Chesapeake Energy (CHK)

Electronic Access to Proxy Materials and Annual Report

This proxy statement and our 2008 Annual Report are available at www.chk.com/proxy. If you are interested in receiving all future shareholder communications electronically, including proxy statements and annual reports, please visit www.icsdelivery.com/chk and register for electronic distribution. Once you register, any time we distribute materials or communications to our shareholders, you will receive an email notification containing an internet address which will direct you to these documents. You will continue to receive all shareholder communications electronically until you change this election at www.icsdelivery.com/chk. Electronic distribution saves the Company the cost of printing and mailing the documents to you, reduces the amount of mail you receive and is environmentally friendly by helping to conserve natural resources consumed in the printing process.

Electronic Access to Proxy Materials and Annual Report

This proxy statement and our 2007 Annual Report are available at www.chk.com/proxy. If you are interested in receiving all future shareholder communications electronically, including proxy statements and annual reports, please visit www.icsdelivery.com/chk and register for electronic distribution. Once you register, any time we distribute materials or communications to our shareholders, you will receive an email notification containing an internet address which will direct you to these documents. You will continue to receive all shareholder communications electronically until you change this election at www.icsdelivery.com/chk. Electronic distribution saves the Company the cost of printing and mailing the documents to you, reduces the amount of mail you receive and is environmentally friendly by helping to conserve natural resources consumed in the printing process.

Electronic Access to Proxy Materials and Annual Report

This proxy statement and our 2006 Annual Report are available on our website at www.chkenergy.com. If you are interested in receiving all future shareholder communications electronically, including proxy statements and annual reports, please visit www.icsdelivery.com/chk and register for electronic distribution. Once you register, any time we distribute materials or communications to our shareholders, you will receive an email notification containing an internet address which will direct you to these documents. Once you have registered for electronic distribution, you will continue to receive all shareholder communications electronically until you change this election at www.icsdelivery.com/chk. Electronic distribution saves the Company the cost of printing and mailing the documents to you, reduces the amount of mail you receive and is environmentally friendly by helping to conserve natural resources consumed in the printing process.

Electronic Access to Proxy Materials and Annual Report

This proxy statement and our 2005 Annual Report are available on our website at www.chkenergy.com. If you are interested in receiving all future shareholder communications electronically, including proxy statements and annual reports, please visit www.icsdelivery.com/chk and register for electronic distribution. Once you register, any time we distribute materials or communications to our shareholders, you will receive an email notification containing an internet address which will direct you to these documents. Once you have registered for electronic distribution, you will continue to receive all shareholder communications electronically until you change this election at www.icsdelivery.com/chk. Electronic distribution saves the Company the cost of printing and mailing the documents to you, reduces the amount of mail you receive and is environmentally friendly by helping to conserve natural resources consumed in the printing process.