This pattern is the easiest recognized, but can turn into an Acc/Dist pattern if the classic rules are not met. Beyond the H & S pattern he first rule is an uptrend line is broken as this did in June. The most important rule is that the decreases from the Left shoulder to the Right shoulder using CMF or OBV. Next the neckline breaks and then a retrace occurs to the .500 Fib. I also like to use the 200 day (I first began TA after reading Joe Granvilles book and use his rules for the 200 day, (and yes I know he fell out of favour). CVX appears to be meeting all these requirements although it may still go to the $120.00 level. I believe it needs to confirm the pattern by re-breaking the neckline. As are reported on Nov 1st it may move sideways before going down.
Remember predicting a three day weather forecast is 25 times more accurate than a three day stock forecast.