Enbridge Pipelines (Midla) Inc.

Second Revised Volume No. 2

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Effective Date: 10/01/2001, Docket: GT01- 30-000, Status: Effective

Original Sheet No. 71 Original Sheet No. 71 : Effective

RATE SCHEDULE X-8

EXCHANGE AND TRANSPORTATION OF NATURAL GAS

SOUTHERN NATURAL GAS COMPANY

THIS AGREEMENT dated this 18th day of April, 1975, by and between

Southern Natural Gas Company, a corporation of the State of Delaware

(herein called "Southern"), and Enbridge Pipelines (Midla), Inc. (formerly

known as Mid Louisiana Gas Company), a corporation of the State of Delaware

(herein called "Enbridge Pipelines (Midla), Inc. (formerly known as Mid

Louisiana)");

WHEREAS, Enbridge Pipelines (Midla), Inc. (formerly known as Mid

Louisiana) has contracted to purchase from Mobil Oil Corporation ("Mobil") all

of the natural gas reserves controlled by Mobil in Block 140 Main Pass Area,

offshore Louisiana (Block 140); and

WHEREAS, under the terms of said purchase agreement, Mobil is to

gather and deliver said reserves to Enbridge Pipelines (Midla), Inc. (formerly

known as Mid Louisiana) at a point onshore in Plaquemines Parish, Louisiana;

and

WHEREAS, Enbridge Pipelines (Midla), Inc. (formerly known as Mid

Louisiana) has assigned to Southern the right to purchase 40% of the reserves

to be sold by Mobil from Block 140; and

WHEREAS, the point of delivery by the producers is located

approximately one (1) mile from Southern's existing 16-inch line in

Plaquemines Parish; and

WHEREAS, Enbridge Pipelines (Midla), Inc. (formerly known as Mid

Louisiana) does not own or operate any existing pipeline facilities in

Plaquemines Parish, Louisiana and is desirous of entering into an agreement

with Southern whereby (i) Enbridge Pipelines (Midla), Inc. (formerly known as

Mid Louisiana) will transport for Southern the gas purchased by Southern from

Mobil; and (ii) Enbridge Pipelines (Midla), Inc. (formerly known as Mid

Louisiana) will exchange with Southern Equivalent Volumes of gas which it

purchases from Mobil for gas which Southern has available from the Monroe

Field, Louisiana.

NOW, THEREFORE, in consideration of the covenants made and the

obligations assumed herein, Southern and Enbridge Pipelines (Midla), Inc.

(formerly known as Mid Louisiana) have and do hereby agree as follows: