Here’s a little-used graphic of currently understood domestic oil potential, that the Washington Post ran some months ago:  
(Drill the pic for full size)
Now, before you comment on the limitations involved, be aware most of the limits are man made. Environmental laws and so forth… laws which are hindering our energy independence.
Further, please consider the post I ran just yesterday , about the major oil find in Brazil. Like them, we could and likely will, find more than we know about, currently. The difference? They’re out there looking for it.
Ask your congresscritters… both Democrat and Republican… why we’re holding back on drilling domestically, both in exploration and production.