X0202 0001143313 AMERICAN STOCK EXCHANGE LLC 0001129162 CAP ROCK ENERGY CORP 001-31267

500 WEST WALL STREET SUITE 400 MIDLAND TX TEXAS 79701

2142373223 Common Stock 17 CFR 240.12d2-2(a)(3) Kerri Ramirez Manager, Corporate Actions and Proxy Rulings 2006-05-11