In an email to company employees, Lawler said chief operating officer and executive vice president of operations and geo­sciences Steve Dixon, executive vice president of production Jeff Fisher, senior vice president of drilling Steve Miller, and senior vice president of human and corporate resources Martha Burger would be leaving “to pursue other opportunities”.

“As part of Chesapeake’s transformation to a top performing E&P company, I am reorganising our executive level leadership structure,” Lawler wrote in the email, seen by Upstream.