Stephen I. Chazen

Occidental Petroleum shareholders ousted Chairman and former Chief Executive Ray Irani in a dramatic annual meeting that signaled the end of an era for the storied oil and gas producer. It concluded a nearly three-decade run as a director of the Los...

Los Angeles-based Occidental Petroleum, one of the largest crude oil producers in the country, said its first-quarter profit fell but beat expectations as the company tried to cut costs and manage lower prices for natural gas. The earnings report...

The nation's fourth biggest oil company, Occidental Petroleum Corp., is primarily involved in oil and natural gas exploration and production. It is also a major manufacturer of oil-related chemicals. The Westwood company said its domestic production...

For several days, Occidental Petroleum Corp. has been roiled by speculation that its CEO search was really a power play by Executive Chairman Ray Irani to push out his onetime protege, Chief Executive Stephen Chazen. On Monday the Westwood company's...

When it comes to creating value, Occidental Petroleum Corp. Chief Executive Stephen I. Chazen beats out other Southern California business leaders, according to a new report from Pepperdine University. Chazen helped his Los Angeles company pull in $3.4...