Fort Berthold Indian Reservation

Environmental Assessment Log - Oil and Gas Wells

Date Received Preparer Owner No. of Wells No. of Pads

2/11/2008 Kadrmas, Lee & Jackson Peak Energy Resources, Inc. 3 3

3/27/2008 Kadrmas, Lee & Jackson Peak North Dakota, LLC 6 6

4/7/2008 Kadrmas, Lee & Jackson Peak North Dakota, LLC 6 6

4/24/2008 Anderson Environmental 

Consulting Kodiak Oil & Gas Corporation 3 3

4/24/2008 SWCA Sundance Energy, Inc. 1 1

5/7/2008 SWCA Questar Exploration and Production 

Company

3 3

6/11/2008 SWCA Zenergy Operating Company, LLC 3 3

6/24/2008 SWCA Lone Star Land and Energy, LLC 7 7

6/25/2008 Kodiak Oil & Gas Corporation Kodiak Oil & Gas Corporation 4 2

8/8/2008 SWCA Sundance Energy, Inc. 11 11

8/22/2008 Kodiak Oil & Gas Corporation Kodiak Oil & Gas Corporation 12 6

9/30/2008 SWCA Zenergy Operating Company, LLC 4 4

10/7/2008 Kodiak Oil & Gas Corporation Kodiak Oil & Gas Corporation 8 5

10/22/2008 Western Plains Consulting, Inc. Petro Hunt, LLC 4 4

1/27/2009 SWCA Sundance Energy, Inc. 8 8

1/27/2009 SWCA Zenergy Operating Company, LLC 4 4

3/10/2009 SWCA Zenergy Operating Company, LLC 1 1

9/25/2009 Kodiak Oil & Gas Corporation Kodiak Oil & Gas Corporation 5 5

9/29/2009 SWCA Simray GP, LLC 4 2

10/12/2009 Kadrmas, Lee & Jackson Marathon Oil Company 3 3

10/12/2009 Kadrmas, Lee & Jackson Marathon Oil Company 4 4

10/14/2009 Kadrmas, Lee & Jackson Peak North Dakota, LLC 8 5

10/14/2009 SWCA Zenergy Operating Company, LLC 5 5

10/14/2009 SWCA Zenergy Operating Company, LLC 5 5

10/14/2009 SWCA Zenergy Operating Company, LLC 8 6

10/29/2009 Kadrmas, Lee & Jackson Petro Hunt, LLC 4 4

11/3/2009 SWCA EOG Resources, Inc. 5 5

11/9/2009 SWCA EOG Resources, Inc. 12 12

11/17/2009 SWCA Zenergy Operating Company, LLC 6 6

11/24/2009 SWCA Zenergy Operating Company, LLC 5 5

12/8/2009 Kodiak Oil & Gas Corporation Kodiak Oil & Gas Corporation 4 2

12/10/2009 SWCA Petro Hunt, LLC 2 1

12/15/2009 SWCA EOG Resources, Inc. 3 3

12/17/2009 SWCA Zenergy Operating Company, LLC 1 1

12/21/2009 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

2 2

12/30/2009 Kadrmas, Lee & Jackson Petro Hunt, LLC 4 4

1/5/2010 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

3 3

1/19/2010 SWCA Zenergy Operating Company, LLC 5 5

2/1/2010 SWCA Zenergy Operating Company, LLC 4 4

2/9/2010 SWCA Zenergy Operating Company, LLC 4 4

2/18/2010 PBS&J XTO Energy 10 1

3/17/2010 Kadrmas, Lee & Jackson Marathon Oil Company 2 2

3/23/2010 SWCA Zenergy Operating Company, LLC 5 5

3/26/2010 PBS&J XTO Energy 12 1

1 of 4
Date Received Preparer Owner No. of Wells No. of Pads

3/30/2010 PBS&J XTO Energy 1 1

4/1/2010 PBS&J XTO Energy 12 1

4/2/2010 SWCA Zenergy Operating Company, LLC 5 5

4/6/2010 PBS&J XTO Energy 12 1

4/8/2010 PBS&J XTO Energy 1 1

4/9/2010 Kadrmas, Lee & Jackson Spotted Hawk Development 2 2

4/9/2010 SWCA Zenergy Operating Company, LLC 1 1

4/12/2010 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

5 4

4/13/2010 Kadrmas, Lee & Jackson Marathon Oil Company 2 2

4/13/2010 PBS&J XTO Energy 6 1

4/22/2010 SWCA Petro Hunt, LLC 5 3

4/23/2010 Kadrmas, Lee & Jackson Marathon Oil Company 2 1

5/4/2010 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

3 3

5/13/2010 SWCA Simray GP, LLC 7 7

5/25/2010 SWCA Zenergy Operating Company, LLC 2 2

6/7/2010 SWCA Simray GP, LLC 2 2

6/11/2010 Kadrmas, Lee & Jackson Peak North Dakota, LLC 16 8

6/21/2010 SWCA Zenergy Operating Company, LLC 1 1

6/29/2010 SWCA Petro Hunt, LLC 3 2

7/1/2010 SWCA Enerplus Resources Corporation 14 7

7/28/2010 SWCA EOG Resources, Inc. 4 4

7/28/2010 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

4 2

7/28/2010 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

2 1

8/2/2010 Kadrmas, Lee & Jackson Peak North Dakota, LLC 11 6

8/5/2010 SWCA Zenergy Operating Company, LLC 5 5

8/16/2010 Kadrmas, Lee & Jackson Marathon Oil Company 2 1

8/23/2010 Kadrmas, Lee & Jackson Marathon Oil Company 2 1

9/1/2010 PBS&J XTO Energy 6 1

10/7/2010 PBS&J XTO Energy 6 1

10/8/2010 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

2 1

10/8/2010 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

2 1

10/8/2010 SWCA Zenergy Operating Company, LLC 4 3

10/13/2010 PBS&J XTO Energy 6 1

10/14/2010 SWCA EOG Resources, Inc. 14 4

10/19/2010 PBS&J XTO Energy 6 1

10/22/2010 Kadrmas, Lee & Jackson Marathon Oil Company 2 1

10/26/2010 PBS&J XTO Energy 6 1

10/27/2010 Kadrmas, Lee & Jackson Petro Hunt, LLC 6 1

11/1/2010 Kadrmas, Lee & Jackson Kodiak Oil & Gas Corporation 4 4

11/2/2010 Kadrmas, Lee & Jackson Kodiak Oil & Gas Corporation 3 3

11/4/2010 Kadrmas, Lee & Jackson Kodiak Oil & Gas Corporation 7 7

11/15/2010 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

6 1

11/16/2010 TEC Inc. Marathon Oil Company 2 1

11/23/2010 PBS&J XTO Energy 6 1

2 of 4
Date Received Preparer Owner No. of Wells No. of Pads

11/23/2010 PBS&J XTO Energy 6 1

11/24/2010 SWCA EOG Resources, Inc. 16 5

12/7/2010 PBS&J XTO Energy 6 1

12/7/2010 PBS&J XTO Energy 6 1

12/14/2010 PBS&J XTO Energy 6 1

12/14/2010 PBS&J XTO Energy 6 1

12/23/2010 Kadrmas, Lee & Jackson Marathon Oil Company 1 1

12/23/2010 Kadrmas, Lee & Jackson Marathon Oil Company 4 4

1/6/2011 PBS&J XTO Energy 6 1

1/11/2011 SWCA Enerplus Resources Corporation 20 8

1/19/2011 Kadrmas, Lee & Jackson Marathon Oil Company 1 1

1/20/2011 PBS&J XTO Energy 6 1

1/21/2011 Kadrmas, Lee & Jackson Kodiak Oil & Gas Corporation 16 5

2/17/2011 PBS&J XTO Energy 6 1

2/23/2011 SWCA Petro Hunt, LLC 7 4

4/12/2011 SWCA Petro Hunt, LLC 8 4

4/18/2011 SWCA EOG Resources, Inc. 4 1

5/12/2011 TEC Inc. Marathon Oil Company 7 3

5/13/2011 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

6 3

5/25/2011 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

4 2

6/2/2011 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

4 1

6/3/2011 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

10 1

6/3/2011 SWCA Enerplus Resources Corporation 12 6

6/29/2011 SWCA Enerplus Resources Corporation 22 7

7/8/2011 SWCA Dakota-3 E&P Company, LLC (Dakota-3) 19 4

7/11/2011 Kadrmas, Lee & Jackson Marathon Oil Company 4 2

7/14/2011 SWCA Slawson Exploration Company 3 1

7/22/2011 Carlson McCain Dakota-3 E&P Company, LLC (Dakota-3) 2 2

8/4/2011 SWCA EOG Resources, Inc. 4 1

8/9/2011 SWCA Dakota-3 E&P Company, LLC (Dakota-3) 4 1

8/9/2011 SWCA Enerplus Resources Corporation 8 2

8/15/2011 SWCA EOG Resources, Inc. 5 2

8/16/2011 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

15 4

8/16/2011 SWCA Dakota-3 E&P Company, LLC (Dakota-3) 4 2

8/19/2011 Kadrmas, Lee & Jackson Kodiak Oil & Gas Corporation 9 3

9/6/2011 SWCA Enerplus Resources Corporation 6 2

9/6/2011 Kadrmas, Lee & Jackson Kodiak Oil & Gas Corporation 12 4

9/7/2011 Kadrmas, Lee & Jackson Kodiak Oil & Gas Corporation 8 4

9/14/2011 Kadrmas, Lee & Jackson Petro Hunt, LLC 9 4

9/29/2011 Kadrmas, Lee & Jackson Petro Hunt, LLC 1 1

10/7/2011 SWCA Dakota-3 E&P Company, LLC (Dakota-3) 1 1

10/11/2011 Kadrmas, Lee & Jackson Petro Hunt, LLC 5 3

10/13/2011 Kadrmas, Lee & Jackson Marathon Oil Company 6 3

10/13/2011 Kadrmas, Lee & Jackson Marathon Oil Company 3 1

10/19/2011 Carlson McCain Dakota-3 E&P Company, LLC (Dakota-3) 1 1

11/1/2011 SWCA Dakota-3 E&P Company, LLC (Dakota-3) 1 1

3 of 4
Date Received Preparer Owner No. of Wells No. of Pads

11/4/2011 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

12 1

11/8/2011 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

4 1

11/8/2011 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

15 1

12/6/2011 SWCA Petro Hunt, LLC 6 1

12/12/2011 SWCA Enerplus Resources Corporation 16 5

12/16/2011 SWCA Dakota-3 E&P Company, LLC (Dakota-3) 16 4

12/28/2011 SWCA Petro Hunt, LLC 12 5

12/30/2011 SWCA Dakota-3 E&P Company, LLC (Dakota-3) 12 1

1/10/2012 SWCA Petro Hunt, LLC 6 2

1/17/2012 SWCA Dakota-3 E&P Company, LLC (Dakota-3) 20 5

1/17/2012 Carlson McCain Dakota-3 E&P Company, LLC (Dakota-3) 7 1

1/17/2012 Carlson McCain Dakota-3 E&P Company, LLC (Dakota-3) 7 1

1/24/2012 SWCA Petro Hunt, LLC 8 4

2/1/2012 SWCA Enerplus Resources Corporation 30 13

2/14/2012 Carlson McCain WPX Energy Williston, LLC 4 1

2/15/2012 Atkins XTO Energy 8 1

2/17/2012 SWCA Petro Hunt, LLC 7 3

3/30/2012 SWCA Petro Hunt, LLC 5 2

4/10/2012 Carlson McCain WPX Energy Williston, LLC 3 3

4/11/2012 SWCA WPX Energy Williston, LLC 3 1

4/11/2012 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

4 1

4/16/2012 SWCA Enerplus Resources Corporation 15 4

4/16/2012 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

4 1

4/16/2012 Kadrmas, Lee & Jackson Questar Exploration and Production 

Company

3 1

Total 990 466

Pad Density (wells per pad) = 

# Wells / # Pads 2

4 of 4