Specifically, the oil content of fresh walnuts is about 65 grams per 100 grams, while the oil content of dried walnuts of the same weight is about 70 grams. Based on this data, it can be assumed that fresh walnuts have a higher oil content than dried walnuts.

However, it should be noted that these data may have some experimental errors and that dried walnuts have a relatively high oil content due to their dehydration process and lower moisture content.

In summary, according to the available nutritional database data, fresh walnuts generally have a higher oil content than dried walnuts, but the exact difference still needs to be considered in terms of experimental error and data sources.