George Keller, former chairman and chief executive of Chevron Corp., died Friday. The 84-year-old Keller died in Palo Alto, Calif., from complications of orthopedic surgery, his daughter-in-law Emma Gilbey Keller told the New York Times, where Keller's son Bill is executive editor.

As chairman of the Standard Oil Company of California, Keller executed the company's takeover of Gulf Oil to form Chevron in 1984.

Industry analysts praised the acquisition, which cost $13.3 billion and was the largest corporate takeover at the time. The deal doubled Chevron's oil reserves, and much of its cost was covered by selling some of Gulf's assets.

Keller was born in Kansas City, Mo. on Dec. 3, 1923. He was fascinated by chemistry and went to the Massachusetts Institute of Technology, where he graduated in 1948 after a stint in the military.

Ed Turney, a co-founder of Advanced Micro Devices, died Wednesday. Turney, 79, died in Cupertino, Calif., from brain cancer.

His first job at semiconductor manufacturer AMD included buying equipment and overseeing construction of the company's first chip factory. He also built a sales organization and developed a network of electronics distributors.

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