A closed-door London arbitration tribunal between Heritage Oil and the Government of Uganda denies Ugandans the right to information about the management of the country's critical oil wealth, claim campaign groups and civil society leaders...[The] groups are calling for the proceedings and the case’s outcome to be open to the public. The tribunal will decide whether UK-listed Heritage Oil should pay US$435 million in capital gains tax to the Government of Uganda...Under tribunal rules the proceedings will take place ‘in camera’ meaning that there is no public access and that all documents, proceedings and outcomes will be confidential. [also refers to Tullow Oil]