KEY POINTS
  • Activist investor Carl Icahn says Occidental stock is down 41% under CEO Vicki Hollub.
  • Icahn was a vocal critic of Occidental Petroleum's deal to buy Anadarko Petroleum, a purchase seen by the longtime activist investor as "hugely overpriced."
  • Icahn also blames shareholders for a lack of input.

Billionaire investor Carl Icahn told CNBC on Thursday Occidental's $38 billion deal to acquire Anadarko "is one of the worst I've ever seen."

"And I've seen a lot of stuff that has gone over the many years we've been involved," the 83-year-old Icahn said in a telephone interview with Scott Wapner. "You take a look at OXY and you take a look at Vicki Hollub, who says that's she's done a great job and is interested in the long-term benefits to the company."