Derivative Instruments And Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2013

Components of Gain (Loss) on Derivative Instruments


	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
	(in thousands)
Derivative contracts:
Unrealized gain due to change in fair value	$	34,683	$	30,500	$	27,300	$	13,958
Realized gain (loss) on settlement		2,247		(195)		(4,321)		(3,715)
Total gain on derivative instruments	$	36,930	$	30,305	$	22,979	$	10,243

Oil Contract [Member] | Fixed Price Swaps [Member]

Schedule of Derivative Instruments Outstanding


	Fixed-Price Swaps
	Daily Average				Average
	Volume		Volume		Swap Price
Remaining Contract Term	(Bbls)		(Bbls)		($/Bbl)
July 2013		11,445		354,800		104.87
August 2013		6,219		192,800		104.70
September 2013		6,233		187,000		104.45
October 2013		5,719		177,300		103.94
November 2013		6,233		187,000		103.93
December 2013		9,156		283,850		103.24
2013 Total		7,515		1,382,750		104.21

January 2014		11,250		348,750		101.08
February 2014		11,250		315,000		101.08
March 2014		11,250		348,750		101.08
April 2014		10,250		307,500		101.26
May 2014		10,250		317,750		101.26
June 2014		10,250		307,500		101.26
July 2014		10,250		317,750		101.26
August 2014		6,000		186,000		101.00
September 2014		6,000		180,000		101.00
October 2014		6,000		186,000		101.00
November 2014		6,000		180,000		101.00
December 2014		6,000		186,000		101.00
2014 Total		8,715		3,181,000		101.13

January 2015 - December 2015		1,500		547,500		97.70

Oil Contract [Member] | Collars [Member]

Schedule of Derivative Instruments Outstanding


	Collars
	Daily Average				Average
	Volume		Volume		Swap Price
Remaining Contract Term	(Bbls)		(Bbls)		($/Bbl)
July 2013—December 2013		1,000		184,000	$	80.00/104.10

Gas Contract [Member] | Fixed Price Swaps [Member]

Schedule of Derivative Instruments Outstanding


	Fixed-Price Swaps
	Daily Average				Average
	Volume		Volume		Swap Price
Remaining Contract Term	(Mmbtu)		(Mmbtu)		($/Mmbtu)
July 2013		9,000		279,000		3.53
August 2013		8,500		263,500		3.55
September 2013		8,500		255,000		3.55
October 2013		8,000		248,000		3.58
November 2013		7,500		225,000		3.67
December 2013		6,500		201,500		3.83
2013 Total		8,000		1,472,000		3.61

January 2014 - December 2014		5,000		1,825,000		4.01
January 2015 - December 2015		4,300		1,569,500		4.31

- Definition

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

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