Southern Natural Gas Company, L.L.C. Watch

from 8-K 26 pages $300,000,000 Southern Natural Gas Company Southern Natural Issuing Corporation 4.40% Notes Due 2021 Purchase Agreement June 2, 2011

from 10-K 5 pages Amendment No. 4 to Receivables Purchase Agreement

from 10-Q 4 pages Amendment No. 3 to Receivables Purchase Agreement

from 10-Q 5 pages Amendment No. 2 to Receivables Purchase Agreement

from 10-K 6 pages Amendment No. 1 to Receivables Purchase Agreement

from 8-K 8 pages Receivables Purchase Agreement Dated as of October 6, 2006 Among Sng Funding Company, L.L.C., as Seller, Southern Natural Gas Company, as Servicer, Starbird Funding Corporation as the Initial Conduit Investor and Committed Investor, the Other Investors From Time to Time Parties Hereto, Bnp Paribas, New York Branch, as the Initial Managing Agent, the Other Managing Agents From Time to Time Parties Hereto, and Bnp Paribas, New York Branch, as Program Agent

from 8-K 3 pages Second Tier Receivables Sale Agreement Dated as of October 6, 2006 Between Sng Finance Company, L.L.C., as Seller and Sng Funding Company, L.L.C., as Buyer

from 8-K 3 pages First Tier Receivables Sale Agreement Dated as of October 6, 2006 Between Southern Natural Gas Company, as Originator and Sng Finance Company, L.L.C., as Buyer

from 8-K ~20 pages Registration Rights Agreement