The Red Sea and Persian Gulf.
The oil reserves are found in or bordering the Persian Gulf. This body of water is also used to transport the oil to other counties.
The 12 OPEC contries control 79% of the worlds crude reserves and 44% of the worlds crude oil production.
Russia has the largest coal reserves in the world. It has 1 third of the worlds coal reserves.
Chile
"Pakistan has world's largest copper reserves." It is actually Chile that has the largest copper reserve.
Russia and China
Saudi aribia
in Siberia
Persian Gulf
Saudi Arabia with proven oil reserves of 264,600,000,000 barrels of oil.
Saudi Arabia
Because it is out of sight and therefore immeasurable with any precision.