Discovery Gas Transmission LLC

Original Volume No. 1

Effective Date: 11/01/2008, Docket: RP06-595-011, Status: Effective

Fourth Revised Sheet No. 22a Fourth Revised Sheet No. 22a

Superseding: Third Revised Sheet No. 22.a

4 The negotiated rate is a usage rate. Transporter shall have the right to terminate the

negotiated rate on one-day's notice if Shipper fails to transport at least 66% of its MDQ

on average during each calendar quarter. For any refund due and payable to Shipper for

any period pursuant to Transporter's FERC Gas Tariff, Shipper shall be deemed to have

immediately assigned its right to the refund amount to the Transporter.

5 For any refund due and payable to Shipper for any period pursuant to Transporter's FERC

Gas Tariff, Shipper shall be deemed to have immediately assigned its right to the refund

amount to the Transporter.

6 Effective for the life of the lease on G22759- South Timbalier 288.

7 Year to year evergreen until terminated by either party with 3 months' prior written

notice.

8 This is a usage rate equal to the applicable maximum daily reservation rates. No

reservation rate will apply. All other applicable rates and charges required or permitted

by the FERC are unaffected by this negotiated rate.

9 Amendment to existing non-conforming service agreement, effective 11-01-07.

10 Year to year evergreen until terminated by either party with 30 days' prior written

notice.

11 The negotiated rate is a usage rate.

12 In the event the Commission directs Transporter to redesign its rates prior to, or during

the effective period of this Negotiated Rate, or requires the collections of costs or

charges through the Negotiated Rate that are not now a component of such rate, the

parties agree to renegotiate the Negotiated Rate to take into account such actions. Such

renegotiated rate shall reflect the economic positions of the parties.

13 The Negotiated Rates are:

Rates Period Receipt Point Delivery Point

$0.10/Dt April 01- Oct 31 Tennessee Transco

$0.14/Dt Nov 01- Mar 31 Tennessee Transco

$0.03/Dt Agreement term Tennessee Gulf South

$0.05/Dt Agreement term Tennessee All other

$0.09/Dt Nov 01- Mar 31 Larose Transco

$0.05/Dt April 01- Oct 31 Larose Transco

14 Month to month evergreen until terminated by either party with 10 days' prior written

notice.

Note: Pursuant to Section 12.2 of the General Terms and Conditions, the Right of First Refusal

provision does not apply to any transportation agreements for firm service listed above.