Just ask Canada, and and a few small towns in North Dakota.
But finding oil doesn't actually increase the supply of the useful by-products we get from crude oil.
For example, Canada has gotten sick of waiting for the Obama administration to OK the pipeline that would deliver its oil down to the Gulf Coast refineries.
They've decided to ship it from their East Coast in massive tankers into the Gulf States.
But thats STILL a Bottle neck and it still leaves Canada hodling huge amounts of Crude oil that has no where to go.
Supply is NOT meating demand because without refineries their product is useless.