1959

• Minneapolis Gas Co. first used the unofficial name of Minnegasco and used an Indian maiden icon to create a modern, helpful image.

1957

• Houston voters approved a new 50-year franchise for HL&P during a special election on July 27; franchise became effective October 1.
• Clute became the first city outside Houston to grant HL&P a new 50-year franchise on October 10.

1955

• Peak demand for electricity in Houston surpassed one million kilowatts for the first time, between 1 and 2 p.m. on June 27.
• 400,000th electricity customer meter installed in Houston area on September 30.

1953

• Arkansas Louisiana Gas was established as a publicly owned corporation on an order of the SEC under the Public Utility Holding Company Act, and the stock is listed on the American Stock Exchange.