Expansions by U.S. refiners might not come soon enough to keep crude prices afloat in 2015, as the companies rush to add capacity to process more shale oil, Credit Suisse says. Bloomberg News This year, the market has managed to stave off threats of an oversupply by processing more oil and importing less. As crude production keeps rising, the challenge will be to keep prices from tanking next year. “2015 looks a slightly more risky year for U.S. crude prices versus Brent than 2014,” Credit Suisse says. Brent is the global oil benchmark. Despite growing production, the benchmark U.S. oil price has traded just $7.68 a barrel below Brent, on average, this year, up from an average discount of $10.59 a barrel in 2013, according data provided by FactSet. The reason: New pipelines cleared bottlenecks, allowing oil supplies to more easily reach refineries on the Gulf Coast. […]