Mohsen,
Sorry, been off the PDF for several days.
And to answer your question, yes my simple Google search found that Saudi Aramco (who own and operate most of Saudi Arabia refining facilities) lists JP-8 as one of the many products in this "Domestic Sales" list, which is the standard fuel for not just F-15s but nearly all aircraft in the USAF today.
What IS true is that back in the 1991 Gulf War, JP-8 was not produced in Saudi Arabia but at the time, there was still a hot debate within the DoD about whether they should switch to a single aviation fuel. This debate would result in JP-8 being adopted as the singular fuel for US aviation.
So given we have THE oil refiner in Saudi Arabia listing JP-8 as a domestic sales product..
http://www.saudiaramco.com/en/home/our-business/domestic-sales/our-refined-products.html
I'd say whatever source you were talking about before has no idea what they're talking about.
Heck, with a little more Googling, I found that even Djibouti has a refining facility (funded by a UAE company) that produces JP-8, which makes the idea that Saudi Arabia (whose only been refining oil for 70+ years now..) can't do so is beyond laughable, it's just sounds painfully stupid.