0000897423-99-000080 SC 13G 1 19990319 HBK INVESTMENTS L P HBK INVESTMENTS L.P. WESTOVER INVESTMENTS L.P. COTTON VALLEY RESOURCES CORP 0001023947 1382 980164357 A6 0630 SC 13G 34 005-50439 99569215 6510 ABRAM ROD STE 300 DALLAS TX 75231 2142216500 6510 ABRAM RD STE 300 DALLAS TX 75231 HBK INVESTMENTS L P 0001011443 752622581 DE 1231 SC 13G 777 MAIN STREET SUITE 2750 FORT WORTH TX 76102 8178706100 777 MAIN STREET SUITE 2750 FORT WORTH TX 76102 SC 13G 1 000089742399000080-001-seq1-sc-13g.txt COTTON VALLEY RESOURCES CORPORATION SCHEDULE 13G