POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director and/or officer of
ExpressJet Holdings, Inc. (the “Company”), does hereby constitute and appoint James B. Ream, Frederick S.
Cromer and Scott R. Peterson, or any of them, as the undersigned’s true and lawful attorneys in fact and agents
to execute in the name, place and stead of the undersigned the Company’s Annual Report on Form 10-K for the
year ended December 31, 2006 (and any amendments thereto), to be filed by the Company under the Securities
Exchange Act of 1934, as amended, as fully and effectively in all respects as the undersigned could do if
personally present.
IN WITNESS WHEREOF, the undersigned has signed this Power of Attorney on and as of the date set
forth below.
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director and/or officer of
ExpressJet Holdings, Inc. (the “Company”), does hereby constitute and appoint James B. Ream, Frederick S.
Cromer and Scott R. Peterson, or any of them, as the undersigned’s true and lawful attorneys in fact and agents
to execute in the name, place and stead of the undersigned the Company’s Annual Report on Form 10-K for the
year ended December 31, 2006 (and any amendments thereto), to be filed by the Company under the Securities
Exchange Act of 1934, as amended, as fully and effectively in all respects as the undersigned could do if
personally present.
IN WITNESS WHEREOF, the undersigned has signed this Power of Attorney on and as of the date set
forth below.
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, a director and/or officer of
ExpressJet Holdings, Inc. (the “Company”), does hereby constitute and appoint James B. Ream, Frederick S.
Cromer and Scott R. Peterson, or any of them, as the undersigned’s true and lawful attorneys in fact and agents
to execute in the name, place and stead of the undersigned the Company’s Annual Repo