At least, that’s the way I read the oracle.
Update Confirmed. The nets called it for Obama before any actual results were in, which must mean that it was a substantial win. He seems to have gotten 91% of the black vote and 28% of the white vote. The racial split was 52-48 white, with lots of Republicans crossing over to vote for Clinton. (Racists or dittoheads? We report, you decide.)
That should give Obama just under 58% of the total, and 19 of the 33 delegates. I had conservatively figured 55% (18 delegate votes), so The Math just got a tiny bit easier.
Second update It gets better: 60%-38%. That ought to mean 20 delegate votes.