Just murder the sea pickles and get so much oil that America will want to know your location

Kill basilosaurus= infinite oil

Dung beetles make some oil of ya give them poop.
Tame beetle+poop=oil

In the south west part of herbibore island there's a lot of trilobites, you can go down there with a spino and you will get chitin, oil, and pearls, is not the most efficent way but is the safest

When you need oil on abberation, you should go to the spine not the surface, the surface will burn you and you only get like 3 oil for it, but in the spine it will give you hundreds of it. Or just use your dung beetle I don’t care anymore.

Mining drill and a good wyvern is my favorite way the shiny black rocks along north coast and on icebergs on the island will yeald decent amount of oil and quickly much better then swimming to bottom of ocean

Just get a water creature go underwater with it and there will be oil rocks then you’ll get oil

basilosaurus once tamed will produce oil

Whales make a lot of oil just make sure it has plenty of raw FISH meat

If you live at the snow biome and have a argentavis just go to the Water there you find Black Stones of Oil.

Killing tek creatures gives you oil.

In genises I recommend building a Ocean platform and putting like 4 x basilorsauruses there or tusos(giant squid) and each one will produce 20 oil for you but watch out it quickly spoils and its called ink but it works the same as oil

Get a cacha to get a bunch of oil

There are oil rocks at the bottom of the ocean in Rag. Just make sure to watch out to sharks. Also, if you can find an oil rig in a drop, much easier harvesting.

Baliosaurus farming is the best

Donut take oil cause America will come for you

On Ragnarok there are some oil veins up in the snow above viking Bay. You can put up to three oil wells there. Easily pull 50k oil if you let them run for a day or two.

There are many ways to obtain oil. My personal favorite is, to run around and tame a few Tek creatures. Kill their babies or the wild ones and harvest them with a chainsaw, if you don’t have one use a hatchet. If you need oil over a long timespan just tame a few Tek creatures an let them breed. Kill their babies and youll get a lot of oil and some great side products like meta scrap, wich is a great equivalent to metal. If you don’t have the time or nerves to do that you can just go to the ice biome and destroy the big black rocks (our intended) and youll get a lot of oil in a short time (the only problem is the transportation of yourself and the oil from the ice biome to your base)

How do you use a chainsaw to get oil?