0538 GMT - Developments in the Middle East will likely remain the key source of uncertainty for bond markets, LBBW's Elmar Voelker says in a note. "The consolidation of long-term bond yields in recent days has coincided with a temporary stabilization of energy prices at high levels," the senior fixed-income analyst says. For the time being, however, LBBW sees no reason to assume that the situation in the Gulf will ease soon. A damaged Saudi oil pipeline might eventually resume partial operations sooner than initially feared, which has slowed the rise in oil prices for now, but efforts to reopen the Strait of Hormuz appear to remain at a standstill, he says.