was in early january. crude oil futures were down 11 cents to close at 95.72 a barrel, but the entire equation may be changing. our chief national correspondent jim angle reports the days of america s against oamerica s den oil could be numbered. reporter: the u.s. has discover energy than it thought it had. some talk about north american energy independence. we could make opec n0pec. the reason, advances in technology such as fracking, horizohorizontal drilling and or improvements which increase natural gas production by 27% in just four years, making the u.s. number one in gas with oil on its way. we re talking decades, if not into the hundreds of years of supply in north america. it s been estimated by the energy information agency that