Since the summer of 2010, NCPTT has been actively researching the removal of crude oil from objects and sites of cultural significance, such as Fort Livingston. This 19th century coastal fort on Grand Terre Island, Louisiana, was badly contaminated by the 2010 Deepwater Horizon oil spill. Our scientists visited the site twice last year to perform some preliminary studies on oil removal, and this summer I have been continuing with research on removing weathered oil from historic brick. The goal is to find a cleaning method that effectively strips the oil from the masonry without causing additional harm to either the structure or the environment.