Refinery processes, systems, and compositions for making an aromatic blending component for fuel oil, and a fuel oil blend using the same. Valuable hydrocarbons like kerosene can be reduced or eliminated from fuel oil blends by adding certain aromatic blending components derived from the aromatic bottoms stream of an aromatic recovery complex. The aromatic blending component can be used in lieu of more costly hydrocarbon streams to decrease the overall viscosity of the fuel oil blend without adding sulfur.