Oil falls after Qatar meeting disappoints; stocks up

By Caroline Valetkevitch NEW YORK (Reuters) - Oil prices slumped on Monday after producers failed to agree on a plan to curb global supply at a meeting in Qatar, while world stock markets edged higher. Wall Street and European stocks rebounded modestly after earlier losses spurred by the failure of major oil-producing nations to agree on an output freeze in an oversupplied world market. The decline in oil prices damped down a more optimistic tone that had prevailed for much of the past week.