Attached files

file filename
10-K - FORM 10-K - CARRIZO OIL & GAS INCd223425d10k.htm
EX-21 - SUBSIDIARIES OF THE COMPANY - CARRIZO OIL & GAS INCd223425dex21.htm
EX-23.2 - CONSENT OF FAIRCHILD AND WELLS, INC - CARRIZO OIL & GAS INCd223425dex232.htm
EX-23.1 - CONSENT OF KPMG LLP - CARRIZO OIL & GAS INCd223425dex231.htm
EX-23.5 - CON SENT OF RYDER SCOTT COMPANY PETROLEUM ENGINEERS (U.K.) - CARRIZO OIL & GAS INCd223425dex235.htm
EX-31.1 - CEO CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 - CARRIZO OIL & GAS INCd223425dex311.htm
EX-31.2 - CFO CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 - CARRIZO OIL & GAS INCd223425dex312.htm
EX-32.1 - CEO CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 - CARRIZO OIL & GAS INCd223425dex321.htm
EX-32.2 - CFO CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 - CARRIZO OIL & GAS INCd223425dex322.htm
EX-99.2 - SUMMARY OF RESERVE REPORT AND REPORT OF RYDER SCOTT COMPANY PETROLEUM - CARRIZO OIL & GAS INCd223425dex992.htm
EX-99.3 - SUMMARY OF RESERVE REPORT AND REPORT OF FAIRCHILD AND WELLS, INC. - CARRIZO OIL & GAS INCd223425dex993.htm
EX-99.4 - SUMMARY OF RESERVE REPORT AND REPORT OF LAROCHE PETROLEUM CONSULTANTS, LTD. - CARRIZO OIL & GAS INCd223425dex994.htm
EX-99.1 - SUMMARY OF RESERVE REPORT AND REPORT OF RYDER SCOTT COMPANY PETROLEUM ENGINEERS - CARRIZO OIL & GAS INCd223425dex991.htm
EX-23.4 - CONSENT OF RYDER SCOTT COMPANY PETROLEUM ENGINEERS (U.S.) - CARRIZO OIL & GAS INCd223425dex234.htm

LOGO

Exhibit 23.3

CONSENT OF INDEPENDENT PETROLEUM ENGINEERS

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Registration Nos. 333-162888, 333-137273, 333-116528, 333-55838 and 333-35245) of Carrizo Oil & Gas, Inc., a Texas corporation (the “Company”), relating to the Incentive Plan of the Company, and the Registration Statement on Form S-3 (Registration No. 333-159237) of the Company (collectively, the “Registration Statements”) of the information contained in our reserve report that is summarized as in our summary letter dated February 9, 2012, relating to the oil and gas reserves and revenue, as of December 31, 2011, of certain interests of the company.

We hereby consent to all references to such reports, letters and/or to this firm in each of the Registration Statements and each Prospectus to which any such Registration Statement relates, and further consent to our being named as an expert in each of the Registration Statements and each Prospectus to which any such Registration Statement Relates.

 

LaRoche Petroleum consultants, Ltd.

/s/ William M. Kazmann

William M. Kazmann

Senior Partner

Houston, Texas

February 29, 2012

2435 North Central Expressway, Suite 1500 • Richardson, Texas 75080 • Phone (214) 363-3337 • Fax (214) 363-1608