13G Filing: Citadel Investment Group and Peabody Energy Corp (BTU)

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Page 11 of 11 SEC Filing

 

EXHIBIT 99.1

 

JOINT FILING AGREEMENT

The undersigned hereby agree that the Statement
on Schedule 13G filed herewith (and any amendments thereto), relating to the common stock of Peabody Energy Corporation, a Delaware
corporation, is being filed jointly with the Securities and Exchange Commission pursuant to Rule 13d-1(c) under the Securities
Exchange Act of 1934, as amended, on behalf of each of the undersigned.

This Agreement may be executed in counterparts
and each of such counterparts taken together shall constitute one and the same instrument.

Dated this 8th day of March, 2016.

CITADEL ADVISORS LLC CITADEL ADVISORS HOLDINGS II LP
By: /s/ Mark Polemeni By: /s/ Mark Polemeni
Mark Polemeni, Authorized Signatory Mark Polemeni, Authorized Signatory
CITADEL GP LLC KENNETH GRIFFIN
By: /s/ Mark Polemeni By: /s/ Mark Polemeni
Mark Polemeni, Authorized Signatory Mark Polemeni, attorney-in-fact*

____________________________

* Mark Polemeni is signing on behalf of Kenneth Griffin as attorney-in-fact pursuant to a power of attorney previously filed
with the Securities and Exchange Commission on January 18, 2013, and hereby incorporated by reference herein. The power of attorney
was filed as an attachment to a filing by Citadel Advisors LLC on Schedule 13G for TiVo Inc.

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