SECTION 16 OF THE
SECURITIES EXCHANGE ACT OF 1934

POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS THAT I, Diane K. Duren,
Executive Vice President & Corporate Secretary of Union Pacific
Corporation, a Utah corporation (the "Company"), do hereby
appoint James J. Theisen, Jr., Trevor L. Kingston, Heather A.
Fredrick and Nicole M. Deardorff, and each of them acting
individually, as my true and lawful attorney in fact, each with
power to act without the other in full power of substitution,
to execute, deliver and file, for and on my behalf, and in my
name and in my capacity as an officer of the Company, a Form 3
and any and all Forms 4 or Forms 5 under Section 16 of the
Securities Exchange Act of 1934 and the rules and
interpretations promulgated thereunder, and any other documents
in support thereof or supplemental or amendatory thereto, with
respect to the ownership by or attributable to me, directly or
indirectly, of equity securities of the Company, or derivative
securities relating thereto, hereby granting to such attorneys
and each of them full power and authority to do and perform
each and every act and thing whatsoever as such attorney or
attorneys may deem necessary or advisable to carry out fully
the intent of the foregoing as I might or could do personally
or in my capacity as an officer, hereby ratifying and confirming
all acts and things which such attorney or attorneys may do or
cause to be done by virtue of this Power of Attorney.

IN WITNESS WHEREOF, I have executed this Power of Attorney as of
March 19, 2015.


/s/ Diane K. Duren
__________________________________
Diane K. Duren