Continental Resources Inc. on Dec. 11 announced that Harold Hamm will be stepping down as CEO and will take up the role of executive chairman, effective Jan. 1, 2020.

William Berry was appointed as CEO, while the company's president Jack Stark will take on the additional role of COO.

Continental Resources explores for and produces crude oil and natural gas properties in the Bakken Shale of North Dakota and Montana and the SCOOP and STACK plays of Oklahoma.