Centerpoint Energy - Mississippi River

Third Revised Volume No. 1

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

Third Revised Sheet No. 173 Third Revised Sheet No. 173 : Effective

Superseding: Second Revised Sheet No. 173

GENERAL TERMS AND CONDITIONS

(Continued)

14. CAPACITY RELEASE (Continued)

gross monthly revenue figure shall also be multiplied by:

(A) the average monthly transportation flow (in percentage

terms) that the Releasing Customer stated should be assumed

for bid evaluation hereunder, if any; or (B) otherwise, ten

percent (10%).

(ii) Each gross monthly revenue figure shall be

discounted to a net present value figure as of the first day

of the capacity release as set forth in the Release Offer,

using the current Federal Energy Regulatory Commission

interest rate as defined in 18 C.F.R. Section 154.501(d) or

any superseding regulations of the Commission.

(iii) The net present value figures for the proposed

release shall be summed, and such sum shall be the bid

value.

(iv) The unit bid value is defined to equal the bid

value divided by the product of: (A) the highest capacity

quantity (in Dth) sought in the Qualifying Bid for any day;

multiplied by (B) the release term (in months) in the

Release Offer; and multiplied further by (C) thirty and

four-tenths (30.4).

(v) The Qualifying Bid which produces the highest

unit bid value will be deemed to be the Best Bid.

(d) If there is no Winning Bid for the Releasing Customer's

capacity, the Releasing Customer may resubmit its Release Offer to MRT's

Internet web site for another posting period, and may modify any of the

terms and conditions of its previous Release Offer.

(e) MRT will post the names of, and affiliate and, as

appropriate, agent information for, all Winning Bidders for released

capacity pursuant to Sections 14.4(b) and (c) above.