SEMCO ENERGY INC

Q: Sep 30 2007

Q: Jun 30 2007

Q: Mar 31 2007

FY: Dec 31 2006

FY: Dec 31 2006

Q: Sep 30 2006

Q: Jun 30 2006

Q: Mar 31 2006

FY: Dec 31 2005

Q: Sep 30 2005

Q: Sep 30 2005

Q: Jun 30 2005

Q: Sep 30 2004

Q: Jun 30 2004

FY: Dec 31 2004

Q: Mar 31 2005

FY: Dec 31 2004

Q: Sep 30 2004

Q: Jun 30 2004

Q: Mar 31 2004

8.01,9.01

2.02,9.01

8.01,9.01

1.01,3.03,8.01,9.01

8.01,9.01

8.01,9.01

2.02,9.01

8.01,9.01

8.01,9.01

Other Events

Results of Operations and Financial Condition

8.01

2.02,9.01

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

Other Events

5.02,8.01,9.01

Entry into a Material Definitive Agreement

1.01,2.03,9.01

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notice of Effectiveness

Notification of removal from listing and/or registration on a national securities exchange

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

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

No description available

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Registration of Securities on Exchange

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

No description available

No description available

No description available

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Required Information in Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

ARTISAN PARTNERS LTD PARTNERSHIP

DALTON GREINER HARTMAN MAHER & CO

MORGAN STANLEY

GAMCO INVESTORS, INC. ET AL

SCHREIBER GEORGE A JR

PODOWSKI CHARLES H

SMOTHERMAN LANCE S

VAN RODEN JOHN C JR

STEVENS BEN A

CLARK PETER F

PRENDEVILLE MARK T

DUBAY EUGENE N

SHERMAN THOMAS W

WARSINSKE STEVEN W

NAUGHTON PAUL F

PALMERI MICHAEL V

ABBOTT SHERRY L

KLEIN HARVEY I

FERRIS JOHN T

THOMASON DONALD W

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual Report Scanned (Paper)

Correspondence with the SEC

Correspondence with the SEC

No description available

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual Report Scanned (Paper)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual Report Scanned (Paper)

ITEM INFORMATION:

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

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual Report Scanned (Paper)

Annual Report Scanned (Paper)

No description available