Carrizo Oil & Gas, Inc. is an energy company. The Company is engaged in the exploration, development and production of oil and gas from resource plays located in the United States. Its operations are focused in proven, producing oil and gas plays in the Eagle Ford Shale in South Texas, the Delaware Basin in West Texas, the Utica Shale in Ohio, the Niobrara Formation in Colorado, and the Marcellus Shale in Pennsylvania. The Company has a total production of over 13.4 million barrels of oil equivalent (MMBoe) per year. The Company's proved reserves of over 170.6 MMBoe are over 64% crude oil, 12% natural gas liquids (NGLs) and 24% natural gas. It operates over 90% of the wells in Eagle Ford in which it holds an interest. It holds an average interest of over 88% in these operated wells. It owns leases covering approximately 291,610 gross (165,470 net) acres in the Eagle Ford, Niobrara, Utica and the Delaware Basin areas. It operates over 70 gross wells drilled in the Eagle Ford.