Stock Options (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2016

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

The following tables summarize certain information related to outstanding stock options under the Lonestar Resources Limited 2012 Employee Share Option Plan and the Lonestar Resources US Inc. 2016 Incentive Plan, which replaced the Lonestar Resources Limited 2012 Employee Share Option Plan following the Reorganization:


	Shares			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (in years)
Outstanding at December 31, 2015		849,936		$	15.50		1.0
Options vested and exercisable at December 31, 2015		807,686			15.50		1.0
Granted		35,000			15.00		2.0
Exercised		—			—		—
Canceled/Expired		(64,667	)		18.00		—
Forfeited		—			—		—

Outstanding at September 30, 2016		820,269		$	15.00		0.5
Options vested and exercisable at September 30, 2016		778,019		$	15.00		0.5


	Shares			Weighted Average Fair Value per Share		Weighted Average Exercise Price per share		Weighted Average Remaining Contractual Term (in years)
Outstanding non-vested options at December 31, 2015		42,250		$	9.00	$	15.50		1.0
Granted		35,000			1.90		15.00		2.25
Vested		(35,000	)		1.90		15.00		2.25
Forfeited		—			—		—		—

Outstanding non-vested options at September 30, 2016		42,250		$	9.00	$	15.50		0.25

The following tables summarize certain information related to outstanding stock options under the 2012 Plan as of and for the years ended December 31, 2015 and 2014:


	Shares			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (in years)
Options outstanding at December 31,2013		1,477,685		$	16.00		3.0
Granted		410,822			18.00		3.0
Exercised		—			—		—
Canceled/Expired		(24,667	)		18.00		1.5
Forfeited		(249,570	)		15.00		2.0

Outstanding at December 31, 2014		1,614,270			16.00		2.0
Options vested and exercisable at December 31, 2014		970,155		$	16.00		2.0

Granted		160,000			10.00		1.0
Exercised		—			—		—
Canceled/Expired		(50,000	)		12.00		—
Forfeited		(24,398	)		12.00		—

Outstanding at December 31, 2015		1,699,872			15.50		1.0
Options vested and exercisable at December 31, 2015		1,615,372		$	15.50		1.0


	Shares			Weighted Average Fair Value per Share		Weighted Average Exercise Price per share		Weighted Average Remaining Contractual Term (in years)
Outstanding non-vested options at December 31, 2013		882,456		$	11.50	$	15.00		3.0
Granted		410,822			4.50		18.00		3.0
Vested		(399,593	)		4.50		16.00		3.0
Forfeited		(249,570	)		4.50		15.00		3.0

Outstanding non-vested options at December 31, 2014		644,115		$	4.50	$	16.00		2.0

Granted		160,000			2.40		10.00		1.0
Vested		(695,217	)		4.00		15.50		1.0
Forfeited		(24,398	)		4.50		15.50		—

Outstanding non-vested options at December 31, 2015		84,500		$	4.50	$	15.50		1.0