Leviticus 3:9

3:9 Then he must present a gift to the Lord from the peace offering sacrifice: He must remove all the fatty tail up to the end of the spine, the fat covering the entrails, and all the fat on the entrails,

Leviticus 7:12

7:12 If he presents it on account of thanksgiving, along with the thank offering sacrifice he must present unleavened loaves mixed with olive oil, unleavened wafers smeared with olive oil, and well soaked ring-shaped loaves made of choice wheat flour mixed with olive oil.