"Exelon bids for major Texas power producer NRG." Houston Chronicle. October 20, 2008. Retrieved on April 14, 2014. "The plants were originally part of the former Houston Lighting & Power, the integrated utility that served the Houston area until it was broken up into three separate companies as the state deregulated its power markets."
"Development Downtown Houston" (Archive). CentralHouston. p. 14/17. Retrieved on April 14, 2014. "1999 Bob Lanier Building 611 Walker. City of Houston conversion of the former Houston Lighting & Power office building into offices for the Public Works and Engineering Department, Planning Department and other functions. Includes new tunnel links. Developer: City of Houston. Estimated cost: $43 million."
"Development Downtown Houston" (Archive). CentralHouston. p. 14/17. Retrieved on April 14, 2014. "1999 Bob Lanier Building 611 Walker. City of Houston conversion of the former Houston Lighting & Power office building into offices for the Public Works and Engineering Department, Planning Department and other functions. Includes new tunnel links. Developer: City of Houston. Estimated cost: $43 million."