Exhibit 99.1

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 hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 16 of the Exchange Act or 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. This agreement shall remain in full force and effect until revoked by any 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 21st day of March, 2018.

OneEnergy Partners Operating, LLC
By:	/s/ Brandon White
	Brandon White
	Chief Financial Officer
OneEnergy Partners Management Holdings, LLC
By:	/s/ Brandon White
	Brandon White
	Chief Financial Officer
OneEnergy Partners, LLC
By:	/s/ Brandon White
	Brandon White
	Chief Financial Officer

Carnelian OneEnergy Holdings, LLC
By:	/s/ Tomas Ackerman
	Tomas Ackerman
	Manager
Carnelian Energy Capital, L.P.
By:	/s/ Tomas Ackerman
	Tomas Ackerman
	Manager
Carnelian Energy Capital GP, L.P.
By:	/s/ Tomas Ackerman
	Tomas Ackerman
	Manager
/s/ Tomas Ackerman
Tomas Ackerman
/s/ Daniel Goodman
Daniel Goodman