Tom Wingerer has joined Woolslayer Companies Inc. as CEO.

Edward A. “Sandy” Lowe has been named president of Oxy Oil and Gas - international production.

Cris Gaut, president of the drilling and evaluation division at Halliburton, has requested early retirement from the company. Tim Probert will return to the drilling and evaluation division as its president, while also retaining his responsibilities for leading Halliburton’s technology, supply chain management, and mergers and acquisitions activity.?

Spectraseis has appointed Jean Chevallier, former vice president of industry affairs of Schlumberger Ltd., to its board as a non-executive director.

Mary Jane McCartney, senior vice president, gas operations, Consolidated Edison Co. of New York Inc. announced her retirement as chair of the GTI Board concurrent with her retirement from Consolidated Edison. Randall L.

Barnard, senior vice president, technical services and operations for Williams Gas Pipeline was elected to replace McCartney as chair of the GTI Board. Terry D. McCallister, president and COO, WGL Holdings Inc. and Washington Gas Light Co. was elected vice chair. The board has also elected Christopher D. Herrman to replace Kenneth L. Wicherek, GTI’s vice president of finance, treasurer, and CFO, who announced his retirement.
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Fluor Corp. has named Peter Oosterveer as its new group president of its energy and chemicals group.

Bob Heath has joined Seismic Source as international sales manager.