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 HOLDINGS GP, LLC

Date of Event Requiring Statement: November 5, 2010

Issuer Name and Ticker or Trading Symbol:   XCO

OAKTREE CAPITAL I, L.P.
By: OCM Holdings I, LLC
Its: General Partner
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director and Assistant Secretary
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President

OCM HOLDINGS I, LLC
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President

OAKTREE HOLDINGS, LLC
By: Oaktree Capital Group, LLC Its: Managing Member
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director and Assistant Secretary
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President

OCM EXCO HOLDINGS, LLC
By: Oaktree Capital Management, L.P., Its: Manager
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President

OAKTREE CAPITAL MANAGEMENT, L.P.
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President, Legal

OAKTREE HOLDINGS, INC.
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director and Assistant Secretary
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President

OAKTREE CAPITAL GROUP, LLC
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director and Assistant Secretary
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President

Potential persons who are to respond to the collection of information contained in this form are not

required to respond unless the form displays a currently valid OMB Number.

OAKTREE CAPITAL GROUP HOLDINGS, L.P.
By: Oaktree Capital Group Holdings GP, LLC Its: General Partner
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President

OAKTREE CAPITAL GROUP HOLDINGS GP, LLC
By:	/s/ Lisa Arakaki
Name:	Lisa Arakaki
Title:	Managing Director
By:	/s/ Martin Boskovich
Name:	Martin Boskovich
Title:	Senior Vice President

Potential persons who are to respond to the collection of information contained in this form are not

required to respond unless the form displays a currently valid OMB Number.