Who allow Exxon to drill for oil on public land?

why notWho allow Exxon to drill for oil on public land?
They could drill in my back yard if there was oil .So we could stop dealing with the outside enterprises.Who allow Exxon to drill for oil on public land?
so you don't want Exxon to drill for oil on public land..where are they going to drill..you had better hope that find oil or you will be walking