ABB appointed Ulrich Spiesshofer, the head of its Discrete Automation and Motion (DM) division, to succeed Joe Hogan as CEO, effective September 15. Marcio Rocha Mello, founder and CEO of Brazilian E&P firm HRT, has resigned his position. He will retain his place on the board.
Clarence Cazalot Jr. will step down as Marathon Oil Corp.’s CEO. He will be replaced by ExxonMobil Development Co.’s Vice President of Engineering Lee Tillman on August 1. Marathon also picked up Bruce A. McCullough, who succeeded Thomas K. Sneed as vice president and CIO. Jeff Shellebarger succeeds Gary Luquette as Chevron’s new president of North American Exploration and Production, effective August 1. James J. Kleckner has been promoted to executive vice president, International and Deepwater Operations at Anadarko following Robert Douglas Lawler’s jump to Chesapeake Energy last month.
Peter Voser will retire as Shell CEO by 1H 2014. Arshad Matin joined Paradigm as president and CEO.
David Kemp succeeds Duncan Skinner as CFO of Wood Group PSN.
Ken Borda succeeded Peter Coates as Chairman of Australia’s Santos. Borda has been a non-executive director at the company since 2007.