I tend to agree with most other comments here. Running out of fuel is the least likely purely on chance.
More likely running out of fuel would cause an off airport forced landing. Too unliklely but not impossible for the fuel to pick short finals to run out.
Fuel starvation is another matter as there were some double engine failures on the Golden Eagle caused by the fuel pumps going into the hi setting and causing both engines to fail. I believe the 340 as well as the 303 had the same pumps?
Dont know if the Navajo has such problems!
Failure to extend the Gear normally or by emergency gear extension methods would mean that the pilot would likely cut both engines to save shock loading once assured of landing on the runway or grass.
Pace