It's tricky to pinpoint just 4 countries as the major producers of mineral oil and coal, as there are many significant players globally. However, here are some countries that consistently rank high in both oil and coal production, making them significant players in the global energy market:

Oil:

1. Saudi Arabia: The undisputed leader in oil production and export.

2. United States: A major producer and consumer of oil, with significant domestic reserves and production.

3. Russia: A major oil producer and exporter, playing a significant role in global energy markets.

4. China: The world's largest energy consumer, with growing oil production and imports.

Coal:

1. China: By far the world's largest producer and consumer of coal.

2. India: A major producer and consumer of coal, with growing demand.

3. United States: A significant producer and consumer of coal, though its production has been declining in recent years.

4. Australia: A major exporter of coal, with significant reserves.

Important Note: This list is not exhaustive and other countries like Canada, Indonesia, and Brazil are also major producers of either oil or coal. The energy landscape is constantly evolving, and production figures can fluctuate due to various factors.