7. Tony Buckingham
Net Worth: £565m
Anthony Leslie Rowland “Tony” Buckinghamis a former North Sea oil-rig diver and is currently an oil industry executive with a significant share holding in Heritage Oil Corporation. Heritage is listed on the Toronto Stock Exchange since 1999.
In 2008, Heritage listed on the London Stock Exchange.Buckingham’s direct and indirect share holding is estimated to represent 33% of Heritage. This share was reduced in November 2007 via a share placement made through JP Morgan and Canaccord.
Heritage Oil’s subsidiary, Heritage Oil and Gas, drew attention in the 2016 publication of the Panama Papers. Emails among the Panama Papers documents showed how Heritage Oil and Gas Ltd re-domiciled itself to avoid paying $400m (£280m) in capital gains Tax to the Ugandan government.