Chevron Appalachia LLC has named Stacey Olson president. Olson’s appointment was effective June 15. She replaces Nigel Hearne who left the division in January to serve as deputy managing director and was recently named managing director of Chevron’s Australian business unit. Chevron Appalachia oversees the company’s assets in the Marcellus Shale and others in Michigan. Olson joined Chevron in 1989 and has worked for the company in various positions across the world.