EIA Natural Gas Storage Data
Total (05/18/12): 2,744 Bcf 
Total (05/11/12): 2,667 Bcf 
Change: 77 Bcf 
Year ago stocks: 1,994 Bcf
% diff to yr ago: 37.6 % 
5-year avg stocks: 1,991 Bcf
% dif to 5-yr avg: 37.8 %