yes they did on the midwestern
Oil and natural gas.
oil gold coal mining
rocksmineralswater
Gold Copper Oil Dimonds Coal Bronze
trees coal gold oil \
oil gold coal mining
Diamonds, Rubies, Emeralds, Gold, Oil, Coal.
it is wind tree oil coal and gold
They are both used for fire, but coal is hard, but it is black like oil. oil is, well, oily not completely like water and is considered as 'black gold'. Also depends on type of oil like veggie oil.
· Petroleum · natural gas · potash · coal · uranium, · copper, · zinc, · gold, · silver, · crude oil and have much coal. · Oil · rich soil
Oil, coal, rice, water, lumber, gold, and silver.
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