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 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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(Print or Type Responses)

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) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Senior VP - Corporate Finance (Last) (First) (Middle) 200 NORTH CANAL STREET 3. Date of Earliest Transaction (Month/Day/Year) 05/15/2013 (Street) NATCHEZ, MS 39120 4. If Amendment, Date Original Filed(Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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

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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

2013 Restricted Stock Units (1)

(2)

05/15/2013

A

40,095

05/13/2016

05/13/2016

Common Stock

40,095

(2)

40,095

D

2013 Phantom Units (1) (3)

(3)

05/15/2013

A

7,075

05/13/2016

05/13/2016

Phantom Stock Units Payable in Cash

7,075

(3)

7,075

D

2013 Phantom Units - Performance Based (4)

(4)

05/15/2013

A

67,773

12/31/2015

12/31/2015

Phantom Stock Units Payable in Cash

67,773

(4)

67,773

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Gatto Joseph C. Jr. 200 NORTH CANAL STREET NATCHEZ, MS 39120			Senior VP - Corporate Finance

Signatures

Clay V. Bland as Attorney-in-fact		05/17/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The award terms specify cliff vesting three years from the date of the award.
(2)	The value of each vested unit will be equal to the closing price of the company's common stock on the vesting date.
(3)	The terms of this Phantom Unit award specify payment in cash rather than in common shares. The amount payable for each vested unit will be based on the economic value of one share of Callon Petroleum Company common stock at its closing price on the vesting date.
(4)	The terms of this Phantom Unit award specify payment in cash rather than in common shares. The amount payable for each unit will be based on the economic value of one share of Callon Petroleum Company common stock at its closing price on the vesting date. In addition, the award is 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. The number of units subject to vest under this award can range from 0% to as much as 200%.

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