Here is a great article today on Bloomberg about why oil companies' share of the world's oil reserves are dwindling. This example is only one of many. Toward the end of the article, additional examples are given. We should be thanking these oil companies that they are willing to deal with these sorts of immense problems to bring energy to America. I can't imagine the headaches these oil companies must deal with as they try to manage relations with some of the world's worst despots!
BP Losing 23% of Production as Russians Assail Investment
These sorts of crippling problems are almost certain to increase the cost of oil going forward.