DALLAS, Nov. 24, 2015 /PRNewswire/ -- Swank Capital, LLC and Cushing® Asset Management, LP announce a potential interim change to The Cushing® MLP High Income Index (the "Index"). Index constituent MarkWest Energy Partners, L.P. (NYSE: MWE) previously entered into an Agreement and Plan of Merger with MPLX LP (NYSE: MPLX) wherein MWE would be acquired by MPLX, subject to the approval of MWE unitholders. A special meeting of the unitholders of MWE is scheduled for December 1, 2015, at 9:00 AM Mountain Standard Time for the purpose of considering and voting on the proposed acquisition.

If the acquisition is approved, MWE will be removed from the Index and replaced with Targa Resources Corp. (NYSE: TRGP) after the markets close on December 1, 2015. The change will be effective on December 2, 2015.

The remaining constituents of the Index will be unaffected.

If the acquisition is not approved, there will be no change to the constituents of the Index.

ABOUT THE CUSHING® MLP HIGH INCOME INDEX

The Cushing® MLP High Income Index provides a benchmark that is designed to track the performance of 30 publicly traded energy and shipping master limited partnership (MLP) securities with an emphasis on current yield. The securities are chosen for inclusion according to a three-tier proprietary weighting system developed by Cushing® Asset Management, LP. The Cushing® MLP High Income Index is calculated by S&P Dow Jones Indices and reported on a real-time basis under the Bloomberg ticker "MLPY".

ABOUT SWANK CAPITAL AND CUSHING® ASSET MANAGEMENT

Cushing® Asset Management, LP ("Cushing"), a subsidiary of Swank Capital, LLC, is an SEC-registered investment adviser headquartered in Dallas, Texas. Cushing serves as investment adviser to affiliated funds and managed accounts which invest primarily in securities of MLPs and other natural resource companies.

Cushing is also dedicated to serving the needs of MLP and energy income investors by sponsoring a variety of industry benchmarks, including The Cushing® 30 MLP Index (Bloomberg Ticker: MLPX), The Cushing® MLP Market Cap Index (Bloomberg Ticker: CMCI) and The Cushing(®) Upstream Energy Income Index (Bloomberg Ticker: CRTY). For more information, please visit www.swankcapital.com/the-cushing-indices.

The Cushing® MLP High Income Index (the "Index") is the exclusive property of Cushing® Asset Management, LP, which has contracted with S&P Opco, LLC (a subsidiary of S&P Dow Jones Indices LLC) ("S&P Dow Jones Indices") to maintain and calculate the Index. S&P® is a registered trademark of Standard & Poor's Financial Services LLC ("SPFS"); Dow Jones® is a registered trademark of Dow Jones Trademark Holdings LLC ("Dow Jones"); and these trademarks have been licensed to S&P Dow Jones Indices. "Calculated by S&P Dow Jones Indices" and its related stylized mark(s) have been licensed for use by Cushing® Asset Management, LP. Neither S&P Dow Jones Indices, SPFS, Dow Jones S&P nor any of their affiliates sponsor and promote the Index and none shall be liable for any errors or omissions in calculating the Index.

CUSH-MLPY

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SOURCE Swank Capital, LLC