a mixture of a first heavy oil fraction and {TAIL ~ a deasphalting residue} from solvent deasphalting of a second feedstock fraction, the first heavy oil fraction having a T5 boiling point of at least 350° C., the second feedstock fraction having {HEAD ~ a T5 boiling point} of at least 350° C., 
a mixture of a first heavy oil fraction and { TAIL ~ a deasphalting residue } from solvent deasphalting of a second feedstock fraction , the first heavy oil fraction having a T5 boiling point of at least 350 ° C. , the second feedstock fraction having { HEAD ~ a T5 boiling point } of at least 350 ° C. ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH