If you combine this or any underwater platform mount you can make an actual oil rig with dunkleostrus to get oil and smelted on your platform mount if you dont have a platform mount an underwater cave works tio would recommend one next to a drop for better farming
Amazing dive and surfacing with this guy. I have 240 oxygen and i can get to the bottom of the ocean, get oil and pearls and be back to the surface with plenty of time to spare. It has a lot of health and can take on schools of low level megladons. My favorite dino so far!