Two Years Ago, Did El-Rufai Predict The Oil Crisis?

A screenshot of a tweet attributed to Malam Nasir El-Rufai 2 years ago reads as follows: "the fracking of shale oil and gas will make US a net exporter of oil in 5 years. Crude oil is predicted to crash to less than $50 a barrel.."


Was tweeting enough to back his prediction or it was just a passing comment?