Should I oil my wood utensils

This comes down to a few parameters. Wood species, longevity, and preference

There are many species of wood that are oily. Teak, mahogany, bamboo, and ipa are a few woods that have an excessive amount of oil in the surface. Other species like oak, cherry and pine are drier woods and require oiling to protect the wood structures from the harsh washing required for wood utensils and cutting boards

Preference is simply about how you want your wood to look. If you like a nice shiny finish then oiling is important, if not then leave them to dry out.

Lastly is longevity of your wood utensils A little oil goes a long way to helping your utensils last years as well as preventing food particles from soaking into your wood.

Personally, I have always found wood to look better when oiled. For this reason I use the following guidelines for oiling.

Once a day for a week, once a week for a month, and once a month from that point on.

Mineral oil, olive oil (highly used utensils) or a good nut oil work great to build a solid surface and create a beautiful sheen.