0000950129-07-006252 Sample Contracts

CONCHO RESOURCES INC. 11,845,000 Shares of Common Stock Underwriting Agreement
Underwriting Agreement • December 18th, 2007 • Concho Resources Inc • Crude petroleum & natural gas • New York

A copy of our preliminary prospectus can be accessed through the following link: http://www.sec.gov/Archives/edgar/data/1358071/000095012907006015/h51487a1sv1za.htm