Better-than-expected earnings such as from 3M and Siemens as well as a rebound in oil prices helped bolster equities on both sides of the Atlantic overnight.
Oil prices surged amid optimism about the potential for a deal to reduce the global glut. Iraq's oil minister said Saudi Arabia and Russia-the world's top oil producers-are now more flexible about co-operating to curb output.
"This flexibility should be finalised, and we should hear some solid suggestions coming from all parties," Abdul Mahdi told reporters at a conference in Kuwait City, according to Bloomberg.
Brent crude rose more than 5 percent to US$32.13 a barrel.
"The need for a reduction in output is clear - as it has been to us for the past 18 months - but it remains uncertain whether Saudi Arabia and its allies within OPEC are ready to return to the bargaining table," Tim Evans, energy futures specialist at Citi Futures wrote in a note, according to Reuters.