UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                  SCHEDULE 13D


                   Under the Securities Exchange Act of 1934


                                 T-REX OIL, INC.
                            fka RANCHER ENERGY CORP.
             ------------------------------------------------------
                                (Name of Issuer)

                        Common Stock, $0.0001 per share
             ------------------------------------------------------
                         (Title of Class of Securities)

                                   75188R106
              ------------------------------------------------------
                                (CUSIP Number)

                                 DONALD WALFORD
                               1434 Baseline Road
                                Boulder, CO 80203
                                 (720) 502-4483
             ------------------------------------------------------
                 (Name, Address and Telephone Number of Person
               Authorized to Receive Notices and Communications)


                 ---------------------------------------------
            (Date of Event which Requires Filing of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  that is the subject of this  Schedule  13D, and is filing this
schedule because of ss.ss.240.13d-1(e),  240.13d-1(f) or 240.13d-1(g), check the
following box. /_/

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).


CUSIP No. 75188R106

1.   NAMES OF REPORTING PERSONS:

     Donald Walford

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):(a) /_/
                                                                         (b) /_/
3.   SEC USE ONLY:

4.   SOURCE OF FUNDS (SEE INSTRUCTIONS): N/A

5.   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d)
     OR 2(e): /_/

6.   CITIZENSHIP OR PLACE OF ORGANIZATION:

     United States

                             7.  SOLE VOTING POWER:

                                 1,100,000
      NUMBER OF SHARES
      BENEFICIALLY OWNED     8.  SHARED VOTING POWER:
      BY EACH REPORTING
      PERSON WITH                0

                             9.  SOLE DISPOSITIVE POWER:

                                 1,100,000

                             10. SHARED DISPOSITIVE POWER:

                                 0

11.  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:

     1,100,000 shares

12.  CHECK IF THE  AGGREGATE  AMOUNT IN ROW (11)  EXCLUDES  CERTAIN  SHARES (SEE
     INSTRUCTIONS): /_/

13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):

     14.09% Common Stock

14.  TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):

     IN

                                      -1-


ITEM 1. SECURITY AND ISSUER
---------------------------

The  security  for which  this  report is made is the  common  stock,  par value
$0.0001 per share,  of T-Rex Oil,  Inc.  fka Rancher  Energy  Corp.,  a Colorado
corporation (the "Issuer").

ITEM 2. IDENTITY AND BACKGROUND.
--------------------------------

This statement on Schedule 13D is being filed on behalf of Donald L. Walford, an
individual. The address of Mr. Walford is 1434 Baseline Road, Boulder, CO 80203.

Mr.  Walford was appointed  Director,  Chief  Executive  Officer,  President and
Acting Chief Accounting Officer of T-Rex Oil, Inc. in August 2014.

Mr.  Walford  served as Three  Forks,  Inc.  Chief  Executive  Officer  from the
inception of the Company through October 22, 2013. At that time he was appointed
the Executive Vice President of Finance. He has been a Director since 2012.

Mr.  Walford  has served as a Director  and Broker from 1990 to date of Colorado
Landmark  Reality.  He has served as the  Chairman  and Vice  President of Eveia
Medical from 2007 through 2010.

Mr. Walford was licensed as a principal,  NASD Series 7, commodities  broker and
all other principal  securities  licenses  including an Allied Member of the New
York Stock Exchange, from 1967 through 1992.

Mr.  Walford has not,  during the last five years,  been convicted in a criminal
proceeding (excluding traffic violations or similar misdemeanors).

Mr.  Walford  has not,  during  the  last  five  years,  been a party to a civil
proceeding of a judicial or administrative body of competent jurisdiction and as
a result of such  proceeding  was or is subject to a  judgment,  decree or final
order  enjoining  future  violations of, or prohibiting or mandating  activities
subject  to,  federal or state  securities  laws or finding any  violation  with
respect to such laws.

Mr. Walford is a citizen of the United States of America.


ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION
---------------------------------------------------------

On February 12, 2013, Mr. Walford  purchased  1,100,000  shares of common stock.
Mr.  Walford was appointed  Director,  Chief  Executive  Officer,  President and
Acting Chief Accounting Officer of T-Rex Oil, Inc. in August 2014.


ITEM 4. PURPOSE OF TRANSACTION
------------------------------

Mr. Walford is sole owner of the 1,100,000 shares of the Company and as such has
the ability to vote the shares.  In addition,  Mr.  Walford is  Director,  Chief
Executive  Officer,  President and Acting Chief Accounting Officer of T-Rex Oil,
Inc., as such Mr. Walford may influence the following  which relate to, or could
result in the matters referred to in paragraphs (a) through (j),  inclusive,  of
the  instructions  to Item 4 of Schedule  13D as  follows:  a)  acquisitions  of
prospects  which  continue  for Issuer,  based on the  business  judgment of the
continuing  board of directors b) the  reporting  persons  intend to formulate a
plan to recapitalize the Issuer for at least $10,000,000, (although there can be
no assurance that the Issuer will successfully  achieve that, or any, additional
debt or equity  capitalization)  c)  further,  the  Reporting  persons  may seek
shareholder  approval and authorization for preferred stock; d) authorization of
preferred stock will require amendments to the Articles of Incorporation.

                                      -2-


The  Reporting  Person  may,  at any  time  and from  time to  time,  review  or
reconsider  their position  and/or change his purpose and/or  formulate plans or
proposals with respect thereto.


ITEM 5. INTEREST IN SECURITIES OF THE ISSUER
--------------------------------------------

The  percentages of outstanding  shares of T-Rex Oil, Inc. common stock reported
below are based on the  statement  that as of  February  18,  2015,  there  were
7,808,165 shares of T-Rex Oil, Inc. common stock outstanding.

     (a) Mr.  Walford  beneficially  owns or may be deemed to  beneficially  own
shares of T-Rex Oil, Inc. common stock as follows:

                                    No. of Shares            % of Class
                                    -----------------        -------------
         Common Shares              1,100,000                14.09%
                                    -----------------        -------------
                                    1,100,000                14.09%

     (b) For  information  regarding  the  number of shares of T-Rex  Oil,  Inc.
common stock as to which Mr.  Walford  holds or shares or may be deemed to hold,
reference  is made to items (7) - (12) of the cover page for this  statement  on
Schedule 13D.

     (c) Other  than as set forth  herein,  there have been no  transactions  in
shares of T-Rex Oil, Inc.  common stock  effected by Mr. Walford during the past
60 days.

     (d) No other  person  has the right to  receive  or the power to direct the
receipt of dividends from, or the proceeds from the sale of, such securities.

     (e) The date on which the  reporting  person  ceased to be the  beneficiary
owner of more than five percent of the class of securities: Not Applicable


ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
SECURITIES OF THE ISSUER.
--------------------------------------------------------------------------------

Mr.  Walford has no contracts,  arrangements,  understandings  or  relationships
(legal or otherwise)  with other persons with respect to the securities of T-Rex
Oil, Inc., other than as described in this statement on Schedule 13D.


ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.
-----------------------------------------

Not Applicable



                                      -3-




                                   SIGNATURES

After  reasonable  inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.


                                       Date: February 18, 2015



                                       /s/ Donald Walford
                                       ---------------------------------
                                       Donald Walford, Individual



































                                      -4-