Swank Capital Announces Changes to the Cushing® MLP High Income Index

DALLAS, March 4, 2011 /PRNewswire/ -- Swank Capital, LLC and Cushing® MLP Asset Management, LP announced today that Eagle Rock Energy Partners, LP (Nasdaq: EROC) will replace Penn Virginia GP Holdings, L.P. (NYSE: PVG) in the Cushing® MLP High Income Index (MLPY) after the close of trading on Wednesday, March 9, 2011, subject to the merger approval by a majority vote of the outstanding limited partnership units of Penn Virginia GP Holdings, L.P. at a meeting to be held on March 9, 2011.

Eagle Rock Energy Partners, LP gathers, compresses, treats, processes, transports and sells natural gas, and fractionates and transports natural gas liquids. The company also acquires, produces, and develops oil and natural gas properties.

The Cushing® MLP High Income Index tracks 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® MLP Asset Management, LP.  The Cushing® 30 MLP High Income Index is calculated by Standard & Poor's and reported on a real-time basis under the Bloomberg ticker "MLPY" and FactSet ticker "MLPH-CME".

Current MLPY Index Constituents: BWP, BBEP, BPL, CQP, CPNO, XTEX, DPM, EVEP, EEP, ENP, ETP, FGP, GEL, NRGY, KMP, LGCY, LINE, MWE, NRP, NMM, NKA, NS, PVG, PVR, PAA, RGNC, NGLS, TOO, VNR, WPZ

ABOUT CUSHING® MLP ASSET MANAGEMENT, LP.

Cushing® MLP Asset Management, LP ("Cushing"), 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 the sponsor of The Cushing® 30 MLP Index, a North American energy infrastructure index comprised of 30 equally weighted publicly traded MLPs.  The Cushing® 30 MLP Index is calculated by Standard & Poor's and reported under the Bloomberg ticker "MLPX" and FactSet Ticker "MLPX-CME". Cushing continues to expand its platform of MLP-related investment products, leveraging extensive industry contacts and unparalleled research depth to drive both passive and actively managed investment opportunities for individual and institutional investors.  Cushing seeks to identify and exploit investment niches it believes are generally less understood and less followed by the broader investor community.

The Cushing® MLP High Income Index (the "Index") is the exclusive property of Cushing MLP Asset Management, LP, which has contracted with S&P to maintain and calculate the Index.  Standard & Poor's® and S&P® are registered trademarks of Standard & Poor's Financial Services LLC. "Calculated by S&P Custom Indices" and its related stylized mark(s) are service marks of Standard & Poor's Financial Services LLC and have been licensed for use by Cushing® MLP Asset Management, LP.  S&P and its affiliates shall have no liability for any errors or omissions in calculating the Index.

SOURCE Cushing MLP Asset Management, LP