Southwest Gas Storage Company

First Revised Volume No. 1

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

Original Sheet No. 110 Original Sheet No. 110 : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

3. NOMINATION AND SCHEDULING OF SERVICES (Continued)

3:30 p.m.Completed confirmations from upstream and

downstream connected parties

4:30 p.m.Scheduled Quantities made available by

Southwest for receipt by Shipper and point

operator

In addition, at the end of each Day Southwest shall make

available to Shippers information containing scheduled

Quantities, including scheduled intra-day nominations and any

other scheduling changes.

Shipper shall specify a begin date and an end date for each

nomination. Such begin date and end date shall be within the

term of Shipper's Storage Service Agreement. All nominations

should be considered original nominations and should be

replaced to be changed. When a nomination for a date range

is received, each Day within that range is considered an

original nomination. When a subsequent nomination is

received for one or more Days within that range, the previous

nomination is superseded by the subsequent nomination only to

the extent of the Days specified. The Days of the previous

nomination outside the range of the subsequent nomination are

unaffected. Nominations have a prospective effect only.

Should Shipper fail to provide this nomination on or before

the nomination deadline, Southwest may deem Shipper's

nomination to be zero.

Southwest shall have the right to refuse to inject or

withdraw any gas not timely and properly nominated and

confirmed. Shipper shall indemnify and hold Southwest

harmless from and Southwest shall not be liable to Shipper or

any other person as a direct or indirect consequence of such

refusal.

(D) Intra-day Nominations

Any nomination submitted after the deadline set forth in

Section 3.1(B) above shall be an intra-day nomination. An

intra-day nomination shall be effective for one Day only. An

intra-day nomination shall specify an effective date, time

and the daily Quantity. The interconnected parties shall

agree on the hourly flows for such Day.