Mid Louisiana Gas Company

First Revised Volume No. 2

Effective Date: 04/01/1977, Docket: GT90- 37-000, Status: Effective

Original Sheet No. 91 Original Sheet No. 91 : Effective

RATE SCHEDULE X-9

(Continued)

ARTICLE I

SCOPE OF THE AGREEMENT

1. United has contracted to purchase that portion of the gas to be

produced from Block 140 which is attributable to the current leasehold

interests of POGO and PLATO in Block 140 (i.e., 20% of the total), and

which is produced from depths dedicated in said contracts. The gas is to be

delivered onshore in Plaquemines Parish, Louisiana by the producers where

liquids are to be mechanically separated from the common stream and the gas

is to be compressed for delivery into transmission pipelines.

2. Mid Louisiana and Southern have heretofore contracted to purchase

Mobil's 35% interest in the Block 140 gas, and Mid Louisiana will construct

and operate approximately three miles of 6-inch transmission pipeline to

extend between the outlet of a proposed compressor station, to be located

upstream from the Delivery Point, and Southern Is existing 16-inch line (the

Grand Bay Redelivery Point). Mid Louisiana will transport through this line

both its and Southern's portions of the Block 140 gas, and Southern will

accent delivery of the commingled stream at the Grand Bay Redelivery Point.

3. United has reached agreement with Southern whereby Southern will

receive at the Grand Bay Redelivery Point United's portion of the Block 140

gas, when that gas is transported by Mid Louisiana in its proposed 6-inch

pipeline and is delivered to Southern in a commingled stream with other

Block 140 gas. Mid Louisiana will have capacity in its 6-inch line to

transport the portion of the Block 140 gas which United has contracted to

purchase from POGO and PLATO (anticipated not to exceed approximately 7,500

Mcf per day under ordinary operating conditions), and Mid Louisiana is

willing and herein agrees to perform this service.

4. Contemporaneously herewith, United has executed with Mid Louisiana

an amendment to the existing Sales Agreement between them, dated September

25, 1970, whereby United has agreed to deliver to Mid Louisiana at existing

delivery points near Baton Rouge, Louisiana, gas heretofore delivered by

United to Mid Louisiana at the outlet of Mobil Oil Corporation's Cameron

Plant in Cameron Parish, Louisiana. Each party acknowledges that