Northern Oil and Gas, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

STOCK OPTIONS/STOCK-BASED COMPENSATION AND WARRANTS (Details)

STOCK OPTIONS/STOCK-BASED COMPENSATION AND WARRANTS (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Number of Shares [Roll Forward]
Exercised (in shares)	(100,000)	(10,091)	(10,500)
Currently Outstanding Options [Abstract]
Share-based compensation expense			$ 500,000
2013 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares were authorized for grant (in shares)	1,500,000
Directors [Member]
Number of Shares [Roll Forward]
Exercised (in shares)	(100,000)	(10,091)	(10,500)
Restricted Stock Awards [Member]
Restricted Stock Awards [Abstract]
Unrecognized compensation expense	5,600,000
Percent of forfeiture rate assumed for restricted stock (in hundredths)	0.00%
Restricted Stock Awards Activity [Roll forward]
Restricted Shares Outstanding at the Beginning of the Year (in shares)	592,565	777,437	1,216,992
Shares Granted (in shares)	299,416	353,596	837,239
Shares Forfeited (in shares)	0	(39,049)	(628,550)
Lapse of Restrictions (in shares)	(353,482)	(499,419)	(648,244)
Restricted Shares Outstanding at the End of the Year (in shares)	538,499	592,565	777,437
Restricted Stock Awards, Additional Disclosures [Abstract]
Restricted Shares Outstanding, Weighted-Average Price at the Beginning of the Year (in dollars per share)	16.84	18.93	$ 19.87
Shares Granted, Weighted-Average Price (in dollars per share)	12.09	15.33	$ 19.91
Shares Forfeited, Weighted-Average Price (in dollars per share)	0	16.78	$ 19.08
Lapse of Restrictions, Weighted-Average Price (in dollars per share)	17.84	19.03	$ 21.83
Restricted Shares Outstanding, Weighted-Average Price at the End of the Year (in dollars per share)	13.54	16.84	$ 18.93
Currently Outstanding Options [Abstract]
Unvested options outstanding (in shares)	538,499	592,565	777,437
Stock Option Awards [Member]
Restricted Stock Awards Activity [Roll forward]
Restricted Shares Outstanding at the Beginning of the Year (in shares)	0	0
Restricted Shares Outstanding at the End of the Year (in shares)	0	0	0
Stock Option Awards [Abstract]
Shares granted (in shares)	0	0	0
Shares granted (in dollars per share)	0	0	$ 0
Options remain outstanding but unexercised (in shares)	141,872	241,872	251,963
Number of Shares [Roll Forward]
Beginning Balance (in shares)	241,872	251,963	262,463
Shares granted (in shares)	0	0	0
Exercised (in shares)	(100,000)	(10,091)	(10,500)
Forfeited (in shares)	0	0	0
Outstanding at period end (in shares)	141,872	241,872	251,963
Exercisable (in shares)	141,872	241,872	251,963
Ending Vested (in shares)	141,872	241,872	251,963
Weighted Average Exercise Price [Abstract]
Beginning Balance (in dollars per share)	0	0	$ 0
Granted (in dollars per share)	0	0	$ 0
Exercised (in dollars per share)	5.18	5.18	$ 5.18
Forfeited (in dollars per share)	0	0	$ 0
Outstanding at period end (in dollars per share)	5.18	5.18	$ 5.18
Exercisable (in dollars per share)	5.18	5.18	$ 5.18
Ending Vested (in dollars per share)	5.18	5.18	$ 5.18
Weighted Average Fair Value of Options Granted During Year (in dollars per share)	0	0	$ 0
Remaining Contractual Term [Abstract]
Outstanding at period end (in years)	2 years 9 months 18 days	3 years 9 months 18 days	4 years 9 months 18 days
Exercisable (in years)	2 years 9 months 18 days	3 years 9 months 18 days	4 years 9 months 18 days
Ending Vested (in years)	2 years 9 months 18 days	3 years 9 months 18 days	4 years 9 months 18 days
Intrinsic Value [Abstract]
Outstanding at end of period	66,680	2,392,000	2,933,000
Exercisable	66,680	2,392,000	2,933,000
Ending Vested	66,680	2,392,000	2,933,000
Currently Outstanding Options [Abstract]
Options expired during period (in shares)	0	0	0
Share-based compensation expense	0	0	$ 0
Unvested options outstanding (in shares)	0	0	0
Stock Option Awards [Member] \| 2006 Incentive Stock Option Plan [Member]
Stock Option Awards [Abstract]
Shares granted (in shares)	560,000
Shares granted (in dollars per share)	5.18
Number of Shares [Roll Forward]
Shares granted (in shares)	560,000
Weighted Average Exercise Price [Abstract]
Weighted Average Fair Value of Options Granted During Year (in dollars per share)	5.18
Stock Option Awards [Member] \| Directors [Member] \| 2006 Incentive Stock Option Plan [Member]
Stock Option Awards [Abstract]
Shares granted (in shares)	500,000
Number of Shares [Roll Forward]
Shares granted (in shares)	500,000
Stock Option Awards [Member] \| Employee [Member] \| 2006 Incentive Stock Option Plan [Member]
Stock Option Awards [Abstract]
Shares granted (in shares)	60,000
Number of Shares [Roll Forward]
Shares granted (in shares)	60,000