Soft hides are used for tailoring and currently beeing sold at 110%.
Animal oils has the following average prices:
Materials : Natural Materials : Animal Adrenal Gland Oil (104.23% of TT value)
Materials : Natural Materials : Animal Eye Oil (99.93% of TT value)
Materials : Natural Materials : Animal Heart Oil (150.00% of TT value)
Misc Items : Animal Parts : Animal Kidney Oil (100.98% of TT value)
Materials : Natural Materials : Animal Liver Oil (100.92% of TT value)
Materials : Natural Materials : Animal Muscle Oil (160.88% of TT value)
Materials : Natural Materials : Animal Oil Residue (100.27% of TT value)
Materials : Natural Materials : Animal Pancreas Gland Oil (100.16% of TT value)
Materials : Natural Materials : Animal Spleen Oil (100.33% of TT value)
Materials : Natural Materials : Animal Thyroid Gland Oil (100.20% of TT value)
That is when they are sold in the ingame auction. Most of it is TT-food.
If you evern wonder about any prices, check
http://www.peauction.com
And oh, most oils are used for the new limited blueprints.