EXHIBIT 99.1

This Statement on Form 4 is filed jointly by the Reporting Persons listed below. The principal business address of each of these Reporting Persons is 333 South Grand Avenue, 28th Fl., Los Angeles, CA 90071.

Name of Designated Filer: OAKTREE CAPITAL GROUP, LLC

Date of Event Requiring Statement: November 30, 2020

Issuer Name and Ticker or Trading Symbol: MEG

	PARTNERS LIMITED

	By:	/s/ Brian Lawson
	Name:	Brian Lawson
	Title:	President

	BROOKFIELD ASSET MANAGEMENT INC.

	By:	/s/ Jessica Diab
	Name:	Jessica Diab
	Title:	Vice President, Legal & Regulatory

	OAKTREE CAPITAL GROUP, LLC

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Senior Vice President

	OAKTREE HOLDINGS, LLC

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Senior Vice President

	OCM HOLDINGS I, LLC

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Senior Vice President

	OAKTREE CAPITAL I, L.P.

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Senior Vice President

	OAKTREE FUND GP I, L.P.

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Authorized Signatory

	OAKTREE FUND GP, LLC

	By:	Oaktree Fund GP I, L.P.
	Its:	Managing Member

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Authorized Signatory

	OCM MONTROSE II HOLDINGS, L.P.

	By:	Oaktree Fund GP, LLC
	Its:	General Partner

	By:	Oaktree Fund GP I, L.P.
	Its:	Managing Member

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Authorized Signatory

	OCM MONTROSE HOLDINGS, L.P.

	By:	Oaktree Fund GP, LLC
	Its:	General Partner

	By:	Oaktree Fund GP I, L.P.
	Its:	Managing Member

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Authorized Signatory

	OAKTREE HOLDINGS, LTD.

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Senior Vice President

	OAKTREE CAPITAL MANAGEMENT, L.P.

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Senior Vice President

	OCM FIE, LLC

	By:	/s/ Jordan Mikes
	Name:	Jordan Mikes
	Title:	Authorized Signatory

Oaktree Holdings, Ltd. 4