SOUTHERN NATURAL GAS COMPANY, L.L.C.

Automatic Shelf Registration

Prospectus Supplement for Delayed or Continuous Offering

Prospectus Supplement for Delayed or Continuous Offering

Post-effective amendment to an automatic shelf registration statement

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Delayed or Continuous Offering

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Notice of Effectiveness

Post-effective amendment to a registration statement

Certification of termination of registration of a class of securities (Section 12(b))

Post-effective amendment to a registration statement

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Notice of Effectiveness

Prospectus Supplement for Primary Offering

Correspondence with the SEC

Correspondence with the SEC

Registration statement under Securities Act of 1933 (amendment)

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933

Correspondence with the SEC

1.01,2.03,8.01,9.01

Other Events

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

5.01,5.03,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02

General form for quarterly reports under Section 13 or 15(d)

2.02

5.02

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Annual report pursuant to Section 13 or 15(d)

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Notice of Effectiveness

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Annual report pursuant to Section 13 or 15(d)

2.02,9.01

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

3.03,8.01,9.01

General form for quarterly reports under Section 13 or 15(d)

Regulation FD Disclosure

General form for quarterly reports under Section 13 or 15(d)

Annual report pursuant to Section 13 or 15(d)

Withdrawal of a registration statement

Regulation FD Disclosure

2.01,9.01

Material Modifications to Rights of Security Holders

General form for quarterly reports under Section 13 or 15(d)

1.01,3.03,9.01

General form for quarterly reports under Section 13 or 15(d)

Entry into a Material Definitive Agreement

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Notification of the removal from listing and registration of matured redeemed or retired securities