Young Gas Storage Company, Ltd.

Original Volume No. 1

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

First Revised Sheet No. 119I First Revised Sheet No. 119I : Superseded

Superseding: Original Sheet No. 119I

FORM OF STORAGE SERVICE AGREEMENT

APPLICABLE TO RATE SCHEDULE IS-1

(Continued)

Shown below in tabular format is a representation this GISB Standard 1.3.2(ii),

(iii), and (iv). All times are in Central Clock Time.

Evening Intraday 1 Intraday 2

Cycle Cycle Cycle

(for flow on (for flow on (for flow on

next Gas Day) current Gas Day) current Gas Day)

(Interruptible (Interruptible

Nominations are Nominations are

subject to Bumping) subject to Bumping)

(i) Gas Day affected by Intraday

Nomination begins ------ 9:00 a.m. 9:00 a.m.

(ii) Intraday Nomination Period Ends

(Nominations leave control

of Nominating Party) 6:00 p.m. 10:00 a.m. 5:00 p.m.

(iii) Nominations received by

Transporter 6:15 p.m. 10:15 a.m. 5:15 p.m.

(iv) Transporter Quick Response

to Nominating Party 6:30 p.m. 10:30 a.m. 5:30 p.m.

(EDI Only)

(v) Completion of Upstream and

Downstream Interconnect

Confirmations 9:00 p.m. 1:00 p.m. 8:00 p.m.

(vi) Issuance/Posting of

Transporter's Report

of Confirmed Quantities

and Notices to Bumped

Parties 10:00 p.m. 2:00 p.m. 9:00 p.m.

(vii) Gas Day Affected by

Intraday Nomination begins 9:00 a.m. ------ -------

(viii) Nomination Effective Time 9:00 a.m. 5:00 p.m. 9:00 p.m.

(Grid-wide synchronization

Times, (GISB Standard

1.3.41)