I don't know about the entire state, but the upper-class people, such as in Chicago, live pretty well.
Yes, there are oil wells in Illinois. The state has a long history of oil production, with well over 60,000 active oil wells currently operating in various parts of the state. Oil production in Illinois dates back to the 1800s and continues to be an important part of the state's economy.
Illinois is a state.
The white-tailed deer is official state animal of Illinois. The northern cardinal is official state bird of Illinois. The monarch butterfly is official state butterfly of Illinois. "State sovereignty, national union" is the official state motto of Illinois. Land of Lincoln is official state nickname of Illinois. Pumpkin pie is the official state pie of Illinois. "Illinois" is the title of the official state song of Illinois. The white oak is official state tree of Illinois.
"Illinois" is the title of the official state song of Illinois.
Goldrush apple is the official state fruit of Illinois.
"Illinois" is the title of the official state song of Illinois.
Illinois.
State of Illinois
There is no Illinois state cat.
They have an apple growing center.
Since Antarctica is not a state, not a country, and Illinois is a state, your answer must be Illinois.
Yes, "state" should be capitalized when referring to the state of Illinois. So it should be written as "Illinois State."