Insider NameBuy/SellAmountShares Change
Nov 30, 2017Dec 04, 2017Pantermuehl Russell
EVP Reservoir Engineering
Sell$111.45$222,908-3.11%
Nov 10, 2017Nov 14, 2017Dick Teresa L.
CFO
EVP
Assist. Sec.
Sell$111.79$558,928-13.60%
Nov 09, 2017Nov 13, 2017Pantermuehl Russell
EVP Reservoir Engineering
Sell$109.55$438,202-5.86%
Oct 27, 2017Oct 31, 2017Hollis Michael L.
Pres
COO
Sell$105$210,000-2.63%
Oct 16, 2017Oct 17, 2017Hollis Michael L.
Pres
COO
Sell$102.44$204,874-2.56%
Oct 02, 2017Oct 04, 2017Hollis Michael L.
Pres
COO
Sell$100$100,000-1.27%
Sep 20, 2017Sep 21, 2017Pantermuehl Russell
EVP Reservoir Engineering
Sell$96.89$387,564-5.54%
Sep 19, 2017Sep 21, 2017Molnar Paul
EVP Exploration
Bus Dev
Sell$95.04$475,177-10.51%
Sep 05, 2017Sep 07, 2017Van'T Hof Matthew Kaes
SVP - Strategy
Corp Dev
Sell$91.76$14,223-3.13%
Aug 30, 2017Sep 01, 2017Van'T Hof Matthew Kaes
SVP - Strategy
Corp Dev
Sell$88.49$57,516-11.61%
Jul 20, 2017Jul 24, 2017Hollis Michael L.
Pres
COO
Sell$95$95,000-1.25%
May 23, 2017May 25, 2017Plaumann Mark Lawrence
Dir
Sell$101.52$101,524-13.32%
May 17, 2017May 19, 2017West Steven E
Dir
Buy$103.45$248,270+50.00%
Mar 17, 2017Mar 21, 2017Dick Teresa L.
CFO
EVP
Assist. Sec.
Sell$105.06$210,118-5.16%
Mar 17, 2017Mar 21, 2017Pantermuehl Russell
EVP Reservoir Engineering
Sell$105$210,000-2.69%
Mar 15, 2017Mar 17, 2017Pantermuehl Russell
EVP Reservoir Engineering
Sell$103.01$206,028-2.62%
Mar 07, 2017Mar 09, 2017Hollis Michael L.
Pres
COO
Sell$105.34$158,016-1.84%
Mar 07, 2017Mar 09, 2017Pantermuehl Russell
EVP Reservoir Engineering
Sell$105.13$420,527-4.99%
Mar 07, 2017Mar 09, 2017Dick Teresa L.
CFO
EVP
Assist. Sec.
Sell$106.44$159,661-3.73%
Mar 01, 2017Mar 03, 2017Pantermuehl Russell
VP Reservoir Engineering
Sell$105.34$526,713-5.87%
Feb 21, 2017Feb 23, 2017Stice Travis D.
CEO
Sell$107.11$5M-18.00%
Feb 21, 2017Feb 23, 2017Molnar Paul
VP Geoscience
Sell$106.98$990,922-16.30%
Feb 21, 2017Feb 23, 2017Hollis Michael L.
VP
COO
Sell$107.94$2M-15.24%
Feb 21, 2017Feb 23, 2017Dick Teresa L.
CFO
SVP
Sell$109.06$119,961-2.66%
Feb 21, 2017Feb 23, 2017Pantermuehl Russell
VP Reservoir Engineering
Sell$108.04$1M-10.50%
Feb 21, 2017Feb 23, 2017Holder Randall J
VP
GC
Secretary
Sell$106.98$2M-70.58%
Feb 17, 2017Feb 22, 2017Plaumann Mark Lawrence
Dir
Sell$107.35$203,967-20.20%
Nov 30, 2016Dec 02, 2016Pantermuehl Russell
VP Reservoir Engineering
Sell$107.84$431,376-5.92%
Dec 01, 2016Dec 02, 2016Dick Teresa L.
CFO
SVP
Sell$111.9$279,754-10.86%
Nov 17, 2016Nov 21, 2016Dick Teresa L.
CFO
SVP
Sell$100.01$250,013-9.80%
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