WTI Crude - Ending Diagonal heading into contract expiration

Took a long position at fridays pullback. Oil has a tendency to sell off big before contract expiration. This clearly looking like an ending diagonal formation. I plan to swing it something like this, looking to reenter long once correction is done. I think we can expect some big gains starting next upward impulse at the end of month. I'm still very bullish but It's very likely we could see a big pullback coming next week.