I agree with -ocb, Ken Derr was the best CEO while I was with Chevron because of the Tengiz addition. Then closely following was George Keller with the acquisition of Gulf and the West Africa assets. It was great when the company was run by someone who actually came up through the business of finding and producing oil and not accounting.
O'Reilly was the WORST CEO, especially for the employees, with the changes in the ESOP matching and removing retirees from the employee group health plans. Now it really means nothing to put in a career with Chevron and retire. Thanks to O'Reilly, when you retire from Chevron you are just thrown out onto the street.
Mike Wirth seems to be bring some common sense back to the CEO's office. So far I like his back to basics, profit centered policies and his emphasis on maintaining and growing the dividend for all of us retirees.