Exercise 6-37 Process Costing (LO 6-3) Graham Petroleum produces oil. On May 1, it had no work-in-process inventory. It started production of 204 million barrels of oil in May and shipped 189 million barrels in the pipeline. The costs of the resources used by Graham in May consist of the following: Materials Conversion costs (labor and overhead) $ 2,288 million $ 3,340 million Required: The production supervisor estimates that the ending work in process is 80 percent complete on May 31. Compute the cost of oil shipped in the pipeline and the amount in work-in-process ending inventory as of May 31. (Do not round intermediate calculations. Enter your answers in millions. For example, enter "1" instead of "1,000,000".) Cost of oil shipped in the pipeline million Work-in-process ending inventory million