Recognized for Climate Change Transparency with CDP Leadership Positions

Omaha, Neb., September 24, 2013 – Union Pacific Railroad achieved its best-ever performance in CDP's Global 500 and Standard & Poor's 500 (S&P 500) climate change 2013 reports. The railroad's carbon disclosure score is 98, out of a possible 100, and in the top 10 percent of all companies in the Global 500 and S&P 500 samples, securing Union Pacific a leadership position on the Global 500 and S&P 500 Climate Disclosure Leadership indexes.

Union Pacific is the only North American railroad to achieve a place on both indexes. Its carbon disclosure score is an 11-point improvement over last year. The company also attained a B rating in CDP's performance band.

"Union Pacific's annually improving CDP performance indicates our solid understanding of climate change-related issues affecting the company and our continued dedication to taking data-driven actions that reduce our environmental impact," said Bob Grimaila, Union Pacific vice president-Safety, Security and Environment. "Environmentally sustainable business practices are an essential component of Union Pacific's ongoing commitment to safely deliver the goods American families and businesses use every day."

Just last month, Union Pacific unveiled its Arrowedge® production version, a new employee-designed aerodynamic technology for fuel and locomotive emissions reductions on double-stack intermodal freight trains. The Arrowedge® is the latest innovation in Union Pacific's continual efforts to design, build and implement fuel- and emissions-reducing technologies.

Key 2012 environmental achievements include:

• Eliminating an estimated 33.5 million tons of greenhouse gases from shipments by customers who move their products by rail instead of trucks.
• Purchasing 200 new fuel-efficient locomotives, replacing older, less fuel-efficient units.
• Diverting from landfills an estimated 75 percent of the company's waste.

Additional information about Union Pacific's environmental efforts can be found in the company's Sustainability and Citizenship Report and on its website.

About CDP

CDP, formerly known as the Carbon Disclosure Project, is an international, not-for-profit organization providing the only global system for companies and cities to measure, disclose, manage and share vital environmental information. CDP works with 722 institutional investors with assets of $87 trillion, to motivate companies to disclose their impacts on the environment and natural resources and take action to reduce them. CDP is believed to hold the largest collection globally of primary climate change, water and forest-risk commodities information, and puts these insights at the heart of strategic business, investment and policy decisions.

About Union Pacific

Union Pacific Railroad is the principal operating company of Union Pacific Corporation (NYSE: UNP). One of America's most recognized companies, Union Pacific Railroad links 23 states in the western two-thirds of the country by rail, providing a critical link in the global supply chain. From 2007-2012, Union Pacific invested $18 billion in its network and operations to support America's transportation infrastructure, including a record $3.7 billion in 2012. The railroad’s diversified business mix includes Agricultural Products, Automotive, Chemicals, Coal, Industrial Products and Intermodal. Union Pacific serves many of the fastest-growing U.S. population centers, operates from all major West Coast and Gulf Coast ports to eastern gateways, connects with Canada's rail systems and is the only railroad serving all six major Mexico gateways. Union Pacific provides value to its roughly 10,000 customers by delivering products in a safe, reliable, fuel-efficient and environmentally responsible manner.

Union Pacific media contact: Elizabeth Hutchison at 402-544-8433 or eehutchi@up.com

• www.up.com
• www.up.com/aboutup/corporate_info/sustainability
• www.facebook.com/unionpacific
• www.twitter.com/unionpacific

More Information

Resources

• CDP S&P 500 Climate Change Report 2013
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• CDP Global 500 Climate Change Report 2013
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• Union Pacific Unveils New Aerodynamic Technology for Double-Stack Intermodal Trains
  
• Union Pacific Sustainability & Citizenship Report 2012
  

The statements and information contained in the news releases provided by Union Pacific speak only as of the date issued. Such information by its nature may become outdated, and investors should not assume that the statements and information contained in Union Pacific's news releases remain current after the date issued. Union Pacific makes no commitment, and disclaims any duty, to update any of this information.