The document summarizes US crude oil storage capacity and levels as of April 17, 2020. It notes that storage is concentrated around oil refineries, with negligible storage in pipelines and some in ships and at end users. As of April 17, total US storage capacity was 1.17 billion barrels, with the Strategic Petroleum Reserve providing an additional safety net of 727 million barrels. While the overall rate of storage builds had slowed, builds were not evenly distributed and were still occurring more rapidly in the Gulf Coast, Permian Basin, and Eagle Ford areas which have limited remaining capacity.