Peak Underground Working Natural Gas Storage Capacity
"The demonstrated peak working gas capacity for U.S. underground working natural gas storage for the lower 48 states as of April 2010 is estimated to be 4,049 billion cubic feet (Bcf), a 4.1 percent increase over last year's estimate. This estimate is based on demonstrated noncoincident peak working gas storage volumes for individual active gas storage facilities reported to EIA over a 60-month period ending in April 2010. Working gas design capacity, a less conservative indicator of natural gas storage capacity, also rose over the past year, increasing 51 Bcf, or 1.2 percent..."