This article once again tackles the question of whether we will see $4 a gallon gas this summer. Not long ago government sources were predicting a peak in gas prices in May. The new information tells us that inventories are at a 20 year low and our refining capacity is totally inadequate. It has been 31 years since we built a new refinery in the United States. Government regulations make it nearly impossible to add to refining capacity. Even if we had all the supply we needed, we would not have the refining capacity to meet our substantial demand.