Derivative Instruments and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2017

Table Text Blocks

Schedule of various commodity derivatives in place to offset uncertain price fluctuations that could affect the entity's future operations

	September 30, 2017
						Weighted		Final
		Low		High		Average		Expiration
Oil swaps	Exercise price	$	44.60	$	85.60	$	51.97	December 2020
	Offset exercise price	$	42.00	$	42.00	$	42.00
	Net barrels per month		55,000		216,000		116,462
Natural gas swaps	Exercise price	$	2.76	$	4.57	$	2.98	December 2020
	Net MMbtu per month		700,000		1,890,000		1,169,231
Natural gas liquids swaps	Exercise price	$	18.06	$	72.52	$	29.08	December 2018
	Barrels per month		130,000		145,000		139,333
Natural gas basis swaps	Exercise price	$	(0.50)	$	(0.30)	$	(0.39)	March 2019
	Net MMbtu per month		300,000		800,000		564,706
Oil collars	Puts (floors)	$	45.00	$	50.00	$	48.52	December 2019
	Calls (ceilings)	$	56.60	$	61.00	$	59.64
	Net barrels per month		65,000		73,000		67,500
Natural gas collars	Puts (floors)	$	2.55	$	2.55	$	2.55	December 2019
	Calls (ceilings)	$	3.08	$	3.41	$	3.19
	Net barrels per month		950,000		1,050,000		990,833

Schedule of commodity derivative contracts that are netted on Consolidated Balance Sheet

					Net Amounts
			Gross		of Assets /		Gross Amounts
	Gross Amounts		Amounts		Liabilities		Not
	of Recognized		Offset in the		Presented in		Offset in the
	Assets /		Balance		the Balance		Balance
(in thousands of dollars)	Liabilities		Sheet		Sheet		Sheet		Net Amount
September 30, 2017
Commodity derivative contracts
Assets	$	18,805	$	(9,607)	$	9,198	$	—	$	9,198
Liabilities		(30,658)		9,607		(21,051)		—		(21,051)
December 31, 2016
Commodity derivative contracts
Assets	$	79,649	$	(20,805)	$	58,844	$	—	$	58,844
Liabilities		(36,664)		20,805		(15,859)		—		(15,859)