IN WITNESS WHEREOF, this employment agreement is dated as of the 19th day of

IN WITNESS WHEREOF, the Company hereby adopts this Plan effective as of the Effective Date.

Confidential IN WITNESS WHEREOF, the Parties have executed this Agreement by their duly authorized representatives.

(This is intentionally blank. Signature page follows.) In witness whereof, the Parties have executed this Agreement,

IN WITNESS WHEREOF, the parties hereto have executed this Agreement the day and first above written.

IN WITNESS, WHEREOF, the foregoing assumption has been executed to be effective as of November 29, 2016.

BN 75944910vl IN WITNESS WHEREOF, this Amendment has been executed and delivered as of the date set forth above.

Signatures appear on following page IN WITNESS WHEREOF, the parties have executed this Agreement as of the [●] day of [●].

IN WITNESS, WHEREOF, the parties have executed this Agreement as of the date set forth in the first paragraph.

100072.7 -4- IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date first set forth above.

Initials IN WITNESS WHEREOF, the Company has caused this Note to be duly executed by an officer thereunto duly authorized.

IN WITNESS WHEREOF, Southwestern has caused this Agreement to be executed by its undersigned duly authorized officer as of the ​, ​.

Separation Agreement - Feldman IN WITNESS WHEREOF, Executive and ​ have executed this Agreement as of the date first set forth above.

THE REMAINDER OF THIS PAGE HAS BEEN LEFT INTENTIONALLY BLANK IN WITNESS WHEREOF, this Subscription Agreement is executed as of the day and year first written above.

SCHEDULE # TO AMENDMENT THREE TO GOLD FORWARD SALES CONTRACT IN WITNESS WHEREOF, the parties hereto have executed this agreement as of this 30th day of November 2016.

Amended and Restated Gas Gathering Agreement IN WITNESS WHEREOF, the Parties hereto have executed this Agreement in duplicate originals to be effective as of the Effective Date.