New York, April 29, 2013 - NYSE MKT announced today its final determination to remove the Common Stock (the "Securities") of Gasco Energy, Inc. from listing on the Exchange, and filed an application on Form 25 to strike the Securities from listing with the Securities and Exchange Commission (the "SEC"). The delisting will become effective on May 9, 2013 unless postponed by the SEC.

Pursuant to its rules, the Exchange provided notice to Gasco Energy, Inc. of the decision to delist the Securities and an opportunity to appeal the decision to a committee appointed by the Board of Directors of NYSE MKT.

In addition to this press release, NYSE MKT will provide public notice of its determination on its website. Notice will remain posted on the website until the delisting is effective.

See Section 802.00 of the NYSE Listed Company Manual for continued listing criteria and procedure for delisting