The title says it basically all. Below you see a glass of peanut butter of which the content is partly so liquid you could easily drink it. The label on the glass says "Creamy" but I have never had a glass with such a liquid peanut butter, may it be creamy or crunchy, not even of the same brand.
How come that this peanut butter has such a liquid consistency? Putting it in a fridge did not change the concistency.
Best Answer
What you can see in the jar is peanut oil, which has separated and floats on top. It means, you have bought a non-homogenized product, possibly an "all-natural" or "organic" product.
Just stir the oil into the thick paste at the bottom and use as usual.
For a discussion on how to best achieve this, see What's the most effective way to mix a jar of natural peanut butter?.