Papers and correspondence relating to the arbitrations between Petroleum Concessions Limited, Qatar, Dubai and Abu Dhabi, on the extent of the oil concessions granted to Petroleum Concessions Limited and whether they covered the Continental Shelf. Includes correspondence, mainly with Barney Bischoff, also with letters from Arnold McNair and Sir Walter Monckton, instructions to Counsel, draft Opinions, photographs from a visit to Qatar for a hearing of the case and a paper read to the Grotius Society on the Continental Shelf, by Sir Cecil Hurst.