Young Gas Storage Company, Ltd.

Original Volume No. 1

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Effective Date: 08/01/2010, Docket: RP10-921-000, Status: Effective

Eighth Revised Sheet No. 65 Eighth Revised Sheet No. 65

Superseding: Seventh Revised Sheet No. 65

GENERAL TERMS AND CONDITIONS

(Continued)

6.1 (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within that range, the previous Nomination is superseded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.

(NAESB 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. Transporter's mandatory and

optional data elements to be used by the Shipper shall

be clearly and definitively stated in the trading

partner agreement between Transporter and Shipper. Such

data elements shall conform to the requirements of Data

Dictionary standards as set forth in NAESB Standard

1.4.1.

(iii) Transporter'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 provider from the service

requester, the service provider should then process the

Begin Date/time and End Date/time consistent with the

intentions of the Standard 1.3.7 and then process the

rest of the transaction's data elements consistent with

the applicable standards to determine the business

results. When data is not supplied (e.g., is not

applicable, is not supported, or is not mutually agreed

upon), the pertinent portion of the key would be

determined to be null. (NAESB Standard 1.3.27)