The screen out may have been to do with too much sand in the...

The screen out may have been to do with too much sand in the propant. It may have also been due to the poor frac direction.
I am not a fraccing expert so I am guessing as to the reasons why.
previous STX management did put out a later update saying that they were attempting to clear a blockage downhole which suggests a screen out of sorts I guess. Either way I believe the frac was not done in the right direction anyway so it was seemingly a dud from the start.

I would suggest forgetting about K4