drilling rig and oil tanks with green cornfield in the foreground in south texas eagle ford shale

american oil completion tree completions control delaware basin eagle ford economy energy independence equipment fossil frac compapny stack fraccing frack fracking fracturing fuel gas gasoline generation hydraulic industrial industry innovation money company background oilfield patch permian shale pipe power resource risers set stimulation technology texas wellhead west wolfcamp zipper drilling rig tanks green cornfield foreground south