Valero Interstate Transmission Company

First Revised Volume No. 1

Effective Date: 11/01/1991, Docket: GT91- 42-000, Status: Effective

Original Sheet No. 57 Original Sheet No. 57 : Superseded

GENERAL TERMS AND CONDITIONS

----------------------------

(continued)

4. SCHEDULING OF RECEIPTS AND DELIVERIES

-------------------------------------

a. Shipper shall advise Vitco's dispatcher each day during normal

business hours of the volume and Btu content of natural gas

scheduled to be tendered at each of the Receipt Point(s) on the

following operating day. On said following operating day, the

receipt of such scheduled gas will be verified. No later than

the operating day next succeeding the day on which the receipt

of scheduled gas is verified, Vitco shall deliver the thermally

equivalent quantity of natural gas, after appropriate reductions

as identified in the applicable rate schedule and/or executed

Transportation Service Agreement, that Shipper desires Vitco to

deliver at each of the Delivery Point(s).

b. Operating conditions may, from time to time, cause a temporary

and unintentional imbalance between the total MMBtu's of natural

gas that Vitco receives under the executed Transportation Service

Agreement and the quantities of natural gas that Vitco delivers

under the executed Transportation Service Agreement. Vitco and

Shipper shall cooperate to eliminate any such imbalances as soon

as practicable but in any event no later than thirty (30) days

after the expiration of the term of the executed Transportation

Service Agreement. Vitco shall have the right to curtail trans-

portation service to Shipper hereunder if Shipper fails to

maintain a reasonable balance of its deliveries.

c. Any request for new deliveries, redeliveries or other operations

or for a change in existing service must be made at least 24

hours prior to the day for which the new deliveries, redeliveries

or other operations or change is requested; provided, however,

Vitco may at its discretion waive all or part of this requirement;

and provided further, however, that any request made orally shall

be confirmed immediately thereafter in writing by Shipper.

d. If Vitco delivers gas to Shipper under several rate schedules at

the same point or points of delivery on the same day Vitco shall

determine which quantities are delivered first.