Mobil
 

Following the break-up of Standard Oil in 1911, the Standard Oil Company of New York, or Socony, was founded, along with 33 other successor companies. In 1920, the company registered the name "Mobiloil" as a trademark.

Henry Clay Folger was head of the company until 1923, when he was succeeded by Herbert L. Pratt. Beginning February 29, 1928 on NBC, Socony Oil reached radio listeners with a comedy program, Soconyland Sketches, scripted by William Ford Manley and featuring Arthur Allen and Parker Fennelly as rural New Englanders. Socony continued to sponsor the show when it moved to CBS in 1934. In 1935, it became the Socony Sketchbook, with Christopher Morley and the Johnny Green orchestra.

In 1931, Socony merged with Vacuum Oil to form Socony-Vacuum.[3]

In 1933, Socony-Vacuum and Jersey Standard (which had oil production and refineries in Indonesia) merged their interests in the Far East into a 50-50 joint venture. Standard-Vacuum Oil Co., or "Stanvac," operated in 50 countries, including East Africa, New Zealand and China, before it was dissolved in 1962.