One of the Chermayeff & Geismar's most far-reaching corporate design programs was for Mobil Oil, a multinational corporation operating in over a hundred countries. The trademark, executed in an elemental geometric sans serif typeface, is the ultimate in simplicity. The word ''Mobil'' is executed in five vertical strokes, the angle of the ''M'', and two circles. The name became the trademark, with the round, red ''O" separating this word from the visual presentation of other words. This emphasis on the circle is projected as a visual theme throughout the identification program and in the design of Mobil gas stations.