If the surface is bare wood then I suggest Teak Oil - a mixture of Tung Oil - Boiled Linseed Oil and mineral spirits as a thinner.
Shop around for these oils - small volumes can be prohibitively expensive
I have used danish oil but I don't like the way it tends to sit on the surface of the wood - teak oil is quicker drying and soaks in well - good for outdoor furniture too - and my kitchen table and chopping boards.
Go to Amazon and see how much the costs vary by volume and manufacturer.
Good luck...
Peccavi
June 2010