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 OF SECURITIES
                                                                                  
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OMB Number: 3235-0287
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

STREETER KENT L 		2. Issuer Name and Ticker or Trading Symbol

DELTIC TIMBER CORP [ DEL ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Vice President Wood Products
(Last)          (First)          (Middle)

210 E. ELM STREET 		3. Date of Earliest Transaction (MM/DD/YYYY)

12/19/2017
(Street)

EL DORADO, AR 71730
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   12/19/2017     A    13544   (1) A $0.00   26998   D    
Common Stock   12/19/2017     M    654   (2) A $63.21   27652   D    
Common Stock   12/19/2017     M    970   (2) A $65.89   28622   D    
Common Stock   12/19/2017     M    1443   (2) A $55.94   30065   D    
Common Stock   12/19/2017     M    2598   (2) A $76.95   32663   D    
Common Stock   12/19/2017     S    5665   (2) D $90.94   26998   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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 Option   (3) $63.21   12/19/2017     M         654    12/19/2017   2/19/2024   Common Stock   654   $0.00   0   D    
Stock Option   (3) $65.89   12/19/2017     M         485    12/19/2017   2/18/2025   Common Stock   485   $0.00   0   D    
Stock Option   (3) $65.89   12/19/2017     M         485    12/19/2017   2/18/2025   Common Stock   485   $0.00   0   D    
Stock Option   (3) $55.94   12/19/2017     M         481    12/19/2017   2/17/2026   Common Stock   481   $0.00   0   D    
Stock Option   (3) $55.94   12/19/2017     M         481    12/19/2017   2/17/2026   Common Stock   481   $0.00   0   D    
Stock Option   (3) $55.94   12/19/2017     M         481    12/19/2017   2/17/2026   Common Stock   481   $0.00   0   D    
Stock Option   (3) $76.95   12/19/2017     M         650    12/19/2017   2/15/2027   Common Stock   650   $0.00   0   D    
Stock Option   (3) $76.95   12/19/2017     M         649    12/19/2017   2/15/2027   Common Stock   649   $0.00   0   D    
Stock Option   (3) $76.95   12/19/2017     M         650    12/19/2017   2/15/2027   Common Stock   650   $0.00   0   D    
Stock Option   (3) $76.95   12/19/2017     M         649    12/19/2017   2/15/2027   Common Stock   649   $0.00   0   D    

Explanation of Responses:
(1)  Vesting of accelerated award of 2014, 2015, 2016 & 2017 Performance-Based restricted stock under 2002 SIP.
(2)  Stock acquired and sold was pursuant to stock option exercise.
(3)  Option under 2002 SIP and previously reported.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
STREETER KENT L
210 E. ELM STREET
EL DORADO, AR 71730

Vice President Wood Products

Signatures
Jim F. Andrews, Jr., Attorney-in-Fact for Kent L. Streeter 12/21/2017
** Signature of Reporting Person 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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