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Michigan Gas Utilities

Michigan Gas Utilities Corporation

MI · gas

Current parent: WEC Energy Group, Inc.
Open cases: 0
Updated: Jul 20, 2026

Current economics

Rate base: $509.07M
Authorized ROE: 9.86%
Authorized common-equity ratio: 50%

Oversight and service

MI Michigan Public Service Commissiongas

Proceedings

View all utility cases →

Michigan Gas Utilities 2021 rate case

U-20718 · Opened —

Closed

complete

Michigan Gas Utilities 2023 rate case

U-21366 · Opened —

Closed

complete

Michigan Gas Utilities 2024 rate case

U-21540 · Opened —

Closed

complete

Regulatory history

Effective date	Proceeding	ROE	Common equity	Rate base
Sep 26, 2024	Michigan Gas Utilities 2024 rate case U-21540 · Natural gas Compare stages ROE Authorized 9.86% → Utility request —	9.86% Authorized · Sep 26, 2024	50% Authorized · Sep 26, 2024	$509.07M Utility request · Mar 1, 2024

View full observation log (6)

Metric	Date	Stage	Value	Scope
Common equity ratio	Sep 26, 2024	authorized	50%	Authorized common-equity share of the overall capital structure
Rate base	Mar 1, 2024	utility request	$509.07M	Projected 13-month-average test-period rate base ending December 31, 2025
Return on equity	Sep 26, 2024	authorized	9.86%	Authorized return on common equity for retail natural-gas base rates effective January 1, 2025
Annual revenue change	Sep 26, 2024	authorized	$7.92M/year	Total company rate-case request or Commission-authorized outcome
Annual revenue change	Sep 26, 2024	utility request	$17.58M/year	Total company rate-case request or Commission-authorized outcome
Return on equity	Sep 26, 2024	utility request	—	Total company rate-case request or Commission-authorized outcome