ET had a very bad period with court cases on their Dakota pipeline as well. But the fundamentals dont support such discount. Plus I think that the price and the trend now are good for opening long term long possition. It is at its IPO price, it has been lower only twice and that is in 2009 and this March - the consolidation since then is going to get finished and it hopefully breaks the wedge upside.
Not trading advice. Keep safe.
P.S - I just bought some at 5,49.