自社株取引日	役員・従業員名	役員・従業員の役職	株式の種類	売却／購入	株数	株価
2011-07-27	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	2,610	$106.93
2011-07-27	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	8,810	$109.24
2011-07-27	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	1,000	$110.17
2011-07-26	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	18,000	$108.77
2011-07-26	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	500	$110.03
2011-07-26	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	109,314	$109.25
2011-07-25	MILLER, CHARLES BRIGHAM	Chief Accounting Officer	普通株式	売却	8,700	$111.22
2011-07-25	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	14,430	$110.79
2011-07-25	ELVIG, MARK F	VP, Counsel & Secretary	普通株式	売却	2,246	$108.15
2011-07-25	DAVIS, MONTY L	Chief Operating Officer	普通株式	売却	9,352	$111.63
2011-07-25	BERGMARK, RICHARD L	Director, EVP, CFO & Treasurer	普通株式	売却	43,627	$111.72
2011-07-25	BERGMARK, RICHARD L	Director, EVP, CFO & Treasurer	普通株式	売却	6,373	$112.04
2011-07-25	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	14,826	$111.17
2011-07-25	MILLER, CHARLES BRIGHAM	Chief Accounting Officer	普通株式	売却	1,300	$110.88
2011-06-30	ELVIG, MARK F	VP, Counsel & Secretary	譲渡制限付株式ユニット	売却	1,000	$0.00
2011-06-30	ELVIG, MARK F	VP, Counsel & Secretary	普通株式	購入	1,000	$0.00
2011-06-30	ELVIG, MARK F	VP, Counsel & Secretary	普通株式	売却	265	$111.54
2011-05-31	SODDERLAND, JAN WILLEM	Director	譲渡制限付株式ユニット	購入	1,469	$0.00