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1940-1949
A brief history of CenterPoint Energy

1948

  • American Gas and Power Co. changed its name to Minneapolis Gas Co. and acquired all the assets of Minneapolis Gas Light Co.

1947

  • Minneapolis Gas Light Co. switched entirely from manufactured gas to natural gas, needing to convert 370,000 appliances to run on "straight" natural gas instead of mixed gas.

1945

  • First employee retirement plan at HL&P became effective on July 1.

1943

  • HL&P's ties with the holding company, National Power & Light, severed on May 14.
  • HL&P's common stock is listed on the New York Stock Exchange, and trading began on August 16.

1940

  • Sealy electrical property purchased from Central Power & Light on October 8.
  • First medical insurance plan for employees at HL&P became effective October 1.