BP (NYSE: BP) said on March 20 it has appointed Susan Dio as chairman and president of BP America Inc., BP’s chief representative in the U.S., effective May 1, 2018.

Dio succeeds John Mingé, who will move to chair a study by the National Petroleum Council into CCUS technologies and their potential deployment. He will retire from BP in March 2019.

Susan Dio, a chemical engineer by training, has been the CEO of BP Shipping for the past three years, responsible for BP’s shipping business worldwide. Previously during her 33-year career with BP and heritage companies, she held a series of senior commercial and operating roles in the U.S., U.K., and Australia.

“Susan’s breadth of operational and commercial experience gained with BP around the world—including leading our global shipping business, running a major refinery, and managing a chemical plant—make her ideally-suited for the key role of representing BP in the U.S.,” Bob Dudley, BP’s group CEO, said.