Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

Effective Date: 09/01/2005, Docket: RP05-436-000, Status: Effective

Fifth Revised Sheet No. 114 Fifth Revised Sheet No. 114 : Effective

Superseding: Fourth Revised Sheet No. 114

GENERAL TERMS AND CONDTIONS

(Continued)

7. CONDITIONS OF RECEIPT AND DELIVERY (Continued)

(b) Constant Rates. MRT shall tender and Customer shall receive

gas transported hereunder at uniform hourly rates as and when

operationally feasible throughout each day and throughout each month.

7.12 Delivery Point Aggregation

MRT will treat all the operationally similar delivery points of an

integrated system as one delivery point. Such aggregated points shall

be set forth on MRT's Internet web site, and shall be designated with

one delivery location code.

7.13 PDA - Deliveries

(a) The PDA methodology provided will be utilized by MRT for the

allocation of deliveries. Upon thirty (30) days' notice provided via

posting on MRT's Internet web site, MRT may require that such PDA

methodologies be provided to it electronically via the Internet. The

PDA methodologies which may be agreed upon in accordance with NAESB

Standards include: ranked, pro rata (weighted), percentage, swing and

operator provided value. Entities affected by the allocation of gas

quantities shall be entitled to know the allocation methodology

utilized, except that MRT shall keep confidential the names of the other

entities involved unless otherwise agreed by the affected parties. MRT

shall provide daily operational allocations within one (1) business day

after the day of gas flow as set forth in Section 10.1 of these General

Terms and Conditions. MRT may use scheduled quantities as the basis for

such reports if such information is the best information available.

(b) Two welded parties should agree on who submits a PDA

methodology and who allocates at the point before gas flows ("allocating

party").

for a point. At a location which is covered by an OBA, each party to

the OBA will allocate its side of the location.

(d) Only one PDA allocation methodology should be applied per

allocation period.

(e) The upstream or downstream party providing the point

confirmation should submit the PDA to the allocating party after or

during confirmation and before start of gas day.