Brent crude futures fell a second straight day on Tuesday as concerns about curbed demand for petroleum were fueled by worries over the euro zone economy and U.S. budget talks designed to avert mandated tax increases and spending cuts.

Brent January crude fell $1.05, or 0.95 percent, to settle at $109.87 a barrel, having traded from $109.31 to $111.36. (Reporting by Robert Gibbons; editing by John Wallace)