Sec Form 4 Filing - TANSKI RONALD J @ NATIONAL FUEL GAS CO - 2017-11-30

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person TANSKI RONALD J 2. Issuer Name and Ticker or Trading Symbol NATIONAL FUEL GAS CO [ NFG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) 6363 MAIN STREET 3. Date of Earliest Transaction (MM/DD/YY) 11/30/2017 (Street) WILLIAMSVILLE, NY14221 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 11/30/2017 M 15,000 A $ 47.37 329,721 D Common Stock 11/30/2017 D 12,081 ( 1 ) D $ 58.82 317,640 D Common Stock 11/30/2017 M 75,000 A $ 29.88 392,640 D Common Stock 11/30/2017 D 38,100 ( 2 ) D $ 58.82 354,540 D Common Stock 24,271 ( 3 ) I 401(k) Trust Common Stock 2,957 ( 4 ) I ESOP Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Appreciation Right $ 47.37 11/30/2017 M 15,000 02/20/2009 02/20/2018 Common Stock 15,000 $ 0 0 D Stock Appreciation Right $ 29.88 11/30/2017 M 75,000 12/22/2009 12/22/2018 Common Stock 75,000 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other TANSKI RONALD J 6363 MAIN STREET WILLIAMSVILLE, NY14221 X President & CEO Signatures J. P. Baetzhold, Attorney in Fact 12/04/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On November 30, 2017, the reporting person exercised a stock appreciation right with respect to 15,000 shares of Common Stock of the Company. In connection with this exercise, the reporting person was deemed to have sold back to the Company shares of Common Stock of the Company having a value equal to the exercise price of the stock appreciation right. This deemed sale of 12,081 shares is shown on Table I as a disposition (Transaction Code "D" in column 4),although none of these shares were sold into the open market, as indicated by Transaction Code "D" in column 3. ( 2 )On November 30, 2017, the reporting person exercised a stock appreciation right with respect to 75,000 shares of Common Stock of the Company. In connection with this exercise, the reporting person was deemed to have sold back to the Company shares of Common Stock of the Company having a value equal to the exercise price of the stock appreciation right. This deemed sale of 38,100 shares is shown on Table I as a disposition (Transaction Code "D" in column 4),although none of these shares were sold into the open market, as indicated by Transaction Code "D" in column 3. ( 3 )The NFG stock fund under the NFG 401(k) plan is denominated in units, representing ownership interests in a fund that includes both NFG common stock and a reserve of cash. The information reported represents the dollar value of the reporting person's balance in the NFG stock fund as of November 30, 2017, as reported by the plan administrator, divided by the closing price of NFG common stock on that date. ( 4 )The NFG employee stock ownership plan is denominated in units, representing ownership interests in a fund that includes both NFG common stock and a reserve of cash. The information reported represents the dollar value of the reporting person's balance in the ESOP as of November 30, 2017, as reported by the plan administrator, divided by the closing price of NFG common stock on that date.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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