Don't listen to what they're saying, look at what they're doing.
Saudi Arabia claims to be able to supply all the oil we'll ever need. Don't believe it. They've been lying about their reserves for the last half-century—ever since they threw the Americans out and started fudging the reserves figures.
Now, what is Saudia Arabia up to? Well, they're spending $100 Billion (guess where they got those dollars in the first place?) into installing solar power. They are going to install 41 Gigawatts of solar power.
Maybe this is why Iran is so anxious to build nuclear reactors. They're all running out of cheap oil.