By Humeyra Pamuk WASHINGTON (Reuters) -The United States and European partners are exploring banning Russian oil imports, U.S. Secretary of State Antony Blinken said on Sunday, but stressed the importance of maintaining steady oil supplies globally. “We are now in very active discussions with our European partners about banning the import of Russian oil to our countries, while of course, at the same time, maintaining a steady global supply of oil,” Blinken said in an interview on NBC’s “Meet the Press” show. Blinken, who is currently on a trip across Europe to coordinate with allies against th…