Mailing Address 1411 THIRD STREET, STE. A PORT HURON MI 48060
Business Address 1411 THIRD STREET, STE. A PORT HURON MI 48060 810-987-2200
SEMCO ENERGY INC CIK#: 0000277158 (see all company filings)

SIC: 4924 - NATURAL GAS DISTRIBUTION
State location: MI | State of Inc.: MI | Fiscal Year End: 1231
formerly: SOUTHEASTERN MICHIGAN GAS ENTERPRISES INC (filings through 1997-01-31)
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File Number: 333-124005

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Items 1 - 5  333-124005 Filings RSS Feed
Filings Format Description Filed/Effective File/Film Number
EFFECT  Documents Notice of Effectiveness
Acc-no: 9999999995-07-004655 (33 Act)  Size: 2 KB
2007-11-29 333-124005
071276249
POS AM  Documents Post-Effective amendments for registration statement
Acc-no: 0000277158-07-000065 (33 Act)  Size: 32 KB
2007-11-09 333-124005
071229385
424B5  Documents Prospectus [Rule 424(b)(5)]
Acc-no: 0000950124-05-004840 (33 Act)  Size: 476 KB
2005-08-10 333-124005
051011840
424B3  Documents Prospectus [Rule 424(b)(3)]
Acc-no: 0000950124-05-004664 (33 Act)  Size: 472 KB
2005-08-04 333-124005
05997703
S-3  Documents Registration statement under Securities Act of 1933
Acc-no: 0000950124-05-002342 (33 Act)  Size: 712 KB
2005-04-11 333-124005
05744789