Chevron Corp. (NYSE: CVX) has named Steven W. Green as president of Chevron North America E&P, effective March 1, 2019, according to a news release.

Green, who is president of Chevron Asia Pacific E&P, will succeed Jeff Shellebarger, who is retiring from Chevron after 38 years of service. In his new role, Green will oversee Chevron’s E&P activities throughout North America, including the company’s significant portfolio of assets in Canada, California, the Gulf of Mexico, Pennsylvania and the Mid-Continent region of the U.S, the release said.

In addition, Chevron announced Nigel Hearne will succeed Green as president of Chevron Asia Pacific E&P, effective March 1, 2019. Hearne is managing director of Chevron Australia and head of the Australasia Business Unit with responsibility for the company’s upstream interests and activities in Australia and New Zealand. In his new capacity, Hearne will oversee nine countries across the Asia-Pacific region, the release said.