Oak is generally easy to split. Jobs put off for a while tend to become jobs put off indefinitely.
Is Oak prone to splitting?
The simple answer is they are totally natural and nothing to worry about! As oak dries out it shrinks across the grain and develops splits and cracks, sometimes also called 'shakes'.
Is Oak easier to split wet or dry?
Oak, for example, is a popular hardwood that's easier to split when wet. When initially harvested, you can split wet or green oak without waiting for it to dry first. For most other species, though, you'll probably discover that dry wood is easier to split.