stotman,
The pictures are a tad dark, but it looks like the overflow tube on your center oiler is broken off. While it isn't real necessary to repair it, if you're industrious, you could remove the busted piece of tube and solder a new tube in.
This would involve removing the center oiler, so it might be more trouble than it's worth. More opinions will be coming on this I'm sure. It will work fine the way it is.
Stuart