Commission File No. 333-174194

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-1

                                 POST-EFFECTIVE
                                 AMENDMENT NO. 4

                          Registration Statement Under
                           THE SECURITIES ACT OF 1933

                           VANGUARD ENERGY CORPORATION
                    -----------------------------------------
               (Exact name of registrant as specified in charter)

        Colorado                        1381                       27-2888719
  -------------------------       -----------------------         -------------
(State or other jurisdiction     (Primary Standard Classi-       (IRS Employer
 of incorporation)                fication Code Number)           I.D. Number)

                         1330 Post Oak Blvd., Suite 1600
                              Houston, Texas 77056
                                  (713) 627-250
           --------------------------------------------------------0
          (Address and telephone number of principal executive offices)

                         1330 Post Oak Blvd., Suite 1600
                              Houston, Texas 77056
                -----------------------------------------------
(Address of principal place of business or intended principal place of business)

                                Warren M. Dillard
                         1330 Post Oak Blvd., Suite 1600
                              Houston, Texas 77056
                                 (713) 627-2500
               --------------------------------------------------
            (Name, address and telephone number of agent for service)

              Copies    of all communications, including all communications sent
                        to the agent for service, should be sent to:

                                 William T. Hart
                                Hart & Hart, LLC
                             1624 Washington Street
                             Denver, Colorado 80203
                                  303-839-0061

      Approximate date of commencement of proposed sale to the public: N/A



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, 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. [ ]

Indicate by check mark whether the registrant is a large  accelerated  filer, an
accelerated filer, a non-accelerated filer, or a smaller reporting company.

   Large accelerated filer [ ]                Accelerated filer [ ]

   Non-accelerated filer [ ]                  Smaller reporting company [X]


                                                               

                                         Proposed
                                          Maximum          Proposed
                                         Offering          Maximum         Amount of
  Title of each Class of       to be      Price Per       Aggregate      Registration
Securities to be Registered  Registered  Security (1)   Offering Price      Fee (2)
--------------------------------------------------------------------------------------

Units, each consisting
   of:(3)                    6,900,000      $1.00         $6,900,000          $802

(i)   one share of common    6,900,000         --                 --            --
          stock; and

(ii) one Class A warrant to
     purchase one share
     of common stock; and    6,900,000         --                 --            --

Representative's warrant(4)    600,000         --                 --            --

Units issuable upon exercise
  of the representative's
  warrants, each unit
  consisting of:               600,000      $1.20           $720,000           $84

 (i)  one share of common
      stock; and               600,000         --                 --            --

 (ii) one Class A warrant to
       purchase one share
       of common stock (4)     600,000         --                 --            --

Shares of common stock
 issuable upon exercise of
 the Class A warrants,
 including the Class A
 warrants underlying
 the representative's
 warrant (3)                 7,500,000      $1.50        $11,250,000         $1,307
                                                         -----------         ------
TOTAL                                                    $18,870,000         $2,197
       =                                                 ===========         ======


(1)  Offering price computed in accordance with Rule 457(g).

(2)  Previously paid.

                                       2


(3)  Includes 900,000 units which would be issued, or issuable, upon exercise of
     the underwriter's overallotment option.

(4)  In connection with the sale of the units, the registrant will issue the
     representative of the underwriters a warrant to purchase up to 600,000
     units.

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  l933  or  until  the  Registration  Statement  shall  become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

                                EXPLANATORY NOTE

The  sole  purpose  of  this  Post-Effective  Amendment  No.  4 to  Registration
Statement No. 333-174194 is to withdraw from registration certain shares covered
by the Registration Statement. Since no changes are being made to the prospectus
included in the Registration  Statement,  the Prospectus is not included in this
filing.

The Registration  Statement covered the sale of Units,  common stock and Class A
warrants of Vanguard Energy Corporation.  As shown by the table below, a certain
number of these securities are being withdrawn from registration since they were
either:

     o    not sold,

     o    or are being registered by means of a separate registration  statement
          (333-187697).

                                                                 Covered by New
                                                                  Registration
                                                         Not        Statement
    Securities Registered         Amount       Sold    Sold(1)  (333-187697)(1)
    ---------------------         ------       ----    ------   ---------------

(i)  one share of common
     stock, and                 6,900,000   4,800,000  2,100,000

(ii) one Class A warrant to     6,900,000   4,800,000  2,100,000
     purchase one share of
     common stock; and

Representative's warrant          600,000     480,000    120,000

Units issuable upon exercise
 of the representative's
 warrants                         600,000                120,000         480,000

(i)  one share of common
     stock; and                   600,000                120,000         480,000

(ii) one Class A warrant to
     purchase one share of
     common stock                 600,000                120,000         480,000

Shares of common stock
 issuable upon exercise of
 the Class A warrants           7,500,000          --  2,700,000       4,800,000
--------------------------------------------------------------------------------

(1) Securities in this column are being withdrawn from registration.

                                       3


                                   SIGNATURES

     Pursuant to the  requirements of the Securities Act of l933, the registrant
has duly caused this  registration  statement  to be signed on its behalf by the
undersigned, thereunto duly authorized, in Houston, Texas on the
1st day of July, 2013.

                                VANGUARD ENERGY CORPORATION

                                 By: /s/ Warren M. Dilliard
                                     --------------------------------------
                                     Warren M. Dillard, President and Chief
                                     Executive Officer


                                POWER OF ATTORNEY

     The  registrant  and each  person  whose  signature  appears  below  hereby
authorizes the agent for service named in this Registration Statement, with full
power to act alone,  to file one or more  amendments  (including  post-effective
amendments)  to this  Registration  Statement,  which  amendments  may make such
changes  in  this  Registration  Statement  as  such  agent  for  service  deems
appropriate,  and the Registrant and each such person hereby appoints such agent
for service as attorney-in-fact, with full power to act alone, to execute in the
name and in behalf of the  Registrant and any such person,  individually  and in
each capacity stated below, any such amendments to this Registration Statement.

     In accordance  with the  requirements  of the Securities Act of l933,  this
registration  statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated:

           Signature                      Title                     Date

/s/ Warren M. Dillard              Chief Executive, Financial
-------------------------------    and Accounting Officer and
Warren M. Dillard                  a Director                     July 1, 2013


/s/ Gerald Bailey
-------------------------------
Gerald Bailey, by Warren M.        Director                       July 1, 2013
Dillard as his attorney-in-fact

/s/ Steven M. Powers
-------------------------------
Steven M. Powers, by Warren M.     Director                       July 1, 2013
Dillard as his attorney-in-fact

/s/ Rick A. Wilber
-------------------------------
Rick A. Wilber, by Warren M.       Director                       July 1, 2013
Dillard as his attorney-in-fact