Deed papers

Would anything in my original paperwork, when I purchased house and land, state whether or not I also have the mineral rights? Where would I find this information?

It may be hard to tell from the deed you received, in Oklahoma there is typically language that states "less and except easement and reservations of record… ’ if a previous owner reserved the minerals you would not receive any. If your seller has and is reserving minerals it would likely say, “less and except oil, gas, or other minerals…”