Prior to the broadcast, MEC said it sent HBO two letters, on June 12 and June 16, and had a lengthy conference call with their counsel on Saturday, June 17 to correct what they knew of “their proposed false and destructive broadcast and present the facts to them.” Time Warner and HBO, according to MEC, ignored the communications and aired the episode.

  Several news outlets said they have received a statement from HBO saying it had not yet seen the complaint from MEC. “We have confidence in the staff of ‘Last Week Tonight with John Oliver’ and do not believe anything in the show this week violated Mr. Murray’s or Murray Energy’s rights,” HBO said.

https://www.youtube.com/watch?v=aw6RsUhw1Q8