Just so we're clear, the EIA tracks several different prices for natural gas. Here's how much they varied in Feb-2012:wellhead price - $2.46/Mcfindustrial price - $4.25/Mcfcommercial price - <a href="http://ycvhnxirlg.com">$7ns./Mcfre9ide7tial</a> price - $9.40/McfEnd user prices are somewhat dependent on variations in the wellhead price, but not as much as one might think. Over the past 12 mos, the wellhead price dropped $1.90/Mcf. Over that same period, the industrial price dropped $1.40/Mcf, but the residential price only $0.60.