Exhibit 24
LIMITED POWER OF ATTORNEY
Know all by these presents, that the undersigned officer and/or director of National Fuel
Gas Company (the "Company") hereby constitutes and appoints Paula M. Ciprich,
Sarah J. Mugel, Michael W. Reville and James P. Baetzhold, or any of them, the undersigned's
true and lawful attorneys-in-fact to:
(1) execute for and on behalf of the undersigned SEC Forms 3, 4, 5 and 144 reporting the
undersigned's holdings of and transactions in Company securities, in accordance with the
Securities Act of 1933, the Securities Exchange Act of 1934 and the rules thereunder, all
as amended;
(2) do and perform any and all acts for and on behalf of the undersigned which may be
necessary or desirable to complete and execute, manually or electronically, any such
Forms 3, 4, 5, or 144, and timely file any such form with the United States Securities and
Exchange Commission and any stock exchange or similar authority; and
(3) take any other action of any type whatsoever in connection with the foregoing which, in
the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally
required by, the undersigned, it being understood that the documents executed by such
attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be
in such form and shall contain such terms and conditions as such attorney-in-fact may
approve in such attorney-in-fact's discretion.
The undersigned hereby grants to each such attorney-in-fact full power and authority to
do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done
in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes
as the undersigned might or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in fact, or such attorney-in-
fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of
Attorney and the rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not
assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply
with the Securities Act of 1933 or the Securities Exchange Act of 1934, as amended.
This Power of Attorney supersedes any prior power of attorney executed by the
undersigned with respect to the matters set forth herein.
IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney to
be executed effective as of March 9, 2017.
Signature: /s/ A. M. Wegrzyn
Name: A. M. Wegrzyn
