Experiments are carried out to determine simultaneous one-dimensional spatial concentration distribution of spilled petroleum in three soils (sandy, loamy and topsoil) in the horizontal and vertical directions. It is shown that the horizontal spread is very slow and the volume of petroleum spilled has minimal effects on the extent of spread in the horizontal direction. The distance migrated in the vertical (downward) direction increases significantly as the volume of spilled oil increases. The extent of spread of spilled oil in the horizontal and vertical directions is highest in sandy soil, followed by top soil, and least in loamy soil.