Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value

The following tables sets forth information about the Company’s assets and liabilities measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016, and indicate the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value (in thousands):

	Quoted Prices  in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs  (Level 2)		Significant Unobservable Inputs (Level 3)		Balance as of September 30, 2017
Assets:
NYMEX fixed price derivative contracts	$	—	$	2,575	$	—	$	2,575
NYMEX collars/basis differential swaps	$	—	$	—	$	42	$	42
Total Assets	$	—	$	2,575	$	42	$	2,617
Liabilities:
NYMEX fixed price derivative contracts	$	—	$	3,564	$	—	$	3,564
NYMEX collars/basis differential swaps	—		—		14		14
Total Liabilities	$	—	$	3,564	$	14	$	3,578

	Quoted Prices  in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs  (Level 2)		Significant Unobservable Inputs (Level 3)		Balance as of December 31, 2016
Assets:
NYMEX fixed price derivative contracts	$	—	$	35	$	—	$	35
NYMEX collars	—		—		19		19
Total Assets	$	—	$	35	$	19	$	54
Liabilities:
NYMEX fixed price derivative contracts	$	—	$	8,759	$	—	$	8,759
NYMEX collars/basis differential swaps	—		—		253		253
Total Liabilities	$	—	$	8,759	$	253	$	9,012

Schedule of Reciuring Fair Value Measurements Using Significant Unobservable Inputs

The following is additional information for the Company's recurring fair value measurements using significant unobservable inputs (Level 3 inputs) for the nine months ended September 30, 2017.

Unobservable inputs at January 1, 2017	$	(234	)
Changes in market value	189
Settlements during the period	73
Unobservable inputs at September 30, 2017	$	28