* Coal: Yes, Nebraska has coal reserves, primarily in the eastern and southeastern parts of the state. However, coal production is relatively low compared to other states.

* Natural Gas: Yes, Nebraska has natural gas reserves, and production is growing.

* Oil: Yes, Nebraska has oil reserves, although production is limited.

* Copper: No, Nebraska does not have significant copper deposits.

* Cotton: Yes, Nebraska is a cotton-producing state, but it's not a major producer compared to the southern states.

In summary: Nebraska has some natural resources, but it's not a major producer of any of them.