And imagine that a sequence of two 4-point drops did not manage to tighten the Brent-WTI spread, which has negative unhedged delta (currently 15 points) so it should fall together with Brent... quite the opposite - the spread is still near the highs for this contract... a 15/5 R:R trade. (Edit: managed to roll from May to Jun CL at a discount that should overcome the contango for a few months: 111-109 sold, 106.5 bought, to add lower)