SA election, page-26

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