The Abu Dhabi Marine Operating Company (ADMA-OPCO) operates four light sour crude producing fields; Umm Shaif, Lower Zakum, Umm al Lulu, and Nasr. Umm Shaif was Abu Dhabi's first offshore oil discovery in 1958. It is located 150 kilometres northwest of Abu Dhabi city, in water depths of less than 20 metres. Lower Zakum is located southeast of Umm Shaif, closer to shore. Oil production from both fields is transported by pipeline to the processing and export terminal on Das Island, about 30 kilometres west of Umm Shaif. Three new fields on the ADMA acreage - Umm al-Lulu, Nasr and Satah al-Razboot (SARB) - are under development. Umm al Lulu and Nasr are included in this analysis, whereas Satah al-Razboot is excluded as it is being developed on a sole risk basis by the Abu Dhabi National Oil Company (ADNOC).