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

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