X0303 4 2009-09-17 0 0001086319 GASCO ENERGY INC GSX 0001137539 LOTITO CARMEN J 1600 STOUT STREET, #2000 DENVER CO 80202 1 0 0 0 Common Stock 88700 D Right to Buy 1 2003-06-10 2013-02-10 Common Stock 50000 50000 D Right to Buy 1 2004-04-16 2013-12-16 Common Stock 50000 50000 D Right to Buy 2.15 2004-12-12 2014-08-12 Common Stock 75000 75000 D Right to Buy 3.39 2005-09-30 2015-06-09 Common Stock 100000 100000 D Right to Buy 1.99 2008-05-23 2018-01-23 Common Stock 12500 12500 D Right to Buy 1.80 2009-01-18 2013-09-18 Common Stock 100000 100000 D Right to Buy 1.00 2009-03-15 2013-12-15 Common Stock 25000 25000 D Right to Buy 0.52 2009-09-17 4 J 0 125000 A 2010-01-17 2014-09-17 Common Stock 125000 125000 D Granted 50,000 options as compensation. These options vest over a 2 year period, with 1/6th of the amount vesting every 4 months commencing 6/10/03, and all options expiring 2/10/13. Granted 50,000 options as compensation. These options vest over a 2 year period, with 1/6th of the amount vesting every 4 months commencing 4/16/04, and all options expiring 12/16/13. Granted 75,000 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 12/12/04, and all options expiring 8/12/14. Granted 100,000 options. These options vest over a 1 year period, with 25% of the amount vesting each calendar quarter commencing 9/30/05, and all options expiring 6/9/15. Granted 12,500 options as compensation. These options vest over a 2 year period, with 1/6th of the amount vesting every 4 months commencing 5/23/08, and all options expiring 1/23/18. 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 1/18/09, and all options expiring 9/18/13. Granted 25,000 options under Issuer's 1999 Stock Option Plan. These options vest over a 1 year period, with 1/4 of the amount vesting every 3 months commencing 3/15/09, and all options expiring 12/15/2013. These options vest over a 2 year period, with 1/6th of the amount vesting every 4 months commencing 1/17/2010, and all options expiring 9/17/14. Carmen J. Lotito 2009-09-21