US · FMCSA ACTIVE
SEMCO ENERGY GAS CO
Port Huron, MI 48060 · DOT 216930
Company profile
Web-discovered · as of 2026-07-30
Michigan-based natural gas utility servicing customers, operating a private fleet primarily for utility maintenance and construction, delivering gas to over 300,000 customers.
Fleet use
Private fleet
Operating scope
Regional
Service model
own account
Ownership
Subsidiary
part of AltaGas Ltd.
Employees
501-1000
HQ · 1411 3rd Street Suite A, Port Huron, MI 48060, USA
Active website (semcoenergygas.com) and DOT 216930 confirms active operations.
Registry record
Source FMCSA · as of 2026-08-01
Fleet size
27
power units
Activity
road freight carrier
private licence
In operation since
1982
250 drivers
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