'Oil' in the Bible

The field is laid waste, the land mourneth; for the grain is destroyed, the new wine is dried up, the oil languisheth.

And Jehovah answered and said unto his people, Behold, I will send you grain, and new wine, and oil, and ye shall be satisfied therewith; and I will no more make you a reproach among the nations;

And the floors shall be full of wheat, and the vats shall overflow with new wine and oil.