/CL (crude oil futures or USO, crude ETN) offers an objective long entry here at the intersecting 68.50ish price & uptrend line support for a quick bounce trade with stops somewhat below. 120-minute chart below.

CL 120m March 23rd

CL 120m March 23rd

A relatively tight stops not too far below 68 would seem ideal for those just looking for a quick ~2-3% or so reflexive bounce off support while one could also just set a trailing stop & let the position ride, if looking to catch another potential spike up due to any more developments in the Middle East.