Members
Anadarko Petroleum Corporation
1201 Lake Robbins Drive
The Woodlands, TX 77380
Apache Corporation
2000 Post Oak Boulevard, Suite 100
Houston, TX 77056-4400
Cabot Oil & Gas Corporation
Three Memorial City Plaza
840 Gessner Road, Suite 1400
Houston, TX 77024
Chesapeake Energy Corporation
6100 North Western Avenue
Oklahoma City, OK 73118
Cimarex Energy Co.
1700 Lincoln St., Suite 3700
Denver, CO 80203
Concho Resources, Inc.
600 West Illinois Ave, Suite 100
Midland, TX 79701
Devon Energy Corporation
333 West Sheridan Avenue
Oklahoma City, OK 73102
Diamondback Energy, Inc.
500 West Texas Avenue, Suite 1200
Midland, TX 79701
EnCana Corporation
370 – 17 Street, Suite 1700
Denver, CO 80202
EnerVest, Ltd.
1001 Fannin Street, Suite 800
Houston, TX 77002
EOG Resources, Inc.
1111 Bagby, Sky Lobby 2
Houston, TX 77002
Extraction Oil & Gas Inc
370 17th Street, Suite 5300
Denver, CO 80202
Gulfport Energy Corporation
3001 Quail Springs Parkway
Oklahoma City, OK 73134
Marathon Oil Corporation
5555 San Felipe Street
Houston, TX 77056
Noble Energy, Inc.
1001 Noble Energy Way
Houston, TX 77070
Oasis Petroleum Inc.
1001 Fannin Street, Suite 1500
Houston, TX 77002
Occidental Oil & Gas Corporation
5 Greenway Plaza
Houston, TX 77046-0506
Parsely Energy, Inc.
303 Colorado Street, Suite 3000
Austin, TX 78701
PDC Energy, Inc.
1775 Sherman Street, Suite 3000
Denver, CO 80203
Pioneer Natural Resources Company
5205 N. O’Connor Blvd., Suite 200
Irving, TX 75039
QEP Resources, Inc.
1050 17th Street, Suite 500
Denver, CO 80265
Range Resources Corporation
100 Throckmorton Street, Suite 1200
Fort Worth, TX 76102
Seneca Resources Corporation
1201 Louisiana St., Suite 2600
Houston, TX 77002
SM Energy Company
1775 Sherman Street, Suite 1200
Denver, CO 80203
Southwestern Energy Company
10000 Energy Drive
Spring, TX 77389
Ultra Petroleum Corp.
400 North Sam Houston Parkway East
Suite 1200
Houston, TX 77060
Whiting Petroleum Corporation
1700 Broadway, Suite 2300
Denver, CO 80290-2300
WPX Energy, Inc.
One Williams Center
Tulsa, OK 74172
XTO Energy, Inc.
22777 Springwoods Pkwy.
Spring, TX 77389