• 1900 - founded by
Emerson McMillin as president • 1935 - enactment of
Public Utility Holding Act forced break-up of company due to antitrust provisions regulating integrated utility companies • 1938 - Michigan Consolidated Gas (
MichCon) formed • 1949 - Michigan Consolidated Gas, the Milwaukee Gas Company, the Michigan-Wisconsin Gas Company, the Austin Field Pipeline Company and the Milwaukee Solvay Company merge to become American Natural Gas Company • 1981 - MichCon becomes wholly owned subsidiary of Primark • 1988 - spun off • 2001 - merger with
DTE Energy ==External links==