Exhibit 10.51













                      ESTOPPEL, CONSENT AND RECOGNITION AGREEMENT


                  This ESTOPPEL, CONSENT AND RECOGNITION AGREEMENT (this
"Estoppel Agreement"), dated as of August 1, 1995, is executed by SCOTT PAPER
COMPANY, a Pennsylvania corporation ("Scott"), and MOBILE ENERGY SERVICES
COMPANY, L.L.C., an Alabama limited liability company ("MESC"), for the benefit
of BANKERS TRUST (DELAWARE), a Delaware banking corporation, as Collateral Agent
for the Secured Parties (as hereinafter defined) (the "Lender").

                  A. MESC, Mobile Energy Services Holdings, Inc. (formerly known
as Mobile Energy Services Company, Inc.), an Alabama corporation ("Mobile
Energy"), and First Union National Bank of Georgia, as trustee (in such
capacity, the "Taxable Trustee"), have entered into a Trust Indenture dated as
of August 1, 1995 (as the same may be amended, supplemented, waived or otherwise
modified, the "Taxable Indenture"), pursuant to which MESC (i) is issuing its
First Mortgage Bonds, the proceeds of which will be used to (among other things)
repay to The Southern Company a portion of the amounts advanced to pay certain
costs associated with the acquisition of the Energy Complex (as defined in the
Amended and Restated Master Operating Agreement dated as of July 13, 1995 among
Scott, Mobile Energy and the other parties thereto), and (ii) may, from time to
time, issue additional Senior Debt (as defined in the Taxable Indenture).

                  B. MESC, Mobile Energy and The Industrial Development Board of
the City of Mobile, Alabama (the "Board") have entered into an Amended and
Restated Lease and Agreement dated as of August 1, 1995 with respect to part of
the Energy Complex, relating to The Industrial Development Board of the City of
Mobile, Alabama Solid Waste Revenue Refunding Bonds (Mobile Energy Services
Company, L.L.C. Project), Series 1995, to be issued for the benefit of MESC
pursuant to an Amended and Restated Indenture dated as of August 1, 1995 (as the
same may be amended, supplemented, waived or otherwise modified, the Tax- Exempt
Indenture") between the Board and First Union National Bank of Georgia, as
trustee (in such capacity, the "Tax-Exempt Trustee"). The proceeds of the
Tax-Exempt Bonds will be used to refinance certain outstanding tax-exempt bonds
and to pay for certain other costs. MESC may cause the Board to issue, from time
to time, additional debt under such Amended and Restated Indenture.

                  C. MESC and Banque Paribas (together with any lender that is
or becomes a provider of the Working Capital Facility (as hereinafter defined),
the "Working Capital Facility Provider" and, together with the Taxable Trustee
and the Tax-Exempt Trustee, the "Secured Parties") have entered into a Revolving


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Credit Facility dated as of August 1, 1995 (as the same may be amended,
supplemented, waived or otherwise modified, and together with any replacement
working capital facility, the "Working Capital Facility"), borrowings under
which will be used to finance certain working capital requirements of MESC.

                  D. Scott and Mobile Energy have entered into that certain
Lease Agreement dated as of December 12, 1994 (as amended by the First Amendment
to Lease Agreement dated as of July 13, 1995, and as it may be further amended,
restated, renewed, modified or supplemented from time to time with the Lender's
written consent, the "Lease"), whereby, inter alia, Scott has leased to Mobile
Energy certain real property owned by Scott and described in Exhibit A attached
hereto and incorporated herein by this reference (the "Facility Site");

                  E. Pursuant to an Omnibus Deed, Bill of Sale, General
Assignment and Conveyance Agreement between Mobile Energy and MESC dated as of
July 14, 1995, Mobile Energy has assigned to MESC, and MESC has assumed, all of
Mobile Energy's rights and obligations under the Lease; and

                  F. The Lender has been granted a security interest in the
Lease and the Energy Complex for the benefit of the Secured Parties pursuant to
an Intercreditor and Collateral Agency Agreement dated as of August 1, 1995 by
and among the Secured Parties, the Board, the Lender, MESC and Mobile Energy (as
the same may be amended, supplemented, waived or otherwise modified, the
"Intercreditor Agreement"), the Leasehold Mortgage, Assignment of Leases, Rents,
Issues, Profits and Security Agreement and Fixture Filing dated as of August 1,
1995 (as the same may be amended, supplemented, waived or otherwise modified,
the "Mortgage"), the Assignment of Security Agreement dated as of August 1, 1995
between MESC and the Lender, and the other Financing Documents.

                  NOW, THEREFORE, with the understanding that the Lender and the
Secured Parties will be relying on each of the statements contained in this
Estoppel Agreement and that the Lender and the Secured Parties would not enter
into the Intercreditor Agreement and the other Financing Documents without this
Estoppel Agreement, Scott hereby states, certifies, represents and warrants (in
each case, as of the date hereof) and agrees as follows (capitalized terms not
otherwise defined herein having the meanings ascribed thereto in the
Intercreditor Agreement as in effect on the date hereof):

                  1. The Lease has not been supplemented or amended (orally or
in writing), except as described in Recital D above. Attached hereto as Exhibit
B is a true and correct copy of the Lease.

                  2.       The Lease is valid and in full force and effect,
in accordance with its terms, and is the valid and binding

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obligation of Scott as lessor. The Lease has not been surrendered, canceled,
terminated or abandoned, whether in writing or pursuant to a purported oral
surrender, cancellation, termination or abandonment.

                  3.       The Lease constitutes the only written agreement
between Scott and MESC with respect to the interests described
therein.

                  4. Scott has not commenced any pending action or sent any
presently effective notice to MESC (or received any presently effective notice
from MESC) for the purpose of terminating the Lease. Scott is not presently
entitled to terminate the Lease.

                  5.       Scott has not received any notice delivered for
the purpose of terminating the Lease.

                  6. To the best of Scott's knowledge, MESC is not in default in
the performance of the Lease and no event has occurred which with the passage of
time or the giving of notice, or both, would constitute a default by MESC under
the Lease.

                  7. Scott is not in default in the performance of the Lease and
no event has occurred which with the passage of time or the giving of notice, or
both, would constitute a default by Scott under the Lease.

                  8.       Rent under the Lease is One Dollar ($1.00) per
year, payable in advance, and the first installment thereof was
due on December 16, 1994.

                  9. All rent has been paid under the Lease through and
including the rent payable for each rent payment period that includes the date
hereof. As of the date hereof, no rent or any other payments are presently due
under the Lease.

                  10.      The "Effective Date" of the Lease, on which date
the term of the Lease commenced, is December 16, 1994.

                  11. Scott has not assigned, sublet, hypothecated, or otherwise
transferred its interests, or any portion thereof, under the Lease or in its
estate underlying the Lease. Except as described in Recital D above and as
contemplated by this Estoppel Agreement, Scott has not received notice of any
assignment of the Lease by MESC.

                  12. Scott acknowledges and agrees that MESC has the right to
and will encumber its interests under the Lease with the Mortgage and other
security documents. Scott consents to the assignment pursuant to the Mortgage
and other Financing Documents and agrees with the Lender for the benefit of the
Secured Parties that Scott has received notice that the Lender, for the benefit
of the Secured Parties, holds a leasehold mortgage on the leasehold estate of
MESC and is entitled to all rights,

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privileges and protections that apply to the holder of such a leasehold mortgage
under the Lease, subject in each case to the terms and conditions of the
Consents to Assignment between the Lender and each of Scott and the Mill Owners
(the "Consents"), and that Scott has been provided with the Lender's address
herein.

                  13. Scott agrees that notwithstanding anything in the Lease to
the contrary, it will not create any lien, charge, interest, or encumbrance in
or on the Facility Site that is superior to the Lease and/or the lien of the
Mortgage.

                  14. Scott agrees that the Lender and the Secured Parties shall
have the right to enter, possess and use the Facility Site at such reasonable
times and manner as are necessary or desirable to effectuate the remedies and
enforce the rights of Lender and the Secured Parties under the Financing
Documents; provided, however, that such entry, possession or use shall be
strictly in accordance with the terms and conditions of the Consents.

                  15. None of senior management of Scott, the Pulp Mill SOC
Representative (as defined in the Master Operating Agreement) and the Tissue
Mill SOC Representative (as defined in the Master Operating Agreement) has
received notice of any other holder of a leasehold mortgage on or holder of any
other security interest in the leasehold estate of MESC under the Lease other
than the Mortgage.

                  16.      Scott hereby represents and warrants that:

                           (a) The execution, delivery and performance by Scott
         of the Lease and this Estoppel Agreement have been duly authorized by
         all necessary corporate action, and do not require any further consents
         or approvals which have not been obtained, or violate any provision of
         any law, regulation, order, judgment, injunction or similar matters or
         breach any agreement presently in effect with respect to or binding on
         Scott;

                           (b) This Estoppel Agreement is the legal, valid and
         binding obligation of Scott, and this Estoppel Agreement and the Lease
         are enforceable against Scott in accordance with their terms, except as
         such enforcement may be limited by (i) bankruptcy, insolvency,
         reorganization, moratorium or similar laws of general applicability
         affecting the enforcement of creditors' rights generally, and (ii) the
         application of general principles of equity (regardless of whether such
         enforceability is considered in a proceeding in equity or at law); and

                           (c)      All government approvals necessary for the
         execution and delivery of and performance by Scott of its

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         obligations under the Lease have been obtained and are in
         full force and effect.

                  17. All notices required or permitted hereunder shall be in
writing and shall be effective (a) upon receipt if hand delivered, (b) upon
telephonic verification of receipt if sent by telefacsimile and (c) if otherwise
delivered, upon the earlier of receipt or two (2) business days after being sent
registered or certified mail, return receipt requested, with proper postage
affixed thereto, or by private courier or delivery service with charges prepaid,
and addressed as specified below:

                           If to Scott:

                           Scott Paper Company
                           Scott Plaza
                      Philadelphia, Pennsylvania 19113-1585
                           Attn: Thomas C. Deas, Jr.
                           FAX: (215) 522-5665

                           with copy to:

                      Skadden, Arps, Slate, Meagher & Flom
                           1440 New York Avenue, N.W.
                           Washington, D.C.  20005
                           Attn: Martin Klepper, Esq.
                           FAX: (202) 393-5760


                           If to the Lender:

                           Bankers Trust (Delaware)
                           c/o Bankers Trust Company
                           Four Albany Street, 4th Floor
                           New York, New York  10006
                           Attn:  Corporate Trust and Agency Group
                           FAX: 212-250-6961

                           with copy to:

                           Seward & Kissel
                           One Battery Park Plaza
                           New York, New York 10004
                           Attn: Kalyan Das
                           FAX:212-480-8421


Each party may change its address to another address within the United States by
notice in accordance with this paragraph.

                  18. This Estoppel Agreement shall be binding upon and benefit
the successors and assigns of Scott, MESC, the Lender, the Secured Parties, and
their respective successors, transferees and assigns (including, without
limitation, any entity that

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refinances all or any portion of the obligations under the Financing Documents).
Scott agrees to confirm such continuing obligation in writing upon the
reasonable request of MESC, the Lender, the Secured Parties, or any of their
respective successors, transferees and assigns. No termination, amendment,
variation or waiver of any provisions of this Estoppel Agreement shall be
effective unless in writing and signed by Scott, the Lender and MESC. To the
extent this Estoppel Agreement conflicts in any way with the Lease, this
Estoppel Agreement is intended to modify and supersede the Lease. Any such
conflict shall be resolved in favor of this Estoppel Agreement. If all or any
portion of any provision of this Estoppel Agreement is held to be invalid,
illegal or unenforceable in any respect, then such invalidity, illegality, or
unenforceability shall not affect any other provision of this Estoppel
Agreement. This Estoppel Agreement shall be governed by the laws of the State of
New York, without reference to principles of conflicts of laws (other than
Section 5-1401 of the New York General Obligations Law).

                  19. Notwithstanding anything in the Lease to the contrary, the
parties hereto agree that the effectiveness of this Estoppel Agreement, and the
rights of the Lender as a leasehold mortgagee under the Lease and hereunder,
shall in no way be conditioned on the recording of this Estoppel Agreement.

                  20. This Estoppel Agreement may be executed in one or more
duplicate counterparts, and when executed and delivered by all the parties
listed below, shall constitute a single binding agreement.

                  21. It is expressly understood and agreed by the parties
hereto that this Estoppel Agreement has been executed by Bankers Trust
(Delaware), not in its individual capacity, but solely as Collateral Agent for
the Secured Parties in the exercise of the power and authority conferred and
vested in it.

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<PAGE>



                  IN WITNESS WHEREOF, Scott, by its officer thereunto duly
authorized, has duly executed this Estoppel Agreement as of the date first set
forth above.


                        SCOTT PAPER COMPANY,
                        a Pennsylvania corporation



                        By:      /s/
                            Name:         Thomas C. Deas, Jr.
                            Title: Assistant Treasurer



Accepted and agreed to:


BANKERS TRUST (DELAWARE),
  as the Lender



By:      /s/
    Name:         James H. Stallkamp
    Title: President


MOBILE ENERGY SERVICES COMPANY, L.L.C.,
  an Alabama limited liability company




By:      /s/
    Name:         Christopher J. Kysar
    Title:  Vice President



<PAGE>





STATE OF  PENNSYLVANIA                      )
                                            )  ss.:
COUNTY OF DELAWARE                          )

                  I, the undersigned Notary Public in and for said County in
said State, hereby certify that Thomas C. Deas, Jr. whose name as Assistant
Treasurer of Scott Paper Company, a Pennsylvania corporation, is signed to the
foregoing Estoppel, Consent and Recognition Agreement and who is known to me,
acknowledged before me on this day that, being informed of the contents of the
instrument, he, as such officer and with full authority, executed the same
voluntarily for and as the act of said corporation.

                  Given under my hand and seal this the 18th day of August,
1995.


                               /s/                                    (seal)
                           Notary Public


STATE OF DELAWARE                           )
                                            )  ss.:
COUNTY OF NEW CASTLE                        )

                  I, the undersigned Notary Public in and for said County in
said State, hereby certify that James H. Stallkamp whose name as President of
Bankers Trust (Delaware), a Delaware banking corporation, is signed to the
foregoing Estoppel, Consent and Recognition Agreement and who is known to me,
acknowledged before me on this day that, being informed of the contents of the
instrument, he, as such officer and with full authority, executed the same
voluntarily for and as the act of said Delaware banking Corporation.

                  Given under my hand and seal this the 21st day of August,
1995.



                                /s/                               (seal)
                           Notary Public









                                                        -8-

<PAGE>



STATE OF NEW YORK                           )
                                            )  ss.:
COUNTY OF NEW YORK                  )

                  I, the undersigned Notary Public in and for said County in
said State, hereby certify that Chris Kysar whose name as Vice President of
Mobile Energy Services Company, L.L.C., an Alabama limited liability companyon,
is signed to the foregoing Estoppel, Consent and Recognition Agreement and who
is known to me, acknowledged before me on this day that, being informed of the
contents of the instrument, he, as such officer and with full authority,
executed the same voluntarily for and as said corporation.

                  Given under my hand and seal this the 23rd day of August,
1995.



                              /s/                                 (seal)
                           Notary Public



<PAGE>


                                   EXHIBIT "A"


Parcel A:

Lots 7 and 9 of Scott Paper Company Subdivision as shown on the plat thereof as
recorded in Map Book 64, Page 39, in the records appearing in the Office of the
Judge of Probate of Mobile County, Alabama.



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