Exhibit 1.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the common stock, par value $0.10 per share, of Devon Energy Corporation, a Delaware corporation, and further agree that this Joint Filing Agreement be included as an exhibit to such joint filings. In evidence thereof, each of the undersigned hereby executes this Joint Filing Agreement as of January 19, 2016.

Felix STACK Holdings, LLC
By:	/s/ D. Martin Phillips
Name:	D. Martin Phillips
Title:	Manager
EnCap FEx Holdings, LLC
By:	EnCap Energy Capital Fund IX, L.P.,
	its sole member
By:	EnCap Equity Fund IX GP, L.P.,
	its general partner
By:	EnCap Investments L.P.,
	its general partner
By:	EnCap Investments GP, L.L.C.,
	its general partner
By:	/s/ D. Martin Phillips
Name:	D. Martin Phillips
Title:	Managing Partner
EnCap Partners, LLC
By:	/s/ D. Martin Phillips
Name:	D. Martin Phillips
Title:	Managing Partner