At 25:55, POTUS slips in the word "GOLD" but most probably thought he said "coal" because he was talking about energy.
"We're putting our coal miners back to work and our steel workers back to work and our auto companies back to work. And, you know we've learned over the last 3 years, the incredible 'GOLD' that we're sitting on top of in this country. We're very lucky. We're now the largest energy producer in the entire world, bigger than Soviet Union, formerly…"