human
Can you tell me which countries have been the largest oil producers historically, and also, today?
gpt
Sure, the largest historical producers of oil have been the United States, Russia, and Saudi Arabia.  In recent years, the United States has become the largest producer again.  Also, a new producer on the scene is Canada.
human
Thanks are there any other Middle Eastern countries that produce near as much as Saudi Arabia?
Yes, Iran is a large producer.
Yes, Iran has been a significant oil producer for a long time, and also Iraq has started to ramp up production in recent years.