Hugh McNeal, former chief executive of RenewableUK trade body, was appointed a member of the board of directors of Proserv.
Gileno Gurjao Barreto was appointed chairman of Petrobras.
Dale Millward was appointed Stats Group's vice president technical assurance in Doha.
Former Petronas chief executive Shamsul Azhar Abbas was appointed as an independent director of Deleum.
Siemens Gamesa has appointed Anna Beranek as head of corporate affairs, based in Madrid.
Michelle Bimson Maggi was appointed the first chair of the US National Propane Gas Association (NPGA).
Hugh McNeal, former head of RenewableUK, takes Proserv position
The week’s leading appointments in the oil and gas industry
Editor's note: US District Judge Mary Ann Vial Lemmon dismissed the litigation against the owners of Mariner Shipyard in April 2010.