|
Date |
Name |
Title |
Volume |
Trade Price |
Holding Change |
|
5/21/2013
|
WEXFORD CAPITAL LP
|
N/A
|
-42,652
|
$33.27
|
-1.20%
|
|
5/20/2013
|
WEXFORD CAPITAL LP
|
N/A
|
-161,766
|
$33.13
|
-4.37%
|
|
5/17/2013
|
WEXFORD CAPITAL LP
|
N/A
|
-100,000
|
$32.62
|
-2.63%
|
|
5/15/2013
|
WEXFORD CAPITAL LP
|
N/A
|
-229,600
|
$34.08
|
-5.69%
|
|
5/14/2013
|
WEXFORD CAPITAL LP
|
N/A
|
-102,100
|
$33.89
|
-2.47%
|
|
5/13/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-130,568
|
$33.94
|
-3.06%
|
|
5/10/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-115,238
|
$33.58
|
-2.63%
|
|
5/9/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-137,400
|
$33.87
|
-3.04%
|
|
5/8/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-50,000
|
$33.85
|
-1.95%
|
|
5/8/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-154,776
|
$33.84
|
-3.31%
|
|
5/7/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-101,000
|
$33.91
|
-2.12%
|
|
5/6/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-245,000
|
$34.05
|
-8.72%
|
|
5/6/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-106,300
|
$34.13
|
-2.18%
|
|
5/2/2013
|
Jensen W Mac
|
SVP, Business Development
|
-456
|
$33.26
|
-1.60%
|
|
3/28/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-5,606
|
$27.17
|
-0.11%
|
|
3/28/2013
|
Thom Tiffany J
|
Senior Vice President & CFO
|
-200
|
$26.95
|
-0.46%
|
|
3/28/2013
|
Thom Tiffany J
|
Senior Vice President & CFO
|
-4,022
|
$26.83
|
-10.21%
|
|
3/28/2013
|
Thom Tiffany J
|
Senior Vice President & CFO
|
-4,111
|
$26.87
|
-9.45%
|
|
3/28/2013
|
Thom Tiffany J
|
Senior Vice President & CFO
|
8,333
|
$8.90
|
23.55%
|
|
3/27/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-50,000
|
$27.21
|
-1.01%
|
|
3/26/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-71,577
|
$27.58
|
-1.43%
|
|
3/25/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-74,184
|
$27.37
|
-1.46%
|
|
3/22/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-32,305
|
$27.36
|
-0.63%
|
|
3/21/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-37,200
|
$27.58
|
-0.72%
|
|
3/20/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-50,000
|
$27.64
|
-0.96%
|
|
3/19/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-10,000
|
$27.67
|
-0.35%
|
|
3/19/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-7,250
|
$27.73
|
-0.14%
|
|
3/18/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-71,100
|
$28.29
|
-1.35%
|
|
3/15/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-100,000
|
$28.50
|
-3.42%
|
|
3/15/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-72,700
|
$28.70
|
-1.36%
|
|
3/14/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-77,856
|
$28.19
|
-1.43%
|
|
3/14/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-147,061
|
$28.10
|
-4.79%
|
|
3/13/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-49,301
|
$27.85
|
-0.90%
|
|
3/13/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-41,000
|
$27.87
|
-1.32%
|
|
3/12/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-71,351
|
$27.89
|
-1.29%
|
|
3/12/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-84,749
|
$27.91
|
-2.65%
|
|
3/11/2013
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-105,000
|
$28.36
|
-1.86%
|
|
3/11/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-140,000
|
$28.23
|
-4.20%
|
|
3/8/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-82,398
|
$27.75
|
-2.41%
|
|
3/8/2013
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-4,792
|
$27.88
|
-0.14%
|
|
2/7/2013
|
Broussard Andre J
|
SVP - Geosciences
|
-545
|
$25.37
|
-1.70%
|
|
2/3/2013
|
HANNA GARY C
|
President and CEO
|
-1,109
|
$24.82
|
-2.78%
|
|
2/3/2013
|
Williams Chad E
|
Senior VP - Production
|
-920
|
$24.82
|
-3.96%
|
|
2/3/2013
|
Thom Tiffany J
|
Senior Vice President & CFO
|
-1,029
|
$24.82
|
-3.51%
|
|
2/3/2013
|
Jensen W Mac
|
SVP, Business Development
|
-1,034
|
$24.82
|
-4.23%
|
|
2/3/2013
|
Cedro David
|
Senior VP, CAO, Treasurer, Sec
|
-886
|
$24.82
|
-3.83%
|
|
2/3/2013
|
Broussard Andre J
|
SVP - Geosciences
|
-1,034
|
$24.82
|
-3.98%
|
|
1/18/2013
|
HANNA GARY C
|
President and CEO
|
-2,078
|
$23.99
|
-4.96%
|
|
1/18/2013
|
Cedro David
|
Senior VP, CAO, Treasurer, Sec
|
-611
|
$23.99
|
-2.58%
|
|
1/18/2013
|
Williams Chad E
|
Senior VP - Production
|
-611
|
$23.99
|
-2.56%
|
|
1/18/2013
|
Thom Tiffany J
|
Senior Vice President & CFO
|
-998
|
$23.99
|
-3.29%
|
|
12/27/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-799
|
$22.52
|
-0.01%
|
|
12/26/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-1,325
|
$22.78
|
-0.02%
|
|
12/24/2012
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-500
|
$23.04
|
-0.01%
|
|
12/21/2012
|
CARLSON CAPITAL L P
|
Senior Executive Officer
|
-266,100
|
$23.05
|
-7.22%
|
|
12/19/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-27,000
|
$22.43
|
-0.48%
|
|
12/18/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-71,920
|
$21.83
|
-1.25%
|
|
12/17/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-100,943
|
$21.41
|
-1.78%
|
|
12/14/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-20,413
|
$20.81
|
-0.35%
|
|
12/13/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-10,038
|
$20.95
|
-0.17%
|
|
12/11/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-38,792
|
$21.43
|
-0.66%
|
|
12/7/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-29,300
|
$21.51
|
-0.49%
|
|
12/6/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-69,258
|
$21.45
|
-1.15%
|
|
12/5/2012
|
Broussard Andre J
|
SVP - Geosciences
|
-1,000
|
$21.40
|
-4.54%
|
|
12/5/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-115,000
|
$21.35
|
-1.87%
|
|
12/4/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-28,081
|
$21.06
|
-0.46%
|
|
12/3/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-55,000
|
$21.06
|
-0.88%
|
|
11/30/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-63,242
|
$20.98
|
-1.01%
|
|
11/29/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-72,545
|
$20.69
|
-1.14%
|
|
11/28/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-73,465
|
$19.98
|
-1.14%
|
|
11/27/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-76,816
|
$19.97
|
-1.18%
|
|
11/26/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-26,183
|
$19.71
|
-0.40%
|
|
11/23/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-6,584
|
$19.99
|
-0.10%
|
|
11/21/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-20,000
|
$19.88
|
-0.31%
|
|
11/20/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-18,400
|
$19.93
|
-0.28%
|
|
11/19/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-20,142
|
$20.34
|
-0.31%
|
|
11/1/2012
|
Broussard Andre J
|
SVP - Geosciences
|
-428
|
$22.45
|
-1.90%
|
|
11/1/2012
|
Cedro David
|
Senior VP, CAO, Treasurer, Sec
|
-392
|
$22.45
|
-1.89%
|
|
11/1/2012
|
Jensen W Mac
|
SVP, Business Development
|
-395
|
$22.45
|
-1.82%
|
|
11/1/2012
|
Williams Chad E
|
Senior VP - Production
|
-427
|
$22.45
|
-2.03%
|
|
11/1/2012
|
Thom Tiffany J
|
Senior Vice President & CFO
|
-333
|
$22.45
|
-1.20%
|
|
6/29/2012
|
Williams Chad E
|
Senior VP - Production
|
-1,700
|
$16.90
|
-7.48%
|
|
6/28/2012
|
CARLSON CAPITAL L P
|
Substantial Shareholder
|
-201,835
|
$16.23
|
-5.19%
|
|
6/27/2012
|
CARLSON CAPITAL L P
|
Substantial Shareholder
|
-249,116
|
$16.36
|
-6.02%
|
|
6/26/2012
|
CARLSON CAPITAL L P
|
Substantial Shareholder
|
-100,000
|
$16.11
|
-2.36%
|
|
5/25/2012
|
Jensen W Mac
|
SVP, Business Development
|
-613
|
$15.77
|
-3.31%
|
|
5/18/2012
|
HANNA GARY C
|
President and CEO
|
5,000
|
$14.65
|
13.54%
|
|
5/2/2012
|
Jensen W Mac
|
SVP, Business Development
|
-441
|
$16.09
|
-2.32%
|
|
3/30/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-2,101
|
$16.56
|
-0.03%
|
|
3/29/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-4,255
|
$16.48
|
-0.06%
|
|
3/28/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-31,174
|
$16.65
|
-0.47%
|
|
3/27/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-95,900
|
$17.45
|
-1.43%
|
|
3/26/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-134,744
|
$17.68
|
-1.95%
|
|
3/23/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-166,088
|
$17.42
|
-2.36%
|
|
3/22/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-7,400
|
$17.05
|
-0.11%
|
|
3/21/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-25,823
|
$17.64
|
-0.37%
|
|
3/20/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-14,623
|
$18.00
|
-0.21%
|
|
3/19/2012
|
WEXFORD CAPITAL LP
|
Senior Executive Officer
|
-19,024
|
$18.33
|
-0.27%
|
|
2/7/2012
|
Broussard Andre J
|
SVP - Geosciences
|
-441
|
$16.71
|
-2.34%
|
|
1/18/2012
|
PEPER JOHN H
|
EVP, Gen Counsel and Corp Sec
|
-770
|
$15.97
|
-5.12%
|