  A risk analysis is conducted considering several release sources located
around the NEOM shoreline. The sources are selected close to the coast and in
neighboring regions of high marine traffic. The evolution of oil spills
released by these sources is simulated using the MOHID model, driven by
validated, high-resolution met-ocean fields of the Red Sea. For each source,
simulations are conducted over a 4-week period, starting from first, tenth and
twentieth days of each month, covering five consecutive years. A total of 48
simulations are thus conducted for each source location, adequately reflecting
the variability of met-ocean conditions in the region. The risk associated with
each source is described in terms of amount of oil beached, and by the elapsed
time required for the spilled oil to reach the NEOM coast, extending from the
Gulf of Aqaba in the North to Duba in the South. A finer analysis is performed
by segmenting the NEOM shoreline, based on important coastal development and
installation sites. For each subregion, source and release event considered, a
histogram of the amount of volume beached is generated, also classifying
individual events in terms of the corresponding arrival times. In addition, for
each subregion considered, an inverse analysis is conducted to identify regions
of dependence of the cumulative risk, estimated using the collection of all
sources and events considered. The transport of oil around the NEOM shorelines
is promoted by chaotic circulations and northwest winds in summer, and a
dominant cyclonic eddy in winter. Hence, spills originating from release
sources located close to the NEOM shorelines are characterized by large monthly
variations in arrival times, ranging from less than a week to more than two
weeks. Large variations in the volume fraction of beached oil, ranging from
less then 50\% to more than 80% are reported.
