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
2013-12-31	BERGMARK, RICHARD L	Director, EVP & CFO	普通株式	売却	5,720	$190.95
2013-12-31	DAVIS, MONTY L	Chief Operating Officer	譲渡制限付株式ユニット	売却	13,622	$0.00
2013-12-31	DEMSHUR, DAVID M	Director, Chief Executive Officer	譲渡制限付株式ユニット	売却	30,635	$0.00
2013-12-31	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	売却	12,852	$190.95
2013-12-31	DEMSHUR, DAVID M	Director, Chief Executive Officer	普通株式	購入	30,635	$0.00
2013-12-31	ELVIG, MARK F	VP, Counsel & Secretary	普通株式	売却	1,060	$190.95
2013-12-31	ELVIG, MARK F	VP, Counsel & Secretary	譲渡制限付株式ユニット	売却	3,500	$0.00
2013-12-31	BERGMARK, RICHARD L	Director, EVP & CFO	普通株式	購入	13,950	$0.00
2013-10-21	DAVIS, MONTY L	Chief Operating Officer	普通株式	売却	1,414	$198.11
2013-10-21	DAVIS, MONTY L	Chief Operating Officer	普通株式	売却	3,070	$197.23
2013-10-21	DAVIS, MONTY L	Chief Operating Officer	普通株式	売却	1,220	$196.71
2013-08-07	BERGMARK, RICHARD L	Director, EVP & CFO	普通株式	売却	3,000	$150.11
2013-08-07	BERGMARK, RICHARD L	Director, EVP & CFO	普通株式	売却	15,200	$149.58
2013-08-07	BERGMARK, RICHARD L	Director, EVP & CFO	普通株式	売却	1,800	$148.75
2013-07-25	DAVIS, MONTY L	Chief Operating Officer	普通株式	売却	1,471	$149.30
2013-07-25	MILLER, CHARLES BRIGHAM	CAO & Treasurer	普通株式	売却	3,948	$148.25
2013-07-25	DAVIS, MONTY L	Chief Operating Officer	普通株式	売却	1,599	$150.00
2013-07-25	DAVIS, MONTY L	Chief Operating Officer	普通株式	売却	2,878	$148.54