"Bitumen" is still the preferred geological term for naturally occurring deposits of the solid or semi-solid form of petroleum.
"bɪtˈuːmɛn" ɪz stˈɪl ðə pɹɪfˈɜːd dʒˌɪəlˈɑːdʒɪkəl tˈɜːm fɔːɹ nˈætʃɚɹəli əkˈɜːɹɪŋ dᵻpˈɑːzɪts ʌvðə sˈɑːlɪd ɔːɹ sˈɛmaɪsˈɑːlɪd fˈɔːɹm ʌv pətɹˈoʊliːəm.