Apache has nabbed ex-BP executive Stephen Riney, appointing him as its executive vice president and chief financial officer.
Riney has spent more than 30 years in the industry and joined BP in 1998 after its merger with US company Amoco.
Most recently, Riney was the chief financial officer for BP's exploration and production segment, before which he was global head of mergers and acquisitions.
Gordon Ramsay has been appointed as the general manager of business development at Far following its exploration success offshore Senegal in 2014.
Ramsay has more than 30 years of experience in the commercial and technical elements of the oil and gas industry.
Previously Ramsay worked for UBS Investment Bank as a senior energy advisor for investment banking and as a managing director. He has also worked at BHP Billiton and at Gulf Canada Resources.
Green Rock Energy
Stephen Copulos and Steven Tambanis have joined Green Rock as non-executive chairman and managing director respectively.
Copulos has spent more than 30 years in industries spanning from mining to manufacturing, property management and fast food. He is an active investor and is a director of Crusader Resources.
Tambanis comes to the managing director role with experience working for mineral companies such as WMC Resources and Goldminex Resources.
Currently, Tambanis is on the board of West African Gold.
Non-executive director Barnaby Egerton-Warburton has resigned as part of the changes, with Richard Beresford standing in for the role during the interim period.