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 *

R/C IV Eagle Holdings, L.P. 		2. Issuer Name and Ticker or Trading Symbol

Midstates Petroleum Company, Inc. [ MPO ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

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

712 FIFTH AVENUE, 36TH FLOOR 		3. Date of Earliest Transaction (MM/DD/YYYY)

10/1/2015
(Street)

NEW YORK, NY 10019
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

___ Form filed by One Reporting Person
_ X _ 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   10/1/2015     S    30889   D $5.94   (1) 3510776   D   (2)  
Common Stock   10/2/2015     S    38400   D $5.73   (3) 3472376   D   (2)  

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

Explanation of Responses:
( 1)  The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.75 to $6.24, inclusive. The reporting person undertakes to provide to Midstates Petroleum Company, Inc. (the "Issuer"), any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) and (3) to this Form 4.
( 2)  Held directly by R/C IV Eagle Holdings, L.P. ("Eagle Holdings"). R/C Energy GP IV, LLC ("Ultimate R/C GP") is the general partner of Riverstone/Carlyle Energy Partners IV, L.P. ("R/C GP"), which is the general partner of Eagle Holdings. Each of Ultimate R/C GP and R/C GP may be deemed to indirectly own the shares directly owned by Eagle Holdings.
( 3)  The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.65 to $5.82, inclusive.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
R/C IV Eagle Holdings, L.P.
712 FIFTH AVENUE, 36TH FLOOR
NEW YORK, NY 10019
X

Riverstone/Carlyle Energy Partners IV, L.P.
712 FIFTH AVENUE, 36TH FLOOR
NEW YORK, NY 10019
X

R/C Energy GP IV, LLC
712 FIFTH AVENUE, 36TH FLOOR
NEW YORK, NY 10019
X


Signatures
/s/ Thomas Walker, as Managing Director of R/C Energy GP IV, LLC, on behalf of R/C IV Eagle Holdings, L.P. 10/5/2015
** Signature of Reporting Person Date

/s/ Thomas Walker, as Managing Director of R/C Energy GP IV, LLC, on behalf of Riverstone/Carlyle Energy Partners IV, L.P. 10/5/2015
** Signature of Reporting Person Date

/s/ Thomas Walker, as Managing Director, on behalf of R/C Energy GP IV, LLC 10/5/2015
** 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.