That F-15 was flying off of lift from the fuselage, the wing "shoulder" where the wing blends into the wing root, and the horizontal stab on that side. In modern fighters, the stabs often move independently to assist roll, so the stab on that side was probably deflected up to provide most of the lift on that side.
Pretty amazing IMHO.
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eagl <squealing Pigs> BYA
Oink Oink To War!!!