Well this might be a start, I tried searching for tobacco essential oil.
I know other sources have been posted on here already but I can't find them at the moment and these might be some new ones:
Pure Absolute Oils, Pure Rose Ottos & Precious Essential Oils : Pure Absolute Essential Oils: The Collection of Rare and Precious Pure Essential Oils, Pure Absolute Essential Oils, Pure Lotus Absolute Oils, Pure Rare, Essential Oils & Pure Rose Ottos
100% pure Tobacco Absolute Oil, imported from France (net 7.5 ml = ¼ Oz.)
Also see:
Essential Oils S-Z: Samara Botane Online
15322115 TOBACCO ABSOLUTE 15 ml
15322102 TOBACCO ABSOLUTE 2 ml
15322105 TOBACCO ABSOLUTE 5 ml
08321 TOBACCO CONCRETE
11104105 TOBACCO LEAF 5 ml
15104105 TOBACCO LEAF ABS 5 ml (nicotine free)
AND
http://www.gritman.com/DataSheets/Essential_Oils_Shop/Tobacco Absolute.html
Tobacco Absolute Blond (Nicotiana tabacum)
GCC: LC-GP Premium Bulgaria
Retail: $37.04 1/6 oz.
GENERAL INFORMATION: There is an absolute without nicotine which is called blond. There is an essential oil from CO2 extraction and steam distilled, but they have nicotine unless rectified. The nicotine seems to be the offending constituent, therefore the absolute seems safer here. There are nearly 100 species of Nicotiana.
Tobacco absolute (Nicotiana tabacum)
Tobacco absolute is a dense liquid with dark-brown to black-brown color with thin layer pale brown with sometimes greenish nuance and intensive aroma of tobacco. It is obtained from tobacco concrete. Aroma: Of tobacco, with flowery and spicy note.
Nicotiana tabacum (Solanaceae) Virginia Tobacco
The tobacco genus, Nicotiana, belongs to the nightshade family and consists of nearly 100 species, mainly from tropical and subtropical America. The most important species, N. tabacum, or Virginia tobacco, has leaves of 30-50 cm, and large pink flowers. It is not known as a wild plant. Another closely related species, N. rustica, or Rustica tobacco, is also extensively grown.
I think that unless one were a commercial manufacturer importing from someplace like India this stuff is hard to get in quantities useful to us as individuals with all the delightful varieties advertised, e.g. Burley, Oriental, Virginia... anyone?