HOUSTON, March 27 (Reuters) - Royal Dutch Shell Plc's275,000 barrel per day (bpd) joint-venture Deer Park,Texas, refinery may shut down over the weekend if crude oiltankers don't reach the plant by the end of the week, saidsources familiar with plant operations on Wednesday.
The refinery has been operating with crude stored on-sitesince a chemical spill on Friday choked off the upper HoustonShip Channel, the sources said.(Reporting by Erwin SebaEditing by Chizu Nomiyama)