Hi Byron. In response to your question about America's offshore oil, I offer you a handy device:

1 million barrels of oil = one hour U.S. consumption
1 billion barrels of oil = one month U.S. consumption
1 trillion barrels of oil = one human lifetime ...

With this device, one can quickly make sense of the scale of an oil resource. A billion barrels sounds like a lot, but it's only one month.

The ANWR field in Alaska, for example, has about 20 billion barrels, or 20 months of supply for the U.S.

Thanks. I hadn't seen that before.