The oil market is pricing in a 30 percent chance of producers reaching a deal to cut output at OPEC’s meeting in Vienna, according to Goldman Sachs Group Inc. Global benchmark Brent crude may swing $6 a barrel on Wednesday, based on implied volatility for options contracts, analysts including Damien Courvalin and Jeff Currie said in a report Monday. Futures would rally into the low $50s a barrel and average $55 over the first half of next year if the group agrees to a cut, according to the bank. Failure to reach an accord would mean prices would average $45 a barrel through the summer. Brent crude for January settlement traded down 0.8 percent at $47.85 a barrel on the London-based ICE Futures Europe exchange by 6:37 a.m. local time. The difference between front-month futures and contracts five years out usually correlates strongly with global oil inventories in the […]