Union Pacific Corporation UNP, based in Omaha, NE, is the largest railroad in North America providing rail transportation services across more than 20 states in the U.S. Union Pacific also connects with Canada's rail systems and is the only railroad, serving all the six major gateways to Mexico.Zacks Rank: Currently, Union Pacific has a Zacks Rank #4 (Sell) but that could change following the company’s earnings report which was just released. We have highlighted some of the key stats from this just-revealed announcement below:Earnings: Union Pacific reported better-than-expected earnings on lower costs. Earnings per share came in at $1.16, well ahead the Zacks Consensus Estimate of $1.09. Earnings declined 11% on a year-over-year basis.Revenue: Operating revenues of $4,829 million missed the Zacks Consensus Estimate of $4,901 million. Reduced freight revenues (down 14%) due to soft coal shipments hurt the top line.Key Stats to Note: Operating income in the first quarter witnessed a decline of 15% year over year to $1.7 billion. Operating ratio (defined as operating expenses as a percentage of revenues) improved 30 basis points year over year to 65.1%. During the quarter, the company bought back 9.3 million shares for $713 million.Check back later for our full write up on this Union Pacific earnings report later!Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days.Click to get this free report>>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report UNION PAC CORP (UNP): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research