Chevron Corp ( CVX.N ) has held talks to acquire Pasadena Refining System Inc (PRSI), a Texas oil refining unit of Brazilian state-run oil firm Petroleo Brasileiro SA ( PETR4.SA ), three people familiar with the matter said this week.U.S. oil companies are looking to expand refining operations to handle rising volumes of crude flowing from the country’s shale fields. A deal for PRSI would give Chevron an oil refinery that can process about 110,000 barrels-per-day of light crude. Chevron is also discussing a gas liquids processing joint venture with Kinder Morgan Inc ( KMI.N ), largest energy infrastructure provider in North America, two of the sources said. Kinder Morgan operates a nearby plant that separates gas liquids into ethane, propane and […]