1968

• Electric Tower opened for business in downtown Houston on July 8.
• First issue of HL&P preferred stock in 24 years, July 11.

1965

• Conversion from incandescent to mercury vapor street lights began in June; completed in 1967, two years ahead of schedule.
• New Galveston Service Center dedicated on October 28.
• Groundbreaking ceremonies held for Electric Tower on December 9.

1962

• 500,000th customer connected to power in Houston on December 7.

1961

• Hurricane Carla caused $1.5 million in damage to HL&P property on September 11.
• Houston's population reached one million on September 18.

1960

• Boiler No. 2 at Webster exploded on August 11, causing more than a half-million dollars in damage.
• HL&P requested first rate increase in company's history on September 27.
• Arkansas Louisiana Gas acquired Consolidated Gas Utilities Corp., Southwest Natural Gas Co. and MidSouth Gas Co.