  ------------------
Common Stock,            191,250(4)(6)  $            1.00(7)  $           191,250   $           22.51 
0.001 par value
--------------------  ----------------  --------------------  --------------------  ------------------
          Total                                               $         2,316,250   $          272.62 
======================================================================================================


(1)  Represents the aggregate principal amount of the 8% Subordinated
     Convertible Promissory Notes issued by Houston American Energy Corp. prior
     to the date of this registration statement.
(2)  Estimated solely for the purpose of calculating the registration fee
     pursuant to Rule 457(i) under the Securities Act.
(3)  Consists of shares issuable upon conversion of the 8% Subordinated
     Convertible Promissory Notes registered hereby.
(4)  Pursuant to Rule 416 under the Securities Act, includes an
     indeterminate number of shares issuable pursuant to anti-dilution
     provisions.
(5)  No additional consideration will be received upon conversion of the 8%
     Subordinated Convertible Promissory Notes. Pursuant to Rule 457(i) under
     the Securities Act, there is no filing fee with respect to the shares of
     common stock issuable upon conversion of the 8% Subordinated Convertible
     Promissory Notes because no additional consideration will be received upon
     conversion.
(6)  Consists of shares issuable upon exercise of placement agent warrants.
(7)  Estimated solely for purpose of calculating the registration fee
     pursuant to Rule 457(g) under the Securities Act.

                           ___________________________

     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
===========================================================================



The information in this prospectus is not complete and may be changed. The
selling securityholders may not sell these securities until the registration
statement filed with the Securities and Exchange Commission is effective. This
prospectus is not an offer to sell these securities and it is not soliciting an
offer to buy these securities in any state where the offer or sale is not
permitted.

PRELIMINARY PROSPECTUS                       SUBJECT TO COMPLETION JULY 15, 2005

                          HOUSTON AMERICAN ENERGY CORP.
                               ___________________

           $2,125,000 of 8% Subordinated Convertible Promissory Notes
                        2,316,250 Shares of Common Stock

     This prospectus covers resales by selling securityholders of our 8%
Subordinated Convertible Promissory Notes due 2010 and shares of our common
stock into which the Notes are convertible.  This prospectus also covers resales
by selling securityholders of shares of our common stock underlying warrants
issued to a placement agent in connection with the placement of the Notes.

     The Notes will mature on May 1, 2010. We will pay interest on the Notes
each April 20 and October 20. We will make the first interest payment on October
20, 2005.

     We do not have the right to redeem the Notes at our option prior to May 1,
2007.

     The Notes are convertible into our common stock at any time before May 1,
2010 at a conversion price of $1.00 per share, subject to adjustment for
specified events.

     Holders may require us to repurchase their Notes upon the occurrence of
certain designated events in cash at 100% of the principal amount of the Notes
being repurchased, plus accrued and unpaid interest, if any.

     The Notes are subordinated unsecured obligations and rank, in right of
payment, junior to all of our existing and future unsecured indebtedness except
for future indebtedness specifically designated as being equal or subordinate to
the Notes. The Notes will be effectively subordinated to any secured
indebtedness.

     The selling securityholders may sell all or a portion of their securities
through public or private transactions at prevailing market prices or at
privately negotiated prices.  We will not receive any part of the proceeds from
the sale of these shares by the selling securityholders.

     Our common stock is traded on the OTC Electronic Bulletin Board under the
symbol "HUSA.OB".  The last reported sale price of our common stock on the OTC
Electronic Bulletin Board on July 15, 2005 was $1.00 per share.  There is no
trading market in our Notes.

     INVESTING IN OUR COMMON STOCK AND NOTES INVOLVES A HIGH DEGREE OF RISK. SEE
"RISK FACTORS" BEGINNING ON PAGE 5 OF THIS PROSPECTUS.

     THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
AND EXCHANGE COMMISSION NOR HAS THE COMMISSION PASSED UPON THE ACCURACY OR
ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
OFFENSE.

                       PROSPECTUS DATED      , 2005



     We will pay all expenses of this offering except for commissions, fees and
discounts of any underwriters, brokers, dealers or agents retained by the
selling securityholders.  Estimated expenses payable in connection with this
offering are approximately $25,000.  The aggregate proceeds to the selling
securityholders will be the purchase price of common stock or Notes sold less
the aggregate agents' commissions and underwriters' discounts, if any.  We have
agreed to indemnify the selling securityholders and certain other persons
against certain liabilities, including liabilities under the Securities Act.

     NO DEALER, SALESPERSON OR OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION NOT CONTAINED IN THIS PROSPECTUS IN
CONNECTION WITH THE OFFERING COVERED BY THIS PROSPECTUS.  IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY US.  THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION
OF AN OFFER TO BUY, THE COMMON STOCK OR THE NOTES IN ANY JURISDICTION WHERE, OR
TO ANY PERSON TO WHOM, IT IS UNLAWFUL TO MAKE SUCH OFFER OR SOLICITATION.
NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE HEREUNDER SHALL, UNDER ANY
CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS NOT BEEN ANY CHANGE IN THE
FACTS SET FORTH IN THIS PROSPECTUS OR IN OUR AFFAIRS SINCE THE DATE HEREOF.



                                TABLE OF CONTENTS

                                              
             Available Information. . . . . . . . .  2

             Incorporation of Certain Documents by
             Reference. . . . . . . . . . . . . . .  3

             The Company. . . . . . . . . . . . . .  4

             Risk Factors . . . . . . . . . . . . .  4

             Use of Proceeds. . . . . . . . . . . . 11

             Selling Securityholders. . . . . . . . 12

             Plan of Distribution . . . . . . . . . 14

             Description of the Notes . . . . . . . 16

             Legal Matters. . . . . . . . . . . . . 21

             Experts. . . . . . . . . . . . . . . . 21


                              AVAILABLE INFORMATION

     We are subject to the reporting requirements of the Securities Exchange Act
of 1934, as amended (the "Exchange Act"), and, in accordance therewith, file
annual and quarterly reports, proxy statements and other information with the
Securities and Exchange Commission (the "Commission").  Such reports, proxy
statements and other information may be inspected and copied at the Commission's
Regional Offices at 7 World Trade Center, 13th Floor, New York, New York 10048;
and 500 West Madison Street, Suite 1400, Chicago, Illinois 60661-2511.  Copies
of such material can be obtained at prescribed rates from the Public Reference
Section of the Commission at 100 F Street, N.E., Room 1580, Washington, D.C.
20549.  The Commission also maintains a World Wide Web site (http://www.sec.gov)
that contains reports, proxy and information statements and other information
regarding registrants, including Houston American Energy Corp., that file
electronically with the Commission.


                                        2

     This prospectus is part of a registration statement on Form S-3 with
respect to the common stock and 8% Subordinated Convertible Promissory Notes
(the "Notes") offered hereby (the "Registration Statement") that has been filed
with the Commission under the Securities Act of 1933, as amended (the
"Securities Act").  This prospectus does not contain all of the information
contained in such Registration Statement and the exhibits and schedules thereto,
certain portions of which have been omitted pursuant to the rules and
regulations of the Commission.  For further information with respect to our
company and the common stock and Notes offered hereby, reference is made to the
Registration Statement and the exhibits and schedules thereto.  Statements
contained in this prospectus regarding the contents of any contract or any other
document are not necessarily complete and, in each instance, reference is hereby
made to the copy of such contract or document filed as an exhibit to the
Registration Statement.  The Registration Statement, including the exhibits
thereto, may be inspected without charge at the Commissions' principal office in
Washington, D.C., and copies of all or any part thereof may be obtained from the
Public Reference Section, Securities and Exchange Commission, Washington, D.C.
20549, upon payment of the prescribed fees.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following documents, filed or to be filed with the Commission under the
Exchange Act are hereby incorporated by reference into this prospectus:

     (1)     Our Quarterly Report on Form 10-QSB for the quarter ended March 31,
2005;

     (2)     Our Annual Report on Form 10-KSB for the year ended December 31,
2004;

     (3)     Our Current Reports on Form 8-K filed on April 8, 2005 and May 10,
2005;

     (4)     The description of our securities included in the Form S-4
Registration Statement (SEC File No. 333-66638) filed on December 14, 2001; and

     (5)     All other reports filed pursuant to Section 13(a) or 15(d) of the
Exchange Act since the end of the fiscal year covered by the financial
statements included in our Form 10-KSB for the year ended December 31, 2004
referred to in (2) above.

     All documents filed by us pursuant to Section 13(a), 13(c), 14 or 15(d) of
the Exchange Act after the date of this prospectus and prior to the termination
of the offering shall be deemed to be incorporated by reference herein and to be
a part hereof from the date of filing such documents.  Any statements contained
in this prospectus or in a document incorporated or deemed to be incorporated by
reference herein shall be deemed to be modified or superseded for purposes of
this prospectus to the extent that a statement contained herein or in any
subsequently filed documents which also is or is deemed to be incorporated by
reference herein modifies or supersedes such statement.  Any such statement so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this prospectus.

     We will provide without charge to each person, including any beneficial
owner, to whom this prospectus has been delivered, upon written or oral request
of such person, a copy of any or all of the documents that have been
incorporated by reference herein (not including exhibits to such documents
unless such exhibits are specifically incorporated by reference herein or into
such documents).  Such requests may be directed to Mr. John Terwilliger, Chief
Executive Officer, Houston American Energy Corp., 801 Travis Street, Suite 2020,
Houston, Texas 77002, Telephone Number (713) 222-6966.


                                        3

                                   THE COMPANY

     Houston American Energy Corp. was formed in Delaware in April 2001.  We are
an oil and gas exploration and production company. Our activities are focused on
properties in the U.S. onshore Gulf Coast Region, principally Texas, and the
development of concessions in the South American country of Colombia. We seek to
utilize the contacts and experience of our sole executive officer, John F.
Terwilliger, to identify favorable drilling opportunities, to use advanced
seismic techniques to define prospects and to form partnerships and joint
ventures to spread the cost and risks to us of drilling.

     Our principal executive offices are located at 801 Travis Street, Suite
2020, Houston, Texas 77007 and our telephone number is (713) 222-6966.

                                  RISK FACTORS

     Investing in our securities involves risks. Before making an investment
decision, you should carefully consider the following risk factors, as well as
other information we include or incorporate by reference in this prospectus,
including, without limitation, the factors listed under the headings
"Description of Business - Risks Related to Our Oil and Gas Operations", "Legal
Proceedings", and "Controls and Procedures" in our Annual Report on Form 10-KSB
for the year ended December 31, 2004. Additional risks and uncertainties not
presently known to us or that we deem currently immaterial may also impair our
business operations. The risks and uncertainties described below are not the
only ones facing us. Additional risks and uncertainties that we are unaware of,
or that we currently deem immaterial, also may become important factors that
affect us. If any of the following risks occur, our business, financial
condition or results of operations could be materially and adversely affected.

RISKS RELATED TO THE OIL AND NATURAL GAS INDUSTRY AND OUR BUSINESS

A SUBSTANTIAL OR EXTENDED DECLINE IN OIL AND NATURAL GAS PRICES MAY ADVERSELY
AFFECT OUR BUSINESS, FINANCIAL CONDITION OR RESULTS OF OPERATIONS AND OUR
ABILITY TO MEET OUR CAPITAL EXPENDITURE OBLIGATIONS AND FINANCIAL COMMITMENTS.

     As an independent oil and gas producer, our revenue, profitability and
future rate of growth are substantially dependent upon the prevailing prices of,
and demand for, natural gas, oil, and condensate.  Our realized profits affect
the amount of cash flow available for capital expenditures.  Our ability to
maintain or increase our borrowing capacity and to obtain additional capital on
attractive terms is also substantially dependent upon oil and gas prices.
Prices for oil and natural gas are subject to wide fluctuation in response to
relatively minor changes in the supply of, and demand for, oil and gas, market
uncertainty and a variety of additional factors that are beyond our control.
Among the factors that can cause the volatility of oil and gas prices are:

     -    worldwide or regional demand for energy, which is affected by economic
          conditions;
     -    the domestic and foreign supply of natural gas and oil;
     -    weather conditions;
     -    domestic and foreign governmental regulations;
     -    political conditions in natural gas and oil producing regions;
     -    the ability of members of the Organization of Petroleum Exporting
          Countries to agree upon and maintain oil prices and production levels;
          and
     -    the price and availability of other fuels.


                                        4

A SUBSTANTIAL PERCENTAGE OF OUR PROPERTIES ARE UNDEVELOPED; THEREFORE THE RISK
ASSOCIATED WITH OUR SUCCESS IS GREATER THAN WOULD BE THE CASE IF THE MAJORITY OF
OUR PROPERTIES WERE CATEGORIZED AS PROVED DEVELOPED PRODUCING.

     Because a substantial percentage of our properties are unproven
(approximately 99%), or proved undeveloped, we will require significant
additional capital to prove and develop such properties before they may become
productive. Further, because of the inherent uncertainties associated with
drilling for oil and gas, some of these properties may never be developed to the
extent that they result in positive cash flow. Even if we are successful in our
development efforts, it could take several years for a significant portion of
our undeveloped properties to be converted to positive cash flow.

     While our current business plan is to fund the development costs with cash
flow from our other producing properties, if such cash flow is not sufficient we
may be forced to seek alternative sources for cash, through the issuance of
additional equity or debt securities, increased borrowings or other means.

DRILLING FOR AND PRODUCING OIL AND NATURAL GAS ARE HIGH RISK ACTIVITIES WITH
MANY UNCERTAINTIES THAT COULD ADVERSELY AFFECT OUR BUSINESS, FINANCIAL CONDITION
OR RESULTS OF OPERATIONS.

     Our development, exploitation and exploration activities may be
unsuccessful for many reasons, including weather, cost overruns, equipment
shortages and mechanical difficulties.  Moreover, the successful drilling of a
natural gas and oil well does not ensure a profit on investment.  A variety of
factors, both geological and market related can cause a well to become
uneconomical or only marginally profitable.  Our business involves a variety of
operating risks which may adversely affect our profitability, including:

     -    fires;
     -    explosions;
     -    blow-outs and surface cratering;
     -    uncontrollable flows of oil, natural gas and formation water;
     -    natural disasters, such as hurricanes and other adverse weather
          conditions;
     -    pipe, cement or pipeline failures;
     -    casing collapses;
     -    embedded oil field drilling and service tools;
     -    abnormally pressured formations; and
     -    environmental hazards, such as natural gas leaks, oil spills, pipeline
          ruptures and discharges of toxic gases.

     In accordance with industry practice, our insurance protects us against
some, but not all, operational risks.  Further, we do not carry business
interruption insurance at levels that would provide enough cash for us to
continue operating without access to additional funds.  As pollution and
environmental risks generally are not fully insurable, our insurance may be
inadequate to cover any losses or exposure for such liability.


                                        5

RESERVE ESTIMATES DEPEND ON MANY ASSUMPTIONS THAT MAY TURN OUT TO BE INACCURATE.
ANY MATERIAL INACCURACIES IN THESE RESERVE ESTIMATES OR UNDERLYING ASSUMPTIONS
WILL MATERIALLY AFFECT THE QUANTITIES AND PRESENT VALUE OF OUR RESERVES.

     In accordance with applicable requirements of the Securities and Exchange
Commission, we estimate our proved reserves and future net cash flows using
sales prices and costs estimated to be in effect as of the date we make the
reserve estimates. We hold the estimates constant throughout the life of the
properties, except to the extent a contract specifically provides for
escalation. Gas prices, which have fluctuated widely in recent years, affect
estimated quantities of proved reserves and future net cash flows. Any estimates
of natural gas and oil reserves and their values are inherently uncertain,
including many factors beyond our control. The reserve data contained in this
prospectus represent only estimates. Reservoir engineering is a subjective
process of estimating underground accumulations of natural gas and oil that
cannot be measured in an exact manner. The accuracy of reserve estimates is a
function of the quality of available data and of engineering and geological
interpretation and judgment. As a result, estimates of different engineers,
including those we use, may vary. In addition, estimates of reserves may be
revised based upon actual production, results of future development and
exploration activities, prevailing natural gas and oil prices, operating costs
and other factors, which revision may be material. Accordingly, reserve
estimates may be different from the quantities of natural gas and oil that we
are ultimately able to recover and are highly dependent upon the accuracy of the
underlying assumptions. Our estimated proved reserves have not been filed with
or included in reports to any federal agency.

WE ARE SUBJECT TO COMPLEX LAWS THAT CAN AFFECT THE COST, MANNER OR FEASIBILITY
OF DOING BUSINESS.

     Our business and the oil and gas industry in general are subject to
extensive laws and regulations, including environmental laws and regulations. As
such, we may be required to make large expenditures to comply with environmental
and other governmental regulations. State and federal regulations, including
those enforced by the Texas Railroad Commission as the primary regulator of the
oil and gas industry in the State of Texas, are generally intended to prevent
waste of oil and gas, protect rights to produce oil and gas between owners in a
common reservoir and control contamination of the environment. Matters subject
to regulation in the State of Texas include:

     -    location and density of wells;
     -    the handling of drilling fluids and obtaining discharge permits for
          drilling operations;
     -    accounting for and payment of royalties on production from state,
          federal and Indian lands;
     -    bonds for ownership, development and production of natural
          gas and oil properties;
     -    transportation of natural gas and oil by pipelines;
     -    operation of wells and reports concerning operations; and
     -    taxation

     Under these laws and regulations, we could be liable for personal injuries,
property damage, oil spills, discharge of hazardous materials, remediation and
clean-up costs and other environmental damages.  Failure to comply with these
laws and regulations also may result in the suspension or termination of our
operations and subject us to administrative, civil and criminal penalties.
Moreover, these laws and regulations could change in ways that substantially
increase our operating costs.

     Natural gas operations are subject to various types of regulation at the
federal, state and local levels.  Prior to commencing drilling activities for a
well, we are required to procure permits and/or approvals for the various stages
of the drilling process from the applicable state and local agencies. Permits
and approvals include those for the drilling of wells, and regulations including
maintaining bonding requirements in order to drill or operate wells and the
location of wells, the method of drilling and casing wells, the surface use and
restoration of properties on which wells are drilled, the plugging and
abandoning of wells, and the disposal of fluids used in connection with
operations.


                                        6

     Our operations are also subject to various conservation laws and
regulations. These include the regulation of the size of drilling and spacing
units and the density of wells, which may be drilled and the unitization or
pooling of natural gas properties. In this regard, some states allow the forced
pooling or integration of tracts to facilitate exploration while other states
rely primarily or exclusively on voluntary pooling of lands and leases. In areas
where pooling is voluntary, it may be more difficult to form units, and
therefore, more difficult to develop a project if the operator owns less than
100 percent of the leasehold.

OUR OPERATIONS MAY INCUR SUBSTANTIAL LIABILITIES TO COMPLY WITH THE
ENVIRONMENTAL LAWS AND REGULATIONS.

     Our operations are subject to additional laws and regulations governing the
discharge of materials into the environment or otherwise relating to
environmental protection.  Public interest in the protection of the environment
has increased dramatically in recent years.  It appears that the trend of more
expansive and stricter environmental legislation and regulations will continue.

     We generate wastes that may be subject to the Federal Resource Conservation
and Recovery Act ("RCRA") and comparable state statutes, which have limited the
approved methods of disposal for some hazardous wastes. Additional wastes may be
designated as "hazardous wastes" in the future, and therefore become subject to
more rigorous and costly operating and disposal requirements.  Although
management believes that we utilize good operating and waste disposal practices,
prior owners and operators of our properties may not have done so, and
hydrocarbons or other wastes may have been disposed of or released on or under
the properties owned or leased by us or on or under locations where wastes have
been taken for disposal.  These properties and the wastes disposed on the
properties may be subject to the Comprehensive Environmental Response,
Compensation and Liability Act ("CERCLA"), RCRA and analogous state laws, which
require the removal and remediation of previously disposed wastes, including
waste disposed of or released by prior owners or operators.

     CERCLA and similar state laws impose liability, without regard to fault or
the legality of the original conduct, on some classes of persons that are
considered to have contributed to the release of a "hazardous substance" into
the environment. These persons include the owner or operator of the disposal
site or sites where the release occurred and companies that disposed of or
arranged for the disposal of the hazardous substances found at the site. Persons
who are or were responsible for release of hazardous substances under CERCLA may
be subject to joint and several liability for the costs of cleaning up the
hazardous substances that have been released into the environment and for
damages to natural resources, and it is not uncommon for neighboring landowners
and other third parties to file claims for personal injury and property damage
allegedly caused by the hazardous substances released into the environment.

OUR OPERATIONS IN COLOMBIA ARE SUBJECT TO RISKS RELATING TO POLITICAL AND
ECONOMIC INSTABILITY.

     We currently have interests in four oil and gas concessions in Colombia and
anticipate that operations in Colombia will constitute a substantial element of
our strategy going forward.  The political climate in Colombia is unstable and
could be subject to radical change over a very short period of time.  In the
event of a significant negative change in the political or economic climate in
Colombia, we may be forced to abandon or suspend our operations in Colombia.


                                        7

OUR SUCCESS DEPENDS ON OUR MANAGEMENT TEAM AND OTHER KEY PERSONNEL, THE LOSS OF
ANY OF WHOM COULD DISRUPT OUR BUSINESS OPERATIONS.

     Our success will depend on our ability to retain John F. Terwilliger, our
sole director and executive officer, and to attract other experienced management
and non-management employees, including engineers, geoscientists and other
technical and professional staff. We will depend, to a large extent, on the
efforts, technical expertise and continued employment of such personnel and
members of our management team. If members of our management team should resign
or we are unable to attract the necessary personnel, our business operations
could be adversely affected.

COMPETITION IN THE OIL AND NATURAL GAS INDUSTRY IS INTENSE, WHICH MAY ADVERSELY
AFFECT OUR ABILITY TO COMPETE.

     Competition in the oil and gas industry is intense and we compete with
major and other independent oil and gas companies with respect to the
acquisition of producing properties and proved undeveloped acreage.  Our
competitors actively bid for desirable oil and gas properties, as well as for
the equipment and labor required to operate and develop the properties.  Many of
those competitors, however, have financial resources and exploration and
development budgets that are substantially greater than ours and may be able to
absorb the burden of any changes in federal, state and local laws and
regulations more easily than we can do so, which would adversely affect our
competitive position.  These competitors may be able to pay more for natural gas
and oil properties and may be able to define, evaluate, bid for and purchase a
greater number of properties than we can.  Our ability to acquire additional
properties and develop new and existing properties in the future will depend on
our capability to conduct operations, to evaluate and select suitable properties
and to consummate transactions in this highly competitive environment.

RISKS RELATED TO OUR COMMON STOCK AND NOTES

THE PRICE OF OUR COMMON STOCK, AND THEREFORE OF THE NOTES, MAY FLUCTUATE
SIGNIFICANTLY, AND THIS MAY MAKE IT DIFFICULT FOR YOU TO RESELL THE NOTES OR
COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES WHEN YOU WANT OR AT PRICES
YOU FIND ATTRACTIVE.

     The price of our common stock quoted on the OTCBB constantly changes. We
expect that the market price of our common stock will continue to fluctuate.  In
addition, because the Notes are convertible into our common stock, volatility or
depressed prices for our common stock could have a similar effect on the trading
price of the Notes.

     Our stock price may fluctuate as a result of a variety of factors, many of
which are beyond our control.  These factors include:

     -    quarterly variations in our operating results;
     -    operating results that vary from the expectations of management,
          securities analysts and investors;
     -    changes in expectations as to our future financial performance;
     -    announcements by us, our partners or our competitors of leasing
          and drilling activities;
     -    the operating and securities price performance of other companies
          that investors believe are comparable to us;
     -    future sales of our equity or equity-related securities;
     -    changes in general conditions in our industry and in the economy,
          the financial markets and the domestic or international political
          situation;
     -    fluctuations in oil and gas prices;


                                        8

     -    departures of key personnel; and
     -    regulatory considerations.

     In addition, in recent years, the stock market in general has experienced
extreme price and volume fluctuations.  This volatility has had a significant
effect on the market price of securities issued by many companies for reasons
often unrelated to their operating performance.  These broad market fluctuations
may adversely affect our stock price, regardless of our operating results.

THE SALE OF A SUBSTANTIAL NUMBER OF SHARES OF OUR COMMON STOCK MAY AFFECT OUR
STOCK PRICE.

     Future sales of substantial amounts of our common stock or equity-related
securities in the public market or privately, or the perception that such sales
could occur, could adversely affect prevailing trading prices of our common
stock and the value of the Notes and could impair our ability to raise capital
through future offerings of equity or equity-related securities.  No prediction
can be made as to the effect, if any, that future sales of shares of common
stock or the availability of shares of common stock for future sale, will have
on the trading price of our common stock or the value of the Notes.

THE RIGHTS OF HOLDERS OF OUR NOTES TO RECEIVE PAYMENTS ON THE NOTES ARE
EFFECTIVELY SUBORDINATED TO THE RIGHTS OF OUR EXISTING AND FUTURE SECURED AND/OR
SENIOR CREDITORS.

     Holders of our existing and future secured and/or senior indebtedness will
have claims that are prior to claims as holders of the Notes to the extent of
the value of the assets securing that other indebtedness.  As a result, the
Notes are subordinated to any such secured and/or senior indebtedness.  As of
December 31, 2004, $1 million of our debt was senior.  Upon any distribution to
our creditors in a bankruptcy, liquidation, reorganization or any similar
proceeding relating to us or our property, holders of our secured and/or senior
indebtedness will have a prior claim to those of our assets that constitute
their collateral.  Holders of the Notes will participate ratably with all
holders of our unsecured indebtedness that is deemed to be of the same class or
ranking as the notes based upon the respective amounts owed to each holder or
creditor, in our remaining assets.  In any of the foregoing events, we cannot
assure that there will be sufficient assets to pay amounts due on the Notes.  As
a result, holders of Notes may receive less, ratably, than holders of our
secured and/or senior indebtedness.

THE NOTES CONTAIN NO FINANCIAL COVENANTS AND PROVIDE ONLY LIMITED PROTECTION IN
THE EVENT CERTAIN SPECIFIED EVENTS OCCUR.

     The Notes contain no financial covenants.  In particular, the Notes contain
no covenants that limit our ability to pay dividends or make distributions on or
redeem our capital stock or incur additional debt and, therefore, protect
holders in the event of a highly leveraged or other similar transaction.  In
addition, the requirement that we offer to repurchase the Notes is limited to
certain specified events set out in the Notes.  Accordingly, we could enter into
certain transactions, such as acquisitions, refinancings or a recapitalization,
that could affect our business, financial condition, capital structure and the
value of our common stock but would not constitute such a specified event
entitling holders of Notes to require us to offer to repurchase the Notes.  Our
obligations to offer to redeem the Notes upon a designated event would not
necessarily afford holders protection in the event of a reorganization, merger
or similar transaction involving us.

THE REDEMPTION RIGHTS IN THE NOTES TRIGGERED BY A SPECIFIED EVENT COULD
DISCOURAGE A POTENTIAL ACQUIRER.

     The redemption rights in the Notes triggered by specified events could
discourage a potential acquirer.  The redemption feature is not the result of
management's knowledge of any specific effort to obtain control of us by means
of a merger, tender offer or solicitation, or part of a plan by management to
adopt a series of anti-takeover provisions.


                                        9

WE MAY BE UNABLE TO REPURCHASE THE NOTES FOR CASH WHEN REQUIRED BY THE HOLDERS,
INCLUDING FOLLOWING SPECIFIED EVENTS.

     Holders of the Notes have the right to require us to repurchase the Notes
upon the occurrence of specified events prior to maturity.  Any of our future
debt agreements may contain a similar provision.  We may not have sufficient
funds to make the required repurchase in cash at such time or the ability to
arrange necessary financing on acceptable terms.  In addition, our ability to
repurchase the Notes in cash may be limited by law or the terms of other
agreements relating to our debt outstanding at the time.  If we fail to
repurchase the Notes in cash as required by the Notes, it would constitute an
event of default under the Notes which, in turn, would also likely constitute an
event of default under our then existing debt instruments.

THERE IS CURRENTLY NO PUBLIC MARKET FOR THE NOTES, AND AN ACTIVE TRADING MARKET
MAY NOT DEVELOP FOR THE NOTES.  THE FAILURE OF A MARKET TO DEVELOP FOR THE NOTES
COULD ADVERSELY AFFECT THE LIQUIDITY AND VALUE OF THE NOTES.

     The Notes are a new issue of securities, and there is no existing market
for the notes.  We do not intend to list the Notes, on any securities exchange
or for quotation of the notes on any automated dealer quotation system.  A
market may not develop for the Notes, and we cannot assure you as to the
liquidity of any market that may develop for the Notes.  If an active, liquid
market does not develop for the Notes, the market price and liquidity of the
Notes may be adversely affected.  If any of the Notes are traded after their
initial issuance, they may trade at a discount from their initial offering
price.

     The liquidity of the trading market, if any, and future trading prices of
the Notes will depend on many factors, including, among other things, the market
price of our common stock, our ability to register the resale of the Notes and
the shares of our common stock issuable upon conversion of the Notes, prevailing
interest rates, our operating results, financial performance and prospects, the
market for similar securities and the overall securities market, and may be
adversely affected by unfavorable changes in these factors.  Historically, the
market for convertible debt securities has been subject to disruptions that have
caused volatility in prices.  It is possible that the market for the Notes will
be subject to disruptions that may have a negative effect on the holders of the
Notes, regardless of our operating results, financial performance or prospects.

THE NOTES ARE NOT RATED.

     The Notes are not, and do not expect them to be, rated.  However, if one or
more rating agencies rates the Notes and assigns the Notes a rating lower than
the rating expected by investors, or reduces its rating in the future, the
market price of the Notes and our common stock would likely decline.

THE CONVERSION RATE OF THE NOTES MAY NOT BE ADJUSTED FOR ALL DILUTIVE EVENTS,
INCLUDING THIRD-PARTY TENDER OR EXCHANGE OFFERS THAT MAY ADVERSELY AFFECT THE
TRADING PRICE OF THE NOTES OR THE SHARES OF OUR COMMON STOCK ISSUABLE UPON
CONVERSION OF THE NOTES.

     The conversion rate of the Notes is subject to adjustment upon certain
events, including the issuance of stock dividends on our common stock, the
issuance of rights or warrants, subdivisions, combinations, distributions of
capital stock.  The conversion rate will not be adjusted for certain other
events, such as third-party tender or exchange offers or the sale of our equity
securities or equity-linked securities to third parties, that may adversely
affect the trading price of the Notes or the shares of our common stock issuable
upon conversion of the Notes.


                                       10

OUR CHARTER AND BYLAWS, AS WELL AS PROVISIONS OF DELAWARE LAW, COULD MAKE IT
DIFFICULT FOR A THIRD PARTY TO ACQUIRE OUR COMPANY AND ALSO COULD LIMIT THE
PRICE THAT INVESTORS ARE WILLING TO PAY IN THE FUTURE FOR SHARES OF OUR COMMON
STOCK AND THE NOTES.

     Delaware corporate law and our charter and bylaws contain provisions that
could delay, deter or prevent a change in control of our company or our
management.  These provisions could also discourage proxy contests and make it
more difficult for our stockholders to elect directors and take other corporate
actions without the concurrence of our management or board of directors.  These
provisions:

     -    authorize our board of directors to issue "blank check" preferred
          stock, which is preferred stock that can be created and issued by our
          board of directors, without stockholder approval, with rights senior
          to those of our common stock;
     -    provide for a staggered board of directors and three-year terms
          for directors, so that no more than one-third of our directors could
          be replaced at any annual meeting;
     -    provide that directors may be removed only for cause; and
     -    establish advance notice requirements for submitting nominations
          for election to the board of directors and for proposing matters that
          can be acted upon by stockholders at a meeting.

     We are also subject to anti-takeover provisions under Delaware law, which
could also delay or prevent a change of control.  Taken together, these
provisions of our charter and bylaws, Delaware law may discourage transactions
that otherwise could provide for the payment of a premium over prevailing market
prices of our common stock and, possibly, the Notes, and also could limit the
price that investors are willing to pay in the future for shares of our common
stock and the Notes.

OUR MANAGEMENT OWNS A SIGNIFICANT AMOUNT OF OUR COMMON STOCK, GIVING THEM
INFLUENCE OR CONTROL IN CORPORATE TRANSACTIONS AND OTHER MATTERS, AND THEIR
INTERESTS COULD DIFFER FROM THOSE OF OTHER SHAREHOLDERS

     John F. Terwilliger, our sole director and executive officer, owns
approximately 43% of our outstanding common stock.  As a result, he is in a
position to significantly influence or control the outcome of matters requiring
a shareholder vote, including the election of directors, the adoption of any
amendment to our certificate of incorporation or bylaws, and the approval of
mergers and other significant corporate transactions. His control of the company
may delay or prevent a change of control on terms favorable to the other
shareholders and may adversely affect the voting and other rights of other
shareholders.

                                 USE OF PROCEEDS

     The selling securityholders will receive all of the proceeds from the sale
of the Notes and common shares sold under this prospectus. We will not receive
any proceeds from the sale of these securities.


                                       11

                             SELLING SECURITYHOLDERS

     The selling securityholders are holders of $2,125,000 in principal amount
of Notes and the holders of warrants to purchase common stock.  The Notes were
issued in May 2005 pursuant to a private placement to accredited investors.  The
warrants were issued to the placement agent in the May 2005 private placement.
Pursuant to the terms of the sale of the Notes, we entered into a Registration
Rights Agreement with each of the selling securityholders wherein we agreed to
register for resale the Notes and the shares of common stock issuable upon
conversion of the Notes and exercise of the warrants.

     The following table sets forth information with respect to the selling
securityholders and the respective principal amounts of the Notes and common
stock beneficially owned by each selling securityholder that may be offered
under this prospectus. The information is based on information that has been
provided to us by or on behalf of the selling securityholders. Unless otherwise
indicated herein, none of the selling securityholders currently listed in the
following table has, or within the past three years has had, any position,
office or other material relationship with us or any of our predecessors or
affiliates. Because the selling securityholders may from time to time use this
prospectus to offer all or some portion of the Notes or the common stock offered
hereby, we cannot provide an estimate as to the amount or percentage of any such
type of security that will be held by any selling securityholder upon
termination of any particular offering or sale under this prospectus. In
addition, the selling securityholder identified below may have sold, transferred
or otherwise disposed of all or a portion of any such securities since the date
on which they provided us information regarding their holdings, in transactions
exempt from the registration requirements of the Securities Act.

     For the purposes of the following table, the number of our common shares
beneficially owned has been determined in accordance with Rule 13d-3 of the
Exchange Act, and such information is not necessarily indicative of beneficial
ownership for any other purpose. Under Rule 13d-3, beneficial ownership includes
any shares as to which a selling securityholder has sole or shared voting power
or investment power and also any shares which that selling securityholder has
the right to acquire within 60 days of the date of this prospectus through the
exercise of any stock option, warrants or other rights.


                                       12



                                      Principal Amount of Notes                Number of Shares Common Stock
                                   ------------------------------  ------------------------------------------------------
                                    Beneficially
                                   Owned Prior to                  Beneficially   Percentage of              Beneficially
                                    the Offering     Percent of        Owned          Common                 Owned After
                                     and Offered        Notes        Prior to         Shares       Offered    Completion
Selling Securityholders                Hereby        Outstanding    Offering(1)   Outstanding(9)  Hereby(1)  of Offering
---------------------------------  ---------------  -------------  -------------  --------------  ---------  ------------
                                                                                           

E.C. Broun III                     $       200,000           9.4%        200,000            1.0%    200,000             0
Lorraine DiPaolo                           200,000           9.4%        200,000            1.0%    200,000             0
Camilla Bellick                            125,000           5.9%        125,000              *     125,000             0
Jacob Harris                               125,000           5.9%        125,000              *     125,000             0
Alan M. Berman                             100,000           4.7%        100,000              *     100,000             0
Peter S. Rawlings                          100,000           4.7%        100,000              *     100,000             0
Barry Garfinkel                            100,000           4.7%        100,000              *     100,000             0
William Lippe                              100,000           4.7%        100,000              *     100,000             0
David Schwartz & Florence                  100,000           4.7%        100,000              *     100,000             0
 Schwartz JTROW
LRZ Family Limited                          50,000           2.4%         50,000              *      50,000             0
 Partnership (2)
Frances H. Zorn                             50,000           2.4%         50,000              *      50,000             0
Sunderland Family Trust                     50,000           2.4%         50,000              *      50,000             0
 Dated 7/15/96 (#2) (3)
Myron Zisser                                50,000           2.4%         50,000              *      50,000             0
Gorel Realty Company (4)                    50,000           2.4%         50,000              *      50,000             0
Mitchell Kessler                            50,000           2.4%         50,000              *      50,000             0
Eric Lippe                                  50,000           2.4%         50,000              *      50,000             0
William P. Behrens                          50,000           2.4%         50,000              *      50,000             0
The Churchill Fund QP, LP (5)               41,000           1.9%         41,000              *      41,000             0
The Churchill Fund, LP (5)                  34,000           1.6%         34,000              *      34,000             0
Felix Z. Edwards III                        25,000           1.2%         25,000              *      25,000             0
Mary Willis                                 25,000           1.2%         25,000              *      25,000             0
Judith Parnes                               25,000           1.2%         25,000              *      25,000             0
Marie Carlino                               25,000           1.2%         25,000              *      25,000             0
Michael Salmanson & Tobi                    25,000           1.2%         25,000              *      25,000             0
 E. Zemsky, JTROW
Gem Holdings (6)                            25,000           1.2%         25,000              *      25,000             0
Bear Stearns Securities Corp. as            25,000           1.2%         25,000              *      25,000             0
 Custodian for the benefit of
 Bernard Korman IRA
Stanley Weirthorn Rev Trust                 25,000           1.2%         25,000              *      25,000             0
 DTD 9/7/90
Edmund Dollinger                            25,000           1.2%         25,000              *      25,000             0
Southridge Drive Associates (7)             25,000           1.2%         25,000              *      25,000             0
Mary A. Susnjara                            25,000           1.2%         25,000                     25,000             0
Johannah F. Stefanakis                      25,000           1.2%         25,000              *      25,000             0
Richard R. Davis                            25,000           1.2%         25,000              *      25,000             0
Anne O'Malley                               25,000           1.2%         25,000              *      25,000             0
Malcolm O'Malley                            25,000           1.2%         25,000              *      25,000             0
Miriam Salmanson                            25,000           1.2%         25,000              *      25,000             0
Joseph Martello                             25,000           1.2%         25,000              *      25,000             0
Roy Nelson & Anne Nelson,                   25,000           1.2%         25,000              *      25,000             0
 JTROW
Edmund Karam & Barbara                      25,000           1.2%         25,000              *      25,000             0
 Karam, JTROW
Kathleen Mullinix                           25,000           1.2%         25,000              *      25,000             0
Northeast Securities, Inc. (8)                   -             -         191,250            1.0%    191,250             0


*    Less than 1%.

(1)  Shares of common stock shown as beneficially owned include, and the
     shares of common stock registered for sale hereby consist of, all shares
     issuable upon conversion of the Notes and exercise of the warrants.

(2)  Richard Zorn has investment and voting power with respect to the
     shares held by LRZ Family Partnership.


                                       13

(3)  Ronald Sunderland has investment and voting power with respect to the
     shares held by Sunderland Family Trust Dated 7/15/96 (#2)

(4)  Myron Gorel has investment and voting power with respect to the shares
     held by Gorel Realty Company.

(5)  Cecelia Brancato has investment and voting power with respect to the
     shares held by The Churchill Fund QP, LP and The Churchill Fund, LP.

(6)  Marc Stern has investment and voting power with respect to the shares
     held by Gem Holdings.

(7)  Richard Swartz has investment and voting power with respect to the
     shares held by Southridge Drive Associates.

(8)  Robert Bonelli has investment and voting power with respect to the
     shares held by Northeast Securities, Inc.

(9)  Percentages based on number of shares of common stock outstanding as
     of June 27, 2005.

                              PLAN OF DISTRIBUTION

     The selling securityholders and their successors, including their
transferees, pledgees or donees or their respective successors, may sell the
Notes and the common stock issuable upon the conversion of the Notes directly to
purchasers or through underwriters, broker-dealers or agents, who may receive
compensation in the form of discounts, concessions or commissions from the
selling securityholders or the purchasers. These discounts, concessions or
commissions as to any particular underwriter, broker-dealer or agent may be in
excess of those customary in the types of transactions involved.

     We will not receive any of the proceeds from the sale of these securities.
If the Notes or shares of common stock issuable upon the conversion of the Notes
are to be sold by transferees, pledgees or donees or their respective successors
then we must amend the list of selling securityholders to include the
transferee, pledgee or donee or their respective successors as selling
securityholders by amending the registration statement, of which this prospectus
is a part, or supplementing this prospectus, as required by law.

     The Notes and the common stock issuable upon the conversion of the Notes
may be sold in one or more transactions at fixed prices, at prevailing market
prices at the time of sale, at prices related to the prevailing market prices,
at varying prices determined at the time of sale or at negotiated prices. These
sales may be effected in transactions, which may involve crosses or block
transactions:

     -    on any national securities exchange or quotation service on which
          the Notes or our common stock may be listed or quoted at the time of
          sale;
     -    in the over-the-counter market;
     -    otherwise than on these exchanges or services or in the
          over-the-counter market; or
     -    through the writing of options, whether the options are listed on
          an options exchange or otherwise.


                                       14

     In connection with the sale of the Notes and the common stock into which
the Notes are convertible or otherwise, the selling securityholders may enter
into hedging transactions with broker-dealers, which may in turn engage in short
sales of the Notes and the common stock into which the Notes are convertible in
the course of hedging the positions they assume. The selling securityholders may
also sell the Notes and the common stock into which the Notes are convertible
short and deliver these securities to close out their short positions, or loan
or pledge them to broker-dealers that in turn may sell these securities.

     The selling securityholders or their successors in interest may from time
to time pledge or grant a security interest in some or all of the Notes and the
common stock into which the Notes are convertible and, if the selling
securityholders default in the performance of their secured obligations, the
pledgees or secured parties may offer and sell these securities from time to
time under this prospectus.

     The aggregate proceeds to the selling securityholders from the sale of the
Notes and the common stock into which the Notes are convertible offered by them
will be the purchase price of the Notes or common stock less discounts,
concessions or commissions, if any.  Each selling securityholder reserves the
right to accept and, together with its agents from time to time, to reject, in
whole or in part, any proposed purchase of these securities to be made directly
or through agents.

     Our outstanding common stock is quoted on the OTC Bulletin Board under the
symbol "HUSA.OB." The Notes are not currently traded on any market. We do not
intend to list the Notes on any securities exchange or automated dealer
quotation system and can give no assurance about the development of any trading
market for the Notes.

     In order to comply with the securities laws of some states, if applicable,
the Notes and the common stock into which the Notes are convertible maybe sold
in these jurisdictions only through registered or licensed brokers or dealers.
In addition, in some states the Notes and the common stock into which the Notes
are convertible may not be sold unless they have been registered or qualified
for sale or an exemption from registration or qualification requirements is
available and is complied with.

     Selling securityholders that are also registered broker-dealers who act in
connection with the sale of Notes or shares of common stock under this
prospectus may be deemed to be "underwriters" within the meaning of the
Securities Act and any commissions they receive and proceeds of any sale of
Notes or shares of common stock may be deemed to be underwriting discounts and
commissions under the Securities Act. Neither we nor any selling securityholder
can presently estimate the amount of this compensation. Selling securityholders
who are "underwriters" within the meaning of the Securities Act will be subject
to the prospectus delivery requirements of the Securities Act.

     The selling securityholders have acknowledged that they understand their
obligations to comply with the provisions of the Exchange Act and the rules
thereunder relating to stock manipulation, particularly Regulation M thereunder,
or any successor rules or regulations, and have agreed that neither they nor any
person acting on their behalf will engage in any transaction in violation of
these provisions.

     In addition, any securities covered by this prospectus which qualify for
sale pursuant to Rule 144 or Rule 144A of the Securities Act may be sold under
Rule 144 or Rule 144A rather than pursuant to this prospectus.

     To the extent required, the specific Notes or common stock to be sold, the
names of the selling securityholders, the respective purchase prices and public
offering prices, the names of any agent, dealer or underwriter, and any
applicable discounts, concessions or commissions with respect to a particular
offer will be set forth in an amendment to the registration statement, of which
this prospectus is a part, or in a supplement to this prospectus, as required by
law.


                                       15

     We will use our commercially reasonable best efforts to keep the
registration statement, of which this prospectus is a part, effective for the
period set forth above under "Description of the Notes-Registration Rights." No
sales may be made pursuant to this prospectus after that period unless we amend
the registration statement, of which this prospectus is a part, or supplement
this prospectus, as required by law, to indicate that we have agreed to extend
the period of effectiveness.

     We have agreed, among other things, to bear all fees and expenses, other
than selling expenses, discounts, concessions and commissions and expenses of
counsel to the selling securityholders, in connection with the registration and
sale of the Notes and the shares of common stock under this prospectus.

                            DESCRIPTION OF THE NOTES

     We issued the Notes as of May 4, 2005.  The Notes are not subject to an
indenture. The Notes and the shares of common stock issuable upon conversion of
the Notes are covered by a registration rights agreement.

     The following description is a summary of the material provisions of the
Notes and the registration rights agreement. It does not purport to be complete.
This summary is subject to and is qualified by reference to all the provisions
of the Note, including the definitions of some terms used in the Note, and to
all provisions of the registration rights agreement. Wherever particular
provisions or defined terms or form of Note are referred to, these provisions or
defined terms are incorporated in this prospectus by reference. We urge you to
read the Note because it and not this description defines the rights of a holder
of Notes.

GENERAL

     The Notes are general, unsecured obligations of Houston American Energy
Corp. and rank junior to our secured debt, to the extent of any assets securing
such indebtedness, and to our existing and future unsubordinated, unsecured
debt. The Notes are convertible into common stock as described under
"-Conversion of Notes."

     The Notes are $2,125,000 in aggregate principal. The Notes mature on May 1,
2010 unless earlier converted or redeemed.

     We are not subject to any financial covenants under the Notes. In addition,
we are not restricted under the Note from paying dividends, incurring debt or
issuing or repurchasing our securities.

     You are not afforded protection under the Note in the event of a highly
leveraged transaction or a change in control of us except to the extent
described below under "Redemption at Option of the Holder."


     The Notes bear interest at a rate of 8% per annum. Interest is calculated
on the basis of a 360-day year consisting of twelve 30-day months and will
accrue from May 4, 2005 or from the most recent date to which interest has been
paid or duly provided for. We will pay interest on April 20 and October 20 of
each year, beginning October 20, 2005. Payment of cash interest on the Notes
will include interest accrued through the day before the applicable interest
payment date or redemption date, as the case may be.


                                       16

CONVERSION OF NOTES

     You may convert any of the Notes held by you, in whole or in part, into
common stock prior to the close of business on the final maturity date of the
Notes, subject to prior redemption of the Notes.

     The initial conversion price of the Notes is $1.00 per share, meaning that
one share of common stock will be issued for each $1.00 in principal amount of
Notes converted.

     No fractional shares of common stock will be issued upon conversion of
Notes.  Upon the conversion of the entire principal outstanding under a Note, in
lieu of issuing any fractional shares to the holder, Houston American Energy
shall pay to the holder the amount of outstanding principal that is not so
converted.  On partial conversion of Notes, Houston American Energy will issue
to the holder (i) the shares of common stock into which a portion of the Note is
converted and (ii) a new subordinated convertible promissory note having
identical terms, except that the principal amount thereof shall equal the
difference between (A) the principal amount of the Note immediately prior to
such conversion minus (B) the portion of such principal amount converted into
common stock.

     To convert Notes, the holder must surrender the Note, duly endorsed, at the
principal office of Houston American Energy.  At its expense, Houston American
Energy shall, as soon as practicable thereafter, issue and deliver to the holder
at such principal office a certificate or certificates for the number of shares
of common stock, to which the holder shall be entitled upon such conversion
(bearing such legends as are required by applicable state and federal securities
laws in the opinion of counsel to Houston American Energy), together with any
other securities and property to which the holder is entitled upon such
conversion under the terms of the Note.  Upon delivery to the holder of shares
of common stock on conversion of Notes, the principal amount of Notes so
converted will be deemed satisfied and interest thereon will cease to accrue.

     Automatic Conversion

     The entire principal outstanding under the Notes (but not interest) will be
automatically converted into shares of common stock, at the then applicable
conversion price upon the closing of an underwritten public offering of common
stock in which (i) gross proceeds to Houston American Energy are equal to or
greater than $5 million and (ii) the price-per-share of the common stock sold in
the public offering is equal to or greater than 150% of the then applicable
conversion price.

     Company Conversion

     At any time after May 1, 2006 and prior to the maturity date, Houston
American Energy may, at its sole option and effective upon the date on which
written notice of conversion is sent to the holder, cause all or part of the
principal outstanding under the Notes (but not interest) to be converted into
shares of common stock, at the then current conversion price, provided that the
market price of the common stock on the conversion date, and for at least 20 of
the 30 trading days ending on the conversion date, is in excess of 200% of the
then applicable conversion price.

     Conversion Rate Adjustments

     We will adjust the conversion rate if any of the following events occurs:

     -    we issue common stock as a dividend or distribution on our common
          stock;
     -    we issue to all holders of common stock some rights or warrants
          to purchase our common stock;


                                       17

     -    we subdivide or combine our common stock;
     -    we distribute to all holders of our common stock shares of our
          capital stock, evidences of indebtedness or assets, excluding cash;
     -    we undertake a reclassification, recapitalization or otherwise
          change our common stock into a different number, class or series of
          stock; and
     -    we sell shares of common stock, or issue securities convertible
          into or exercisable for shares of common stock, at prices less than
          the then applicable conversion price, excluding issuances of shares
          upon the conversion of securities outstanding at the time the Notes
          were issued and the issuance of shares or convertible securities to
          employees, officers, directors or consultants pursuant to effective
          S-8 registration statements.

     Upon the occurrence of any event requiring an adjustment in the conversion
rate, the conversion price, and thus the conversion rate, will adjusted in such
a manner as to result in the receipt upon conversion of the type and amount of
securities as would have been received had conversion occurred immediately prior
to the event causing adjustment.

     Except as described above in this section, we will not adjust the
conversion rate for any issuance of our common stock or convertible or
exchangeable securities or rights to purchase our common stock or convertible or
exchangeable securities.

OPTIONAL REDEMPTION BY HOUSTON AMERICAN ENERGY

     At any time after May 1, 2007 and prior to the maturity date, Houston
American Energy may, at its sole election, redeem the Notes, in whole or in
part, upon giving at least two business days prior written notice of intent to
redeem, by paying to the holders an amount equal to (i) for redemptions
occurring after May 1, 2007 and before January 1, 2008, 103% of the portion of
the Notes being redeemed, plus accrued and unpaid interest on the portion of the
Notes being redeemed, (ii) for redemptions occurring during calendar year 2008,
102% of the portion of the Notes being redeemed, plus accrued and unpaid
interest on the portion of the Notes being redeemed, (iii) for redemptions
occurring during calendar year 2009, 101% of the portion of the Notes being
redeemed, plus accrued and unpaid interest on the portion of the Notes being
redeemed, and (iv) for redemptions occurring during calendar year 2010, 100% of
the portion of the Notes being redeemed, plus accrued and unpaid interest on the
portion of the Note being redeemed.  Except as set forth above, we have no right
to prepay the Notes, in whole or in part, prior to the maturity date.

REDEMPTION AT THE OPTION OF HOLDERS

     Prior to the maturity date, the holders, at their sole election, may
require Houston American Energy to redeem the Notes, in whole or in part, by
providing written notice of their election to cause redemption of Notes and the
portion of the Notes to be redeemed.  We will redeem the portion of the Notes
for which a redemption notice is provided by paying to the holder, within ten
business days following receipt of such redemption notice, an amount equal to
100% of the portion of the Notes to be redeemed, plus accrued and unpaid
interest on the portion of the Notes to be redeemed; provided, however, that a
redemption notice will only be effective and we will only be required to redeem
Notes following the occurrence of one or more of the following designated
events:


                                       18

     -    the acquisition by any person, including any syndicate or group
          deemed to be a "person" under Section 13(d)(3) of the Exchange Act, of
          beneficial ownership, directly or indirectly, through a purchase,
          merger or other acquisition transaction or series of purchases,
          mergers or other acquisition transactions of shares of our capital
          stock entitling that person to exercise 50% or more of the total
          voting power of all shares of our capital stock entitled to vote
          generally in elections of directors, other than any acquisition by (1)
          us, (2) any of our subsidiaries, (3) any of our employee benefit
          plans, (4) John F. Terwilliger or (5) any holders of Notes; or
     -    one or more persons file a Statement on Schedule TO or a
          Statement on Schedule 13D (or any successors thereto) stating that
          they have become and actually are beneficial owners of voting stock
          representing more than 80%, in the aggregate, of the voting power of
          all of our classes of voting stock entitled to vote generally in the
          election of the members of our board of directors; or
     -    the consolidation or merger of Houston American Energy with or
          into any other person, any merger of another person into Houston
          American Energy, or any conveyance, transfer, sale, lease or other
          disposition of all or substantially all of our properties and assets
          to another person, other than: (1) any transaction (a) that does not
          result in any reclassification, conversion, exchange or cancellation
          of outstanding shares of Houston American Energy's capital stock; and
          (b) pursuant to which holders of Houston American Energy's capital
          stock immediately prior to such transaction have the right to
          exercise, directly or indirectly, 50% or more of the total voting
          power of all shares of Houston American Energy's capital stock
          entitled to vote generally in elections of directors of the continuing
          or surviving person immediately after giving effect to such issuance;
          or (2) any merger solely for the purpose of changing Houston
          American's jurisdiction of incorporation and resulting in a
          reclassification, conversion or exchange of outstanding shares of
          common stock solely into shares of common stock of the surviving
          entity.

EVENTS OF DEFAULT

     The following will be events of default under the Notes:

     -    we fail to pay (i) when due any principal or interest payment or
          (ii) any other payment required under the terms of the Notes on the
          date due and such payment shall not have been made within five (5)
          days of receipt of written notice of such failure to pay; or
     -    we fail to observe or perform any other covenant, obligation,
          condition or agreement contained in the Notes and such failure shall
          continue for ten (10) days after written notice thereof; or
     -    any representation, warranty, certificate, or other statement
          (financial or otherwise) made or furnished by or on behalf of us to
          the holders in writing in connection with the Notes, or as an
          inducement to the holders to purchase the Notes, was false, incorrect,
          incomplete or misleading in any material respect when made or
          furnished; or
     -    we shall (i) fail to make any payment when due under the terms of
          any bond, debenture, note or other evidence of indebtedness to be paid
          by us and such failure shall continue beyond any period of grace
          provided with respect thereto, or (ii) default in the observance or
          performance of any other agreement, term or condition contained in any
          such bond, debenture, note or other evidence of indebtedness, and the
          effect of such failure or default is to cause, or permit the holder
          thereof to cause, indebtedness in an aggregate amount of one million
          dollars ($1,000,000) or more to become due prior to its stated date of
          maturity; or


                                       19

     -    we shall (i) apply for or consent to the appointment of a
          receiver, trustee, liquidator or custodian of Houston American Energy
          or of all or a substantial part of our property, (ii) be unable, or
          admit in writing our inability, to pay our debts generally as they
          mature, (iii) make a general assignment for the benefit of any of our
          creditors, (iv) be dissolved or liquidated in full or in part (v)
          commence a voluntary case or other proceeding seeking liquidation,
          reorganization or other relief with respect to Houston American Energy
          or our debts under any bankruptcy, insolvency or other similar law now
          or hereafter in effect or consent to any such relief or to the
          appointment of or taking possession of our property by any official in
          an involuntary case or other proceeding commenced against us, or (vi)
          take any action for the purpose of effecting any of the foregoing; or
     -    proceedings for the appointment of a receiver, trustee,
          liquidator or custodian of Houston American Energy or of all or a
          substantial part of our property, or an involuntary case or other
          proceedings seeking liquidation, reorganization or other relief with
          respect to Houston American Energy or our debts under any bankruptcy,
          insolvency or other similar law now or hereafter in effect shall be
          commenced and an order for relief entered or such proceeding shall not
          be dismissed or discharged within thirty (30) days of commencement; or
     -    one or more judgments for the payment of money in an amount in
          excess of one million five hundred thousand dollars ($1,500,000) in
          the aggregate, outstanding at any one time, shall be rendered against
          Houston American Energy and the same shall remain undischarged for a
          period of thirty (30) days during which execution shall not be
          effectively stayed, or any judgment, writ, assessment, warrant of
          attachment, or execution or similar process shall be issued or levied
          against a substantial part of our property and such judgment, writ, or
          similar process shall not be released, stayed, vacated or otherwise
          dismissed within thirty (30) days after issue or levy.

     Upon the occurrence or existence of any event of default, except as
otherwise provided, and at any time thereafter during the continuance of such
event of default, the holder may, by written notice, declare all outstanding
amounts payable under the Notes to be immediately due and payable without
presentment, demand, protest or any other notice of any kind.  Upon the
occurrence or existence of any event of default involving appointment of a
receiver, trustee, liquidator or custodian or judgments in excess of $1,500,000,
immediately and without notice, all outstanding amounts payable under the Notes
will automatically become immediately due and payable, without presentment,
demand, protest or any other notice of any kind.  In addition to the foregoing
remedies, upon the occurrence or existence of any event of default, the holders
may exercise any other right, power or remedy permitted to it by law, either by
suit in equity or by action at law, or both.

REGISTRATION RIGHTS OF THE NOTEHOLDERS

     We entered into a registration rights agreement with the initial purchasers
of the Notes. Under the registration rights agreement, we were required to file
the registration statement of which this prospectus is a part with the SEC
covering resale of the registrable securities by August 2, 2005. We are required
to use our reasonable best efforts to cause the registration statement to become
effective by October 31, 2005.

     When we use the term "registrable securities" herein, we are referring to
the Notes and the common stock issuable upon conversion of the Notes and the
common issuable upon exercise of the placement agent warrants. With respect to
any registrable securities, we will use our reasonable best efforts to keep the
registration statement effective until the earliest of:


                                       20

     -    the date when all registrable securities have been sold in
          accordance with such registration statement; or
     -    the date when all of the registrable securities have been sold
          pursuant to Rule 144; or
     -    the date on which the registrable securities are eligible to be
          sold without any restriction pursuant to Rule 144(k); or
     -    the date when all of the registrable securities cease to be
          outstanding.

     We may suspend the use of the prospectus included in the registration
statement under certain circumstances relating to pending corporate
developments, public filings with the SEC and similar events. Any suspension
period shall not exceed:

     -    20 consecutive days; or
     -    45 days during any 12-month period.

     A holder who elects to sell registrable securities pursuant to the
registration statement will be required to:

     -    be named as a selling securityholder in the related prospectus;
     -    deliver a prospectus to purchasers; and
     -    be subject to the provisions of the registration rights
          agreement, including indemnification provisions.

     Under the registration rights agreement, we will:

     -    pay all expenses of the registration statement;
     -    provide each registered holder copies of the prospectus;
     -    notify holders when the registration statement has become effective;
          and
     -    take other reasonable actions as are required to permit
          unrestricted resales of the registrable securities in accordance with
          the terms and conditions of the registration rights agreement.

                                  LEGAL MATTERS

     The validity of the securities being offered hereby will be passed upon for
us by Michael W. Sanders, Attorney at Law.

                                     EXPERTS

     The financial statements incorporated in this prospectus and elsewhere in
this registration statement by reference to the Annual Report on Form 10-KSB for
the year ended December 31, 2004 have been so incorporated in reliance on the
report of Thomas Leger & Co., L.L.P., independent registered public accounting
firm, given on the authority of said firm as experts in auditing and accounting.


                                       21

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.     OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

     The following is a list of the estimated expenses to be incurred in
connection with the issuance and distribution of the securities being registered
hereby, all of which are payable by the Company, other than underwriting
discounts and commissions.



                                      
            Registration Fee. . . . . . .   $   272.62
            Accountants' Fees and Expenses    5,000.00
            Legal Fees and Expenses . . .    15,000.00
            Miscellaneous . . . . . . . .     4,727.38
                                            ----------
               Total. . . . . . . . . . .   $25,000.00
                                            ==========


ITEM 15.     INDEMNIFICATION OF DIRECTORS AND OFFICERS

     Section 145 of the Delaware General Corporation Law (the "DGCL") empowers a
Delaware corporation to indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action,
suit or proceeding, whether civil, criminal, administrative or investigative
(other than an action by or in the right of such corporation) by reason of the
fact that such person is or was a director, officer, employee or agent of such
corporation, or is or was serving at the request of such corporation as a
director, officer, employee or agent of another corporation or enterprise. A
corporation may, in advance of the final disposition of any civil, criminal,
administrative or investigative action, suit or proceeding, pay the expenses
(including attorneys' fees) incurred by any officer, director, employee or agent
in defending such action, provided that the director or officer undertakes to
repay such amount if it shall ultimately be determined that he is not entitled
to be indemnified by the corporation. A corporation may indemnify such person
against expenses (including attorneys' fees), judgments, fines and amounts paid
in settlement actually and reasonably incurred by such person in connection with
such action, suit or proceeding if he acted in good faith and in a manner he
reasonably believed to be in or not opposed to the best interests of the
corporation, and, with respect to any criminal action or proceeding, had no
reasonable cause to believe his conduct was unlawful.

     A Delaware corporation may indemnify officers and directors in an action by
or in the right of the corporation to procure a judgment in its favor under the
same conditions, except that no indemnification is permitted without judicial
approval if the officer or director is adjudged to be liable to the corporation.
Where an officer or director is successful on the merits or otherwise in the
defense of any action referred to above, the corporation must indemnify him
against the expenses (including attorneys fees) that he actually and reasonably
incurred in connection therewith. The indemnification provided is not deemed to
be exclusive of any other rights to which an officer or director may be entitled
under any corporation's by-law, agreement, vote or otherwise.

     In accordance with Section 145 of the DGCL, the company's Certificate of
Incorporation (the "Certificate") provides that the company shall indemnify each
person who is or was a director, officer, employee or agent of the company
(including the heirs, executors, administrators or estate of such person) or is
or was serving at the request of the company as a director, officer, employee or
agent of another corporation, partnership, joint venture, trust or other
enterprise, to the fullest extent permitted. The indemnification provided by the
Certificate shall not be deemed exclusive of any other rights to which any of
those seeking indemnification or advancement of expenses may be entitled under
any by-law, agreement, vote of stockholder or disinterested directors or
otherwise, both as to action in his official capacity and as to action in
another capacity while holding such office, and shall


                                      II-1

continue as to a person who has ceased to be a director, officer, employee or
agent and shall inure to the benefit of the heirs, executors and administrators
of such a person. Expenses (including attorneys' fees) incurred in defending a
civil, criminal, administrative or investigative action, suit or proceeding
shall be paid by the company in advance of the final disposition of such action,
suit or proceeding upon receipt of an undertaking by or on behalf of the
indemnified person to repay such amount if it shall ultimately be determined
that he is not entitled to be indemnified by the company. The Certificate
provides that a director of the company shall not be personally liable to the
company or its stockholders for monetary damages for breach of fiduciary duty as
a director, except for liability (i) for any breach of the director's duty of
loyalty to the company or its stockholders, (ii) for acts or omissions not in
good faith or which involve intentional misconduct or a knowing violation of
law, (iii) under Section 174 of the DGCL, or (iv) for any transaction from which
the director derived an improper personal benefit.

ITEM 16.     EXHIBITS



          
         4.1    Form of 8% Subordinated Convertible Note due 2010, dated May 4, 2005(1)
         4.2    Form of Placement Agent Warrant, dated May 4, 2005(1)
         4.3    Form of Registration Rights Agreement, dated May 4, 2005(1)
         5.1*   Opinion and consent of Michael W. Sanders, Attorney at Law re: the legality of the
                shares being registered
        10.1    Form of Purchase Agreement, dated May 4, 2005 relating to the sale of 8%
                Subordinated Convertible Notes due 2010(1)
        23.1*   Consent of Michael W. Sanders, Attorney at Law (including in Exhibit 5.1)
        23.2*   Consent of Thomas Leger & Co., LLP


 *   Filed herewith

(1)  Incorporated by reference to the respective exhibits filed with the
     Company's Current Report on Form 8-K dated May 4, 2005.

ITEM 17.     UNDERTAKINGS

(a)  The undersigned registrant hereby undertakes:

     (1)   To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement;

          (i)  To include any prospectus required by section 10(a)(3) of
               the Securities Act of 1933;

          (ii) To reflect in the prospectus any facts or events arising
               after the effective date of the registration statement (or the
               most recent post-effective amendment thereof) which, individually
               or in the aggregate, represent a fundamental change in the
               information set forth in the registration statement.
               Notwithstanding the foregoing, any increase or decrease in volume
               of securities offered (if the total dollar value of securities
               offered would not exceed that which was registered) and any
               deviation from the low or high end of the estimated maximum
               offering range may be reflected in the form of prospectus filed
               with the Commission pursuant to Rule 424(b) if, in the aggregate,
               the changes in volume and price represent no more than a 20%
               change in the maximum aggregate offering price set forth in the
               "Calculation of Registration Fee" table in the effective
               registration statement.


                                      II-2

         (iii) To include any material information with respect to the
               plan of distribution not previously disclosed in the registration
               statement of any material change to such information in the
               registration statement.

provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) of this section do
not apply if the registration statement is on Form S-3, Form S-8 or Form F-3,
and the information required to be included in a post-effective amendment by
those paragraphs is contained in periodic reports filed or furnished to the
Commission by the registrant pursuant to section 13 or section 15(d) of the
Securities Exchange Act of 1934 that are incorporated by reference in the
registration statement.

     (2)     That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

     (3)     To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination of
the offering.

(b)     The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

(c)     Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.


                                      II-3

                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Houston, State of Texas on the 13th day of July,
2005.

                                   HOUSTON AMERICAN ENERGY CORP.


                                   BY: /S/ JOHN F. TERWILLIGER
                                       JOHN F. TERWILLIGER
                                       President

     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the date indicated.

SIGNATURES                              TITLE                         DATE
----------                              -----                         ----

/s/ John F. Terwilliger     President, Chief Executive Officer     July 13, 2005
John F. Terwilliger         and Director (Principal Executive,
                            Financial and Accounting Officer)


                                      II-4