Segment Disclosures

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Segment Disclosures

Segment Disclosures

Our reportable segments are strategic business units that offer different products and services. Our segments are managed separately because each segment requires different marketing strategies and business knowledge. Management evaluates performance based on segment operating margin, which includes revenue from affiliates and external customers, operating expenses, cost of product sales and earnings of non-controlled entities. Transactions between our business segments are conducted and recorded on the same basis as transactions with third-party entities.

We believe that investors benefit from having access to the same financial measures used by management. Operating margin, which is presented in the following tables, is an important measure used by management to evaluate the economic performance of our core operations. Operating margin is not a generally accepted accounting principles ("GAAP") measure, but the components of operating margin are computed using amounts that are determined in accordance with GAAP. A reconciliation of operating margin to operating profit, which is its nearest comparable GAAP financial measure, is included in the tables below. Operating profit includes depreciation and amortization expense and general and administrative ("G&A") expenses that management does not consider when evaluating the core profitability of our separate operating segments.

	Three Months Ended March 31, 2013
	(in thousands)
	Refined Products		Crude Oil			Marine Storage			Intersegment Eliminations			Total
Transportation and terminals revenue	$	165,359	$	23,228		$	38,684		$	—		$	227,271
Product sales revenue	199,415		—			2,296			—			201,711
Affiliate management fee revenue	—		3,159			280			—			3,439
Total revenue	364,774		26,387			41,260			—			432,421
Operating expenses	46,281		5,107			14,553			(760		)	65,181
Cost of product sales	158,298		—			2,100			—			160,398
Earnings of non-controlled entities	—		(1,375		)	(676		)	—			(2,051		)
Operating margin	160,195		22,655			25,283			760			208,893
Depreciation and amortization expense	21,353		7,469			6,750			760			36,332
G&A expenses	21,202		4,127			4,727			—			30,056
Operating profit	$	117,640	$	11,059		$	13,806		$	—		$	142,505

	Three Months Ended March 31, 2014
	(in thousands)
	Refined Products		Crude Oil		Marine Storage			Intersegment Eliminations			Total
Transportation and terminals revenue	$	210,236	$	67,903	$	39,498		$	—		$	317,637
Product sales revenue	293,710		—		2,353			—			296,063
Affiliate management fee revenue	—		4,595		311			—			4,906
Total revenue	503,946		72,498		42,162			—			618,606
Operating expenses	51,157		9,058		14,086			(804		)	73,497
Cost of product sales	197,756		—		284			—			198,040
Losses (earnings) of non-controlled entities	—		180		(646		)	—			(466		)
Operating margin	255,033		63,260		28,438			804			347,535
Depreciation and amortization expense	23,172		6,463		7,072			804			37,511
G&A expenses	23,019		5,994		5,922			—			34,935
Operating profit	$	208,842	$	50,803	$	15,444		$	—		$	275,089