Annual report summary

GD, GTG programs reported

Operating in MI
2024
Total regulated miles
7k
across reported programs
Service connections
307k
latest reported total
LNG facilities (if any)
—
facilities reported
Program Miles Services State Year
Gas Distribution 7k 307k MI 2024
Gas Transmission & Gathering 3 — MI 2024

Miles by installation service by decade.

Gas Distribution
2k mi peak 7k total
Pre-1940
34
1940–1949
5
1950–1959
174
1960–1969
1k
1970–1979
438
1980–1989
814
1990–1999
2k
2000–2009
771
2010–2019
948
2020–2029
630
Unknown
64
Gas Transmission & Gathering
48 mi peak 128 total
Pre-1940
0
1940–1949
0
1950–1959
13
1960–1969
26
1970–1979
18
1980–1989
13
1990–1999
2
2000–2009
8
2010–2019
48
2020–2029
1
Unknown
0
Reference
Operator name SEMCO ENERGY GAS COMPANY
Primary ID 18472
Programs GD, GTG
Contact details
Preparer name J******r P**d
Preparer title Manager Codes & Standards
Preparer phone (810) 887-4227
Preparer email j***********d@s*********y.c*m
Preparer fax (000) 000-0000
Preparer address —
Report submission type INITIAL
Report date 2025-03-14T00:00:00
Filing date 2025-03-14T00:00:00
Additional information —
Form revision 7100.1-1 (Rev. 06-2023)
Company official name —
Company official title —
Company official phone —
Company official email —
Company official fax —
Emergency contact name —
Emergency contact phone —
Emergency contact email —
Section 6 — Flattened data preview
Key Value
annuals.gd.miles 6700.3
annuals.gd.report_year 2024
annuals.gd.services 306831.0
annuals.gd.source_count 1
annuals.gd.state MI
annuals.gd.year 2024
annuals.gtg.miles 3.079
annuals.gtg.report_year 2024
annuals.gtg.source_count 1
annuals.gtg.state MI
annuals.gtg.year 2024
annuals.raw.gd.COMMODITY Natural Gas
annuals.raw.gd.DATAFILE_AS_OF 12/1/2025
annuals.raw.gd.OFFICE_ADDRESS_STATE MI
annuals.raw.gd.OPERATOR_ID 18472.0
annuals.raw.gd.OPERATOR_NAME SEMCO ENERGY GAS COMPANY
annuals.raw.gd.OPERATOR_TYPE Investor Owned
annuals.raw.gd.REPORT_NUMBER 20251240.0
annuals.raw.gd.REPORT_YEAR 2024.0
annuals.raw.gd.SUPPLEMENTAL_NUMBER 72928.0
annuals.raw.gd.created_at 2025-12-05 14:43:55.522769
annuals.raw.gd.report_data.AVERAGE_LENGTH 109.99
annuals.raw.gd.report_data.FED_LAND_LEAKS_REPAIRED 0.0
annuals.raw.gd.report_data.FILING_DATE 2025-03-14T00:00:00
annuals.raw.gd.report_data.FORM_REV 7100.1-1 (Rev. 06-2023)

1541 additional key/value pairs available.

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