CONNECTICUT NATURAL GAS CORP

Annual report pursuant to Section 13 or 15(d) (amendment)

1

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

Additional Information for Proxy Statement/ Votes

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

No description available

5

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

Annual report pursuant to Section 13 or 15(d) (amendment)

Prospectus filed under Rule 424(b)(1)

Registration statement under Securities Act of 1933 (amendment)

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

Registration statement under Securities Act of 1933

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

Definitive Proxy Statement

No description available

5

Prospectus Supplement for Primary Offering

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

Annual report pursuant to Section 13 or 15(d) (amendment)

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

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

Annual report pursuant to Section 13 or 15(d)

Definitive Proxy Statement

Current report pursuant to Section 13 or 15(d)

Prospectus filed under Rule 424(b)(1)

Registration statement under Securities Act of 1933

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

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Annual report pursuant to Section 13 or 15(d) (amendment)

Current report pursuant to Section 13 or 15(d)

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

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