"Bottom line: my assessment is that New Orleans is never going to be rebuilt and that US domestic oil production will never again reach pre-Katrina levels."

I'm no Ruppert fan but this sentence captures my concerns in a nutshell.  

exactement.
American oil production already peaked years ago, so technically you are correct. As far as NOLA not being rebuilt, the political pressure won't allow that to happen. Personally it seems like the area is too vulnerable to rebuild like it was built before. However, there are a lot of good ideas out there already about how to better protect the land. The problem was that the politicians didn't want to spend the $15 billion that it would have taken. With an estimated rebuild cost currently at $100 billion, it seems that someone should've been listening to all the people who've been talking about this for the past 20 years.