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 13D (including amendments thereto) with respect to the common stock, par value $0.01 per share, of Oasis Petroleum Inc., 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 October 30, 2019.

ENCAP ENERGY CAPITAL FUND VIII, L.P.
By:	EnCap Equity Fund VIII 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/ Douglas E. Swanson, Jr.
Name:	Douglas E. Swanson, Jr.
Title:	Managing Director
ENCAP ENERGY CAPITAL FUND VIII CO-INVESTORS, L.P.
By:	EnCap Equity Fund VIII 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/ Douglas E. Swanson, Jr.
Name:	Douglas E. Swanson, Jr.
Title:	Managing Director
ENCAP PARTNERS GP, LLC
By:	/s/ Douglas E. Swanson, Jr.
Name:	Douglas E. Swanson, Jr.
Title:	Managing Director