[4] Heavey was under pressure to step down as CEO in January 2013 when the firm missed production targets at a project in Ghana.
Heavey also ran into troubles in Uganda because the government demanded that the firm build a larger refinery than the one pre-agreed.
[5] Heavey was also criticised in May 2013 after he was seen sporting a €53,000 Patek Philippe watch during a turbulent time for Tullow Oil.
[6] In July 2013, Heavey was dragged in to a political row over whether a donation he made to the Conservatives before the general election in 2010 was connected to William Hague's intervention in Tullow Oil's Ugandan tax dispute.
Heavey donated £10,000 to the party and this was believed to have been in return for Hague's cooperation in the dispute, during which he reportedly telephoned the Ugandan President Yoweri Museveni to ask for Tullow Oil to be let off a £200 million capital gains tax bill.