The oil markets are looking to finish the year on the back foot, with oil prices falling again amid expectations of a supply glut and Russia-Ukraine peace talks reviving. Nearly half of oil executives in the Dallas Fed’s latest survey have reported that their companies’ outlooks have worsened in the current year compared with last year as low oil prices take a toll. “Decreasing oil prices are making many of our firm's wells noneconomic,” one executive said in the new survey. “Natural gas is becoming an expense to operators.…