*Restart expected to begin next week-sources. HOUSTON, Nov 28- Motiva Enterprises plans to begin restarting a crude distillation unit at its 600,000 bpd Port Arthur, Texas, refinery next week after it was shut in June to repair massive corrosion from a chemical leak, sources familiar with the refinery said on Wednesday.
The US Department of Justice intends to prove at trial that gross negligence or willful misconduct by BP caused the 2010 Deepwater Horizon disaster in the Gulf of Mexico, government lawyers have said, in the clearest statement yet that they are seeking the maximum possible penalties from the British oil group. The FT reports.