Occidental Petroleum announced that CEO Vicki Hollub will retire on June 1, with COO Richard Jackson slated to take over her position. This leadership change comes as the company's stock performance is also being evaluated.

Vicki Hollub, the Chief Executive Officer of Occidental Petroleum, is reportedly set to step down from her position later this year.

Occidental Petroleum announced that CEO Vicki Hollub will retire from her position. Veteran Richard Jackson has been selected to succeed her as the company's new chief executive.

Vicki Hollub, the first woman to lead a major U.S. oil company, Occidental Petroleum (Oxy), is reportedly stepping down from her role as CEO.