Truck turns over but will not crank

My 03 ford f50 5.4l rand out of oil. While it was
sitting in a parking lot. I came outside while the
truck was still running and my odometer was
nothing but dashes. I tryed putting it in reverse but
it would not move so I kill d the truck and it
wouldn't crank I added oil and tryed again , nothing.
I drained the oil and there was no metal shavings in
the oil. Checked all the fuses and they were all
good. I turn the key in the ignition but can't hear the
fuel pump kick on. Could it be the fuel pump it's s
of or is it something hung a lot more serious???