X0202 4 2008-06-06 0 0001086319 GASCO ENERGY INC GSX 0001134508 STADELHOPER CARL 8 INVERNESS DR EAST, #100 ENGLEWOOD CO 80112 1 0 0 0 Common Stock 2008-06-06 4 M 0 50000 3.00 A 50000 D Common Stock 2008-06-06 4 S 0 34124 4.2515 D 15876 D Common Stock 2008-06-09 4 S 0 15876 4.25 D 0 D Right to Buy 3.39 2005-09-30 2010-09-30 Common Stock 100000 100000 D Right to Buy 5.69 2007-04-26 2016-04-26 Common Stock 100000 100000 D Right to Buy 3.00 2008-06-06 4 M 0 50000 3.00 D 2001-02-08 2011-02-08 Common Stock 50000 0 D These sales are pursuant to a 10b5-1 plan. Granted 100,000 options under the Issuer's 1999 Stock Option Plan. These options vest over a 2 year period, with 1/6th of the amount vesting every 4 months commencing 4/26/07, and all options expiring 4/26/16. Granted 100,000 options. These options vest over a one year period, with 25% of the amount vesting every calendar quarter commencing 9/30/05, and expiring 5 years from the date of vesting. Carl Stadelhofer 2008-06-10