U.S. crude settles lower as euro slips vs dollar

NEW YORK, March 18 (Reuters) - U.S. crude oil futures settled lower on Thursday, snapping a two-day advance, as the dollar strengthened and the euro remained under pressure amid concerns about Greece's debt problems.

Trading sources expressed caution about oil's recent rise, which may not be justified by fundamentals. An analyst report forecasting that OPEC exports would rise in the four weeks to April 3 also helped keep oil futures pinned to the downside.

On the New York Mercantile Exchange, April CLJ0 crude fell 73 cents, or 0.88 percent, to settle at $82.20 a barrel, trading from $81.68 to $82.85. (Reporting by Robert Gibbons)