BUZZ-Oil and gas producers, service providers: Oil prices rise
** Oil stocks rise 9-21 pct as crude prices jumped about 4 pct after the United States cut output forecasts and Russia, Saudi Arabia and other big producers signaled joint action to support the market
** Brent up 4.3 pct at $51.38/barrel; U.S. crude up 1.82 pct at $48.09/barrel
** Stone Energy Corp up 23 pct, Baytex Energy Corp up 17.6 pct, Laredo Petroleum Inc up 13.5 pct, GulfMark Offshore Inc up 15.7 pct, Parker Drilling Co up 11.4 pct, Linn Energy LLC up 7.8 pct
** Diversified energy company Unit Corp raises its full-year production guidance for its E&P segment to 6-8 pct from 2-4 pct
** Industry leaders also rise: ConocoPhillips up 4.3 pct, Chevron Corp up 4 pct, Exxon Mobil Corp up 1.6 pct, Schlumberger Ltd up 2.7 pct, Halliburton Co up 4.2 pct, Anadarko Petroleum Corp up 2.8 pct
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