source:[1] 3 Reasons UNP is Risky and 1 Stock to Buy Instead (https://stockstory.org/us/stocks/nyse/unp/new ...)[2] Union Pacific (UNP) Research Report (https://stockstory.org/us/stocks/nyse/unp ...)[3] Union Pacific (UNP) Revenue 2005-2025 - Stock Analysis (https://stockanalysis.com/stocks/unp/revenue/ ...)