Oil's rhymes with:
boils, boyles, boylls, broyles, coils, doyle's, foils, oils, oleoyls, recoils, soil's, soils, spoils, toils, voiles, voyles
Oil's sounds like:
o'lague, oehlke, oelke, oils, olack, olague, olasky, olczak, oleg, oleksiak, oleksy, oleoyls, oles, oleske, olesky, olexa, olga, olick, olk, olkowski, olkowski's, ollie's, ollis, olokuei, olokuei's, olszewski, owls