Business Segments

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Business Segments

Business Segments

The Partnership has four reportable segments: terminalling and storage, natural gas services, marine transportation, and sulfur services. The Partnership’s reportable segments are strategic business units that offer different products and services. The operating income of these segments is reviewed by the chief operating decision maker to assess performance and make business decisions.

The accounting policies of the operating segments are the same as those described in Note 2 of the Notes to Consolidated Financial Statements. The Partnership evaluates the performance of its reportable segments based on operating income. There is no allocation of administrative expenses or interest expense.

The natural gas services segment information below excludes the discontinued operations of the Prism Assets for all periods. See Note 5.

	Operating Revenues		Intersegment Eliminations			Operating Revenues After Eliminations		Depreciation and Amortization		Operating Income (Loss) after Eliminations			Capital Expenditures
Year Ended December 31, 2012:
Terminalling and storage	$	322,175	$	(4,652	)	$	317,523	$	22,976	$	25,403		$	72,877
Natural gas services	825,506		—			825,506		601		15,395			434
Sulfur services	261,584		—			261,584		7,371		41,909			11,477
Marine transportation	88,815		(3,067		)	85,748		11,115		3,174			8,852
Indirect selling, general, and administrative	—		—			—		—		(12,046		)	—
Total	$	1,498,080	$	(7,719	)	$	1,490,361	$	42,063	$	73,835		$	93,640
Year Ended December 31, 2011:
Terminalling and storage	$	283,175	$	(4,414	)	$	278,761	$	19,814	$	20,619		$	48,287
Natural gas services	611,749		—			611,749		578		7,487			620
Sulfur services	275,044		—			275,044		6,725		34,595			16,158
Marine transportation	83,971		(7,035		)	76,936		13,159		(6,485		)	12,137
Indirect selling, general, and administrative	—		—			—		—		(8,864		)	—
Total	$	1,253,939	$	(11,449	)	$	1,242,490	$	40,276	$	47,352		$	77,202
Year Ended December 31, 2010:
Terminalling and storage	$	199,744	$	(4,354	)	$	195,390	$	17,330	$	20,034		$	8,656
Natural gas services	442,005		—			442,005		571		7,744			257
Sulfur services	165,078		—			165,078		6,262		20,166			7,107
Marine transportation	82,635		(4,993		)	77,642		12,721		6,524			2,159
Indirect selling, general, and administrative	—		—			—		—		(6,386		)	—
Total	$	889,462	$	(9,347	)	$	880,115	$	36,884	$	48,082		$	18,179

Revenues from one customer in the natural gas services segment were $150,246, $137,177 and $92,265 for the years ended December 31, 2012, 2011 and 2010, respectively. Revenues from one customer in the sulfur services segment were $87,820, $111,172 and $50,357 for the years ended December 31, 2012, 2011 and 2010, respectively.

The Partnership's assets by reportable segment, which exclude assets held for sale of $212,787 as of December 31, 2011, are as follows:

	2012		2011
Total assets:
Terminalling and storage	$	376,330	$	282,106
Natural gas services	331,064		268,502
Sulfur services	155,639		162,289
Marine transportation	149,963		143,424
Total assets	$	1,012,996	$	856,321