Exhibit 1

JOINT FILING AGREEMENT

Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules and regulations thereunder, each party agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act of any rule or regulation thereunder (including any amendment, restatement, supplement and/or exhibit thereto) with the Securities and Exchange Commission (and, if such security is registered on a national securities exchange, also with the exchange), and further agrees to the filing, furnishing and/or incorporation by reference of this agreement as an exhibit thereto. The agreement shall remain in full force and effect until revoked by either party hereto in a signed writing provided to each other party hereto, and then only with respect to such revoking party.

IN WITNESS WHEREOF, each party hereto, being duly authorized, has caused this agreement to be executed and effective as of the date written below.

Dated: December 23, 2019

John C. Goff		GFS Contango GP, LLC
		By: its Managing Member, GFS Management, LLC
By:	/s/ John C. Goff	By: its Managing Member, Goff Focused Strategies LLC
Goff MCF Partners, LP
By: its General Partner, GFS Contango GP, LLC
		By:	/s/ John C. Goff
		John C. Goff, Chief Executive Officer
		GFS Management, LLC
By:	/s/ John C. Goff	By: its Managing Member, Goff Focused
	John C. Goff, Chief Executive Officer		Strategies LLC
Goff Family Investments, LP
By: its General Partner, Goff Capital, Inc.
		By:	/s/ John C. Goff
		John C. Goff, Chief Executive Officer
By:	/s/ John C. Goff	Goff Focused Strategies LLC
	John C. Goff, Chief Executive Officer
Goff Capital, Inc.
		By:	/s/ John C. Goff
			John C. Goff, Chief Executive Officer
By:	/s/ John C. Goff
	John C. Goff, Chief Executive Officer	GFT Strategies, LLC
		By: its managing member, John C. Goff
John C. Goff 2010 Family Trust			2010 Family Trust
By:	/s/ John C. Goff	By:	/s/ John C. Goff
	John C. Goff, Sole Trustee	John C. Goff, Trustee

JCG 2016 Holdings, LP
By:	its General Partner, JCG 2016 Management, LLC	JCG 2016 Management, LLC
By:	/s/ John C. Goff
John C. Goff, Manager		By:	/s/ John C. Goff
		John C. Goff, Manager
Kulik Partners, LP
By:	its General Partner, Kulik GP, LLC	Kulik GP, LLC
By:	/s/ John C. Goff
John C. Goff, Manager		By:	/s/ John C. Goff
		John C. Goff, Manager