Biotechnology nurtures economy-Oil Plants

I am just researching on some of the plants especially the oil extracting plants as a biotechnology product in farm technology

I came across with these lists which are majorly used

1. Geranium
2. Patchouli
   
3. Vetivera
   
4. Palmrosa
   
5. etc..,

I am in particular use of the details for the cultivation of these plants.

Need your assistance of you guys in my research.