X0202 4 2006-01-05 0 0000880115 CLAYTON WILLIAMS ENERGY INC /DE CWEI 0001329021 Clajon Holding CORP 6 DESTA DRIVE, SUITE 6500 MIDLAND TX 79705 0 0 1 0 Common Stock, $.10 par value 2006-01-05 4 P 0 100 41.30 A 4179909 I See Common Stock, $.10 par value 2006-01-05 4 P 0 100 41.56 A 4180009 I See Common Stock, $.10 par value 2006-01-05 4 P 0 200 41.86 A 4180209 I See Common Stock, $.10 par value 2006-01-05 4 P 0 600 41.91 A 4180809 I See Common Stock, $.10 par value 2006-01-05 4 P 0 300 42.00 A 4181109 I See Common Stock, $.10 par value 2006-01-05 4 P 0 100 42.01 A 4181209 I See Common Stock, $.10 par value 2006-01-05 4 P 0 200 42.02 A 4181409 I See Common Stock, $.10 par value 2006-01-05 4 P 0 900 42.03 A 4182309 I See Common Stock, $.10 par value 2006-01-05 4 P 0 100 42.07 A 4182409 I See Common Stock, $.10 par value 2006-01-05 4 P 0 100 42.08 A 4182509 I See Common Stock, $.10 par value 2006-01-05 4 P 0 91 42.09 A 4182600 I See Common Stock, $.10 par value 2006-01-05 4 P 0 609 42.11 A 4183209 I See Common Stock, $.10 par value 2006-01-05 4 P 0 200 42.12 A 4183409 I See Common Stock, $.10 par value 2006-01-05 4 P 0 1019 42.13 A 4184428 I See Common Stock, $.10 par value 2006-01-05 4 P 0 300 42.15 A 4184728 I See Common Stock, $.10 par value 2006-01-05 4 P 0 11 42.18 A 4184739 I See Common Stock, $.10 par value 2006-01-05 4 P 0 500 42.19 A 4185239 I See Common Stock, $.10 par value 2006-01-05 4 P 0 200 42.25 A 4185439 I See Common Stock, $.10 par value 2006-01-05 4 P 0 200 42.26 A 4185639 I See Common Stock, $.10 par value 2006-01-05 4 P 0 400 42.29 A 4186039 I See Common Stock, $.10 par value 2006-01-05 4 P 0 400 42.34 A 4186439 I See Common Stock, $.10 par value 2006-01-05 4 P 0 500 42.35 A 4186939 I See Common Stock, $.10 par value 2006-01-05 4 P 0 930 42.7505 A 4187869 I See These shares are owned by Clayton Williams Partnership, Ltd., a family limited partnership (3,993,085 shares) and CWPLCO, Inc. (194,784 shares). CWPLCO, Inc. is the wholly owned subsidiary of the reporting person and is the sole general partner of Clayton Williams Partnership, Ltd. /s/ Clajon Holding Corporation by L. Paul Latham, Vice President 2006-01-09