The United States still feels oil shocks. It just doesn't feel them the way it did when America was dancing to disco and waiting in gas lines. If the Fed is right, the idea that every oil shock leads to recession is outdated. A new study from the Federal Reserve Bank of Boston finds that rising domestic oil production has fundamentally changed how higher crude prices ripple through the U.S. economy. The result is a country that remains vulnerable to energy inflation but is far less likely to suffer the kind of employment damage that accompanied…