UPDATE 3-Oil jumps 5 pct after hitting 4-year low under $41
* Jumps 5 pct from 4-year low, Asia stocks up after Wall St * Prices fell 25 pct last week, biggest drop in nearly 18yrs
* Jumps 5 pct from 4-year low, Asia stocks up after Wall St * Prices fell 25 pct last week, biggest drop in nearly 18yrs