This work analyzed of crude oil based nanofluid of Al2O3, Cu, SWCNTs (single walled carbon nanotubes) the mass transfer in two dimensional MHD of incompressible steady, viscous and electrically conducting in the presence of magnetic field over a flat plate under various slip conditions. The result was obtained using similarity transformation and the fourth-fifth order Runge Kutta Fehlberg technique with shooting method using Maple 18. The velocity profile and the nanoparticle concentration were plotted for both low and high velocity slip conditions. Various effects of parameters were tested on the rate of skin friction and mass transfer. The effect that involves the magnetic parameter M, buoyancy ratio G, Schmidt number Sc, velocity slip parameter and nanoparticle volume fraction were analyzed. It was found that magnetic field with Grashof number and Schmidt number parameters are dominant on momentum and concentration dimensionless parameters. Copper with velocity slip 0.1 was higher shear stress then other materials as well as, for SWCNT with velocity slip 1.0 was lower shear stress. Furthermore, copper with velocity slip 0.1 is higher of mass transfer than other materials as well as oxide aluminium is lower compared to other materials with velocity slip 1.0.