2.4.0.82114100 - Disclosure - Acquisition Acquisition (Notes)truefalsefalse1falsefalsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001489136duration2013-01-01T00:00:002013-06-30T00:00:001true1semg_AcquisitionAbstractsemg_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse02false2us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:36px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">14.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ACQUISITIONS</font></div></td></tr></table><div style="line-height:120%;padding-left:36px;text-indent:-36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-left:36px;text-indent:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;"></font><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Mid-America Midstream Gas Services, L.L.C.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On April 30, 2013, we executed a definitive agreement to acquire the equity interest of Mid-America Midstream Gas Services, L.L.C., a wholly owned subsidiary of Chesapeake Energy Corporation (NYSE: CHK)("Chesapeake"), which is the owner of gas gathering and processing assets in the Mississippi Lime play for approximately </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">$300 million</font><font style="font-family:inherit;font-size:10pt;"> in cash. On August 1, 2013, we completed the acquisition. The transaction was funded through the combination of a portion of the net proceeds from the sale of the Notes and a borrowing under the revolving credit facility under SemGroup's corporate credit agreement. Highlights of the acquisition include the following:</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">200</font><font style="font-family:inherit;font-size:10pt;"> miles of gathering pipeline;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Rose Valley I plant - A </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">200</font><font style="font-family:inherit;font-size:10pt;"> mmcf/d (million cubic feet per day) cryogenic processing plant, expected to be in operation in the first quarter of 2014;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Rose Valley II plant - A </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">200</font><font style="font-family:inherit;font-size:10pt;"> mmcf/d cryogenic processing plant, expected to be in operation in the first quarter of 2016;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Approximately </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">540,000</font><font style="font-family:inherit;font-size:10pt;"> net acre dedication in the core of the Mississippi Lime play, supported by a recently announced joint venture between Chesapeake and Sinopec International Petroleum Exploration and Production Corporation ("Sinopec"); and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">A </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">20</font><font style="font-family:inherit;font-size:10pt;">-year, </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">100%</font><font style="font-family:inherit;font-size:10pt;"> fee based, gas gathering and processing agreement with certain affiliates of Chesapeake and Sinopec. </font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Rose Valley plants I and II will require approximately </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">$125 million</font><font style="font-family:inherit;font-size:10pt;"> of additional capital expenditures for completion as well as additional capital related to future well connections. </font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Barcas Field Services, LLC</font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On August 1, 2013, our consolidated subsidiary, Rose Rock, executed a definitive agreement to acquire the assets of Barcas Field Services, LLC, which owns and operates a crude oil trucking fleet for </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;text-decoration:none;">$47 million</font><font style="font-family:inherit;font-size:10pt;">. The transaction is expected to close during the third quarter of 2013. Highlights of the acquisition include the following:</font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">114</font><font style="font-family:inherit;font-size:10pt;"> trucks, </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">120</font><font style="font-family:inherit;font-size:10pt;"> trailers and miscellaneous equipment; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:72px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:48px;"><font style="font-family:inherit;font-size:10pt;">•</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a long-term take-or-pay customer transportation agreement.</font></div></td></tr></table><div style="line-height:120%;padding-left:84px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">NGL Energy</font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-left:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On August 6, 2013, we completed the acquisition of approximately </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">5.36%</font><font style="font-family:inherit;font-size:10pt;"> of the general partner of NGL Energy, which increases our ownership of NGL Energy's general partner to </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">11.78%</font><font style="font-family:inherit;font-size:10pt;">.</font></div></div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for business combinations, including leverage buyout transactions (as applicable), and divestitures. This may include a description of a business combination or divestiture (or series of individually immaterial business combinations or divestitures) completed during the period, including background, timing, and assets and liabilities recognized and reclassified or sold. This element does not include fixed asset sales and plant closings.No definition available.false0falseAcquisition Acquisition (Notes)UnKnownUnKnownUnKnownUnKnowntruefalsefalseNoteshttp://www.semgroupcorp.com/role/AcquisitionAcquisitionNotes12