Your list reports Computers/Internet as a separate category from Telecom Services & Equipment, and Computers/Internet beats out Oil & Gas on the 1998-2012 list. How much of Computers/Internet should be counted as Telecom?
I would like to point out that it is not "my list." I do not want to mislead anyone, the data was compiled by openserets.org (hence the reference links).
With that being said it is fairly easy to check and see what companies were included in the Computers and Internet category. The list for 2012 is quite long so I do not want to paste all the entries. Here are the links for 2012, 2011 and 2010 respectively:
