Westgas Interstate, Inc.

First Revised Volume No. 1

Effective Date: 06/01/1997, Docket: RP97-163-001, Status: Effective

Second Revised Sheet No. 31 Second Revised Sheet No. 31 : Effective

Superseding: Substitute First Revised Sheet No. 31

GENERAL TERMS AND CONDITIONS

(Continued)

1.14 "Interruption" means reducing, suspending or

discontinuing either the receipt or delivery of gas.

1.15 "Letter of Intent" means a non-binding stipulation

which usually refers to the reservation of capacity prior

to its availability.

1.16 "Mcf" means l,000 cubic feet of gas. "Mmcf" means

1,000,000 cubic feet of gas.

1.17 "Precedent agreement" means an agreement entered

into between Shipper and Transporter prior to the open

season set forth in 2.1 to these General Terms and

Conditions with a Letter of Intent submitted by Shipper.

1.18 "Month" means the period beginning at 9:00 a.m.

Central Clock Time on the first day of any calendar month

and ending at 9:00 a.m. Central Clock Time on the first

day of next succeeding calendar month.

1.19 "Overrun gas" means those volumes of gas tendered for

transportation by Shipper on any day in excess of the

currently effective contract demand or daily volume.

"Authorized Overrun" means the volume of gas authorized by

Transporter in excess of the contract demand or daily

volume specified in the applicable transportation service

agreement. "Unauthorized overrun gas" shall mean overrun

gas not accepted by Transporter for transportation.

1.20 "Prospective Firm Shipper" shall mean an entity that

has submitted a request for new or additional firm

Transportation service.

1.21 "Receipt point" means a point where Transporter

receives gas from or for the account of Shipper for

transportation on the system.

1.22 "Request for Service" means a written request for

service submitted by any party under 15 of the General

Terms and Conditions.

1.23 "Shipper" means any party who (a) is receiving

service in accordance with an effective rate schedule

under First Revised Volume Nos. 1, (b) has executed a service

agreement under any rate schedule, or (c) has completed a

request for service under Rate Schedules FT or IT.