| 1)     | TERM:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
|   | Effective      Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Originally      May 1, 2002, as amended and restated effective April 1,    2008 |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
|   | Primary      Term End Date:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | April      30, 2013 |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Evergreen: | Yes     [      X ]              No      [    ]    If Yes,describe:After      the Primary Term End Date, this Agreement shall continue to be in effect      thereafter unless and until terminated by either MRT or Customer by      written notice or electronically via the Internet as permitted or required      by MRT, to the other delivered at least one (1) year prior to the date of      intended termination. |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
| 2)     | QUANTITIES:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |   |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
|   | Maximum      Daily Quantity (MDQ):  664,738 Dth/Day                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
| 3)     | RECEIPT      AND DELIVERY POINTS:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
|   | See      Exhibit A                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
| 4)     | RATE:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |   |
|   | Service      hereunder shall be provided pursuant to Rate Schedule      FTS.  Customer shall pay, or cause to be paid, to MRT each month      for all services provided hereunder the maximum applicable rate and any      other charges specified in MRT’s FERC Gas Tariff, Third Revised Volume No.      1, as on file and in effect from time to time (“Tariff”), for services      rendered hereunder, unless otherwise agreed (either in writing or      electronically via the Internet as required by MRT) by MRT and Customer in      an Exhibit B, or other format provided for in the Tariff, in effect during      the term of this Agreement, or in a capacity release  award. |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |   |
| 5)     | ADDRESSES:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |

|   | For Notices to      Customer:                         | For Bills to      Customer:                           |
|--------|-------------------------------------------------------|-------------------------------------------------------|
|   | Laclede      Gas Company                              | Laclede      Gas Company                              |
|   | Attn:  Steven      F. Mathews               | Attn:      Gas Accounting                             |
|   | 720      Olive Street                                 | 720      Olive Street, 13 Floor                       |
|   | St.      Louis, MO 63101                              | St.      Louis, MO 63101                              |
|   | Telephone:  (314)      516-8585             | Telephone:  (314)      516-8595             |
|   | Facsimile:    (314)      421-1979 | Facsimile:    (314)      241-2278 |
|   | E-Mail:  smathews@lacledegas.com            |                                                  |
|   |                                                  |                                                  |
|   | For Notices to      MRT:                              | For Payments to      MRT:                             |
|   | 1600      S. Brentwood Blvd., Suite 590               | P.O.      Box 203293                                  |
|   | St.      Louis, MO 63144                              | Houston,      TX 77216-3293                           |
|   | Facsimile:  (314)      991-7600             | Facsimile:  (318)      429-3133             |
|   |                                                  | (payment      detail – Shreveport)              |

|   | MRT Nominations (other      than electronic):       |                                   |
|--------|-----------------------------------------------------|----------------------------------------|
|   | Client      Services                                | For Wire Transfer      Payment to MRT: |
|   | Facsimile:  (318)      429-3298           | Mississippi      River Transmission    |
|   |                                                | Chase      Bank of Texas               |
|   | MRT      Pipeline Operations:                       | ABA      No. 113000609                 |
|   | System      Control Department                      | Account      No.                       |
|   | 1600      S. Brentwood Blvd., Suite 590             |                                   |
|   | St.      Louis, MO 63144                            |                                   |
|   | Telephone:      (314) 991-9900                      |                                   |
|   | E-Mail:  mrtconsole@centerpointenergy.com |                                   |

|   | IN      WITNESS WHEREOF, the parties have executed this Agreement as of the last      date shown below. |
|--------|---------------------------------------------------------------------------------------------------------|

| CENTERPOINT      ENERGY - MISSISSIPPI RIVER | LACLEDE      GAS COMPANY                           |
|---------------------------------------------|----------------------------------------------------|
|                                        | TRANSMISSION      CORPORATION                      |   |   |   |   |
|                                        |                                               |   |   |   |   |
|                                        |                                               |   |   |   |   |
| By:                                         | /s/      Robert Trost                              |   | By: | /s/      Kenneth J. Neises |   |
| Name                                        | Robert      Trost                                  |   | Name: | Kenneth      J. Neises |   |
| Title                                       | Division      Vice President – Marketing MRT |   | Title: | Executive      Vice President |   |
| Date:                                       | March      18, 2008                                |   | Date: | March      18, 2008 |   |
|                                        |                                               |   |   |   |   |

| 1)     | Upon      termination hereof for whatever reason, Customer agrees to stop delivering      gas to MRT for transportation hereunder.  In addition, upon      termination of this Agreement, Customer agrees that it will thereafter      make no further demand for service hereunder and MRT agrees that it will      make no further demand for the continuation of services or any payment      related thereto, other than payments which are due with respect to any      services previously provided.  Customer agrees to cooperate with      and assist MRT in obtaining whatever regulatory approvals and      authorizations, if any, are necessary or appropriate in view of such      termination and abandonment of service hereunder.                                                                                                                                                                                                                                                                |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 2)     | Termination      of this Agreement shall not relieve either party of any obligation that      might otherwise exist to correct any volume imbalance hereunder nor      relieve Customer of its obligation to pay any monies due hereunder to      MRT.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 3)     | In      accordance with the terms and conditions of Section 17 of the General      Terms and Conditions of MRT’s FERC Gas Tariff, Third Revised Volume No. 1      (General Terms and Conditions), if Customer fails to pay within thirty      (30) days after payment is due all of the amount of any bill for service      rendered by MRT hereunder, MRT, upon ten (10) days’ prior written notice      to Customer, may suspend further receipt and/or delivery of gas until such      past due amount is paid, or satisfactory credit arrangements have been      made in accordance with Section 5 of the General Terms and      Conditions.  If Customer fails to pay or make satisfactory      credit arrangements within such ten (10) day notice period, MRT, in      addition to any other remedy it may have hereunder, may, upon thirty (30)      days’ written notice to Customer, terminate this Agreement and cease      further receipt and/or delivery of gas on behalf of    Customer. |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 4)     | Service      hereunder shall be provided pursuant to Rate Schedule FTS of MRT’s FERC      Gas Tariff, Third Revised Volume No. 1.  Customer will provide      Fuel Use and LUFG.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 5)     | This      Agreement shall be subject to the provisions of the applicable rate      schedule as well as the General Terms and Conditions set forth in MRT’s      FERC Gas Tariff, Third Revised Volume No. 1, as on file and in effect from      time to time, and such provisions are incorporated herein by this      reference.  Any curtailment of transportation service hereunder      shall be in accordance with the priorities set out in MRT’s General Terms      and Conditions.  To the extent not inconsistent with effective      law, MRT shall have the right to determine the priority and/or scheduling      of the transportation service under this Agreement and to revise the      priority and/or scheduling of this transportation service from time to      time.                                                                                                                                                                                                            |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 6)     | MRT      shall have the right at any time and from time to time to file and place      into effect unilateral changes or modifications in the rates and charges,      and other terms and conditions of service hereunder, as set forth in the      applicable rate schedule and in the General Terms and Conditions, in      accordance with the Natural Gas Act or other applicable    law.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 7)     | Customer      may deliver or cause to be delivered to MRT a maximum receipt point      quantity at the Receipt Points described herein, and MRT shall redeliver      thermally      equivalent  quantities  at  the  Delivery  Points      described herein which excludes a quantity of gas for Fuel Use and      LUFG.  A maximum delivery point quantity is also specified for      each MRT delivery point.  For firm service, the sum of all      individual maximum receipt point quantities shall not exceed the maximum      receipt point quantities in the aggregate.  For firm service,      the sum of all individual maximum delivery point quantities shall not      exceed the maximum daily quantity set forth in this    Agreement.                                                                                                                                                                                                 |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 8)     | For      firm service, Secondary Receipt and Secondary Delivery Points are      available to Customer pursuant to the General Terms and Conditions of      MRT’s FERC Gas Tariff, Third Revised Volume No. 1.  Customer      agrees to pay any additional charges applicable to its utilization of a      Secondary Receipt Point.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 9)     | In      the event that MRT places on file with the Commission another rate      schedule which may be applicable to service rendered hereunder, then MRT,      at its option, may, from and after the effective date of such rate      schedule, utilize such rate schedule in the performance of this      Agreement.  Such rate schedule or superseding rate schedule(s)      and any revisions thereof which shall be filed and become effective shall      apply to and be a part of this Agreement.  MRT shall have the      right to propose, file and make effective with the Commission, or other      body having jurisdiction, changes and revisions of any effective rate      schedule(s) and/or General Terms and Conditions, or to propose, file, and      make effective superseding rate schedules and/or General Terms and      Conditions, for the purpose of changing the rates, charges, and other      provisions thereof effective as toCustomer.                                          |

| 10)    | Except      as provided in this paragraph, this Agreement shall not be assigned by      Customer in whole or in part without MRT’s prior written or electronic      consent, which consent shall not be unreasonably      withheld.  Customers under Rate Schedules FTS and SCT may      release their capacity consistent with the terms and conditions of the      applicable rate schedule and the General Terms and Conditions of MRT’s      Tariff.  Additionally, Customer may request that MRT consent to      Customer’s assignment of this Agreement, in whole, to an entity affiliated      with Customer.  For firm contracts, MRT will only consent to      assignment of the contract to a Customer’s affiliate, subject to the      assignee’s satisfaction of the criteria in Section 5.4(k), General Terms      and Conditions, in the situation in which, after Customer obtains the      contract, a corporate reorganization results in a transfer to an affiliate      of the function for which the capacity was obtained.  Any entity      that succeeds by purchase, merger, consolidation or otherwise to the      properties of Customer, substantially as an entirety, shall be entitled to      the rights and shall be subject to the obligations of its predecessors in      title under this Agreement.  In addition to all other rights and      remedies, MRT may terminate the Agreement immediately if it is assigned by      Customer without MRT’s consent, whether the assignment or contract be      voluntary or by operation of law or otherwise.  Subject to the      above, the respective rights and obligations of the parties under the      Agreement shall extend to and be binding upon their heirs, successors,      assigns and legal representatives. |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 11)    | Any      notice, statement, or bill provided for in this Agreement shall be in      writing (or, if this tariff requires, via electronic means) and shall be      considered as fully delivered when hand-delivered, telecopied, or when      received by the other party if mailed by United States mail, postage      prepaid, to the addresses specified herein (unless and until either party      notifies the other, in writing, of a change in its    address).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 12)    | Each      party shall notify the other in writing of the name, address, telephone      number, telecopy number and e-mail address of the person or persons who      shall have authority to act for such party in connection with this      Agreement, and operating notices shall thereafter be served upon such      person or persons.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 13)    | This      Agreement constitutes the entire agreement between the parties and no      waiver, representation or agreement, oral or otherwise, shall affect the      subject matter hereof unless and until such waiver, representation or      agreement is reduced to writing or, if MRT permits or requires, otherwise      memorialized via electronic means, and executed by authorized      representatives of the parties.  No waiver by either Customer or      MRT of any one or more defaults by the other in performance of any of the      provisions of the Agreement shall operate or be construed as a waiver of      any other existing or future default or defaults, whether of a like or of      a different character.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 14)    | THE      INTERPRETATION AND PERFORMANCE OF THIS  AGREEMENT SHALL BE IN      ACCORDANCE WITH THE LAWS OF THE STATE OF MISSOURI, EXCLUDING CONFLICTS OF      LAW PRINCIPLES THAT WOULD REQUIRE THE APPLICATION OF THE LAWS OF A      DIFFERENT JURISDICTION.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 15)    | Exhibits      A and B attached hereto are incorporated into this Agreement in their      entirety.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 16)    | This      Agreement amends and restates the currently effective Service Agreement      between the parties.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 17)    | The      parties agree that Customer has the Right of First Refusal      (ROFR).  If Customer chooses to exercise its ROFR, it shall do      so by following the procedures applicable to the exercise of a ROFR      provided for in the Tariff.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| 18)    | Pursuant      to Section 5.1(a), Rate Schedule NNT, of MRT’s Tariff, if after April 1,      2008 a firm customer of Customer (“Bypassing Customer”) directly connects      with MRT and terminates its customer relationship with Customer, Customer      shall have the right to reduce its MDQ, with corresponding reductions in      other applicable MRT contract entitlements, upon written notice to      MRT.  The parties intend that the amount of the reduction is to      reflect the amount of capacity that Customer had reserved under this      Agreement to serve on a firm basis those requirements of the Bypassing      Customer that were being served on Customer’s system on April 1, 2008,      whether or not those requirements as of April 1, 2008, were those of the      Bypassing Customer or of a predecessor customer of      Customer.  The amount of the MDQ reduction may be determined in      one of two ways.  Customer may provide an affidavit to MRT      setting out the Bypassing Customer’s contract demand on Customer for the      contract year in which the bypass is to take place and the average of that      contract demand and the Bypassing Customer’s contract demands on Customer      for the two preceding contract years.  If Customer provides such      an affidavit, the amount of the MDQ reduction shall equal the amount      designated by Customer up to the greater of (1) the Bypassing Customer’s      average                                                                                                                                                                                                                                                                                                                                   |

|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | contract      demand amount set out in Customer’s affidavit or (2) the Bypassing      Customer’s contract demand on Customer for the contract year in which the      bypass is to take place.  Alternatively, if Customer proposes an      MDQ reduction greater than the maximum amount described in the preceding      sentence Customer shall provide MRT with the proposed amount of the MDQ      reduction and the basis for that amount.  MRT’s agreement to the      amount of the MDQ reduction proposed by Customer under this alternative      shall not be withheld unreasonably.  This right to reduce MDQ      can be exercised up to thirty (30) days after service commences to the      Bypassing Customer over its direct connection with MRT as follows: the MDQ      reduction will be effective the latest of (1) the first day of the second      calendar month (a) after such service commences or (b) after exercise by      Customer of its right or (2) the first day of the month after the      termination of the Bypassing Customer’s customer relationship with      Customer.  Nothing contained in paragraph 18 shall preclude      Customer from claiming and exercising any additional rights to reduce MDQ      available to bypassed LDCs under the policies promulgated by the FERC      (see. e.g., Williams Natural Gas      Company, 81 FERC ¶61,301 (1997) at 62,412), as modified or amended from      time to time.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| 19)    | Pursuant      to Section 5.1(b), Rate Schedule NNT, of MRT’s Tariff, if Customer      unbundles its combined sales and distribution services for its local      distribution system pursuant to an order of any governing authority having      jurisdiction (“Unbundling”), Customer and MRT shall cooperate through      reasonable means in an effort to implement the Unbundling in a manner that      is fair to both parties.  Among other opportunities for      cooperation that may arise at the time to effectuate the ordered      Unbundling in a reasonable manner, Customer and MRT will work together to      assign to the appropriate entities, using the tariff capacity release      procedures (or such other mechanisms as may be available at the time),      capacity held by Customer under this Agreement to serve the customers      whose services are being unbundled.  Revenues received by MRT      from replacement shippers attributable to demand or reservation charge      payments for such released capacity shall be credited to Customer, in      accordance with the Tariff, to the extent of the demand or reservation      charge obligation that Customer may have with respect to such capacity.      With respect to the MRT capacity retained by Customer, if any, after the      parties have cooperated to implement Unbundling as set out above, Customer      will continue to have those rights relating to bypass set out in the      preceding paragraph.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| 20)    | In      response to MRT’s News posting dated February 13, 2008, regarding proposed      new Receipt Point interconnections to be established on MRT’s system,      Customer requested a change in its existing Receipt Points as part of its      agreement to extend this Agreement for five (5) years.  MRT      agrees to allow this Receipt Point change subject to the following terms      and conditions.  Effective with the in-service date of new MRT      Receipt Point interconnections with Chesapeake Energy #1 and Chesapeake      Energy #2 on MRT’s Transark Line, Customer’s Maximum Quantity at its CEGT      Vilonia and Ozark Receipt Points shall be reduced by 30,500 Dth/day and      19,500 Dth/day, respectively, and a Maximum Quantity of 25,000 Dth/day at      each of the new Chesapeake Energy #1 and Chesapeake Energy #2 Receipt      Points shall be provided for on Exhibit A.  In the event the      in-service date of the Chesapeake Energy #1 and Chesapeake Energy #2      Receipt Points are not contemporaneous, Customer’s Maximum Quantity at      CEGT Vilonia shall be reduced first by 25,000 Dth/day, and a Maximum      Quantity of 25,000 Dth/day shall be established at the first of the      Chesapeake Energy #1 or Chesapeake Energy #2 Receipt Points to be placed      in-service. On the in-service date of the second Chesapeake Receipt Point,      Customer’s Maximum Quantity at its Ozark Receipt Point shall be reduced by      19,500 Dth/day, its CEGT Vilonia Receipt Point Maximum Quantity shall be      reduced by an additional 5,500 Dth/day, and a Maximum Quantity of 25,000      Dth/day shall be provided for at such Chesapeake      point.  Customer agrees to provide MRT written notice six (6)      months after the effective date of this Agreement, and every six (6)      months thereafter, of its continuing interest in reserving capacity at the      Chesapeake Receipt Points.  This provision is subject to the      establishment and placement in-service of the Chesapeake Receipt Points      described above, and to Customer’s prompt execution of superseding      Exhibit(s) A to this Agreement. |

|                       |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   | Page      1 of 2 |
|----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------|----------------------------|--------|--------|------------------|
| EXHIBIT      A             |                                                                                                                                                                                                                                                                                                                              |
|                       |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
| Primary      Path(s):      |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
|                       | From                                                                                                                                                                                                                                                                                                                              |    |                       |   | To     |             |   |
|                       | #90571      Delhi @ Harrison                                                                                                                                                                                                                                                                                                      |    | #91030      MOGAS Pipeline |   |   |
|                       | #12817      Trunkline Gas Company                                                                                                                                                                                                                                                                                                 |    | #805607  Storage |   |   |
|                       |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
| Rate      Zone Capacity:   |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
|                       | FLD                                                                                                                                                                                                                                                                                                                               | 472,240 |        Dth/Day        |   |   |             |   |
|                       | MKT                                                                                                                                                                                                                                                                                                                               | 664,738 |        Dth/Day        |   |   |             |   |
|                       |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
| Line      Capacities:      |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
|                       | M                                                                                                                                                                                                                                                                                                                                 | 472,240 |        Dth/Day        |   |   |             |   |
|                       | W                                                                                                                                                                                                                                                                                                                                 | 75,968  |        Dth/Day        |   |   |             |   |
|                       | On      any given day the Customer is entitled to the greater of                                                                                                                                                                                                                                                                  |    |                       |
|                       | 75,968      or 74.47% of available West Line capacity.                                                                                                                                                                                                                                                                            |    |                       |
|                       | E                                                                                                                                                                                                                                                                                                                                 | 192,498 |        Dth/Day        |   |   |             |   |
|                       |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
| Line      Priority:        |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
|                       | FLD/M                                                                                                                                                                                                                                                                                                                             | 396,272 |        Dth/Day        |   |   |             |   |
|                       | MKT/M                                                                                                                                                                                                                                                                                                                             | 472,240 |        Dth/Day        |   |   |             |   |
|                       | FLD/W                                                                                                                                                                                                                                                                                                                             | 75,968  |        Dth/Day        |   |   |             |   |
|                       | MKT/E                                                                                                                                                                                                                                                                                                                             | 192,498 |        Dth/Day        |   |   |             |   |
|                       |                                                                                                                                                                                                                                                                                                                              |    |                       |   |   |             |   |
| Transportation      Zones: | FLD:  Field      Zone                                           MKT:  Market      Zone |    |                       |
| Service      Lines:        | E:  East      Line   M:  Main      Line   W:  West      Line   O:  Off  System                                                                                                                                                     |    |                       |

| RECEIPT      AND DELIVERY POINTS |
|----------------------------------|
|                             |   |   |   |
| Receipt      Points              | Maximum Quantity      (Dth/Day)* | Delivery      Points | Maximum Quantity      (Dth/Day)* |
|                             |   |   |   |
| Delhi      @ Harrison            | 35,000 | Laclede      Gas Aggregate | 641,327 |
| Meter      # 90571               |   | Meter      #805526 |   |
|                             |   |   |   |
| Carthage                         | 20,987 | Missouri      Interstate Gas | 23,411 |
| Meter      #808526               |   | Meter      #91030 |   |
|                             |   |   |   |
| Waskom                           | 18,540 | Storage | 664,738 |
| Meter      #808527               |   | Meter      #805607 |   |
|                             |   |   |   |
| Sligo                            | 1,441 |   |   |
| Meter      #90386                |   |   |   |

| Gulf      South Perryville        | 135,000 |
|-----------------------------------|---------|
| Meter      #90496                 |    |
|                              |    |
| Antioch      Gas to MRT Transark  | 18,500  |
| Meter      #91120                 |    |
|                              |    |
| Ozark                             | 21,800  |
| Meter      #90523                 |    |
|                              |    |
| CEGT      Glendale                | 183,972 |
| Meter      #805547                |    |
|                              |    |
| CEGT      Vilonia to MRT Transark | 37,000  |
| Meter      #805614                |    |
|                              |    |
| Trunkline      Gas Company        | 120,928 |
| Meter      #12817                 |    |
|                              |    |
| NGPL      @ Shattuc/Clinton       | 71,570  |
| Meter      # 805588               |    |
|                              |    |
| Storage                           | 664,738 |
| Meter      #805607                |    |

| CENTERPOINT      ENERGY - MISSISSIPPI RIVER | LACLEDE      GAS COMPANY                           |
|---------------------------------------------|----------------------------------------------------|
|                                        | TRANSMISSION      CORPORATION                      |   |   |   |   |
|                                        |                                               |   |   |   |   |
|                                        |                                               |   |   |   |   |
| By:                                         | /s/      Robert Trost                              |   | By: | /s/      Kenneth J. Neises |   |
| Name                                        | Robert      Trost                                  |   | Name: | Kenneth      J. Neises |   |
| Title                                       | Division      Vice President – Marketing MRT |   | Title: | Executive      Vice President |   |
| Date:                                       | March      18, 2008                                |   | Date: | March      18, 2008 |   |
|                                        |                                               |   |   |   |   |

| (a) | General:  In      consideration for Customer's continuing compliance with the provisions of      the Transportation Service Agreement ("Agreement") specified above, the      transportation rates and charges as defined below for the specified      services provided under the Agreement only apply to receipts from, and      subsequent deliveries to, the Points of Receipt and Delivery, quantities      and/or time periods described herein and to reserved capacity necessary to      effect such service.  In addition to any rate or amount referred      to herein (including discounted rates, Negotiated Rates, overrun rates and      maximum tariff rates), Customer shall pay any applicable charges,      penalties, surcharges, fees, taxes, settlements and/or direct billed      amounts provided for in MRT's Tariff.  In any event, the rate in      any month shall never be below MRT's applicable minimum tariff rate for a      discount rate transaction.  For a Negotiated Rate transaction,      the rate in any month shall never be below MRT's applicable minimum tariff      rate, unless MRT otherwise agrees.  MRT shall not be responsible      for the payment and satisfaction of any taxes assessed or levied on the      receipt, transmission (and any activities in connection therewith),      delivery, use and/or consumption with respect to gas delivered or received      by Customer, unless MRT agreesotherwise. |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (b) | Inability to Collect      Negotiated Rates:  If this Exhibit B covers a Negotiated      Rate transaction, and MRT is unable to collect Negotiated Rates due to a      change in Commission policy or rejection of the transaction by the      Commission prior to or during the term of such transaction, then, unless      the parties agree otherwise, Customer shall pay the maximum tariff rate      for the services.  In such event, MRT shall notify Customer in      writing of the requirement to pay maximum tariff rates and, if the maximum      tariff rates are greater than the Negotiated Rates under such transaction,      Customer shall have no more than thirty (30) days from the date of such      notification to give notice in writing of termination of the applicable      Agreement, with such termination to be effective no later than the end of      the month following the month in which such termination notice is      received. |
|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (c)    | Points:  The      Receipt Point(s) and the Delivery Point(s) eligible for the rates      specified herein shall be as set forth in Exhibit A.                                                                                                                                                                                                                                                                                                                                                                                                       |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| (d)    | Description      of      Rate:                                   Negotiated Rate     [         ]                                Discounted Rate     [ X      ]      (Check  one) |

|   | (i) | Base      Rate:  Customer’s rate for service shall be the maximum Base      Rate(s) for Rate Schedule FTS, as set forth in MRT’s Tariff from time to      time; provided, however, that during the term of this Agreement, the Base      Rate(s) paid by Customer shall not exceed the maximum Base Rate      Reservation and Usage Charges set forth on Sixty-Second Revised Sheet No.      5 (effective November 1, 2007), or if as a result of a rate design change      in a Section 4 or 5 rate proceeding, the equivalent of the maximum Base      Rate Reservation and Usage Charge(s) set forth on Sixty-Second Revised      Sheet No. 5 when computed at an assumed 100% Load Factor, as      follows: |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  Field to Market Zone      Transportation:         |  $0.1432 per      Dth |
|--------------------------------------------------------------|----------------------------|
|  Field Zone Only      Transportation:    |  $0.0736 per      Dth |
|  Market Zone Only      Transportation:                  |  $0.0696 per      Dth |

|   | (ii) | Surcharges:      All applicable Rate Schedule FTS surcharges, penalties, charges, fees,      taxes, settlements, direct billed amounts, and Fuel Use and LUFG      retentions provided in MRT’sTariff. |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  (e)          Term      of Rate:   | Begin      Date (s): | April      1, 2008                                                                                                                                                                                                                                                                                           |
|-----------------------------------------------------------------------------------------------------|----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                | End      Date(s):    | Primary      Term End Date and continuing thereafter unless and until terminated by      either MRT or Customer by written notice or electronically via the      Internet as permitted or required by MRT, to the other delivered at least      one (1) year prior to the date of the intended  termination. |

| (f) | Authorized      Overrun:  For discounted rate transactions, any      authorized overrun quantities shall be at the assumed 100% load factor      derivative of the Base Rate(s) set forth in (d) above, plus all applicable      Rate Schedule FTS surcharges, penalties, and Fuel Use and LUFG      retentions. |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  (g) | Rate-Related      Provisions: |
|-----------|-------------------------------|

|   | (i) | Consideration      for Rate Granted:  MRT agrees to the rates specified in this      Exhibit B in exchange for Customer's agreement to forego credits or other      benefits to which Customer would otherwise be entitled under the      Agreement, but only to the extent such credits or benefits would result in      a greater economic benefit over the term of this Exhibit B than that      represented by the agreed-upon rate.  Accordingly, unless MRT      otherwise agrees, Customer will not receive credits (with the exception of      (1) penalty revenue credits provided pursuant to Section 34 of the General      Terms and Conditions of MRT's Tariff, and (2) capacity release credits)      from rates, refunds or other revenues collected by MRT or Customer if to      do so would effectively result in a lower rate or greater economic benefit      to Customer; provided, however, that (I) for a Customer taking service      under a discount or recourse rate agreement, the rate in any month shall      never be above MRT's applicable maximum tariff rate, and (II) MRT and a      Customer taking service under a Negotiated Rate agreement can agree      pursuant to Section 14.2 of the General Terms and Conditions of MRT's      Tariff that MRT will retain some or all of the capacity release credits to      the extent those credits exceed the amount of the Customer's invoiced      demand component.  If the parties' agreement to the foregoing is      determined invalid or if Customer seeks to obtain credits or benefits      inconsistent therewith, unless MRT otherwise agrees, it will have the      right to immediately terminate or modify any provisions of this Exhibit B      that would allow Customer to pay amounts less than the maximum applicable      tariff rate. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (ii) | Regulatory      Authority:  This Exhibit B is subject to Section 30 of the      General Terms and Conditions of MRT's Tariff.  MRT and Customer      hereby acknowledge that this Exhibit B is subject to all valid and      applicable federal and local laws and to the orders, rules and regulations      of any constituted federal or local regulatory body or governmental      authority having jurisdiction.  Any provision of this Exhibit B      which is determined by any court or regulatory body having jurisdiction to      be invalid or unenforceable will be ineffective to the extent of such      determination only, without invalidating, or otherwise affecting the      validity of, the remaining provisions.  Except as otherwise      provided in subsection (b) above, unless the parties agree otherwise, if      MRT  reasonably determines that a federal or local law, or      order, rule or regulation of any governmental authority having or      asserting jurisdiction (1) requires performance by MRT that is      inconsistent with the terms of this Exhibit B, or (2) conditions or      prohibits the granting of selective discounts or other rates specified in      paragraph (d) of this Exhibit B, then MRT and Customer shall promptly take      all reasonable actions in good faith to enter into alternative      arrangements that will secure to the maximum extent practicable for each      party all of the benefits of the transaction set out in this Agreement;      provided however, that MRT shall not be required to enter into or continue      arrangements that would result in a greater economic detriment to MRT than      existed prior to the regulatory event orchange. |
|--------|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| CENTERPOINT      ENERGY - MISSISSIPPI RIVER | LACLEDE      GAS COMPANY                           |
|---------------------------------------------|----------------------------------------------------|
|                                        | TRANSMISSION      CORPORATION                      |   |   |   |   |
|                                        |                                               |   |   |   |   |
|                                        |                                               |   |   |   |   |
| By:                                         | /s/      Robert Trost                              |   | By: | /s/      Kenneth J. Neises |   |
| Name                                        | Robert      Trost                                  |   | Name: | Kenneth      J. Neises |   |
| Title                                       | Division      Vice President – Marketing MRT |   | Title: | Executive      Vice President |   |
| Date:                                       | March      18, 2008                                |   | Date: | March      18, 2008 |   |
|                                        |                                               |   |   |   |   |