| 1.   | Interpretation |
|----------------|----------------|

| (a)   | Definitions. The terms      defined in Section 16 and in the Schedule will have the meanings specified      therein for the purpose of this Master  Agreement. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (b)   | Inconsistency. In the      event of any inconsistency between the provisions of the Schedule and the      other provisions of this Master Agreement, the Schedule will prevail. The      Schedule is incorporated into this Master Agreement by reference as if      fully stated herein. In the event of any inconsistency between the      provisions of any Confirmation and this Agreement (including the      Schedule), such Confirmation will prevail for the purpose of the relevant      Transaction. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (c)   | Single Agreement. All      Transactions are entered into in reliance on the fact that this Agreement      (including the Schedule) and all Confirmations form a single agreement      between the parties (collectively referred to as this “Agreement”). Unless      and until this Agreement is terminated according to the terms hereof, all      Transactions entered into among the parties are subject to the terms      hereof, except by the parties express written agreement with respect to      each Transaction that shall not be governed by this    Agreement. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.   | Representations |
|----------------|-----------------|

| (i)   | Status. It is      duly organized and validly existing under the laws of the jurisdiction of      its organization or incorporation and, if relevant under such laws, in      good standing; |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

|   | (ii) | Powers. It (1)      has the power to execute and deliver this Agreement and any other      documentation relating to this Agreement to which it is a party, (2) to      deliver this Agreement and any other documentation relating to this      Agreement that it is required by this Agreement to deliver, (3) to perform      its obligations under this Agreement, and (4) has taken all necessary      action to authorize such execution, delivery and    performance; |
|--------|------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (iii) | No Violation or      Conflict. Such execution, delivery and performance do not violate      or conflict with any applicable law, any provision of its constitutional      documents, any order or judgment of any court or other applicable agency      of government, or any of its assets or any contractual restriction binding      on or affecting it or any of itsassets; |
|--------|-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (iv) | Consents. All      governmental and other consents that are required to have been obtained by      it with respect to this Agreement have been obtained and are in full force      and effect and all conditions of any such consents have been      fulfilled; |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (v) | Obligations      Binding. Its obligations under this Agreement constitute its legal,      valid and binding obligations, enforceable in accordance with their      respective terms (subject to applicable bankruptcy, reorganization,      insolvency, moratorium or similar laws affecting creditors’ rights      generally and subject, as to enforceability, to equitable principles of      general application – regardless of whether enforcement is sought in a      proceeding in equity or at law); |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (vi)   | United States      Person.  It is a United States person (as such term is      defined in Section 7701 of the Internal Revenue  Code); |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------|

| (vii)   | No Withholding      Tax.  During the term of this Agreement, it will not be      doing business in any jurisdiction that imposes any withholding tax or      similar levy on any payment made or received by it under this      Agreement; |
|-------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (viii)   | Eligible Swap      Participant.  (1) It constitutes an “eligible swap      participant” as such term is defined in 17 C.F.R. Section 35.1(b)(2), and      (2) this Agreement and any Transaction entered into hereunder constitutes      a “swap agreement” within the meaning of 17 C.F.R. Section      35.1(b)(1); |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (ix)   | Line of      Business.  (1) It is entering into this Agreement in      conjunction with its line of business (including financial intermediation      services) or the financing of its business, and (2) solely with respect to      options, it is a producer, processor, commercial user of, or merchant      handling, the commodity subject to a Transaction or the products or      byproducts thereof, and it has entered or will enter into Transactions      solely for purposes related to its business as such;  and |
|------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (b)   | Absence of Certain      Events.  No Event of Default or Potential Event of      Default or, to its knowledge, Termination Event with respect to it has      occurred and is continuing and no such event or circumstance will occur as      a result of its entering into or performing its obligations under this      Agreement. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (c)   | Absence of      Litigation.  There is not pending, nor to its knowledge      threatened against it or any of its Affiliates, any action, suit or      proceeding at law or in equity or before any court, tribunal, governmental      body, agency or official or any arbitrator that is likely to affect the      legality, validity or enforceability against it of this Agreement or its      ability to perform its obligations under this  Agreement. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (d)   | Accuracy of Specified      Information.  All applicable information that is      furnished in writing by or on behalf of it to the other party and is      identified for the purpose of this Section 2(d) in the Schedule is, as of      the date of the information, true, accurate and complete in every material      respect. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.   | Term      of this Agreement |
|----------------|-----------------------------|

----

| a.   | Transactions.Formation.  Should      the parties come to an understanding regarding a particular Transaction,      the Transaction will be formed and effectuated by either (1) a written      paper-based letter executed by the parties (including by either facsimile      and/or original counterparts) substantially in the form of Exhibit A      attached hereto and incorporated herein by reference or a different form      agreed to by the parties (the “Confirmation Letter”), (2) by an exchange      of e-mails (which together shall constitute the Confirming Electronic      Message) between the parties with substantially the same content as set      out on Exhibit A, and such e-mail must conform exactly as to each term      marked on Exhibit “A” with an * (the Confirmation Letter and/or Confirming      Electronic Message may also be interchangeably or collectively referred to      as a “Confirmation”).  Each party may stipulate by prior notice      (oral or written) to the other party that any particular contemplated      Transaction may be effectuated and formed only by means of procedure (1)      above.  The parties shall be legally bound by each Transaction      from the time they agree to its terms in accordance with this Section 4(a)      and acknowledge that each party will rely thereon in doing business      related to the Transaction.  The Confirming Electronic Message      is adopted by the parties as means by which a Transaction is reduced to      tangible form, and the parties to a Transaction are identified and      authenticate a Transaction.  Any Transaction formed and      effectuated pursuant to the foregoing shall be considered a “writing” or      “in writing” and to have been “signed” and any Confirming Electronic      Message shall be deemed to constitute an “original” document evidencing      the Transaction.  Each party consents to the recording of its      employees’ telephone conversations without any further    notice. |
|----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b.   | Obligations. |
|----------------|--------------|

| (i)   | Payment      Obligations. |
|-----------------|---------------------------|

| (1)   | Each      party shall make each payment as specified for such party in each      Confirmation, subject to the other provisions of this      Agreement. |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------|

| (2)   | Payments      under this Agreement will be made on the due date for value by wire or      other electronic transfer into the account specified in the relevant      Confirmation or otherwise pursuant to this Agreement, in freely      transferable funds and in the manner customary for payments in United      States dollars. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (3)   | Each      obligation of each party under Section 4(b)(i)(1) is subject to (A) the      condition precedent that no Event of Default or Potential Event of Default      with respect to the other party has occurred and is continuing, (B) the      condition precedent that no Early Termination Date in respect of the      relevant Transaction has occurred orbeen |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (4)   | effectively      designated, and (C) each other applicable condition precedent specified in      this Agreement. |
|-----------------|------------------------------------------------------------------------------------------------------------------|

| (ii)   | Change of      Account.  Either party may change its account for      receiving a payment by giving written notice to the other party at least      five (5) Business Days prior to the scheduled date for the payment to      which such change applies unless such other party gives timely notice of a      reasonable objection to suchchange. |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (iii)   | Netting of      Payments.  If on any payment date amounts would otherwise      be payable in respect of the same Transaction by each party to the other,      then, on such date, each party’s obligation to make payment of any such      amount will be automatically satisfied and discharged, and if the      aggregate amount that would otherwise have been payable by one party      exceeds the aggregate amount that would otherwise have been payable by the      other party, such party’s payment obligation shall be replaced by an      obligation to pay the other party the excess of the larger aggregate      amount over the smaller aggregate amount.  The parties may elect      in respect of two or more Transactions that a net amount will be      determined in respect of all amounts payable on the same date in respect      of such Transactions, regardless of whether such amounts are payable in      respect of the same Transaction.  The election may be made in      the Schedule or a Confirmation by specifying that this subparagraph will      specifically apply to multiple Transactions identified as being subject to      such election together with a starting date.  This election may      be made separately for different groups of  Transactions. |
|-------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (iv)   | Default Interest;      Other Amounts.  Prior to the occurrence or effective      designation of an Early Termination Date in respect of the relevant      Transaction, a party that defaults in the performance of any payment      obligation will, to the extent permitted by law be required to pay      interest (before as well as on and after judgment) on the overdue amount      to the other party for the period from (and including) the original due      date for payment to (but excluding) the date of actual payment, at the      Interest Rate.  Such interest will be calculated on the basis of      daily compounding and the actual number of days  elapsed. |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5.   | Further      Assurances |
|----------------|-------------------------|

| (a)   | Furnish Specified      Information. It will deliver to the other party any forms,      documents or certificates specified in the Schedule or any Confirmation      by |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (b)   | the      date specified in the Schedule or such Confirmation, or if none is      specified, as soon as reasonablypracticable. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------|

| (c)   | Maintain      Authorizations. It will use all reasonable efforts to maintain in      full force and effect all consents of any governmental or other authority      that are required to be obtained by it with respect to this Agreement and      will use all reasonable efforts to obtain any that may become necessary in      the future. |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (d)   | Comply with Laws. It      will in all material respects with each applicable law and order to which      it may be subject if failure so to comply would materially impair its      ability to perform its obligations under this  Agreement. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 6.   | Definition      of Events of Default |
|----------------|--------------------------------------|

| (a)   | Failure to Pay. Failure      by a party to make, when due, any payment under this Agreement required to      be made by it, if such failure is not remedied within three (3) Business      Days after written notice of such failure is given to such      party; |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (b)   | Breach of Agreement.      Failure by a party to comply with or perform any agreement or obligation      (other than an obligation to make any payment under this Agreement) to be      complied with or performed by such party in accordance with this Agreement      if such failure is not remedied on or before the thirtieth (30th)      day after written notice of such failure is given to such      party; |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (c)   | Misrepresentation. A      representation made or repeated or deemed to have been made or repeated by      a party is incorrect or misleading in any material respect when made or      repeated or deemed to have been made or  repeated; |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (d)   | Default under      Transaction. A party, or any applicable Specified Entity of such      party (i) defaults under a Transaction and, after giving effect to any      applicable notice requirement or grace period, there occurs a liquidation      of, an acceleration of obligations under, or an early termination of, that      Transaction, (ii) defaults, after giving effect to any applicable notice      requirement or grace period, in making any payment on the last payment      date of, or any payment on early termination of, a Transaction, or (iii)      disaffirms, disclaims, repudiates, or rejects, in whole or in part, a      Transaction (or such action is taken by any person or entity appointed or      empowered to operate it or act on itsbehalf); |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (e)   | Bankruptcy. A party or      any applicable Specified Entity of such party; (i) is dissolved (other      than pursuant to a consolidation, amalgamation or  merger); |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (f)   | (ii)      becomes insolvent or is unable to pay its debts or fails or admits in      writing its inability generally to pay its debts as they become due; (iii)      makes a general assignment, arrangement, or composition with or for the      benefit of its creditors; (iv) institutes or has instituted against it a      proceeding seeking a judgment of insolvency or bankruptcy or any other      relief under any proceeding seeking a judgment of insolvency or bankruptcy      or any other relief under any bankruptcy or insolvency law or other      similar law affecting creditors’ rights,  or a petition is      presented for its winding-up or liquidation, and in the case of any such      proceeding or petition instituted or presented against it, such proceeding      or petition (1) results in a judgment of insolvency or bankruptcy or the      entry of an order for relief or the making of an order for its winding-up      or liquidation or (2) is not dismissed, discharged, stayed, or restrained      in each case within thirty (30) days of the institution or presentation      thereof; (v) passes a resolution for its winding-up, official management,      or liquidation (other than pursuant to a consolidation, amalgamation, or      merger); (vi) seeks or becomes subject to the appointment of an      administrator, provisional liquidator, conservator, receiver, trustee,      custodian, or other similar official for it or for all or substantially      all of its assets; (vii) has a secured party take possession of all or      substantially all of its assets or has a distress, execution, attachment,      sequestration, or other legal process levied, enforced, or sued on or      against all or substantially all of its assets and such secured party      maintains possession, or any such process is not dismissed, discharged,      stayed, or restrained, in each case within thirty (30) days thereafter;      (viii) causes or is subject to any event with respect to it which, under      the applicable laws of any jurisdiction, has an analogous effect to any of      the events specified in clauses (i) through (vii) (inclusive); or (ix)      takes any action in furtherance of, or indicating its consent to, approval      of, or acquiescence in, any of the foregoing  acts; |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (g)   | Merger Without      Assumption. A party consolidates or amalgamates with, or merges      with or into, or transfers all or substantially all of its assets to      another entity, and at the time of such consolidation, amalgamation,      merger, or transfer the resulting, surviving, or transferee entity fails      to assume all of the obligations of such party under this Agreement by      operation of law or pursuant to an agreement reasonably satisfactory to      the other party to this Agreement; |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (h)   | Credit Event upon      Merger. A party or any applicable Specified Entity of such party      consolidates or amalgamates with, or merges with or into, or transfers all      or substantially all of its assets to another entity and such action does      not constitute an event described in Section 6(h) but the creditworthiness      of the resulting, surviving, or transferee entity is materially weaker      than that of such party, or such Specified Entity of such party, as the      case may be, immediately prior to suchaction. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 7.   | Definition      of Termination Events |
|----------------|---------------------------------------|

----

| 8.   |   |
|----------------|--------|

| (a)   | Illegality. Due to the      adoption of, or any change in, any applicable law after the date on which      a Transaction is entered into, or due to the promulgation of, or any      change in, the interpretation by any court, tribunal or regulatory      authority with competent jurisdiction of any applicable law after such      date, it becomes unlawful (other than as a result of a breach by such      party of Section 5(b)) for such party (which will be the “Affected Party”)      to perform any absolute or contingent obligation to make a payment or to      receive a payment in respect of such Transaction or to comply with any      other material provision of this Agreement relating to such Transaction;      and |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (b)   | Tax Law Changes. Due to      the adoption of, or any change in, any applicable tax law after the date      on which a Transaction is entered into, or due to the promulgation of, or      any change in, the interpretation by any court, tribunal or regulatory      authority with competent jurisdiction of any applicable tax law after such      date, such tax law change or interpretation has a material effect on the      amount of tax owed on anyTransaction. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.   | Remedies      upon an Event of Default or TerminationEvent |
|----------------|------------------------------------------------------------|

| (a)   | Right to Terminate upon an      Event of Default or Termination Event. If an Event of Default shall      have occurred and shall be continuing or if a Termination Event shall have      occurred, the non-defaulting party with respect to an Event of Default of      the terminating party with respect to a Termination Event (interchangeably      referred to as a “Non-Defaulting Party”) may, in its sole discretion, by      no more than twenty (20) days written notice to the defaulting party or      terminated party (interchangeably referred to as a “Defaulting Party”)      designate a day no earlier than the day such notice is effective as an      early termination date (“Early Termination Date”) with respect to some or      all Transactions then in effect under this  Agreement. |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (b)   | Effect of Designation of an      Early Termination Date. On the Early Termination Date, all      obligations under all Transactions so designated under Section 8(a) shall      be terminated, except as providedbelow. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (c)   | Calculation of Termination      Payment. If an Early Termination Date has been designated, the      Non-Defaulting Party shall in good faith calculate its Gains or Losses and      Costs resulting from the termination of the parties’ obligations under all      Transactions designated under Section 8(a). The Non-Defaulting Party shall      aggregate such Gains, Losses and Costs with respect to all Transactions      designated under Section 8(a) into a singlenet |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (d)   | amount      and notify the Defaulting Party of the net amount owed or owing (the      “Termination Payment”). |
|-----------------|---------------------------------------------------------------------------------------------------------------------------|

| (e)   | Payment of the      Termination Payment. If the Termination Payment is negative (i.e. the      Non-Defaulting Party’s aggregate Losses and Costs exceed its aggregate      Gains), the Defaulting Party shall, within five (5) Business Days of      receipt of the notice given in Section 8(c), pay the Termination Payment      to the Non-Defaulting Party, which amount shall bear interest at the      Interest Rate from the Early Termination Date until paid. If the      Termination Payment is positive (i.e. the Non-Defaulting Party’s aggregate      Gains exceed its aggregate Losses and Costs, if any, resulting from an      Event of Default or Termination Event, subject to the right of set-off in      Section 9), the Non-Defaulting Party shall pay the Termination Payment,      subject to the right of set-off in Section 9, to the Defaulting Party      within five (5) Business Days of the Defaulting Party’s receipt of the      notice given in Section 8(c), which amount shall bear interest at the      Interest Rate if not paid within such five (5) Business    Days. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (f)   | Direct Damages Only.      NO PARTY SHALL BE      REQUIRED TO PAY SPECIAL, EXEMPLARY, PUNITIVE, INCIDENTAL, CONSEQUENTIAL,      LOST PROFITS, OR INDIRECT DAMAGES (WHETHER OR NOT ARISING FROM A PARTY’S      OWN SOLE, JOINT, CONCURRENT, CONTRIBUTORY, OR COMPARATIVE NEGLIGENCE      (WHETHER GROSS OR SIMPLE, ACTIVE OR PASSIVE)) TO THE OTHER PARTY, EXCEPT      TO THE EXTENT THAT THE PAYMENTS REQUIRED TO BE MADE PURSUANT TO THIS      AGREEMENT ARE DEEMED TO BE SUCH DAMAGES. IF AND TO THE EXTENT ANY PAYMENT      MADE PURSUANT TO THIS AGREEMENT IS DEEMED TO CONSTITUTE LIQUIDATED      DAMAGES, THE PARTIES ACKNOWLEDGE AND AGREE THAT DAMAGES ARE DIFFICULT OR      IMPOSSIBLE TO DETERMINE AND THAT SUCH PAYMENT CONSTITUTES A REASONABLE      APPROXIMATION OF THE AMOUNT OF SUCH DAMAGES, AND IS NOT A PENALTY. THIS      SECTION 8(e) SHALL SURVIVE ANY TERMINATION OF THIS      AGREEMENT. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (g)   | Recovery of Expenses. A      Defaulting Party will, on demand, indemnify and hold harmless the      Non-Defaulting party from and against all reasonably out-of-pocket      expenses, including, without limitation, reasonable attorneys’ and other      legal fees and expenses, incurred by the Non-Defaulting Party by reason of      the enforcement and protection of its rights under this Agreement or by      reason of the early termination of any Transaction, including, but not      limited to, costs of collection of the Termination Payment or any other      payment owed to the Non-Defaulting Party under this    Agreement. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| 10.   | Market      Disruption |
|-----------------|------------------------|

| 11.   | Transfer |
|-----------------|----------|

| (a)   | a      party may make such a transfer of this Agreement pursuant to a      consolidation or amalgamation with, or merger with or into, or transfer of      all or substantially all of its assets to, another entity (by without      prejudice to any other right or remedy under this Agreement);      and |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| 12.   | DECEPTIVE      TRADE PRACTICES |
|-----------------|--------------------------------|

| 13.   | Arbitration |
|-----------------|-------------|

| 14.   | Confidentiality |
|-----------------|-----------------|

----

| 15.   | Miscellaneous |
|-----------------|---------------|

| (a)   | Entire Agreement. This      Agreement constitutes the entire agreement and understanding of the      parties with respect to its subject matter and supersedes all oral      communication and prior writings with respect  thereto. |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (b)   | Amendments and Waivers.      No amendment, modification, or waiver in respect of this Agreement      will be effective unless in writing (including a writing evidenced by a      facsimile transmission) and executed by each of the parties or confirmed      by an exchange of telexes, electronic messages, or  e-mail. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (c)   | Survival of      Obligations. Without prejudice to Section 4(b)(i)(3), the      obligations of the parties under this Agreement will survive the      termination of any Transaction. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (d)   | Remedies Cumulative.      Except as provided in this Agreement, the rights, powers, remedies and      privileges provided in this Agreement are cumulative and not exclusive of      any rights, powers, remedies, and privileges provided by    law. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (e)   | Counterparts. This      Agreement (and each amendment, modification, and waiver in respect of it)      may be executed and delivered in counterparts (including by facsimile      transmission), all of which when taken together shall constitute an      original. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (f)   | No Waiver of Rights. A      failure or delay in exercising any right, power, or privilege in respect      of this Agreement will not be presumed to operate as a waiver, and a      single or partial exercise of any right, power, or privilege will not be      presumed to preclude any subsequent or further exercise of      that |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (g)   | right,      power, or privilege or the exercise of any other right, power, or      privilege. |
|-----------------|-----------------------------------------------------------------------------------------------|

| (h)   | Headings. The headings      used in this Agreement are for convenience of reference only and are not      to affect the construction of or to be taken into consideration in      interpreting this Agreement. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (i)   |  Notices. |
|-----------------|----------------|

| i.   | Effectiveness.      Any notice or other communication in respect of this Agreement may be      given in any manner set forth below (except that a notice or other      communication under Section 8 or Section 13 may not be given by facsimile      transmission or email) to the address or number or in accordance with the      electronic messaging system or e-mail details provided (see the Schedule)      and will be deemed effective asindicated: |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 1.   | if      in writing and delivered in person or by courier, on the date it is      delivered; |
|----------------|---------------------------------------------------------------------------------------------|

| 2.   | if      sent by telex, on the date the recipient’s answerback is      received; |
|----------------|---------------------------------------------------------------------------------------|

| 3.   | if      sent by facsimile transmission, on the date that transmission is received      by a responsible employee of the recipient in legible  form; |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.   | if      sent by certified or registered mail or the equivalent (return receipt      requested), on the date that mail is delivered or its delivery is      attempted; or |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5.   | if      sent by electronic messaging system or e-mail, on the date such electronic      message or e-mail is received, |
|----------------|------------------------------------------------------------------------------------------------------------------------|

| ii.   | Change of      Address. Either party may by notice to the other change the address      or facsimile number, or electronic messaging system or e-mail details at      which notices or other communications are to be given to    it. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (j)   | Governing Law; Forum      Selection. THIS      AGREEMENT WILL BE GOVEREND BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF      THE STATE OF TEXAS WITHOUT REGARD TO THE CONFLICT OF LAWS PRINCIPLES OF      THE STATE OF TEXAS WHICH WOULD DIRECT THE APPLICATION OF      THE |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

| (k)   | LAWS      OF ANOTHER JURISDICTION OTHER THAN TEXAS. TO THE EXTENT THAT SECTION 13      HEREOF IS DETERMINED TO BE PARTIALLY OR WHOLLY INVALID, THEN THE PARTIES      AGREE THAT ANY DISPUTE INITIATED BY EITHER PARTY RELATED TO OR ARISING      FROM THIS AGREEMENT OR ANY TRANSACTION, INCLUDING ANY DISPUTE RELATED TO      THE CONFIDENTIALITY PROVISIONS HEREOF, SHALL BE BROUGHT ONLY IN A FEDERAL      OR STATE COURT LOCATED IN DALLAS COUNTY, TEXAS,  USA. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 16.   | Definitions |
|-----------------|-------------|

----

----

----

| *Determination      Period(s): | Calendar      monthly periods, with the first Determination Period commencing on and      including the Swap Start Date, and the final Determination Period ending      on and including the Swap TerminationDate |
|--------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | *Fixed      Price Payor: |
|--------|--------------------------|

|   | *Floating      Price Payor: |
|--------|-----------------------------|

| *Fixed      Price: | See      Addendum |
|--------------------|-------------------|

|   | *Floating      Price: |
|--------|-----------------------|

| *Floating      Price Source: | Inside      FERC First of the Month Posting |
|------------------------------|---------------------------------------------|

|   | Alternative      Floating Price Source: |
|--------|-----------------------------------------|

| *Payment      Date(s): | The      fifth (5th)      Business Day following the date on which the Cash Settlement Amount is      determinable for each relevant Determination  Period |
|------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Cash      Settlement Amount: | For      each Determination Period, a U.S. Dollar amount, payable by either Fixed      Price Payor or Floating Price Payor asfollows: |
|------------------------------|---------------------------------------------------------------------------------------------------------------------------------------|

|   | If      the Fixed Price is greater than the Floating Price, Fixed Price Payor      shall pay Floating Price Payor for the relevant Determination Period:      (Notional Quantity of relevant Determining Period) x (Fixed Price –      Floating Price). |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | If      the Floating Price is greater than the Fixed Price, Floating Price Payor      shall pay Fixed Price Payor forthe |
|--------|--------------------------------------------------------------------------------------------------------------------------|

----

|   | relevant      Determination Period: (Notional Quantity of relevant Determination Period)      x (Floating Price – Fixed Price). |
|--------|---------------------------------------------------------------------------------------------------------------------------------------|

|   | If      the Fixed Price equals the Floating Price, no Cash Settlement Amount is      owed by either Fixed Price Payor or Floating Price  Payor. |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------|

|   | Who      Calculates the Cash |
|--------|------------------------------|

| Settlement      Amount: | Floating      Price Payor will calculate in monthly intervals the Cash Settlement Amount      within one (1) Business Day of the publication of the Floating Price and      will provide written notice of such calculation to Fixed Price Payor. For      the purposes of the calculation of the Floating Price, all numbers shall      be rounded to three (3) decimal places. If the fourth (4th)      decimal number is five (5) or greater, then the third (3rd)      decimal number shall be increased by one (1), and if the fourth (4th)      decimal number is less than five (5), then the third (3rd)      decimal number shall remain unchanged. If Fixed Price Payor disagrees with      the Cash Settlement Amount calculation made by Floating Price Payor, Fixed      Price Payor must give written notice to Floating Price Payor, Fixed Price      Payor must give written notice to Floating Price Payor within two (2)      Business Days of receipt of the Cash Settlement Amount calculation      provided by Floating Price Payor will be deemed correct in all respects.      If Fixed Price Payor serves written notice of its disagreement with the      calculation of the Cash Settlement Amount, such written notice must      contain an explanation of why Fixed Price Payor disagrees with the      calculation made by Floating Price Payor and an alternative calculation      made by Fixed Price Payor. If Floating Price Payor and Fixed Price Payor      are unable to agree on the calculation of the Cash Settlement Amount on or      before the Payment Date, the undisputed amount will be paid by the      responsible party and the disputed amount may be determined according to      the arbitration provisions of Section 13 of the Master Swap Agreement.      Notwithstanding anything herein to the contrary, the failure to pay the      full Cash Settlement Amount as calculated by the Floating Price Payor by      the Payment Date is an “Event of Default” as defined in Section 6(a) of      the Master Swap Agreement. |
|-------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Contractual      Currency: | U.S.      Dollars |
|----------------------------|-------------------|

----

|   | SCHEDULE |
|--------|----------|

|   | to      the |
|--------|-------------|

|   | Master      Swap Agreement |
|--------|----------------------------|

|   | Dated      as of May 1, 2006 |
|--------|------------------------------|

----

----