Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Buckiso Scott D
 2. Date of Event Requiring Statement (Month/Day/Year)
05/31/2015		 3. Issuer Name and Ticker or Trading Symbol
UNITED STATES STEEL CORP [X]
(Last)
(First)
(Middle)
600 GRANT STREET, 61ST FLOOR		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP Euro Solutions & Pres USSK
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PITTSBURGH, PA 15219		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 13,477
D
 
Common Stock 3,219.169
I
By 401(k) plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (1) 05/27/2009(2) 05/27/2018 Common Stock 450 $ 169.225 D  
Stock Option (1) 05/26/2010(2) 05/26/2019 Common Stock 3,960 $ 29.805 D  
Stock Option (1) 05/25/2011(2) 05/25/2020 Common Stock 1,890 $ 45.65 D  
Stock Option (1) 05/31/2012(2) 05/31/2021 Common Stock 3,250 $ 45.805 D  
Stock Option (1) 05/29/2013(2) 05/29/2022 Common Stock 7,410 $ 22.305 D  
Stock Option (1) 05/28/2014(2) 05/28/2023 Common Stock 7,240 $ 18.64 D  
Stock Option (1) 05/27/2015(2) 05/27/2024 Common Stock 8,970 $ 24.285 D  
Stock Option (1) 02/24/2016(2) 02/24/2025 Common Stock 8,880 $ 24.78 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Buckiso Scott D
600 GRANT STREET, 61ST FLOOR
PITTSBURGH, PA 15219		       VP Euro Solutions & Pres USSK  

Signatures

/s/ Arden T. Phillips by Power of Attorney 06/04/2015
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) United States Steel Corporation Common Stock
(2) First grant date anniversary. Option vests ratably over three years, one-third on each of the first, second and third grant date anniversaries.

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