--------------------------------------------------------------------------------

ASSIGNMENT AGREEMENT

THIS AGREEMENT made as of the 30th day of July, 2009.

BETWEEN:

> > > > > DORAL ENERGY CORP., a Nevada corporation with its head office located
> > > > > at 415 W. Wall Street, Suite 500, Midland, TX 79701
> > > > > 
> > > > > (hereinafter called the “Assignor”)

OF THE FIRST PART

AND:

> > > > > LEGACY RESERVES LP., a Delaware limited partnership with its head
> > > > > office located at 303 West Wall Street, Suite 1400, Midland, TX 79701
> > > > > 
> > > > > (hereinafter called the “Assignee”)

OF THE SECOND PART

WHEREAS:

A.                       By an agreement dated January 15, 2009 and as amended
on February 23, 2009, March 31, 2009 and April 21, 2009, copies of which are
attached as Schedule A hereto (collectively, the “Purchase Agreement”) between
Miltex Oil Company (the “Vendor”) and the Assignor, the Assignor has the right
to purchase all of the Vendor’s right, title and interest in and to certain oil
and gas leases located in Cochran County, Texas and as more particularly
described in the Purchase Agreement (collectively, the “Miltex Properties”); and

B.                       The Assignee wishes to acquire all of the Assignor’s
rights under, and interest in, the Purchase Agreement,

NOW THEREFORE THIS AGREEMENT WITNESSES THAT for good and valuable consideration,
the receipt and sufficiency of which is hereby acknowledged, the parties hereto
agree as follows:

ASSIGNMENT

1.                       At Closing, the Assignor will assign to the Assignee,
all of the Assignor’s rights, title and interest in and under the Purchase
Agreement.

CONSIDERATION

2.                       In consideration for the Assignor assigning to the
Assignee the Assignor’s rights, title and interest in and under the Purchase
Agreement, the Assignee will, at Closing, pay to the Assignor the aggregate
amount of $633,249.51 (the “Closing Price”).

3.                       The Assignee shall be obligated to pay to the Assignor
the consideration set out in Section 2 regardless of whether or not the Assignee
completes the purchase of the Miltex Properties.

--------------------------------------------------------------------------------

2

ASSUMPTION OF OBLIGATIONS

4.                       Upon Closing, the Assignee agrees to be bound by the
provisions of the Purchase Agreement and to assume all of the Assignor’s
obligations thereunder as if the Assignee had originally executed the same. The
Assignee agrees to indemnify and hold the Assignor harmless as to any claims or
causes of action (including attorneys fees and court costs) arising from the
Purchase Agreement.

ASSIGNOR’S REPRESENTATIONS AND WARRANTIES

5.                       The Assignor represents and warrants to and covenants
with the Assignee that:

  (a)

the Assignor has full corporate power and capacity to enter into this Agreement
and this Agreement has been validly authorized, executed and delivered by the
Assignor;

        (b)

the entering into and the performance of this Agreement and the transactions
contemplated herein will not result in the violation of any of the terms and
provisions of the constating documents of the Assignor, any shareholders’ or
directors’ resolutions, or of any indenture, other agreement, written or oral,
to which the Assignor may be bound or to which it may be subject, or any
judgment, decree, order, rule or regulation of any court or administrative body
by which the Assignor is bound, or any statute or regulation applicable to the
Assignor;

        (c)

the Assignor is the lawful owner of, has good legal and beneficial title to, and
has the right to assign its rights, title and interest in and under the Purchase
Agreement;

        (d)

the Purchase Agreement is a valid and subsisting agreement;

        (e)

the Assignor has complied with all of the terms and conditions of the Purchase
Agreement to date;

        (f)

there have been no defaults or acts by the Assignor under the Purchase Agreement
which have or would permit the Vendor to terminate the Purchase Agreement;

        (g)

there are no liens or encumbrances against the Assignor that would materially
affect the purchase by the Assignee of the Miltex Properties under the Purchase
Agreement; and

        (h)

there is no litigation, proceeding or investigation pending or threatened
against the Assignor or, to the best of the knowledge of the Assignor, the
Vendor, nor does the Assignor know, or have any reasonable grounds to know, of
any basis for any litigation, proceeding or investigation, which would
materially affect the Purchase Agreement or the purchase and sale of the Miltex
Properties

ASSIGNEE’S REPRESENTATIONS AND WARRANTIES

6.                       The Assignee represents and warrants to and covenants
with the Assignor that:

  (a)

the Assignee has full organizational power and capacity to enter into this
Agreement and this Agreement has been validly authorized, executed and delivered
by the Assignee;

--------------------------------------------------------------------------------

3

  (b)

the entering into and the performance of this Agreement and the transactions
contemplated herein will not result in the violation of any of the terms and
provisions of the constating documents of the Assignee, any unitholders’,
partners, managers or directors’ resolutions, or of any indenture, other
agreement, written or oral, to which the Assignee may be bound or to which it
may be subject, or any judgment, decree, order, rule or regulation of any court
or administrative body by which the Assignee is bound, or any statute or
regulation applicable to the Assignee.

NO REPRESENTATIONS AND WARRANTIES REGARDING MILTEX PROPERTIES

7.                       The Assignee agrees that the purchase by it of the
Miltex Properties under the Purchase Agreement shall be made on an “as is, where
is” condition and state of repair, and with all faults and defects, and that the
Assignor makes no representations, warranties or covenants of any kind or
nature, express, implied or statutory, including, but not limited to warranties
of merchantability, quality, condition, environmental condition or fitness for a
particular purpose, all of which are expressly disclaimed. The Assignor makes no
representation, covenant or warranty, express, implied or statutory, concerning
the quality or quantity of hydrocarbons or the ability of the Miltex Properties
to produce hydrocarbons or the prices which the Assignee will be entitled to
receive for any such hydrocarbons. For purposes of this Agreement, hydrocarbons
shall include, but not be limited to, all crude oil, condensate, natural gas,
natural gas liquids, casinghead gas, drip gasoline, products and other
hydrocarbons, water or other minerals produced from or attributable to the
Miltex Properties.

8.                       The Assignor agrees to make available to the Assignee
all title reports, reserve reports or other information, reports or records in
its possession relating to the title or condition of the Miltex Properties
(collectively, the “Due Diligence Information”). The Assignee agrees not to use
the Due Diligence Information for any purpose other than the assignment
contemplated in this Agreement and the purchase by the Assignee of the Miltex
Properties under the Purchase Agreement, and the Assignee agrees not to disclose
the Due Diligence Information to any third party without the prior written
consent of the Assignor.

REPRESENTATIONS AND WARRANTIES SURVIVE

9.                       The representations and warranties of the parties shall
survive the completion of the assignment of the Purchase Agreement. Each party
agrees to indemnify the other against any loss or damage sustained by such other
party, directly or indirectly, by reason of a breach of any of the particular
party’s warranties or representations. The parties acknowledge that the they
have entered into this Agreement relying on the warranties and representations
provided by each to the other, and no information which is now known or which
may hereafter become known to the parties or their particular officers,
directors or professional advisors, will limit or extinguish the right to
indemnity hereunder.

CLOSING

10.                      Closing (the “Closing”) will take place on July 31,
2009.

11.                      Closing will be conditional on the representations and
warranties set out in Sections 5 and 6 continuing to be true on Closing.

12.                      At the Closing the Assignor shall deliver to the
Assignee a document executed by the Vendor acknowledging the Assignment and
confirming that the Purchase Agreement is in good standing.

--------------------------------------------------------------------------------

4

13.                      At the Closing, the Assignee will wire transfer the
full amount of the Closing Price to the Assignor’s bank account in accordance
with wire transfer instructions to be provided by the Assignor to the Assignee
at Closing.

MISCELLANEOUS

14.                      The parties shall do such further and other acts and
execute such further and other documents as may be necessary to carry out the
true intent and purposes of this Agreement fully and effectively.

15.                      Any notice required to be given under this Agreement
shall be in writing and addressed to the parties as hereinbefore set out and may
be delivered or faxed to the address set out on the front of this Agreement. Any
notice given as aforesaid shall be deemed to have been received, if delivered,
when delivered or, if faxed, on the business day after the date of faxing.

16.                      This Agreement shall enure to the benefit of and be
binding upon the parties, their respective successors and assigns.

17.                      Time shall be of the essence hereof.

18.                      The invalidity, illegality or unenforceability of any
provision of this Agreement shall not affect the validity, legality or
enforceability of any other provision hereof.

19.                      The headings used in this Agreement have been inserted
for convenience of reference only and shall not affect the meaning or
interpretation of this Agreement or any provision hereof.

20.                      Notwithstanding the place where this Agreement may be
executed by any of the parties hereto, the parties expressly agree that all the
terms and provisions hereof shall be construed in accordance with and governed
by the laws of the State of Nevada.

-- THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK --

--------------------------------------------------------------------------------

21.                      This Agreement may be executed in one or more
counterparts, all of which will be considered one and the same agreement and
will become effective when one or more counterparts have been signed by each
party and delivered to the other party, it being understood that all parties
need not sign the same counterpart.

IN WITNESS WHEREOF the parties hereto have executed this Agreement as of the day
and year first above written.

ASSIGNOR:

DORAL ENERGY CORP.

Per: /s Everett W. Gray II     Name:   Everett Willard Gray II     Title:    
C.E.O.  

ASSIGNEE:

LEGACY RESERVES OPERATING LP, a Delaware limited partnership

By: Legacy Reserves Operating GP LLC, its general partner

By: Legacy Reserves LP, its sole member

By: Legacy Reserves GP, LLC, its general partner

/s/ Kyle A. McGraw   Kyle A. McGraw, Executive Vice President   Business
Development and Land  

--------------------------------------------------------------------------------

SCHEDULE ‘A’

  1.

Letter Agreement dated January 15, 2009 between Doral Energy Corp. and Miltex
Oil Company (the “Original Agreement”).

        2.

Letter Agreement dated February 23, 2009 between Doral Energy Corp. and Miltex
Oil Company amending the Original Agreement.

        3.

Letter Agreement dated March 31, 2009 between Doral Energy Corp. and Miltex Oil
Company amending the Original Agreement.

        4.

Letter Agreement dated April 21, 2009 between Doral Energy Corp. and Miltex Oil
Company amending the Original Agreement.

See attached.

--------------------------------------------------------------------------------

[schedsx1x1.jpg]

--------------------------------------------------------------------------------

[schedsx2x1.jpg]

--------------------------------------------------------------------------------

[schedsx3x1.jpg]

--------------------------------------------------------------------------------

[schedsx4x1.jpg]

--------------------------------------------------------------------------------

[schedsx5x1.jpg]

--------------------------------------------------------------------------------

[schedsx6x1.jpg]

--------------------------------------------------------------------------------

[schedsx7x1.jpg]

--------------------------------------------------------------------------------

[schedsx8x1.jpg]

--------------------------------------------------------------------------------

[schedsx9x1.jpg]

--------------------------------------------------------------------------------

[schedsx10x1.jpg]

--------------------------------------------------------------------------------

[schedsx11x1.jpg]

--------------------------------------------------------------------------------

[schedsx12x1.jpg]

--------------------------------------------------------------------------------

[schedsx13x1.jpg]

--------------------------------------------------------------------------------