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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
HILL J TOMILSON
  2. Issuer Name and Ticker or Trading Symbol
Blackstone Group L.P. [BX]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Vice Chairman
(Last)
(First)
(Middle)
C/O THE BLACKSTONE GROUP, 345 PARK AVENUE, 15TH FLOOR
3. Date of Earliest Transaction (Month/Day/Year)
08/05/2011
(Street)

NEW YORK, NY 10154
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 units representing limited partner interests 08/05/2011   G(1)   497,980 D $ 0 2,127,062 D  
Common units representing limited partner interests 08/05/2011   G(2)   2,020 D $ 0 2,125,042 D  
Common units representing limited partner interests 03/07/2012   G(1) V 1,035,513 D $ 0 1,089,529 D  
Common units representing limited partner interests 03/07/2012   G(2) V 5,051 D $ 0 1,084,478 D  
Common units representing limited partner interests 08/05/2011   G(3)   200,000 D $ 0 500,000 I See footnote (4)
Common units representing limited partner interests 03/07/2012   G(3) V 500,000 D $ 0 0 I See footnote (4)
Common units representing limited partner interests 08/05/2011   G(3)   200,000 A $ 0 200,000 I See footnote (5)
Common units representing limited partner interests 08/05/2011   G(6)   2,020 A $ 0 202,020 I See footnote (5)
Common units representing limited partner interests 03/07/2012   G(3) V 500,000 A $ 0 702,020 I See footnote (5)
Common units representing limited partner interests 03/07/2012   G(6) V 5,051 A $ 0 707,071 I See footnote (5)
Common units representing limited partner interests 08/05/2011   G(1)   497,980 A $ 0 497,980 I See footnote (7)
Common units representing limited partner interests 03/07/2012   G(3) V 1,035,513 A $ 0 1,533,493 I See footnote (7)
Common units representing limited partner interests 08/05/2011   G(2)   2,020 A $ 0 2,020 I See footnote (8)
Common units representing limited partner interests 08/05/2011   G(6)   2,020 D $ 0 0 I See footnote (8)
Common units representing limited partner interests 03/07/2012   G(2) V 5,051 A $ 0 5,051 I See footnote (8)
Common units representing limited partner interests 03/07/2012   G(6) V 5,051 D $ 0 0 I See footnote (8)

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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
HILL J TOMILSON
C/O THE BLACKSTONE GROUP
345 PARK AVENUE, 15TH FLOOR
NEW YORK, NY 10154
  X     Vice Chairman  

Signatures

 /s/ Robert L. Friedman, Attorney-in-Fact   05/07/2012
**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) Mr. Hill transferred these units to a personal LLC of which he is a manager.
(2) Mr. Hill transferred these units to his spouse.
(3) These units were transferred from a trust for the benefit of Mr. Hill's children, of which Mr. Hill's spouse is the investment trustee, to a trust LLC of which Mr. Hill's spouse is the manager ("Trust LLC").
(4) These units are held by a trust for the benefit of Mr. Hill's children, of which Mr. Hill's spouse is the investment trustee. Mr. Hill disclaims beneficial ownership of the units held by this trust except to the extent of his pecuniary interest.
(5) These units are held by Trust LLC. Mr. Hill disclaims beneficial ownership of the units held by Trust LLC except to the extent of his pecuniary interest.
(6) These units were transferred by Mr. Hill's spouse to Trust LLC.
(7) These units are held by a personal LLC, of which Mr. Hill is a manager. Mr. Hill disclaims beneficial ownership of the units held by this personal trust except to the extent of his pecuniary interest.
(8) These units are held by Mr. Hill's spouse. Mr. Hill disclaims beneficial ownership of the units held by his spouse except to the extent of his pecuniary interest.

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