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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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 *

Gatto Joseph C. Jr.
2. Issuer Name and Ticker or Trading Symbol

CALLON PETROLEUM CO [ CPE ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
President and CEO
(Last)          (First)          (Middle)

1401 ENCLAVE PARKWAY, SUITE 600
3. Date of Earliest Transaction (MM/DD/YYYY)

12/31/2018
(Street)

HOUSTON, TX 77077
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

1/3/2019 
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                  21619   I   401(k) Account  
Common Stock   12/31/2018     M    46221   A $0   (1) 234963   D    
Common Stock   12/31/2018     D    46221   D $6.49   188742   D    
Common Stock   12/31/2018     M    46221   A $0   234963   D    
Common Stock   12/31/2018     F    12028   (2) D $6.49   222935   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
2016 Performance Units - 50% Cash   (3) (4) (5)   (1) 12/31/2018     M         32550    12/31/2018   12/31/2018   Common Stock   32550.0   $0   (1) 0   (5) D    
2016 Performance Units - 50% Stock   (3) (6)   (7) 12/31/2018     M         32550    12/31/2018   12/31/2018   Common Stock   32550.0   $0   (7) 0   D    

Explanation of Responses:
(1)  Each Performance Unit paid in cash is the economic equivalent of the vesting date closing price of one share of Callon Petroleum Company's common stock.
(2)  Payment of tax liability by withholding Common Stock incident to vesting of Performance Unit award issued in accordance with Rule 16b-3.
(3)  This Performance Unit award was subject to a variable number of units vesting based on a performance criteria related to the total shareholder return of the Company compared to a group of peer companies over a 31 month period. The number of units subject to vest under this award ranged from 0% to 200%. On the vesting date, this Performance Unit award vested at the 142% level.
(4)  The terms of this Performance Unit award specify payment in cash.
(5)  This amendment amends a Form 4 dated January 3, 2019 ("Form 4") which reported a holding rather than a transaction and disposition of 32,550 shares. The derivative Securities Beneficially Owned Following Reported Transaction should have been reported as 0 shares, rather than 32,550 shares. All other provisions in the original Form 4 remain unchanged.
(6)  The terms of this Performance Unit Award specify payment in stock.
(7)  Each Performance Unit is the economic equivalent of one share of Callon Petroleum Company's common stock.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Gatto Joseph C. Jr.
1401 ENCLAVE PARKWAY
SUITE 600
HOUSTON, TX 77077
X
President and CEO

Signatures
Joseph C. Gatto, Jr. by Stacy E. Skelton, as Attorney-in-Fact 1/7/2019
** 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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