X0202 4 2007-12-04 0 0001040593 CARRIZO OIL & GAS INC CRZO 0001257331 BOLING PAUL F 1000 LOUISIANA STREET SUITE 1500 HOUSTON TX 77002 0 1 0 0 CFO, VP, Secretary, Treasurer Common Stock 2007-12-04 4 M 0 2000 5.725 A 42730 D Common Stock 2007-12-04 4 M 0 5750 6.98 A 48480 D Common Stock 2007-12-04 4 S 0 1434 50.10 D 47046 D Common Stock 2007-12-04 4 S 0 400 50.11 D 46646 D Common Stock 2007-12-04 4 S 0 826 50.12 D 45820 D Common Stock 2007-12-04 4 S 0 990 50.18 D 44830 D Common Stock 2007-12-04 4 S 0 1800 50.19 D 43030 D Common Stock 2007-12-04 4 S 0 100 50.21 D 42930 D Common Stock 2007-12-04 4 S 0 300 50.22 D 42630 D Common Stock 2007-12-04 4 S 0 100 50.23 D 42530 D Common Stock 2007-12-04 4 S 0 1600 50.24 D 40930 D Common Stock 2007-12-04 4 S 0 100 50.25 D 40830 D Common Stock 2007-12-04 4 S 0 100 50.27 D 40730 D Employee Stock Option (right to buy) 5.725 2007-12-04 4 M 0 2000 0 D 2013-08-12 Common Stock 2000 0 D Employee Stock Option (right to buy) 6.98 2007-12-04 4 M 0 5750 0 D 2014-02-19 Common Stock 5750 19250 D The options became exercisable in cumulative annual increments of one-third of the total number of shares of common stock subject thereto, beginning August 12, 2004, the first anniversary of the date of grant. The options became exercisable in cumulative annual increments of one-third of the total number of shares of Common Stock subject thereto, beginning February 19, 2005, the first anniversary of the date of the grant. /s/Paul F. Boling 2007-12-06