Restatement of Consolidated Financial Statements:

We have made one correction to the 2010 financial statements, two separate corrections to the 2011 financial statements and one correction to the 2012 financial statements relating to our use of the composite depreciation method.

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The first correction to the 2011 and 2010 financial statements - which was reflected in our Original 2012 Form 10-K - related to a misapplication of the composite depreciation method. Upon the normal retirement of an asset within a composite group, our practice generally had been to extend the depreciable life of that composite group beyond its original estimated useful life. In conjunction with the preparation of our financial statements in 2012, management determined that this methodology was not appropriate. As a result, we revised the useful lives of our composite groups to their original estimated useful life (ascribed upon acquisition) and corrected previously computed depreciation expense (and accumulated depreciation). These adjustments are shown in the tables below under the heading “immaterial correction.” We titled such amount immaterial because we had originally evaluated the amount and nature of these adjustments and concluded that they were not material to either our prior annual or quarterly financial statements.

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The second correction, which impacts the 2011 and 2012 financial statements - reflects a determination subsequent to our Original 2012 Form 10-K filing that a disposition from our composite group of assets was considered to be unusual. In certain situations under the composite method, disposals are considered unusual and, accordingly, losses are not included in the composite depreciation pool but are rather charged immediately to expense. In 2013, the Partnership's initial determination of whether a specific asset retired under the composite method of depreciation in 2011 was normal was reviewed in connection with responding to an open SEC comment letter. We ultimately concluded that such disposition was unusual and that a $8.8 million charge should be reflected in the 2011 financial statements. The financial statements are being restated herein to make this correction (and the related adjustments are shown in the table below under the heading "Restatement.")

The tables below reflect the impact on the financial statements of all of the above described corrections. The "As originally filed" amounts in the 2011 and 2010 columns represent amounts as filed in the Partnership's Original 2011 Form 10-K filed on February 29, 2012. The "As originally filed" amounts in the 2012 columns represent amounts as filed in the Partnership's Original 2012 Form 10-K filed on February 25, 2013. The "As restated with immaterial correction" amounts in the 2011 and 2010 columns represent amounts as filed in the Partnership's Original 2012 Form 10-K filed on February 25, 2013.



Balance Sheets
(In thousands)	12/31/2012			12/31/2011
Accumulated depreciation
As originally filed	$	(1,154,456	)	$	(1,044,589	)
Immaterial correction	—			(18,599		)
As restated with immaterial correction	(1,154,456		)	(1,063,188		)
Restatement	(7,757		)	(8,790		)
As restated	$	(1,162,213	)	$	(1,071,978	)
Total assets
As originally filed	$	2,027,622		$	2,074,557
Immaterial correction	—			(18,599		)
As restated with immaterial correction	2,027,622			2,055,958
Restatement	(7,757		)	(8,790		)
As restated	$	2,019,865		$	2,047,168
Deferred Tax Liability
As originally filed	$	156,740		$	135,446
Immaterial correction	—			(1,679		)
As restated with immaterial correction	156,740			133,767
Restatement	(2,948		)	(3,340		)
As restated	$	153,792		$	130,427
Limited Partners' Equity
As originally filed	$	182,469		$	182,438
Immaterial correction	—			(16,920		)
As restated with immaterial correction	182,469			165,518
Restatement	(4,809		)	(5,450		)
As restated	$	177,660		$	160,068



Statements of Operations and Comprehensive Income
For the years ended December 31,	2012			2011			2010
(In thousands, except per unit amounts)

Depreciation and amortization
As originally filed	$	127,339		$	123,805		$	126,796
Immaterial correction	—			2,032			2,060
As restated with immaterial correction	127,339			125,837			128,856
Restatement	(1,033		)	—			—
As restated	$	126,306		$	125,837		$	128,856
Loss on impairment / retirement of fixed assets, net
As originally filed	$	30,336		$	2,565		$	62,752
Immaterial correction	—			—			—
As restated with immaterial correction	30,336			2,565			62,752
Restatement	—			8,790			—
As restated	$	30,336		$	11,355		$	62,752
Income (loss) before tax
As originally filed	$	132,581		$	83,995		$	(28,322	)
Immaterial correction	—			(2,032		)	(2,060		)
As restated with immaterial correction	132,581			81,963			(30,382		)
Restatement	1,033			(8,790		)	—
As restated	$	133,614		$	73,173		$	(30,382	)
Provision (benefit) for taxes
As originally filed	$	31,365		$	11,837		$	3,245
Immaterial correction	—			(620		)	(575		)
As restated with immaterial correction	31,365			11,217			2,670
Restatement	392			(3,340		)	—
As restated	$	31,757		$	7,877		$	2,670
Net income (loss)
As originally filed	$	101,216		$	72,158		$	(31,567	)
Immaterial correction	—			(1,412		)	(1,485		)
As restated with immaterial correction	101,216			70,746			(33,052		)
Restatement	641			(5,450		)	—
As restated	$	101,857		$	65,296		$	(33,052	)
Basic earnings per limited partner unit:
As originally filed	$	1.82		$	1.30		$	(0.57	)
Immaterial correction	—			(0.02		)	(0.03		)
As restated with immaterial correction	1.82			1.28			(0.60		)
Restatement	0.01			(0.10		)	—
As restated	$	1.83		$	1.18		$	(0.60	)
Diluted earnings per limited partner unit:
As originally filed	$	1.81		$	1.29		$	(0.57	)
Immaterial correction	—			(0.02		)	(0.03		)
As restated with immaterial correction	1.81			1.27			(0.60		)
Restatement	0.01			(0.10		)	—
As restated	$	1.82		$	1.17		$	(0.60	)