Company: Union Pacific Corp

Union Pacific investors have rejected shareholder proposals that dealt with executive ownership of the railroad's stock and the company's lobbying.

Warren Buffett worked to reassure shareholders that he's feeling good after his recent prostate cancer diagnosis, and that Berkshire Hathaway is ready to replace the revered 81-year-old investor when the need arises.

Plans for a nationwide, state-of-the-art railroad safety system, inspired by a fatal crash in 2008, are meeting with resistance, due to a fierce debate over its effectiveness and business benefits.

The end of the Keystone Pipeline project puts the U.S. at a competitive disadvantage and was a personal disappointment to the chief executive of railroad Union Pacific.

Major U.S. freight railroads said on Thursday they had dodged the imminent threat of a national rail strike by reaching tentative contract agreements with two big unions.