Answer
A - CLC 92 - “Oil” means any persistent hydrocarbon mineral oil such as crude oil, fuel oil, heavy diesel oil and lubricating oil, whether carried on board a ship as cargo or in the bunkers of such a ship.
Bunker- "Bunker oil" means any hydrocarbon mineral oil, including lubricating oil, used or intended to be used for the operation or propulsion of the ship, and any residues of such oil.
CLC 92 - “Owner” means the person or persons registered as the owner of the ship or, in the absence of registration, the person or persons owning the ship. However in the case of a ship owned by a State and operated by a company which in that State is registered as the ship’s operator, “owner” shall mean such company.
Bunker - "Shipowner" means the owner, including the registered owner, Bareboat charterer, manager and operator of the ship.