The Pumpherston retort (also known as the Bryson retort) was a type of oil-shale retort used in Scotland at the end of 19th and beginning of 20th century. It marked separation of the oil-shale industry from the coal industry as it was designed specifically for oil-shale retorting. The retort is named after Pumpherston town in Scotland, which was one of the major Scottish oil shale areas. The retort was commercialized by Pumpherston Oil Company.