Culmen was an early French automobile manufacturer established around 1909 in Paris. The company was officially known as Sti des Motcurs a Gaz er d'lndustric Automobiles Otto. It produced a range of vehicles under the name "Oilmen," alongside other models branded as F.L and Otto.

The lineup included three distinct models, featuring a 9 horsepower single-cylinder engine manufactured by Otto, as well as two four-cylinder options developed by Chapuis-Dornier, which produced 8 and 10 horsepower from 1460cc and 1725cc engines, respectively. The 9hp model was positioned as a more affordable option, priced at 2500 francs for the chassis, while the four-cylinder models were priced higher at 3750 and 3950 francs.

All models were equipped with three-speed gearboxes and utilized shaft drive, sharing an identical wheelbase of 88.5 inches (2246 mm). The company offered various body styles, including open two- and four-seater configurations, as well as a coupe. Despite its brief existence, Culmen contributed to the early automotive landscape in France.