JOINT FILING AGREEMENT

EXHIBIT 99.1

JOINT FILING AGREEMENT

The undersigned hereby agree that the Statement on Schedule 13G/A filed herewith (and any amendments thereto), relating to the common stock of Chesapeake Energy Corporation, an Oklahoma 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 16^th day of February, 2021.

CITADEL SECURITIES LLC CITADEL ADVISORS LLC

By:	/s/ Xxx Xxxxxx		By:	/s/ Xxxxxxx Xxxxxxx
	Xxx Xxxxxx, Authorized Signatory			Xxxxxxx Xxxxxxx, Authorized Signatory

CALC IV LP CITADEL ADVISORS HOLDINGS LP

By:	/s/ Xxx Xxxxxx		By:	/s/ Xxxxxxx Xxxxxxx
	Xxx Xxxxxx, Authorized Signatory			Xxxxxxx Xxxxxxx, Authorized Signatory

CITADEL SECURITIES GP LLC CITADEL GP LLC

By:	/s/ Xxx Xxxxxx		By:	/s/ Xxxxxxx Xxxxxxx
	Xxx Xxxxxx, Authorized Signatory			Xxxxxxx Xxxxxxx, Authorized Signatory

XXXXXXX XXXXXXX

		By:	/s/ Xxxxxxx Xxxxxxx
			Xxxxxxx Xxxxxxx, attorney-in-fact*

* Xxxxxxx Xxxxxxx is signing on behalf of Xxxxxxx Xxxxxxx as attorney-in-fact pursuant to a power of attorney previously filed with the Securities and Exchange Commission, 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 Jaws Acquisition Corp. on February 1, 2021.