What is the fastest method to acquire olive wood?

Solution 1:

The best method and quickest method in the game:

• Travelling between blacksmiths and buying olive wood

When travelling between backsmiths they will not always stock up, however, you can expect about 4 out of 5 to stock it and you'll generally get 100+ stock

best alternative method:

• Raid and battle boats

Not as efficient as trading.

Other ways to obtain olive wood:

• Complete contracts with a chance of getting olive wood

• Pillage nation chests with a chance of getting olive wood

Personally, when I was trading I would simply continue as normal completing quests and any blacksmith that I encountered or was "only slightly" out of the way would be where I bought my olive wood, although I'm guessing you recently hit level 25 which is why this is now your focus.