Quarterly report pursuant to Section 13 or 15(d)

7. Oil and Gas Properties (Details-Wells)

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7. Oil and Gas Properties (Details-Wells) - Wells
Jun. 21, 2016
Sep. 30, 2015
Productive oil wells, gross 357 341
Productive oil wells, net 11.01 10.88
North Dakota [Member]    
Productive oil wells, gross 352 336
Productive oil wells, net 10.64 10.51
Montana [Member]    
Productive oil wells, gross 5 5
Productive oil wells, net 0.37 0.37