CUSIP No. 67402D 104 13D Page 14 of 14 Pages

Exhibit 1

SECOND AMENDED AND RESTATED JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, each of the undersigned acknowledges and agrees that the foregoing statement on Schedule 13D is filed on behalf of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of the undersigned without the necessity of filing additional joint acquisition statements. Each of the undersigned acknowledges that it shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that it knows or has reason to believe that such information is inaccurate.

Dated as of December 20, 2019.

OAKTREE CAPITAL MANAGEMENT, L.P.
By:	/s/ Jeffrey Joseph
	Name: Jeffrey Joseph
	Title: Senior Vice President
OAKTREE CAPITAL MANAGEMENT GP, LLC
By:	/s/ Jeffrey Joseph
	Name: Jeffrey Joseph
	Title: Senior Vice President
ATLAS OCM HOLDINGS, LLC
By:	/s/ Jeffrey Joseph
	Name: Jeffrey Joseph
	Title: Senior Vice President
OAKTREE CAPITAL GROUP, LLC
By:	/s/ Jeffrey Joseph
	Name: Jeffrey Joseph
	Title: Senior Vice President
OAKTREE CAPITAL I, L.P.
By:	/s/ Jeffrey Joseph
	Name: Jeffrey Joseph
	Title: Senior Vice President
OCM HOLDINGS I, LLC
By:	/s/ Jeffrey Joseph
	Name: Jeffrey Joseph
	Title: Senior Vice President
OAKTREE HOLDINGS, LLC
By:	/s/ Jeffrey Joseph
	Name: Jeffrey Joseph
	Title: Senior Vice President