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                                                                    EXHIBIT 10.2

                                ESCROW AGREEMENT

         This Escrow Agreement (herein so called), dated February 16, 2004, made
by and between Mewbourne Development Corporation, a Delaware Corporation ("MD"),
and Regions Bank - Tyler ("Escrow Agent");

         WHEREAS, MD will serve as the Managing Partner of Mewbourne Energy
Partners 04-A, L.P. and Mewbourne Energy Partners 05-A, L.P., (the
"Partnerships"), in which general and limited partnership interests
(collectively, the "Interests") are to be offered and sold in an offering
pursuant to the Securities Act of 1933 as amended;

         WHEREAS, the Partnership(s) will participate with MD and Mewbourne Oil
Company ("MOC"), in a program for the purpose of developing oil and gas
prospects through drilling and producing oil and gas thereon (the "Programs");

         WHEREAS, the Form S-1 Registration Statement (the "Statement") dated
______________, 2004, relating to the interests to be sold provides that
subscription proceeds for such Interests ("Subscription Proceeds") from
investors who are initially approved by MD will be deposited in an escrow
account with Escrow Agent and may not be contributed to the capital of a
Partnership unless at the end of the subscription period the aggregate
Subscription Proceeds of over $1,000,000 have been received and accepted for the
Partnership and certain other conditions have been met;

         WHEREAS, the Statement relating to the Interests to be sold provides
that investors desiring to purchase Interests in a Partnership shall provide MD
with certain information concerning their suitability for investment in the
Partnership by completing the Subscription Agreement (the "Subscription
Agreement"); and

         WHEREAS, MD desires that Escrow Agent provide procedures for the
deposit and safekeeping of the Subscription Proceeds and delivery of the
Subscription Agreement to MD subject to the terms of this Escrow Agreement;

         NOW, THEREFORE, in consideration of the mutual promises herein set
forth, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto covenant and
agree as follows:

         1. Escrow Period. The term of this Escrow Agreement shall begin on the
effective date of the Statement and shall terminate in accordance with Section 7
below.

         2. Escrow Account and Deposit of Escrow Funds. For each Partnership,
Escrow Agent shall open a special trust account (the "Account") at Regions Bank
- Tyler for and in the name of Regions Bank - Tyler as Escrow Agent under this
Escrow Agreement. Following receipt by Escrow Agent of the Subscription
Agreement and Subscription Proceeds for the purchase of Interests in a
Partnership, the Subscription Agreement shall be promptly delivered to MD and
the instruments representing the Subscription Proceeds shall be deposited and
maintained by Escrow Agent in accordance with the terms of this Escrow
Agreement. The Subscription Proceeds so deposited, together with any and all
interest earned thereon, are referred to as the "Escrow Funds".

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         3. Duties of Escrow Agent. The Escrow Agent shall have the following
general duties: (a) to promptly deliver the Subscription Agreement to MD; (b) to
deposit and safely maintain the Escrow Funds in the Account, guarding at all
times against the commingling thereof with any funds of MD or its affiliates
during the term of this Escrow Agreement; (c) at the direction of MD, to invest
the Escrow Funds in investments that are permissible under rule 15c2-4
promulgated by the Securities and Exchange Commission under the Securities
Exchange Act of 1934, as amended, including, without limitation (if
permissible), time deposits, short-term bank certificates of deposit, short-term
governmental obligations and bank money market accounts to be held by Escrow
Agent; (d) to prepare and maintain true and complete records with respect to the
Escrow Funds, including the name of each subscriber and the portion of the
Escrow Funds from time to time attributable to him; and (e) to disburse the
Escrow Funds in accordance with the terms of this Escrow Agreement.

         4. Payment of Escrow Funds. The Escrow Funds, or portions thereof,
shall be paid out by Escrow Agent in accordance with written instructions from
MD as follows: (a) to each subscriber, if any, whose subscription has been
rejected by MD within five business days after the clearance of those Escrow
Funds, that portion of the Escrow Funds attributable to that subscriber as shown
on Escrow Agent's records, including any interest earned thereon; (b) to each
subscriber, if any, whose Subscription Proceeds have not been contributed to the
Partnership prior to the termination of the offering period for Interests in the
Partnership, and any subscriber who may be rejected as an Investor Partner
subsequent to the period described in Subsection (a) of this Section 4, that
portion of the Escrow Funds attributable to the rejected subscriber as shown on
Escrow Agent's records together with any interest attributable thereto (as
calculated by MD); (c) to each subscriber, if any, whose subscription has been
reduced, that portion of the Escrow Funds equal to the amount of such reduction
attributable thereto as shown on Escrow Agent's records; (d) to MD for
distribution to each subscriber within 60 days of closing of the Partnership,
that portion of accrued and unpaid interest on the Escrow Funds relating to such
Partnership, which Escrow Funds were deposited no fewer than five business days
prior to the termination of the offering of Interests in the Partnership,
attributable to that subscriber as shown on Escrow Agent's records; and (e) to
an account for the Partnership all remaining Escrow Funds attributable to the
Partnership. Notwithstanding the foregoing, no portion of the Escrow Funds may
be paid to the Partnership unless the Escrow Agent shall have in excess of
$1,000,000 in Escrow Funds with respect to the Partnership and MD informs the
Escrow Agent in writing that aggregate Subscription Proceeds for Interests in
the Partnership of $1,000,000 or more have been received and cleared from
subscribers that MD initially approves as suitable to be Investor Partners (as
such term is defined in the Statement) in that Partnership. Notwithstanding the
provisions of this Section 4, or any other provision of this Escrow Agreement,
after the Escrow Agent shall have in excess of $1,000,000 in Escrow Funds with
respect to that Partnership and MD informs the Escrow Agent in writing that
aggregate Subscription Proceeds for Interests in such Partnership of $1,000,000
or more have been received and cleared by Escrow Agent, upon the written request
of MD, Escrow Agent shall disburse all or any portion of the Escrow Funds to an
account established by MD for the Partnership.

         Notwithstanding anything contained herein to the contrary, it is
expressly contemplated by MD and the Escrow Agent that MD shall be solely
responsible for all computations and disbursements of interest and the
preparation and mailing of all forms with respect thereto,

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including without limitation Form 1099 as is contemplated in Subsections (b),
(c), and (d) of this Section 4.

         The Escrow Agent shall deliver to MD from time to time such records and
information which are available to Escrow Agent and are necessary to make the
computations of interest contemplated herein.

         5. Expenses and Compensation. All expenses incurred by Escrow Agent in
connection with this Escrow Agreement and the compensation of Escrow Agent set
forth in Exhibit 1 hereto shall be charged to MD and MD agrees to pay promptly
all such expenses and compensation following receipt of an invoice therefor.

         6. Escrow Agent. MD and Escrow Agent agree that the following
provisions shall control with respect to the rights, duties, liabilities,
privileges and immunities of Escrow Agent: (a) Escrow Agent is not a party to,
and is not bound by, any agreement or other document out of which this Escrow
Agreement may arise; (b) Escrow Agent is not responsible or liable in any manner
whatsoever for the sufficiency, correctness, genuineness, or validity of the
subject matter of this Escrow Agreement; (c) Escrow Agent shall be protected in
acting upon any written notice, request, waiver, consent, certificate, receipt,
authorization, agreement, power of attorney, or other instrument that Escrow
Agent in good faith believes to be genuine and what it purports to be.

         As between MD and the Escrow Agent, MD agrees to indemnify the Escrow
Agent and its officers, directors, employees, agents and attorneys
(collectively, the "Indemnified Parties") against and hold the Indemnified
Parties harmless from any and all losses, costs, damages, expenses, claims, and
attorney's fees suffered or incurred by the Indemnified Parties as a result of,
in connection with or arising from or out of the acts or omissions of any
Indemnified Party in performance of or pursuant to this Escrow Agreement, except
such acts or omissions as may result from such Indemnified Party's willful
misconduct or gross negligence.

         All protections and indemnities benefitting the Escrow Agent (and any
other Indemnified Party) are cumulative of any other rights it (or they) may
have by law or otherwise, and shall survive the termination of the Escrow
Agreement or the resignation or removal of the Escrow Agent.

         7. Termination. This Escrow Agreement shall terminate upon the first to
occur of any one of the following: December 31, 2005; (a) the full disbursement
of the Escrow Funds with respect to the final Partnership; (b) the written
agreement of termination by MD and Escrow Agent; or (c) the dissolution,
insolvency, or involuntary bankruptcy of MD or an affiliate thereof.

         8. Miscellaneous.

                  (a) All notices, demands, requests, and other communications
required or permitted hereunder shall be in writing and shall be deemed to be
delivered when actually received at the address of the addressee set forth below
its name on the signature page of this Escrow Agreement. The rights and
obligations under this Escrow Agreement may not be assigned or delegated by any
party hereto without the prior written consent of the other party hereto. This
Escrow Agreement constitutes the entire agreement and supersedes all other prior

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agreements and understandings, whether oral or written, between the parties
hereto with respect to the subject matter hereof;

                  (b) The Escrow Agent may consult with and rely on the advice
of counsel satisfactory to it at any time in respect to any question relating to
its duties or responsibilities hereunder or otherwise in connection herewith,
and shall not be liable for any action taken suffered, or omitted by the Escrow
Agent in good faith upon the advice of such counsel, and shall be fully
protected in doing so, and shall be fully compensated for all costs and expenses
in doing so. The Escrow Agent may act through its officers, employees, agents
and attorneys;

                  (c) Any check included in the Escrow Funds shall be collected
by the Escrow Agent and the proceeds held as part of the Escrow Funds. No monies
shall be disbursed by the Escrow Agent until it has collected funds. The Escrow
Agent may pay out monies held in escrow by its check. The Escrow Agent shall not
be obligated to take any legal action to enforce payment of any item deposited
with it in escrow;

                  (d) The Escrow Agent shall not be liable for any action that
it may do or refrain from doing in connection herewith, except on account of its
own gross negligence or willful misconduct;

                  (e) The Escrow Agent's only duty, liability and responsibility
shall be to deliver the Subscription Agreements to MD and to hold the property
as herein directed and to pay and deliver the same to such persons and under
such conditions as are herein set forth;

                  (f) Should any controversy arise between any party with
respect to this agreement, the Escrow Agent shall have the right to institute a
bill of interpleader in any court of competent jurisdiction to determine the
rights of the parties. Should a bill of interpleader be instituted, or should
the Escrow Agent become involved in litigation in any manner whatsoever on
account of this Agreement or the escrow deposit made hereunder, the obligor, its
successors and assigns shall pay the Escrow Agent reasonable attorneys' fees
incurred by the Escrow Agent and shall indemnify and save the Escrow Agent
harmless from any other disbursements, expenses, losses, costs and damages in
connection with and resulting from such litigation, except such amounts as shall
have been caused by the Escrow Agent's gross negligence or willful misconduct;

                  (g) The Escrow Agent shall be obligated to perform only such
duties as are expressly set forth herein, and no implied covenants or
obligations shall be inferred from this Agreement;

                  (h) The Escrow Agent, or any successor to it hereafter
appointed, may at any time resign by giving prior written notice in writing to
the other parties hereto and shall be discharged from its duties hereunder upon
the appointment of a successor Escrow Agent as hereinafter provided. In the
event of any such resignation, a successor Escrow Agent shall be appointed by
the written consent of the parties hereto. In the event that the parties hereto
fail to appoint a successor Escrow Agent within 30 days of the Escrow Agent's
resignation, the Escrow agent shall have the right to petition a court of
competent jurisdiction to appoint a successor Escrow Agent. Any successor Escrow
Agent shall deliver to the parties hereto a written

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instrument accepting the appointment hereunder, and thereupon it shall succeed
to all the rights and duties of the Escrow Agent hereunder and shall be entitled
to receive all of the Escrow Funds then held by the predecessor Escrow Agent
hereunder;

                  (i) THIS ESCROW AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS, EXCEPT THAT THE PORTIONS OF
THE TEXAS TRUST CODE, SECTION 111.001, ET SEQ. OF THE PROPERTY CODE, V.A.T.S.
CONCERNING FIDUCIARY DUTIES AND LIABILITIES OF TRUSTEES SHALL NOT APPLY TO THIS
AGREEMENT. THE PARTIES EXPRESSLY WAIVE SUCH DUTIES AND LIABILITIES, IT BEING
THEIR INTENT TO CREATE SOLELY AN AGENCY RELATIONSHIP AND HOLD ESCROW AGENT
LIABLE ONLY IN THE EVENT OF ITS GROSS NEGLIGENCE OR WILLFUL MISCONDUCT IN ORDER
TO OBTAIN THE LOWER FEE SCHEDULE RATES AS SPECIFICALLY NEGOTIATED WITH ESCROW
AGENT. ANY LITIGATION CONCERNING THE SUBJECT MATTER OF THIS AGREEMENT SHALL BE
EXCLUSIVELY PROSECUTED IN THE COURTS OF DALLAS COUNTY, TEXAS, AND ALL PARTIES
CONSENT TO THE EXCLUSIVE JURISDICTION AND VENUE OF THOSE COURTS.

         IN WITNESS WHEREOF, the undersigned parties have caused this Escrow
Agreement to be signed and attested to by its duly authorized officers, all as
of the date first written above.

                                    ESCROW AGENT:

                                    REGIONS BANK - TYLER

                                    By: _______________________________________
                                        Raymond W. Cozby III,
                                        Vice President and Trust Officer

                                    Address: Regions Bank - Trust
                                             P.O. Box 2020
                                             Tyler, TX 75710
                                             Telephone No.: (903) 535-4200
                                             Fax No.: (903) 535-4327

                                    MEWBOURNE DEVELOPMENT CORPORATION

                                    By: ________________________________________
                                        John Roe Buckley
                                        Treasurer

                                    Address: 3901 South Broadway
                                             Tyler, Texas 75701
                                             Telephone No.: (903) 561-2900
                                             Fax No.: (903) 561-1515

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