When you buy out foo the government insists that you get foos assets and liabilities to avoid an obvious exploit. This is presumably country by country enshrine

When you buy out foo the government insists that you get foos assets and liabilities to avoid an obvious exploit. This is presumably country by country enshrined in law made above the head of the companies by the government. When the government takes back foo by an act of government they aren't obliged to arrange the transaction in that way indeed they can define what the law is. Morally speaking I don't see the problem. They kicked out Texaco whose behavior was harming their nation and their people. Nationalizing their assets is morally valid remedy but it need not be entirely a cure for their wrongdoing.