Fuel leak

95 S10 4x2 2.2L MPI 126K got a fuel leak, looks like its coming from cyl.3 havent had time to pull it apart yet, i had a few thoughts injector o-rings, rusted fuel rail, i mean fuel is just all down the side of the engine but its not puddling, and its wet over injector 3 what do you guys think ? i mean i know chevys have rusted fuel rails alot and this truck is from michigan

I would first think it was the o-ring no big deal. Rusted fuel rails I really do not see a lot of. Another possibility is a cracked injector body.