Southwest Gas Storage Company

First Revised Volume No. 1

Effective Date: 12/15/1999, Docket: RP00- 58-000, Status: Effective

Original Sheet No. 135 Original Sheet No. 135 : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

9. CONDITIONS OF RECEIPT AND DELIVERY (Continued)

9.4 Deliveries of gas at the Points of Receipt shall be at a pressure

sufficient to enter Southwest's facilities at such point.

Redeliveries of gas at the Points of Delivery shall be at such

pressure as exists in Southwest's facilities. Gas received and

redelivered shall be merchantable natural gas; shall be free of

water and hydrocarbons in liquid form; shall contain not more than

7 pounds of water vapor per MMcf, 1.0 grain of hydrogen sulphide

and twenty (20) grains of total sulphur per one hundred (100)

cubic feet, 2% of carbon dioxide (by volume), and fifty (50) parts

per million of oxygen; and shall not exceed one hundred twenty

degrees (120ø) Fahrenheit in temperature. The gas shall have a

total or gross heating value of not less than nine hundred fifty

(950) Btu and not more than one thousand two hundred (1,200) Btu

per cubic foot. Southwest shall not be obligated to accept gas for

storage which does not meet these quality provisions.

9.5 Upon termination of storage service under Rate Schedule FSS or

ISS, Shipper will balance any final imbalance within sixty (60)

days of the date that Southwest notifies Shipper of any final

imbalance. If at the end of such final balancing period,

Southwest owes Shipper gas which Shipper has not received,

Southwest will retain those Quantities free and clear of any

adverse claims.