The contrast between /o/ and /u/ in Michif is complex. There is no phonemic contrast in words of Cree origin, but there is in words of French origin (li pu 'the louse', li po 'the skin'). However, the vowels have a wide range of pronunciations.
Rosen (2007: 156) atuskheew 'he works' with the lower mid back rounded vowel ʊ.