A gallon of oil! Wow - hadn't heard that, but it makes sense since the menorah was so big. Now I have a funny cartoonish picture in my head of Noah's dove dragging an olive tree over the waters back to the ark. "Boy, what I have to do for posterity!" he says. Maybe the oil had many miracles attached to it, and it increased over the generations, like Elisha increasing the poor widow's oil (2 Kings 4:1-7).