Oil use: Air transport Vs. all other?

[robertbartsch]

Anyone know what percentage of all oil that is used for transportation is used for air transportation/travel?

I would assume, as time goes by, that many forms of ground transport (cars, buses, trains, ships, etc.) will become greener and use solar or wind generated electricity for power, but I assume there is no future technology that is planned to replace jet engines that run from kerosene/jet fuel (e.g., oil).

Thanks.