NEW YORK (MarketWatch) -- Shares of petroluem producers rose with the broad equities market, but oil service firms lagged on Wednesday. The NYSE Arca Oil Index XX:XOI +0.22% rose 0.2%. The NYSE Arca Natural Gas Index XX:XNG -0.17% traded about flat. The Philadelphia Oil Service Index OSX -0.63% slipped 0.1%. The Dow Jones Industrial Average DJIA +0.16% rose 44 points.
