Transwestern Pipeline Company

Second Revised Volume No. 1

Effective Date: 03/01/2001, Docket: RP97-288-014, Status: Suspended

Original Sheet No. 5B.09 Original Sheet No. 5B.09 : Suspended

25/ For the period March 1 to March 31, 2001, the combined reservation and commodity

transportation rate ("Rate") for the FTS-1 Agreement shall be calculated according

to the following formula:

The Gross Margin (defined below) booked by Shipper for all natural gas sold by

Shipper that was transported using capacity subject to the FTS-1 Agreement minus the

Fuel Value (calculated as the applicable volumetric percentage of fuel assessed

under Transwestern's FERC Gas Tariff times the applicable Gas Daily midpoint price

for receipts in the applicable area; TW SJ (Blanco) for San Juan receipts, and El

Paso Permian Basin Area for East of Thoreau receipts) times 50 percent.

The Rate includes any and all applicable pipeline surcharges. In no event shall the

Rate be less that zero. Transwestern shall allocate the Rate between reservation

and commodity components inclusive of surcharges. Gross Margin shall be the

difference between the sales price per MMBtu to be received by Sempra and the

commodity price per MMBtu paid by Sempra for all gas sold by Sempra each day that

was transported using capacity subject to the FTS-1 Agreement.

26/ Point(s) of Receipt Point Name

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(a) 56498 Bloomfield Compressor

(b) 58646 West Texas Pool

27/ Point(s) of Delivery Point Name

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(a) 10487 SoCal Needles

(b) 10487 SoCal Needles

28/ (a) 10,000 MMBtu/day

(b) 5,000 MMBtu/day

29/ For the period March 1 to March 31, 2001, the combined reservation and commodity

transportation rate ("Rate") for the FTS-1 Agreement shall be as follows:

a. For receipts and deliveries at the primary point of receipt and delivery set

forth on Appendix A to the FTS-1 Agreement, the Rate shall be $0.01/MMBtu.

b. For alternate deliveries to points West of Thoreau, the Rate shall be calculated

according to the following formula:

Gas Daily SoCal Large Pkgs midpoint minus Gas Daily Transwestern Permian

Basin Area midpoint minus applicable tariff fuel (calculated as the applicable

volumetric percentage of fuel assessed under Transwestern's FERC Gas Tariff

times the applicable Gas Daily midpoint price for receipts in the Transwestern

Permian Basin Area, for East of Thoreau receipts) times 30 percent.

30/ Point(s) of Receipt Point Name

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58646 West Texas Pool

31/ Point(s) of Delivery Point Name

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58649 Central Pool