Exhibit 99.1

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1)(iii) of the Securities Exchange Act of 1934, each of the undersigned agrees that a single joint Schedule 13G and any amendments thereto may be filed on behalf of each of the undersigned with respect to the securities held by each of them in Midstates Petroleum Company, Inc.

Date: August 9, 2013		Name:
	EAGLE ENERGY PRODUCTION, LLC
	By:	/s/ Steve Antry
		Name: Steve Antry
		Title: Chief Executive Officer
	EAGLE ENERGY OPERATING COMPANY, LLC
	By:	/s/ Steve Antry
		Name: Steve Antry
		Title: Chief Executive Officer
	EAGLE ENERGY OPERATING GP, LLC
	By:	/s/ Steve Antry
		Name: Steve Antry
		Title: Chief Executive Officer
	EAGLE ENERGY COMPANY OF OKLAHOMA, LLC
	By:	/s/ Steve Antry
		Name: Steve Antry
		Title: Chief Executive Officer

R/C IV EAGLE HOLDINGS, L.P.
BY:		RIVERSTONE/CARLYLE ENERGY PARTNERS IV, L.P., Its General Partner
BY:		R/C ENERGY GP IV, LLC, Its General Partner
By:	/s/ Thomas Walker
	Name: Thomas Walker
	Title: Managing Director
RIVERSTONE/CARLYLE ENERGY PARTNERS IV, L.P
BY:	R/C ENERGY GP IV, LLC, Its General Partner
By:	/s/ Thomas Walker
	Name: Thomas Walker
	Title: Managing Director
R/C ENERGY GP IV, LLC
By:	/s/ Thomas Walker
	Name: Thomas Walker
	Title: Managing Director