Ownership Submission
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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
MUELLER MARK D
  2. Issuer Name and Ticker or Trading Symbol
SM Energy Co [SM]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. VP & Regional Manager
(Last)
(First)
(Middle)
1775 SHERMAN STREET, SUITE 1200
3. Date of Earliest Transaction (Month/Day/Year)
07/01/2015
(Street)

DENVER, CO 80203
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
Common Stock; $.01 Par Value 06/30/2015   J(1) V 333 A $ 32.793 45,917 D  
Common Stock; $.01 Par Value 07/01/2015   M   764 A (2) 46,681 D  
Common Stock; $.01 Par Value 07/01/2015   F   255 D $ 46.12 46,426 D  
Common Stock; $.01 Par Value 07/01/2015   M   625 A (3) 47,051 D  
Common Stock; $.01 Par Value 07/01/2015   F   209 D $ 46.12 46,842 D  
Common Stock; $.01 Par Value 07/01/2015   M   445 A (4) 47,287 D  
Common Stock; $.01 Par Value 07/01/2015   F   149 D $ 46.12 47,138 D  
Common Stock; $.01 Par Value 07/01/2015   M   6,493 A (5) 53,631 D  
Common Stock; $.01 Par Value 07/01/2015   F   2,167 D $ 46.12 51,464 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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. SEC 1474 (9-02)

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
Restricted Stock Units (2) 07/01/2015   M     764   (2)   (2) Common Stock 764 (2) 0 D  
Restricted Stock Units (3) 07/01/2015   M     625   (3)   (3) Common Stock 625 (3) 626 D  
Restricted Stock Units (4) 07/01/2015   M     445   (4)   (4) Common Stock 445 (4) 893 D  
Performance Share Units (5) 07/01/2015   A   6,493     (5)   (5) Common Stock 6,493 (5) 6,493 D  
Performance Share Units (5) 07/01/2015   M     6,493   (5)   (5) Common Stock 6,493 (5) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MUELLER MARK D
1775 SHERMAN STREET
SUITE 1200
DENVER, CO 80203
      Sr. VP & Regional Manager  

Signatures

 Karin M. Writer (Attorney-In-Fact)   07/06/2015
**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 reporting person purchased 333 shares of the issuer's common stock on June 30, 2015, through the issuer's Employee Stock Purchase Plan.
(2) Each restricted stock unit represents a contingent right to receive one share of stock. The restricted stock unit grant vested in three equal annual installments beginning on July 1, 2013. The vested shares were issued to the reporting person on the vesting dates, at which time all restrictions on the vested shares lapsed.
(3) Each restricted stock unit represents a contingent right to receive one share of stock. The restricted stock unit grant vests in three equal annual installments beginning on July 1, 2014. The vested shares will be issued to the reporting person on the vesting dates, at which time all restrictions on the vested shares will lapse.
(4) Each restricted stock unit represents a contingent right to receive one share of stock. The restricted stock unit grant vests in three equal annual installments beginning on July 1, 2015. The vested shares will be issued to the reporting person on the vesting dates, at which time all restrictions on the vested shares will lapse.
(5) On July 1, 2015, the Compensation Committee of the Board of Directors of the issuer determined that 6,493 shares of the issuer's common stock had been earned by the reporting person under the terms of a grant of performance share units (the "PSUs"), based on the achievement of specific performance criteria that were not tied solely to the market price of the issuer's common stock. The PSUs were granted to the reporting person on July 1, 2012, and represent the right to receive, upon the settlement of the PSUs, the determined number of earned shares of the issuer's common stock based on the achievement of the performance criteria over a three-year performance period (with the determined number of earned shares being within a range of zero to two times the number of PSUs granted on the award date), to the extent that the PSUs have vested under separate employment service vesting provisions. The PSUs vested in three equal annual installments beginning on July 1, 2013.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.