HOC appears to be the most overvalued oil refiner. Even after adjusting for its cash position and ownership of shares in HEP, HOC trades at over $20,000 per BPD refining capacity. This is nearly double the valuation of VLO and SUN.
HOC only has 2 refineries and offers little diversification in the event of a refinery fire or explosion.
However, HOC's 2 refineries are in mid-continent markets where refining margins are currently much higher than Gulf coast and east coast markets and are much higher than last year. This is the reason why HOC stock price is so high and it is one of the only refineries that is projected to have higher Q4 EPS year over year.
This is keeping HOC on the momenum screens (IBD 100) ect and giving it a higher valuation. There is alot of non-oil money momentum investors still in HOC while they have abandoned many other oil investments that have fallen off the screens.
This is keeping HOC at an 11 PE while VLO/SUN are at 7 PE's. Because of HOC's cash postion versus VLO/SUN's debt position, a premium is warranted for HOC on a PE basis, but i come up with about a 9 PE for HOC. Thus HOC appears about 20% overvalued to me relative to VLO/SUN/TSO.
Notice that FTO another midcontinent debt free refinery only has an 8.9 PE. This is where HOC should be.
Conclusion: I believe you are correct to think that HOC may be overvalued. $44 seems more inline than the current $52.
My guess is that in 6-12 months HOC will fall as it comes off the momentum screens when next years comps are much much tougher. A long VLO short HOC pair will likely do well over this time period. Less sure about the next 3-6 months.