Does Hakan have an unblockable/inescapable move? I was playing one the other day and got caught in his mixup where he does that diving grab move. The only way I didn't get caught was if I did an EX move to GTFO of there. If I blocked low, he grabbed me upon my wake up. If I neutral jump, he grabs me, too (but that's usually how he gets you: no block, block high, or jumping).
Blocking low would ordinarily work but for some reason, this one guy's Hakan kept getting me regardless of how I blocked.
In SF4 when you stand up after a knockdown your first frame is uncrouchable.
In order to avoid getting grabbed on the frame where you can't crouch you have to wake up with a normal attack (low short most popular option) as this cancels the uncrouchable frame and allows you to avoid the Oil Drive grab.