DALLAS, March 6, 2013 /PRNewswire/ -- Summit Midstream Partners, LP (NYSE: SMLP) today announced that its 2012 tax packages, including the Schedule K-1, are now available online and may be accessed at https://www.partnerdatalink.com/summit/. SMLP will begin mailing the 2012 tax packages to unitholders today, and expects to complete the process by March 11, 2013. Unitholders may also call Partner DataLink at (855) 375-4158 Monday through Friday from 8:00 a.m. – 5:00 p.m. CST or visit SMLP's website at www.summitmidstream.com under "Investors >> K-1 Tax Information" for additional information. (Logo: http://photos.prnewswire.com/prnh/20120927/MM82470LOGO) About Summit Midstream Partners, LPSMLP is a growth-oriented limited partnership focused on owning and operating midstream energy infrastructure assets that are strategically located in the core producing areas of unconventional resource basins, primarily shale formations, in North America. SMLP currently provides fee-based natural gas gathering and compression services in two unconventional resource basins: (i) the Piceance Basin, which includes the Mesaverde formation as well as the Mancos and Niobrara shale formations in western Colorado; and (ii) the Fort Worth Basin, which includes the Barnett Shale formation in north-central Texas. SMLP owns and operates approximately 386 miles of pipeline and 147,600 horsepower of compression. SMLP is headquartered in Dallas, TX with offices in Houston, TX, Denver, CO and Atlanta, GA. Summit Midstream Partners, LLC ("Summit Investments") owns a 69.1% limited partner interest in SMLP and owns and controls the general partner of SMLP, Summit Midstream GP, LLC, which has sole responsibility for conducting the business and managing the operations of SMLP. Summit Investments is a privately held company owned by members of management, funds controlled by Energy Capital Partners II, LP, and GE Energy Financial Services, Inc. and certain of its affiliates.