Mineral royalty income

I file single with the easiest turbo tax filing.  Where do I show my mineral royalty income.  I have tried for the past 3 years to input when doing my taxes, but it never worked.  I resolved that I didn't receive enough to have to report.  But then, I got a letter from the IRS that I owed penalties and fees for a previous year.  How do I correct this for last year and make sure I get this years included in Turbo Tax?