JOINT FILING STATEMENT

EXHIBIT E

JOINT FILING STATEMENT

We, the undersigned, hereby express our agreement that the attached Schedule 13D is, and any further amendments thereto signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934. This agreement may be terminated with respect to the obligations to jointly file future amendments to such statement on Schedule 13D as to any of the undersigned upon such person giving written notice thereof to each of the other persons signatory hereto, at the principal office thereof.

Dated: September 20, 2010

KA First Reserve, LLC
By:		KA Fund Advisors, LLC, its managing member
By:		/s/ Xxxxx X. Xxxxx
		Name: Xxxxx X. Xxxxx
		Title: Senior Managing Director
FR KA Holdings LLC
By:		First Reserve GP XI, L.P., its managing member
By:		First Reserve GP XI, Inc., its general partner
By:		/s/ Xxxx Xxxxxx
		Name: Xxxx Xxxxxx
		Title: Vice President
First Reserve GP XI, L.P.
By:		First Reserve GP XI, Inc., its general partner
By:		/s/ Xxxx Xxxxxx
		Name: Xxxx Xxxxxx Title: Vice President
First Reserve GP XI, Inc.
By:		/s/ Xxxx Xxxxxx
		Name: Xxxx Xxxxxx Title: Vice President
KA Fund Advisors, LLC
By:		Xxxxx Xxxxxxxx Capital Advisors, L.P., its managing member
By:		/s/ Xxxxx X. Xxxxxxxxxx
		Name: Xxxxx X. Xxxxxxxxxx Title: General Counsel

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Xxxxx Xxxxxxxx Capital Advisors, L.P.
By:		/s/ Xxxxx X. Xxxxxxxxxx
		Name: Xxxxx X. Xxxxxxxxxx Title:   General Counsel
Xxxxx Xxxxxxxx Investment Management, Inc.
By:		/s/ Xxxxx X. Xxxxxxxxxx
		Name: Xxxxx X. Xxxxxxxxxx Title:   General Counsel
KA Holdings Inc.
By:		/s/ Xxxxx X. Xxxxxxxxxx
		Name: Xxxxx X. Xxxxxxxxxx Title:   General Counsel
Xxxxxxx X. Xxxxx
		/s/ Xxxxxxx X. Xxxxx
Xxxxxxx X. Xxxxxxxx
		/s/ Xxxxxxx X. Xxxxxxxx

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