Blood's stunning centrepiece — a newly struck oil gusher that erupts into a fountain of flame — echoes the hellish beauty of the locust holocaust in Terrence Malick's just - as - dreamlike Days Of Heaven.
(Jed Clampett, the Beverly Hillbilly, famously struckoil with a rifle bullet while out hunting) Those gushers were like free energy, with an EROEI of 100:1 or so.