Drivers in Ohio and Michigan are dealing with a tough reality as gas prices have climbed significantly higher this week. Global unrest, especially in the Middle East, is causing major uncertainty in the international energy markets. These supply chain disruptions are putting upward pressure on fuel costs everywhere, but these states are feeling it more intensely. Refineries are struggling to keep up with the summer driving demand, leading to empty inventories in several key regions. Here is a look at what is happening and how drivers can cope with these rising bills.