| 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  [    ]   |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | 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):  150,000 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, 13th  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             |                                                  |
|   |                                                  |                                                  |

|   |                                                | For Wire Transfer      Payment to MRT: |
|--------|-----------------------------------------------------|----------------------------------------|
|   | MRT Nominations (other      than electronic):       | Mississippi      River Transmission    |
|   | Client      Services                                | Chase      Bank of Texas               |
|   | Facsimile:  (318)      429-3298           | ABA      No. 113000609                 |
|   |                                                | Account      No.                       |
|   | MRT Pipeline      Operations:                       |                                   |
|   | System      Control Department                      |                                   |
|   | 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), GT&C, 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)    | Exhibit(s)      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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |

|                    |                                      |                            |                         |   |                     | Page      1 of 1 |
|-------------------------|-------------------------------------------|---------------------------------|------------------------------|--------|--------------------------|------------------|
| EXHIBIT      A          |                                      |
|                    |                                      |                            |                         |   |                     |             |   |
| Primary      Path(s)    |                                      |                            |                         |   |                     |             |   |
|                    | From                                      |                            |                         |   | To                       |             |   |
|                    | #805547      CEGT-Glendale                |                            | #805596      CEGT-Perryville |   |                     |
|                    |                                      |                            | #805607      MRT Storage     |   |                     |
|                    |                                      |                            |                         |   |                     |             |   |
|                    | #805602      CEGT-Olyphant                |                            | #805596      CEGT-Perryville |   |                     |
|                    |                                      |                            |                         |   | #805607      MRT Storage |             |   |
|                    |                                      |                            |                         |   |                     |             |   |
| Line      Capacity      | 150,000      Dth/Day Main Line Field Zone |                            |                         |   |
| Line      Priority      | 150,000      Dth/Day Field Zone Main Line |                            |                         |   |
|                    |                                      |                            |                         |   |                     |             |   |
| Rate      Zone Capacity |                                      | 150,000      Dth/Day Field Zone |                         |   |                     |

| RECEIPT      AND DELIVERY POINTS                                                                                                                             |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                                         |   |   |   |   |   |
| Receipt      Point                                                                                                                                           |   | Maximum Quantity      * | Delivery      Point(s) |   | Maximum Quantity      * |
| 805547                                                                                                                                                       |   | 100,000      Dth/Day | *STG |   | 150,000      Dth/Day |
|  CenterPoint      Energy Gas TransmissionCompany      (“CEGT”)/Glendale Interconnect;SW/4,      Section 5, T9N, R8W;Meter      #80547  |  MRT      Storage |
| MRT’s      storage facilities primarily located in Lincoln Parish, LA;Meter      #805607                                                               |
| 805602                                                                                                                                                       | 50,000      Dth/Day | 805596 |   | 150,000      Dth/Day |
|  CEGT/Olyphant      Interconnect;Section      7, T10N, R3W;Meter      #805602                                                                           |  CEGT/Perryville      Interconnect(Located      on MRT Main Line system);NE/4,      Section 24, T20N, R4WMeter      #805596 |

| 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 and (d)(iv)      below.                                                                                                                                                                                                                                                                                                                                                                                                                      |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| (d)    | Description of Rate:                              Negotiated      Rate [         ]                                            Discounted Rate [ X ] (Check      one)           |

|   | (i)    | Reservation      Charge: | $0.8390/Dth |
|--------|--------|--------------------------|-------------|
|   |   |                     |        |
|   | (ii)   | Usage      Charge:       | $0.0015/Dth |

|   | (iii) | Any      applicable Rate Schedule FTS surcharges, penalties, charges, fees, taxes,      settlements, direct billed amounts, and Fuel Use and LUFG retentions      provided for in MRT’s Tariff. |
|--------|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (iv) | In      addition to the points specified above, the discounted rates set forth      herein shall apply to deliveries to MRT’s interconnect with Gulf South at      Perryville on a secondary basis.  Deliveries to Gulf South are      operationally feasible only when MRT is receiving sufficient quantities of      gas into its system from Gulf South to make deliveries for Customer by      displacement.  The discounted rates shall also apply to receipts      from the Secondary Receipt Points described below in this Section (d)(iv),      provided that such receipts are subsequently delivered to the TETCO-White      County Secondary Delivery Point (no more than 30,000 Dth/Day) and/or the      MRT Storage Delivery Point described on Exhibit A, and further provided      that the quantities received from each Secondary Receipt Point described      below in this Section (d)(iv) do not exceed 50,000 Dth/Day from each such      point.  Any other services under this FTS Agreement shall be at      MRT’s maximum applicable FTS tariffrate. |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | Page      2 of 3 |
|--------|------------------|

|   |  EXHIBIT      B |
|--------|----------------------|

|   | (continued) |
|--------|-------------|

|  e)           Term      of Rate: | Begin      Date(s): | April      1, 2008                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------|---------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                         |                |                                                                                                                                                                                                                                                                                              |
|                                                                                         | End      Date(s):   | Primary      Term 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 intendedtermination. |

|   |                                                                                                                                                                                                                                     |
|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (f)    | Authorized      Overrun:                 For      discounted rate transactions, any authorized overrun quantities shall be      at the following    rate:  $0.0292/Dth. |
|   |                                                                                                                                                                                                                                     |
| (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. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | Page      3 of 3 |
|--------|------------------|

|   | EXHIBIT      B |
|--------|----------------|

|   | (continued) |
|--------|-------------|

|   | (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 |   |
|                                        |                                               |   |   |   |   |