Two-probe electronic transport measurements on a Molybdenum Disulphide (MoS2) surface were performed at low temperature (30 K) under ultra-high vacuum conditions. Two scanning tunneling microscope tips were precisely positioned in tunneling contact to measure the surface current-voltage characteristics. The separation between the tips is controllably varied and measured using a high resolution scanning electron microscope. The MoS 2 surface shows a surface electronic gap (ES) of 1.4 eV measured at a probe separation of 50 nm. Furthermore, the two- probe resistance measured outside the electronic gap shows 2D-like behavior with the two-probe separation. © 2013 AIP Publishing LLC.