Document:

Interest Rate Cap Transaction

Date:                                      2l September 2004

To:                                        QUEST CHEROKEE, LLC ("Counterparty")

Attention:                                 DAVID GROSE

Fax No:                                    0014054881156

From:                                      UBS AG, London Branch ("UBS AG")

Subject:                                   Interest Rate Cap Transaction
                                           UBS AG Ref   37014557

Dear Sirs

The purpose of this  communication is to confirm the terms and conditions of the
Transaction  entered into  between us on the Trade Date  specified  below.  This
Confirmation constitutes a "Confirmation" as referred to in the Master Agreement
or Agreement specified below.

The  definitions  contained  in the 2000 ISDA  Definitions  as  published by the
International  Swaps and Derivatives  Association,  Inc., are incorporated  into
this  Confirmation.  In  the  event  of  any  inconsistency  between  any of the
definitions listed above and this Confirmation, this Confirmation will govern.

If you and we are parties to a master  agreement  that governs  transactions  of
this type (whether in the form of the ISDA Master Agreement (Multicurrency-Cross
Border)(the  "ISDA  Form") or any other form (a "Master  Agreement"),  then this
Confirmation  will  supplement,  form a part of, and be  subject to that  Master
Agreement.  If you and we are not parties to such a Master  Agreement,  then you
and we agree to use all reasonable  efforts  promptly to negotiate,  execute and
deliver an agreement in the form of the ISDA Form,  with such  modifications  as
you and we will in good faith agree. Upon the execution by you and us of such an
agreement,  this Confirmation will supplement,  form a part of and be subject to
and governed by that  agreement  except as expressly  modified  below.  Until we
execute and deliver that agreement,  this Confirmation,  together with all other
documents  referring  to  the  ISDA  Form  (each  a  "Confirmation")  confirming
transactions  (each a  "Transaction")  entered into between us  (notwithstanding
anything to the contrary in a confirmation),  shall supplement,  form a part of,
and be  subject  to an  agreement  in the  form  of the  ISDA  Form as if we had
executed an  agreement  in such form (but  without any  Schedule  except for the
election  of the laws of England as the  Governing  Law and U.S.  Dollars as the
Termination  Currency)  on the Trade  Date of the first  Transaction  between us
(hereinafter the  "Agreement").  In the event of any  inconsistency  between the
provisions of any such Agreement and this  Confirmation,  this Confirmation will
prevail for the purposes of this Transaction.

The terms of the particular Swap Transaction to which this Confirmation relates
are as follows:

--------------------------------------------------------------------------------
                                                                          Page 1
UBS AG Ref:       37014557
C/P Ref:      Please advise

<PAGE>

General Terms
-------------

Trade Date:             21 September 2004

Effective Date:         21 March 2006

Termination Date:       21  September 2007 , subject to adjustment in accordance
                        with the Modified Following Business Day Convention.

Notational Amount:      Initially USD 98,705,000.00 amortising as per the Amort-
                        ising Schedule below

Amortising Schedule
-------------------
Period Start Date                Period End Date            Calculation Amount
-----------------                ---------------            ------------------
Effective Date                   21 June 2006               USD 98,705,000.00
21 June 2006                     21 September 2006          USD 93,242,500.00
21 September 2006                21 December 2006           USD 87,780,000.00
21 December 2006                 21 March 2007              USD 84,265,000.00
21 March 2007                    21 June 2007               USD 80,750,000.00
21 June 2007                     21 August 2007             USD 75,477,500.00
21 August 2007                   21 September 2007          USD 70,174,600.00

The dates in the above schedule with the exception of the Effective Date will be
subject to adjustment in accordance  with  the  Modified  Following Business Day
Convention.

Seller of Cap:                   UBS AG

Buyer of Cap:                    Counterparty

Calculation Agent:               UBS AG, unless otherwise stated in the Schedule
                                 to the Master Agreement.

Business Days:                   London, New York

Broker:                          None

Fixed Amounts
-------------

Fixed Rate Payer:                Counterparty

Fixed Amount:                    USD 395,000.00

Fixed Rate Payer Payment Date:   23 September  2004,  subject to adjustment  in
                                 accordance with the  Business  Day  Convention
                                 specified below.

Business Day Convention:         Following

Cap Payment Details
-------------------

Floating Rate Payer:             UBS AG

Cap Rate:                        5 percent per annum

--------------------------------------------------------------------------------
                                                                          Page 2
UBS AG Ref:       37014557
C/P Ref:      Please advise

<PAGE>

The following details refer to the Cap:

Floating Amounts
----------------

Floating Rate Option:               USD-LIBOR-BBA

Designated Maturity:                3  Month,  with  the  exception of the final
                                    Two Calculation Periods, where Linear Inter-
                                    polation shall apply

Spread:                             None

Floating Rate Day Count Fraction:   Actual/360

Floating Rate Payer Payment Dates:  21 June 2006, 21 September 2006, 21 December
                                    2006, 21 March 2007, 21 June 2007, 21 August
                                    2007  and  21 September 2007, subject to ad-
                                    justment  in  accordance  with the  Business
                                    Day Convention specified below.

Reset Dates:                        First day of each Calculation Period.

Business Day Convention:            Modified Following

Relationship Between Parties
----------------------------
Each party will be deemed to  represent  to the other party on the date on which
it enters  into this  Transaction  that (in the  absence of a written  Agreement
between the parties  which  expressly  imposes  affirmative  obligations  to the
contrary for this Transaction): -

(a) Non-Reliance. Each party is acting for its own account, and has made its own
independent  decisions to enter into this  Transaction and this such Transaction
is  appropriate  or proper for it based upon its own  judgement  and upon advice
from such advisers as it has deemed necessary.  Each party is not relying on any
communication  (written or oral) of the other party as investment advice or as a
recommendation  to  enter  into  this  Transaction;  it  being  understood  that
information  and  explanation  relating  to the  terms  and  conditions  of this
Transaction  shall not be considered  investment  advice or a recommendation  to
enter into this  Transaction.  No communication  (written or oral) received from
the other  party  shall he  deemed to be an  assurance  or  guarantee  as to the
expected results of this Transaction.

(b) Assessment and Understanding.  Each party is capable of assessing the merits
of and  understands  (on its own  behalf  or  through  independent  professional
advice), and accepts, the terms, conditions and risks of this Transaction.  Each
party is also capable of assuming and assumes, the risks of this Transaction.

(c) Status of the Parties.  Neither  party is acting as a fiduciary for or as an
adviser to the other in respect of this Transaction.

References  in this  clause to "a party"  shall,  in the case of UBS AG,  London
Branch and where the context so allows,  include  references to any affiliate of
UBS AG, London Branch

Account Details
Currency:                                 USD

--------------------------------------------------------------------------------
                                                                          Page 3
UBS AG Ref:       37014557
C/P Ref:      Please advise

<PAGE>

Correspondent Bank:                       UBS AG, STAMFORD BRANCH
Swift Address:                            UBSWUS33XXX
Favour:                                   UBS AG LONDON BRANCH
Swift Address:                            UBSWGB2LXXX
Account No:                               101-wa-140007-000
Further Credit To:
Swift Address:
Account No:

Offices
-------

The office of UBS AG for the Swap Transaction is London; and
the office of Counterparty for the Swap Transaction is OKLAHOMA CITY.

Contact Names at UBS AG
-----------------------

Rate Fixings:            Trade Processing: (44) 207 568 9461

Pre Value Payments:      Pre Value Payment Investigations:  (44) 207 568 2665

Post Value Payments:     Post Value Payment Investigations:  (44) 20 7567 8999

Confirmation Queries:    Confirmation Control:  (44) 207 567 2749

ISDA Documentation:      Credit Risk Management:  (44) 207 568 9645

Swift:                   UBSWGB2L

Fax:                     (44) 207 567 2685/2990

Address:                 UBS AG
                         100 Liverpool Street
                         London EC2M 2RII

Please confirm that the foregoing  correctly sets forth the terms and conditions
of our agreement by executing a copy of this Confirmation and returning it to us
or by sending to us a letter or facsimile  substantially similar to this letter,
which letter or facsimile  sets forth the material  terms of the  Transaction to
which this  Confirmation  relates and indicates your agreement to those terms or
by sending to us a return letter or facsimile in the form attached.

Yours faithfully
For and on Behalf of
UBS AG, London Branch

By:                                          By:

--------------------------------------------------------------------------------
                                                                          Page 4
UBS AG Ref:       37014557
C/P Ref:      Please advise

<PAGE>

         /s/ Michael Armcr                            /s/ Jonathan Moss

Name :   Michael Armcr                       Name:    Jonathan Moss
Title:   Associate Director                  Title:   Director

Acknowledged  and agreed by QUEST  CHEROKEE  LLC as of the Trade Date  specified
above.

By:      /s/ David Grose                     By:

Name:    David Grose                         Name:
Title    CFO                                 Title:

UBS AG London Branch, 1 Finsbury Avenue, London, EC2M 2PP. UBS AG is a member of
the London Stock  Exchange and is regulated in the UK by the Financial  Services
Authority.  Representatives  of UBS Limited  introduce  trades to UBS AG via UBS
Limited.

--------------------------------------------------------------------------------
                                                                          Page 5
UBS AG Ref:       37014557
C/P Ref:      Please adviseDate:                             2l September 2004

To:                               Quest Cherokee, LLC
                                  ("Counterparty")

Attn:                             DAVID GROSE

Fax No:                           0014054881156

From:                             UBS AG, LONDON BRANCH ("UBS AG")

Subject:                          Rate Swap Transaction
                                  UBS AG Ref: 37014599 (the "Transaction")
                                  Counterparty Ref: Please Advise

Dear Sirs,

The purpose of this  communication is to confirm the terms and conditions of the
Transaction  entered into  between us on the Trade Date  specified  below.  This
Confirmation constitutes a "Confirmation" as referred to in the Master Agreement
or Agreement specified below.

The  definitions  contained  in the 2000 ISDA  Definitions  as  published by the
International  Swaps and Derivatives  Association,  Inc., are incorporated  into
this  Confirmation.  In  the  event  of  any  inconsistency  between  any of the
definitions listed above and this Confirmation, this Confirmation will govern.

If you and we are parties to a master  agreement  that governs  transactions  of
this type (whether in the form of the ISDA Master Agreement (Multicurrency-Cross
Border)(the  "ISDA  Form") or any other form (a "Master  Agreement"),  then this
Confirmation  will  supplement,  form a part of, and be  subject to that  Master
Agreement.  If you and we are not parties to such a Master  Agreement,  then you
and we agree to use all reasonable  efforts  promptly to negotiate,  execute and
deliver an agreement in the form of the ISDA Form,  with such  modifications  as
you and we will in good faith agree. Upon the execution by you and us of such an
agreement,  this Confirmation will supplement,  form a part of and be subject to
and governed by that agreement,  except as expressly  modified  below.  Until we
execute and deliver that agreement,  this Confirmation,  together with all other
documents  referring  to  the  ISDA  Form  (each  a  "Confirmation")  confirming
transactions  (each a  "Transaction")  entered into between us  (notwithstanding
anything to the contrary in a confirmation),  shall supplement,  form a part of,
and be  subject  to an  agreement  in the  form  of the  ISDA  Form as if we had
executed an  agreement  in such form (but  without any  Schedule  except for the
election  of the laws of England as the  Governing  Law and U.S.  Dollars as the
Termination  Currency)  on the Trade  Date of the first  Transaction  between us
(hereinafter the  "Agreement").  In the event of any  inconsistency  between the
provisions of any such Agreement and this  Confirmation,  this Confirmation will
prevail for the purposes of this Transaction.

The terms of the particular  Rate Swap  Transaction  to which this  Confirmation
relates are as follows:

General Terms
-------------

Trade Date:                       21 September 2004

Effective Date:                   21 March 2005

Termination Date:                 21  March  2006,  subject  to  adjustment  in
                                  accordance   with  the   Modified   Following
                                  Business Day Convention.

Calculation Agent:                UBS  AG,  unless   otherwise  stated  in  the
                                  Schedule to the Master Agreement

------------------------------------------------------------------------------
UBS AG Ref: 37014599                                                Page - 1 -

<PAGE>

Broker:                                  None

Fixed Amounts
-------------

Fixed Rate Payer:                        Counterparty

Fixed Rate Payer Calculation Amount:     As described in the Amortising Schedule
                                         below
Amount:

--------------------------------------------------------------------------------
Period from (and including)  Period to (but excluding)  Calculation Amount
--------------------------------------------------------------------------------
Effective Date               21 June 2005               USD 58,250,000.00

21 June 2005                 21 September 2005          USD 57,025,000.00

21 September 2005            21 December 2005           USD 55,800,000.00

21 December 2005             Termination Date           USD 53,875,000.00
--------------------------------------------------------------------------------

The dates in the above schedule with the exception of the Effective Date will be
subject to  adjustment in accordance  with the Modified  Following  Business Day
Convention.

Fixed Rate:                     2.795 percent per annum

Fixed Rate Day Count Fraction:  Actual/360

Fixed Rate Payer Payment Dates: 21  June  2005 , 21  September 2005 , 21  Decem-
                                ber 2005  and 21 March 2006 from and  including
                                21 June 2005, up to and including  the  Termina-
                                tion Date ,  subject to adjustment in accordance
                                with  the  Business Day Convention specified im-
                                mediately below

Business Day Convention:        Modified Following

Business Days:                  New York and London

Floating Amounts
----------------

Floating Rate Payer:            UBS AG

Floating Rate Payer
Calculation Amount:             As described in the Amortising Schedule below

--------------------------------------------------------------------------------
Period from (and including)  Period to (but excluding)  Calculation Amount
--------------------------------------------------------------------------------
Effective Date               21 June 2005               USD 58,250,000.00

21 June 2005                 21 September 2005          USD 57,025,000.00

21 September 2005            21 December 2005           USD 55,800,000.00

21 December 2005             Termination Date           USD 53,875,000.00
--------------------------------------------------------------------------------

The dates in the above schedule with the exception of the Effective Date will be
subject to  adjustment in accordance  with the Modified  Following  Business Day
Convention.

------------------------------------------------------------------------------
UBS AG Ref: 37014599                                                Page - 2 -

<PAGE>

Floating Rate Option:                 USD-LIBOR-BBA

Designated Maturity:                  3 months

Floating Rate Day Count Fraction:     Actual/360

Spread:                               None

Floating                              Rate   Payer Payment Dates: 21 June 2005 ,
                                      21 September  2005 , 21  December 2005 and
                                      21 March 2006 from and  including  21 June
                                      2005, up to and including the  Termination
                                      Date , subject to adjustment in accordance
                                      with the Business Day Convention specified
                                      immediately below

Business Day Convention:              Modified Following

Reset Dates:                          First day of each Calculation Period

Compounding:                          Inapplicable

Business Days:                        New York and London

Relationship Between Parties
----------------------------

Each party will he deemed to  represent  to the other party on the date on which
it enters  into this  Transaction  that (in the  absence of a written  Agreement
between the parties  which  expressly  imposes  affirmative  obligations  to the
contrary for this Transaction): -

(a) Non-Reliance. Each party is acting for its own account, and has made its own
independent  decisions to enter into this  Transaction and this such Transaction
is  appropriate  or proper for it based upon its own  judgement  and upon advice
from such advisers as it has deemed necessary.  Each party is not relying on any
communication  (written or oral) of the other party as investment advice or as a
recommendation  to  enter  into  this  Transaction;  it  being  understood  that
information  and  explanation  relating  to the  terms  and  conditions  of this
Transaction  shall not be considered  investment  advice or a recommendation  to
enter into this  Transaction.  No communication  (written or oral) received from
the other  party  shall be  deemed to be an  assurance  or  guarantee  as to the
expected results of this Transaction.

(b) Assessment and Understanding.  Each party is capable of assessing the merits
of and  understands  (on its own  behalf  or  through  independent  professional
advice), and accepts, the terms, conditions and risks of this Transaction.  Each
party is also capable of assuming and assumes, the risks of this Transaction.

(c) Status of the Parties.  Neither  party is acting as a fiduciary for or as an
adviser to the other in respect of this Transaction.

References  in this  clause to "a party"  shall,  in the case of UBS AG,  London
Branch and where the context so allows,  include  references to any affiliate of
UBS AG, London Branch.

Account Details
---------------

Currency:                    USD
Correspondent Bank:          UBS AG, STAMFORD
Swift Address:               UBSWUS33XXX
Favour:                      UBS AG LONDON BRANCH
Swift Address:               UBSWGB2LXXX
Account No:                  101-WA-140007-000
Further Credit To:

------------------------------------------------------------------------------
UBS AG Ref: 37014599                                                Page - 3 -

<PAGE>

Swift Address:
Account No:

Offices
-------
(a)    The office of UBS AG for the Swap Transaction is LONDON and
(b)    The office of the Counterparty for the Swap Transaction is OKLAHOMA CITY,
       OK.

Contact Names at
----------------
UBS AG
------
Pre Value Payments:      Pre Value Payment Investigations:   (44) 20 7568 2665
Post Value Payments:     Post Value Payment Investigations:  (44) 20 7567 8999
Confirmation Queries:    Confirmation Control:               (44) 20 7567 2677
ISDA Documentation:      Credit Risk Management:             (44) 20 7567 4557
Swift:                   UBSWGB2L
Fax:                     (44) 20 7567 2685 or 2990
Address:                 100 Liverpool Street, London, EC2M 2RH
                         UBS AG

------------------------------------------------------------------------------
UBS AG Ref: 37014599                                                Page - 4 -

<PAGE>

Please confirm that the foregoing  correctly sets forth the terms and conditions
of our agreement by executing a copy of this Confirmation and returning it to us
or by sending to us a letter or facsimile  substantially similar to this letter,
which letter or facsimile  sets forth the material  terms of the  Transaction to
which this  Confirmation  relates and indicates your agreement to those terms or
by sending to us a return letter or facsimile in the form attached.

Yours Faithfully
For and on behalf of
UBS AG LONDON BRANCH

By:                                  By:

       /s/ Scan Taylor                      /s/ Martin Perkins

Name:  Scan Taylor                   Name:  Martin Perkins
Title: Director                      Title: Director

Acknowledged  and agreed by Quest  Cherokee,  LLC as of the Trade Date specified
above:

By:    /s/ David Grose               By:
Name:  David Grose                   Name:
Title: CFO                           Title:

UBS AG London Branch, 1 Finsbury Avenue, London EC2M 2PP
UBS AG is a member of the London Stock Exchange and is  regulated in the  UK  by
the Financial Services Authority
Representatives of UBS Limited introduce trades to UBS AG via UBS Limited

------------------------------------------------------------------------------
UBS AG Ref: 37014599                                                Page - 5 -

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