oil pressure dropped, stalled out and then fuel pump quit

[Dstokes758]

I just bought this 89 jeep comanche. Iran fine everything was good that I went to put a little bit of oil in it because the valve covers leaking gasket was leaking and I seen a little bit of milky oil in the rocker arm so I said oh no I've blown head gasket. so I check the oil no water on the dipstick. I'll pull one spark plug at a time to see if water comes out of the block as it turned over and that was a negative.put a new valve cover gasket on it, changed the oil, drove about 6 miles when I had a drop of oil pressure when I pulled up to a red light. I kept it going by having to keep my foot on the gas. It completely died out and the fuel pump quit entirely. Can someone please tell me what's going on?

[ftpiercecracker1]

Your off to a good start giving us the year, but we need to know what motor you have. (4.0, 2.5, 2.8)

 

What does it do when you turn the key? Any clicking or just dead silence?

 

What leads you to believe the fuel pump quit entirely?