By Arathy Somasekhar HOUSTON (Reuters) - Oil prices settled higher on Wednesday by more than $1 a barrel as investors worried about possible supply disruptions after Poland downed drones in its airspace and the U.S. pushed for new sanctions on buyers of Russian oil the day after an Israeli attack in Qatar, but a report showing swelling U.S. supplies capped gains. Brent crude futures settled up$1.10, or 1.7%, at $67.49 a barrel. U.S. West Texas Intermediate crude futures rose$1.04, or 1.7%, to settle at ...