This version corrected that the plan to reduce the danger would separate volatile gases from crude before the oil is loaded onto tanker cars.
An earlier version of this story misstated the name of the medical college that was supported by Sandy Weill.
This article has been updated to show that U.S. employers planned to cut payrolls by 40,298 in April.
This version corrected the year Lay and Skilling were convicted to 2006.
This version corrected the spelling of the last name of JMP Securities' Alex Gauna.
This version corrected that Caterpillar stock rose in premarket trading.
This article has been updated to reflect that 17 percent of Novozymes' sales were in its bioenergy division, in the first quarter of 2014.
This story has been updated to reflect that Novartis' animal health division will be sold for around $5.4 billion.
This story has been updated to reflect the correct courtroom for Chatwal's appearance.