Godwin's Law comes into effect once Nazis are mentioned. You lose an argument.
A more effective analogy would be Bill Clinton and "what the meaning of 'is' is." Is CITGO foreign or not? That's the big question here.
I'm not making that argument, I'm just merely saying that the statement is reminiscent.
It looks like it is as per the DOE
http://tonto.eia.doe.gov/FTPROOT/financial/fdi2002.pdf
Foreign Direct Investment in U.S. Energy 2002
Citgo is listed as a foreign direct investment.