I don't know who made what - I'm guessing Minnesota and Wisconsin are solidly positive. Michigan should be.
The only one I'm certain about is Penn State - they've announced that their program is over $1M in the black.
I will never believe any program about what numbers they report, either positive or negative. Some programs want to report positive numbers because it shows it's not a waste of resources. Others purposely report negative numbers so they can show these sports aren't making a ton of money. A lot also depends how conference/media revenue is reported. Some schools report prorated payouts from the league to the individual sports themselves, whereas others may not. Penn State might be making money, but they also might not and are just reporting conference revenue more heavily to their hockey program than other schools do.
At Ohio State, an interesting thing is that I know conference revenue is not reported with the individual sports, where some schools do prorate it individually, so their numbers will always look worse when examining a single sport. Interestingly, the debt load on the Jerome Schottenstein Center is paid by the University's general fund and operated by the university, but athletics charges rent from the basketball programs and hockey programs to service the debt. Oddly, though, the money isn't removed from athletics, it's simply removed from the program budgets. Very funny accounting with some of these schools.