Item 5.02. Departure of Directors or Certain Officers; Election of Directors, Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Departure of Chief Financial Officer and Appointment of Interim Chief Financial Officer

Effective January 18, 2013, William G. Manias, Senior Vice President and Chief Financial Officer of Crestwood Gas Services GP LLC (the "Company"), the general partner of Crestwood Midstream Partners LP (the "Partnership"), has left the Company to pursue other opportunities. A severance agreement is in the process of being negotiated and such agreement will be included in a future Form 8-K after it is executed. Also effective January 18, 2013, Steven M. Dougherty was appointed Senior Vice President and will assume the role of Interim Chief Financial Officer, pending the search for a new Chief Financial Officer. Mr. Dougherty will remain in his position as the Company's Chief Accounting Officer.

Mr. Dougherty, age 40, has served as Vice President and Chief Accounting Officer of the Company since joining the Company in June 2012. Prior to joining the Company he most recently served as Director of Corporate Accounting at El Paso Corporation, from 2001 to May 2012. Prior to joining El Paso Corporation, Mr. Dougherty was a senior audit manager at KPMG LLP. Mr. Dougherty earned a Masters of Public Accountancy degree from the University of Texas at Austin and is a Certified Public Accountant.

As compensation for his additional role as Interim Chief Financial Officer, Mr. Dougherty's compensation arrangement is in the process of being negotiated and such agreement will be included in a future Form 8-K. Pursuant to the terms of his employment offer letter with the Company, Mr. Dougherty will continue to participate in employee incentive plans and employee benefits as generally provided to all employees.

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