Document:

<PAGE>   1

                                                                   EXHIBIT 10.27

                                  OFFICE LEASE

         THIS LEASE, effective September 15, 2000 ("Lease"), is made by and
between Brittmoore Interests, a partnership with principal offices at 9211 Reid
Lake Drive, Houston, Texas 77064 (hereinafter referred to as "Lessor"), and
Chelsea Market Systems, LLC, a limited liability corporation formed in the state
of Delaware and with its principle offices at 1147 Brittmoore, Road Houston,
Texas 77043-5003 (hereinafter referred to as "Lessee").

         WITNESSETH: That the said Lessor hereby leases and demises unto the
said Lessee the following described premises: the office building located at
1147 Brittmoore Road, Houston, Texas 77043-5003, which includes 9,700 square
feet of office building ("Premises") and the surrounding parking area and
grounds

     TO HAVE AND TO HOLD the Premises from September 15, 2000, for the term of
one (1) year thereafter, the said Lessee paying to the Lessor the monthly rent
of eight thousand two hundred forty-five dollars ($8,245), [$ 98,940 per year],
or eighty-five cents ($.85) per square foot first being due on September 15,
2000, (prorated for the first partial month) which said sum is to be paid
concurrent with the execution of this document and acknowledged herein, and the
remaining eleven payments, in equal amounts, due on the 1st day of each
succeeding month during the term of this Lease, subject to the following
covenants:

1.   Lessor grants to Lessee four (4) options to extend the term of this Lease
     for a period of one (1) year each ["Extension Term(s)"]. Lessee shall
     provide written notice of its intention to extend the term at least ninety
     (90) days prior to the expiration of the then-current term. All terms and
     conditions of this Lease shall continue in full force and effect during any
     Extension Term, excepting only that monthly rent shall be increased,
     effective the first day of each Extension Term, to: the product, obtained
     by multiplying the monthly rent in effect during the last month of the
     then-current term by a fraction, the numerator of which is the Index
     published nearest but prior to the commencement date of the recently
     exercised Extension Term, and the denominator of which is the Index
     published nearest but prior to the commencement of the prior term.

     The term "Index" means the Consumer Price Index for Urban Wage Earners and
     Clerical Workers, published by the Bureau of Labor Statistics of the United
     States Department of Labor for the Greater Houston, Texas Metropolitan
     Area.

2.   The Lessee hereby covenants with the Lessor that the Lessee will pay the
     rent herein reserved at the times and in the manner aforesaid, and will
     pay, directly to providers in a timely manner, all charges for utilities,
     services, maintenance, and repairs, including but not limited to gas,
     electricity, water, security, landscaping/lawn care, trash disposal,
     extermination, telephone, and taxes imposed against the Premises. Should
     said rent or charges herein provided for at any time remain due and unpaid
     for a period of ten (10) days following receipt of written notice of
     non-payment, Lessor may at Lessor's option, consider Lessee a Lessee at
     sufferance and immediately re-enter upon the Premises and the entire rent
     for the monthly rental period then next ensuing shall at once be due and
     payable and may be immediately collected by distress or otherwise. The
     Lessee will not use or permit the

<PAGE>   2

     Premises to be used for any illegal or improper purposes, nor permit the
     disturbance, noise or annoyance whatsoever, detrimental to the Premises or
     to the comfort of the other Lessees, if any, of said building or its
     neighbors; and will not sublet or assign this lease nor any part thereof
     without the written consent of the Lessor, which consent shall not be
     unreasonably withheld or delayed. Notwithstanding the foregoing, Lessee
     may, upon notice to but without the consent of Lessor, assign or sublet
     this Lease in the following circumstances: (i) in the event of a sale or
     other transfer of all or substantially all of the stock and/or assets of
     Lessee; (ii) in the event of a merger or consolidation; and/or (iii) an
     assignment or sublet to a parent, subsidiary or affiliated entity.

3.   The Lessee will keep the non-structural interior of the Premises, and all
     windows, doors, fixtures, interior walls, pipes, and other appurtenances,
     together with the parking lot and landscaping surrounding the Premises
     (except as set forth below) in good and substantial repair and in clean
     condition, damage by fire, storm or other casualty excepted; and will
     exercise all reasonable care in the use of halls, stairs, bathrooms,
     closets, and other fixtures and parts of the Premises; and will also permit
     the Lessor or Lessor's agents or employees, at all reasonable times upon
     reasonable notice, to enter into the Premises and inspect the condition
     thereof, and make such repairs as may be necessary; and will at the
     expiration of said term, without demand, quietly and peaceably deliver up
     the possession of the said Premises in good state and condition, normal
     wear and tear, damage or destruction by Lessor, fire, storm or other
     casualty excepted.

4.   The Lessor shall keep, at its sole cost and expense, all structural
     portions of the Premises, the walls, foundation, roof and roof components
     and utilities to and under the floor slab of the Premises, plumbing,
     mechanical, electrical and HVAC systems in good condition and repair.
     Additionally, Lessor shall, at its sole cost and expense, replace the
     parking lot, perform any major resurfacing required thereof, and replace
     any and all landscaping, as necessary.

5.   The Lessor hereby covenants with the Lessee that in case the building in
     which the Premises is located and/or the Premises or any part thereof,
     shall at any time be destroyed or so damaged by fire,storm or other
     casualty as to render same unfit for occupation or use, said Lessor shall
     have the option to terminate this Lease, or to repair and rebuild the
     Premises refunding or foregoing the rents hereby reserved, or a fair and
     just portion thereof, according to the damage sustained, until the Premises
     are repaired and fit for occupancy and use; and that the Lessee may quietly
     hold and enjoy the Premises without any interruption by the Lessor or any
     person claiming under the Lessor.

6.   Insurance.

          A.   Liability Insurance.

                    (1) Lessee shall, at Lessee's expense, obtain and keep in
                    force during the term of this Lease a policy of combined
                    single limit, general commercial liability insurance
                    covering bodily injury and property damage insuring Lessee
                    (and Lessor and Lessor's mortgagee as additional insureds)
                    against any liability arising out of the use or, occupancy
                    of the Premises. Such insurance shall be a combined

<PAGE>   3

                    single limit policy in an amount not less than One Million
                    Dollars ($1,000,000) per occurrence. Lessee shall maintain
                    Worker's Compensation insurance at least in amounts required
                    by the State of Texas. Lessee may carry such insurance in a
                    blanket form of coverage.

                    (2) Lessor shall maintain general commercial liability
                    insurance covering bodily injury and property damage with
                    minimum limits of Two Million Dollars ($2,000,000.00) per
                    occurrence for the Premises and the surrounding parking lot
                    and grounds. Such coverage may be carried in the form of
                    primary and any other secondary coverage carried by Lessor
                    including Lessor's umbrella policy, but which shall at all
                    times total a minimum of Two Million Dollars
                    ($2,000,000.00).

          B. Property Insurance.

                    (1) Lessor shall obtain and keep in force during the term of
                    this Lease a policy or policies of insurance covering loss
                    or damage to the Premises, in the amount of the full
                    replacement value thereof, as the same may exist from time
                    to time, but in no event less than ninety percent (90%) the
                    total amount required by lenders having liens on the
                    Premises, insuring the Premises against all perils included
                    within the classification of fire, extended coverage,
                    vandalism, malicious mischief, flood (in the event same is
                    required by a lender having a lien on the Premises), and
                    special extended perils ("all risk" as such term is used in
                    the insurance industry). Said insurance shall provide for
                    payment of loss thereunder to Lessor or to the holders of
                    mortgages or deeds of trust on the Premises.

                    (2) Lessee shall maintain property insurance on all of
                    Lessee's personal property in the Premises; provided,
                    however, that Lessee may self-insure plate glass or any
                    other insurance required under this provision. Lessee shall
                    replace all damaged plate glass except that damaged by
                    Lessor or its agents or replace any other personal property
                    at Lessee's sole cost, excepting for costs incurred for any
                    damage, if caused by Lessor or its agents.

          C. Mutual Waiver of Subrogation. Lessee and Lessor each hereby release
          and relieve the other, and waive their entire right of recovery
          against the other for loss or damage arising out of or incidental to
          the perils insured against under this paragraph, which perils occur
          in, on or about the Premises and/or the surrounding parking lot and
          grounds, whether due to the negligence of the other party or their
          respective agents, employees, contractors and/or invitees. Lessee and
          Lessor shall, upon obtaining the policies of insurance required
          hereunder, give notice to the insurance carrier or carriers that the
          foregoing mutual waiver of subrogation is contained in this Lease.

7.   Indemnity.

                    (a) Except for the negligence or willful misconduct of
                    Lessor or its agents, Lessee shall indemnify and hold
                    harmless Lessor, its members, agents, contractors, employees
                    and invitees, from and against any and all claims arising

<PAGE>   4

                    from Lessee's use of the Premises, or from the conduct of
                    Lessee's business or from any activity, work or things done,
                    permitted or suffered by Lessee in or about the Premises and
                    shall further indemnify and hold harmless Lessor, its
                    members, agents, contractors, employees, and invitees, from
                    and against any and all claims arising from any breach or
                    default in the performance of any obligation on Lessee's
                    part to be performed under the terms of this Lease, or
                    arising from any negligence or willful misconduct of the
                    Lessee, or any of Lessee's agents, contractors, or
                    employees, and from and against all costs, attorney's fees,
                    expenses and liabilities incurred in the defense of any such
                    claim or any action or proceeding brought thereon; and in
                    case any action or proceeding be brought against Lessor by
                    reason of any such claim, Lessee, upon written notice from
                    Lessor, shall defend the same at Lessee's expense;
                    alternatively, Lessee may select its own counsel, at
                    Lessor's expense; such indemnity shall survive the
                    expiration or earlier termination of this Lease. Excepting
                    claims arising out of the negligence or willful misconduct
                    of Lessor or its agents, Lessee, as a material part of the
                    consideration to Lessor, hereby assumes all risk of damage
                    to the Premises or injury to person, in, upon or about the
                    parking area and ground surrounding the Premises arising
                    from any cause and Lessee hereby waives all claims in
                    respect thereof against Lessor.

                    (b) Except for the negligence or willful misconduct of
                    Lessee or its agents, Lessor shall indemnify and hold
                    harmless Lessee, its shareholders, officers, directors,
                    members, agents, contractors, employees, and invitees, from
                    and against any and all claims arising from Lessor's use or
                    ownership of the The parking and landscaped area surrounding
                    the Premises, or from activity, work or things done
                    permitted or suffered by Lessor in or about the common areas
                    of the The parking and landscaped area surrounding the
                    Premises and shall further indemnify and hold harmless
                    Lessee from and against any an all claims arising from any
                    breach or default in the performance of any obligation on
                    Lessor's part to be performed under the terms of this Lease,
                    or arising from any negligence or willful misconduct of the
                    Lessor, or any of Lessor's agents, contractors, or
                    employees, and from and against all costs, attorney's fees,
                    expenses and liabilities incurred in the defense of any such
                    claim or any action or proceeding brought thereon; and in
                    case of action or proceeding be brought against Lessee by
                    reason of any such claim, Lessor, upon written notice from
                    Lessee, shall defend the same at Lessor's expense;
                    alternatively, Lessee may select its own counsel, at
                    Lessor's expense; such indemnity shall survive the
                    expiration or earlier termination of this Lease. Excepting
                    claims arising from the negligence or willful misconduct of
                    Lessee or its agents, Lessor, as a material part of the
                    consideration to Lessee, hereby assumes all risk of damage
                    to The parking and landscaped area surrounding the Premises
                    or injury to persons, in, upon or about the Common Areas
                    arising from any cause and Lessor hereby waives all claims
                    in respect thereof against Lessee.

8.   Insurance Requirements. All of the foregoing policies required pursuant to
     the provisions hereinabove shall be written with companies with at least a
     Best's rating of A-:VIII and each such company shall be licensed and
     qualified to do business in the State of Texas

<PAGE>   5

     and shall provide that the other party hereto shall be given a minimum of
     ten (10) days written notice by any such insurance company prior to
     cancellation or termination of such coverage.

9.   Lessor Defaults. Except in the case of an emergency, in which event
     immediate action shall be required by Lessor, Lessor shall not be in
     default unless Lessor fails to perform obligations required of Lessor
     within thirty (30) days after written notice by Lessee to Lessor and to the
     holder of any mortgage or deed of trust covering the Premises and/or The
     parking and landscaped area surrounding the Premises whose name and address
     shall have theretofore been furnished to Lessee in writing; provided,
     however, that if the nature of Lessor's obligations is such that more than
     thirty (30) days are required for performance, then Lessor shall not be in
     default if Lessor commences performance within such thirty (30) day period
     and thereafter diligently prosecutes the same to completion. If the default
     by Lessor has not been cured within the time limits prescribed herein,
     Lessee may, along with any other remedies available at law or in equity,
     terminate the Lease as a result of Lessor's default, or cure the default
     and offset any claimed amount, plus interest at eighteen percent (18%) per
     annum (provided, however, that such interest rate shall not exceed the
     maximum rate allowed by law) against any minimum or additional Rent as it
     becomes due.

10.  Condemnation. If the Premises or any portion thereof are taken under the
     power of eminent domain, or sold under the threat of the exercise of said
     power (all of which are herein called "condemnation"), this Lease shall
     terminate as to the part so taken as of the date the condemning authority
     takes title or possession, whichever first occurs. If twenty percent (20%)
     of the Premises or more than twenty-five percent (25%) of the The parking
     and landscaped area surrounding the Premises is taken by condemnation,
     Lessor or Lessee may, at its respective option, by electing in writing
     within thirty (30) days after Lessor shall have given Lessee written notice
     of such taking (or in the absence of such notice, within thirty (30) days
     after the condemning authority shall have taken possession), to terminate
     this Lease as of the date the condemning authority takes such possession.
     Notwithstanding the foregoing, Lessee shall be entitled to an abatement of
     Rent in the event any entry by Lessor or Lessor Work required with respect
     to a partial condemnation of the Premises interferes with Lessee's
     operations, to the extent Lessee is required to close and such abatement
     shall continue until Lessee can resume operating.

     If Lessor or Lessee does not terminate this Lease in accordance with the
     foregoing, this Lease shall remain in full force and effect as to the
     portion of the Premises remaining, except that the Rent shall be
     proportionately reduced. Any award for the taking of all or any part of the
     Premises under the power of eminent domain or any payment made under threat
     of the exercise of such power shall be property of Lessor, whether such
     award shall be made as compensation for diminution in value of the
     leasehold or for the taking of the fee, or as severance damages; provided,
     however, that Lessee shall be entitled to any award for relocation costs
     and loss of or damage to Lessee's trade fixtures and removable personal
     property. In the event that this Lease is not terminated by reason of such
     condemnation, Lessor shall to the extent of severance damages received by
     Lessor in connection with such condemnation, repair any damage to the
     Premises caused by such

<PAGE>   6

     condemnation except to the extent that Lessee has been reimbursed therefore
     by the condemning authority. In addition, Lessee shall be entitled to claim
     any other award allowed under law provided such claim does not diminish or
     adversely affect Lessor's award.

11.  Lessee's Rights. If Lessor fails to perform Lessor's obligations under this
     Paragraph 6, or under another Paragraph of this Lease, within thirty (30)
     days after receipt of written notice of such default (except in the case of
     an emergency, in which case no notice shall be required); provided, however
     if such default is not capable of being cured within such thirty (30) day
     period, so long as Lessor is diligently attempting to obtain a cure, Lessor
     shall have such additional time to attempt to obtain such cure, Lessee may
     at its option (but shall not be required to) perform such obligations on
     Lessor's behalf and put the same in good order, condition and repair, and
     the cost thereof shall be due and payable by Lessor within ten (10) days
     after written notice to Lessor, or, in the alternative, Lessee may offset
     said amounts against Rent.

12.  The parties hereto waive trail by jury and agree to submit to the personal
     jurisdiction and venue of a court of subject matter jurisdiction located in
     Harris County, Texas.

13.  Except in the case of an emergency, in which event immediate action shall
     be required by Lessor, Lessor shall not be in default unless Lessor fails
     to perform obligations required of Lessor within thirty (30) days after
     written notice by Lessee to Lessor and to the holder of any mortgage or
     deed of trust covering the Premises whose name and address shall have
     theretofore been furnished to Lessee in writing; provided, however, that if
     the nature of Lessor's obligations is such that more than thirty (30) days
     are required for performance, then Lessor shall not be in default if Lessor
     commences performance within such thirty (30) day period and thereafter
     diligently prosecutes the same to completion. If the default by Lessor has
     not been cured within the time limits prescribed herein, Lessee may, along
     with any other remedies available at law or in equity, terminate the Lease
     as a result of Lessor's default, or cure the default and offset any claimed
     amount, plus interest at eighteen percent (18%) per annum (provided,
     however, that such interest rate shall not exceed the maximum rate allowed
     by law) against any base or additional rent as it becomes due.

14.  Any notice required or permitted to be given hereunder shall be in writing
     and may be given by personal delivery, courier or expedited mail service or
     by certified mail, and if given personally or by mail, shall be deemed
     sufficiently given if addressed to Lessee or to Lessor at the address noted
     below. Either party may by notice to the other specify a different address
     for notice purposes. A copy of all notices required or permitted to be
     given to Lessor or Lessee hereunder shall be concurrently transmitted to
     such party or parties at such address as Lessor or Lessee may from time to
     time hereafter designate by notice to the other party.

<PAGE>   7

           Notices to Lessee shall be sent to the following address:

                     Chelsea Market Systems, LLC
                     1147 Brittmoore Road
                     Houston, Texas 77043-5003

           Notices to Lessor shall be sent to the following address:

                     Brittmoore Interests
                     9211 Reid Lake Drive
                     Houston, Texas 77064

15.  Neither party may assign this Lease without the written consent of the
     other party. Notwithstanding the foregoing, Lessee may assign this Lease
     upon notice to but without Lessor's consent in the event of a merger,
     consolidation or sale or other transfer of all or substantially all of the
     membership interests of Lessee.

16.  Holding Over. If Lessee, with Lessor's consent, remains in possession of
     the Premises or any part thereof after the expiration of the term hereof,
     such occupancy shall be a tenancy from month to month upon all the
     provisions of the Lease pertaining to the obligations of Lessee. Options
     granted under the terms of this Lease shall be deemed terminated and be of
     no further effect during said month to month tenancy.

17.  Binding Effect; Choice of Law. This Lease shall bind the parties, their
     personal representatives, successors and assigns. This Lease shall be
     governed by the laws of the state wherein the Premises are located.

18.  Attorney's Fees. If either party named herein brings an action to enforce
     the terms hereof or declare the rights hereunder, the prevailing party in
     any such action shall be entitled to its reasonable attorney's fees to be
     paid by the losing party, as fixed by the court.

19.  Quiet Possession. Upon Lessee paying the Rent for the Premises and
     observing and performing all of the covenants, conditions and provisions on
     Lessee's part to be observed and performed hereunder, Lessee shall have
     quiet possession of the Premises for the entire term hereof subject to all
     of the provisions of this Lease.

20.  Force Majeure. Lessor and/or Lessee shall be excused for the period of
     delay in the performance of any of their respective obligations hereunder,
     excepting Lessor's obligation to pay a penalty for late delivery pursuant
     to Paragraph 3.3 hereof, and excepting Lessee's monetary obligations
     hereunder, and shall not be considered in default, when prevented from so
     performing due to a labor strike, riot, war, fire or other casualty, or
     through Acts of God.

<PAGE>   8

         The parties hereto have executed this Lease on the dates specified
immediately below their respective signatures.

LESSOR                                LESSEE

Brittmoore Interests                  Chelsea Market Systems, LLC
a Texas partnership                   a Delaware Limited Liability Corporation

By: /s/ JAY CONLIN                    By: /s/ HARRY LEVY
    ------------------                    -------------------
    Jay Conlin                            Harry Levy
    Partner                               President

Dated:  March 22, 2001                Dated:  March 22, 2001.<PAGE>

                                                                    EXHIBIT 4.13

  COMMON STOCK                                                  COMMON STOCK
CERTIFICATE NUMBER                                                 SHARES

                                    Peabody
$0.01 PAR VALUE PER SHARE                             $0.01 PAR VALUE PER SHARE

                        INCORPORATED UNDER THE LAWS OF
                             THE STATE OF DELAWARE
                                                            CUSIP 693064 10 7
          THIS CERTIFICATE IS TRANSFERABLE              SEE REVERSE FOR CERTAIN
   IN CANTON, MA, JERSEY CITY, NJ OR NEW YORK, NY             DEFINITIONS

This Certifies that

is the owner of

    FULLY PAID AND NON-ASSESSABLE SHARES OF

PAR VALUE OF $0.01 PER SHARE OF PEABODY ENERGY CORPORATION transferable on the
books of the Corporation in person or by duly authorized attorney upon surrender
of the Certificate properly endorsed. This Certificate is not valid until
countersigned by the Transfer Agent and registered by the Registrar.

    Witness the facsimile seal of the Corporation and the
facsimile signatures of its duly authorized officers.

    Dated:

EXECUTIVE VICE PRESIDENT AND SECRETARY       CHAIRMAN AND CHIEF EXECUTIVE
                                                       OFFICER

                                        Countersigned and Registered
                                           EQUISERVE TRUST COMPANY, N.A.
                                              Transfer Agent and Registrar,

                                        By

                                                       Authorized Signature

                          PEABODY ENERGY CORPORATION
                                CORPORATE SEAL
                                     1998
                                   DELAWARE
<PAGE>

                          PEABODY ENERGY CORPORATION

The Corporation will furnish without charge to each stockholder who so
requests, a copy of the designations, powers, preferences and relative,
participating, optional or other special rights of each class of stock or
series thereof and the qualifications, limitations or restrictions of such
preferences and/or rights. Any such requests may be addressed to the Secretary
of the Corporation.

The following abbreviations, when used in the inscription on the face of this
certificate, shall be construed as though they were written out in full
according to applicable laws and regulations:

TEN COM - as tenants in common    UNIF GIFT MIN ACT - ______ Custodian ______
                                                      (Cust)           (Minor)
TEN ENT - as tenants by the
          entireties

JT TEN  - as joint tenants with right of    under Uniform Gifts to Minors Act
          survivorship and not as tenants   _________________________________
          in common                                      (State)

 Additional abbreviations may also be used though not in the above list.

For value received, _______________________________________________ hereby
sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
 IDENTIFYING NUMBER OF ASSIGNEE

_________________________________________

_______________________________________________________________________________
(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF
ASSIGNEE)

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

________________________________________________________________________ Shares
of the Stock represented by the within Certificate, and do hereby irrevocably
constitute and appoint

_______________________________________________________________________________
Attorney to transfer the said Stock registered on the books of the within
named Corporation with full power of substitution in the premises.

Dated ___________________      ___________________________________________

Signature(s) Guaranteed        ___________________________________________
                               THE SIGNATURE TO THIS ASSIGNMENT MUST
                               CORRESPOND WITH THE NAME AS WRITTEN UPON THE
                               FACE OF THIS CERTIFICATE IN EVERY PARTICULAR,
                               WITHOUT ALTERATION OR ENLARGEMENT, OR ANY
                               CHANGE WHATEVER.

By___________________________________________
  THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN
  ELIGIBLE GUARANTOR INSTITUTION (BANKS,
  STOCKBROKERS, SAVINGS AND LOAN
  ASSOCIATIONS AND CREDIT UNIONS WITH
  MEMBERSHIP IN AN APPROVED SIGNATURE
  GUARANTEE MEDALLION PROGRAM), PURSUANT TO
  S.E.C. RULE 17Ad. 15.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00024-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00024-of-00352.parquet"}]]