The regime ended up crossing the Euphrates at Mazlum, a little to the north of where I'd expected, and the Tiger Forces are pushing north, not south. No movement from the Kurds. It looks like Assad's goal is to deprive the Kurds of all of the oil fields, even the one northwest of Deir-as-Zor, which would require a second river crossing. I'm guessing that tomorrow we'll see the regime push from Mazlum to the adjacent Tabiyah oil fiels, and then probably north to cut the N-7. The result is total strategic failure for the Kurds.