There's a bunch of hydrogen sulfide up in the overthrust belt too.
If you do get more info, maybe they hit a gas pocket, if you don't, it could be the lawyers are involved... mud pressures, hardware failure, whatever.
Would you be kind enough to ping me when you find more on it?
When I find out more, I'll let you know.
Sometimes the true story of what happened is not known for months. The people who are writing about it don't know what they're talking about, and the attorneys don't let out a lot of information.
If there were people killed, the information will be tighter than Dick's hat band.