Exhibit 21.1

Subsidiaries of the Company

The following are wholly owned subsidiaries of Carrizo Oil & Gas, Inc.:

Bandelier Pipeline Holding, LLC

Carrizo (Eagle Ford) LLC

Carrizo Marcellus Holding Inc.

Carrizo (Marcellus) LLC

Carrizo (Marcellus) WV LLC

Carrizo (Niobrara) LLC

Carrizo (Permian) LLC

Carrizo (Utica) LLC

CLLR, Inc.

Hondo Pipeline, Inc.

Mescalero Pipeline, LLC