Fed Taxes and no deductions

I made $72,572 last year with $8943 taken out in taxes.   I'm concerned that I am told I owe $44 (not worried about paying that).   I thought I would have received a tax refund.  I claimed 0 exemptions on my paycheck,  and had a tiny bit of interest income ($150).  No deductions at this point.  I'm concerned for next year and looking for advice if the first/second sentence sounds correct and should I expect a hefty tax bill next year?   Thank you...only been in the full time workforce for 2 years.