By Erwin Seba HOUSTON (Reuters) -Oil prices rose on Friday as Ukraine's drone attacks on Russia's energy infrastructure cut the country's fuel exports. Brent futures settled at $70.13 a barrel, up 71 cents, or 1.02$65.72 a barrel, gaining 74 cents, or 1.14%. Both benchmarks are set to register their biggest increases since mid-June. "Markets continued to be focused on the situation between Russia and Ukraine," said John Kilduff, partner with Again ...