Occidental Petroleum Corp. appointed Willie Chiang as executive vice president of operations.

Chiang will have oversight for the company’s midstream businesses and will also be part of its strategy, reserves, and corporate-wide capital allocation processes.

Since 1996, Chiang has held positions at ConocoPhillips, most recently as senior vice president of the refining, marketing, transportation and commercial sectors. Previous ConocoPhillips roles included senior vice president of commercial and president of supply and trading. Prior to joining ConocoPhillips, he spent six years with Powerine Oil Co. in Los Angeles and nine years at Chevron. He has also served on the boards of DCP Midstream and Chevron Phillips Chemical, and has been very involved with the American Petroleum Institute.

Chiang holds a bachelor of science degree in mechanical engineering from the South Dakota School of Mines and completed the advanced management program at the University of Pennsylvania’s Wharton School of Business.

Commenting on Chiang’s appointment, Occidental president and chief executive officer, Stephen Chazen, said, “Chiang brings to Oxy over 30 years of energy industry experience, a deep knowledge of the downstream and midstream sectors, and a proven track record for optimizing asset values through the supply and trading of a company’s commodity portfolio.”