Young Gas Storage Company, Ltd.

Original Volume No. 1

Effective Date: 08/01/1999, Docket: RP99-359-000, Status: Effective

Third Revised Sheet No. 119B Third Revised Sheet No. 119B : Superseded

Superseding: Second Revised Sheet No. 119B

FORM OF STORAGE SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE IS-1

(Continued)

(b) Nomination Data Elements.

(i) 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Nomination is superseded by the subsequent Nomination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. (GISB Standard 1.3.7)

(ii) Certain Nomination data elements are identified as

"key" fields and define the basis of a unique

Nomination record. Changes to non-key data elements

will cause a previous Nomination containing the same

key data elements to be replaced. Young's mandatory

and optional data elements to be used by the customer

shall be clearly and definitively stated in the

trading partner agreement between Young and Customer.

Such data elements shall conform to the requirements

of Data Dictionary standards as set forth in GISB

Standard 1.4.1.

(iii) Young's Key Nomination data fields are composed of:

service requester contract (Service Agreement),

transaction type, Upstream Party, upstream contract

(when applicable), receipt location (as applicable),

Downstream Party (as applicable), downstream contract

(when applicable), Delivery location (as applicable),

Package ID, upstream package ID (where mutually

agreed), downstream package ID (where mutually

agreed), capacity type indicator (where mutually

agreed). Upon receipt by a service provider from a

service requester of a transaction whose key elements

match those previously received by the service