Here we have Daniel comforting HW, humming a tune, while HW makes moaning noises, still trying to will his ears to hear. Daniel tells HW "That's enough! That's enough now." to his moaning but alas he wont stop. Daniel has no idea how to deal with this. Daniel shows so much pity in the scene it's heartbreaking. It hurts him more than anything to see his last line of life suffer in such a way, especially considering that he cannot offer any more insight to the oil business.
