Wrong again Patriot.
The Aleyeska pipeline has plenty of life left in it.
You probably meant that the North Slope crude reserves are depleting.
Expect that eventually the pipeline will either carry the enormous amount of natural gas that is 
currently being compressed in the North slope, and returned into the formation, or new oil from ANWAR or the Chukchi Sea.
Shell already have the drilling and recovery equipment to develop the Chukchi and Beaufort Sea resources.