Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

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Effective Date: 01/21/2008, Docket: RP08-135-000, Status: Effective

Fifth Revised Sheet No. 150 Fifth Revised Sheet No. 150 : Effective

Superseding: Fourth Revised Sheet No. 150






(e) Monthly imbalance dollar values will be recalculated for gas

trades. If the applicable transportation charges would change because

of the gas trade, the trading Customers will be individually responsible

for the resulting billing adjustment for their individual contracts.


10.5 Operational Balancing Agreements


(a) MRT will enter into Operational Balancing Agreements (OBAs)

with entities whose facilities interconnect with MRT's facilities as

required by FERC regulations. MRT shall negotiate in good faith and

enter into such OBAs with such interconnecting entities on a not unduly

discriminatory basis in the basic form of agreement set forth as part of

this tariff or, at MRT's option, in the basic form of agreement set

forth in the interconnecting party's tariff.


(b) MRT shall require interconnecting entities with which it is

required to enter into OBAs to demonstrate that there is electronic gas

measurement or similar equipment to provide accurate and timely flow

information at the interconnection point. Additionally, the

interconnecting entity must satisfy the credit criteria set forth in

Section 5 of these General Terms and Conditions.


(c) OBAs will set forth a mutually agreeable procedure for

dealing with imbalances between scheduled flows and actual flows at the

point of interconnection. If and to the extent that an OBA governs an

imbalance at an interconnection point, the Customers