I love these little jabs by J.R. J.R. had set up Cliff on an oil field which was a dry hole. Instead of just calling Cliff to tell him that he was drilling a dry hole, he brought this decanter of oil into Cliff's office. Cliff: What's this? J.R. Well, considering your background, I can understand why you don't recognize oil when you see it. J.R. explains that the decanter of oil was going to be the only oil Cliff would see from those fields.