What about Oxford in Mississippi?
God no. Oxford is full of Confederate-flag waving racists who went to segregationist academies and refuse to stop chanting "The South Will Rise Again" when the football team and Ole Miss (which is what slaves called the master's wife. Seriously) administration begged them not to. And let's not forget the on-campus riots there when Obama was reelected, the Klan rallies, etc.
Starkville and Hattiesburg would be a lot more likely than Oxford, but still no. From the results
here, it looks like Obama narrowly won the city of Starkville, which is 64% white, so that leads to him probably getting around 1/3 of the white vote there, which is is much higher than the ~11% of the white vote he won statewide. It's worth noting that Mississippi State isn't actually within the city limits of Starkville, and most students on campus apparently aren't registered to vote there (less than 1,000 votes combined in the 2 precincts that cover campus and the area around it), so it would probably be higher if all students' votes were included in Starkville's total. Definitely not enough to drag it over 50% of the white vote though.
If you want to find a Mississippi city where Obama won the white vote, check some results in Benton or Marshall counties -- you
might find one there.