DALLAS, May 18, 2018 /PRNewswire/ -- Swank Capital, LLC and Cushing^® Asset Management, LP announce an upcoming interim change to the constituents of The Cushing^® 30 MLP Index (the "Index"). On February 23, 2018, Index constituents Alliance Holdings GP, L.P. AHGP and Alliance Resource Partners, L.P. ARLP announced a series of simplification transactions (the "Simplification Transactions") whereby ARLP would acquire AHGP, subject to the written consent of the holders of a majority of AHGP's common units. AHGP sent notice to unitholders soliciting their written consent on April 27, 2018, and established a date 20 business days after that date, or May 25, 2018, as the earliest end of the consent period.

In the notice to unitholders sent April 27, 2018, AHGP stated that certain AHGP unitholders, which collectively own a majority of the outstanding AHGP common units, have agreed to deliver a written consent approving the Simplification Transactions pursuant to a support agreement. As AHGP has received sufficient consent to approve the transactions, per the Index's Methodology Guide, the earliest end of the consent period, or May 25, 2018, will be deemed the date for replacing AHGP in the Index. Consequently, after the market closes on May 25, 2018, and effective on May 29, 2018, Williams Partners, L.P. WPZ will replace AHGP as a constituent of the Index at AHGP's then-current weight.

There will be no changes to the remaining constituents of the Index.

ABOUT THE CUSHING^® 30 MLP INDEX

The Cushing^® 30 MLP Index tracks the performance of 30 publicly traded MLP securities that hold midstream energy infrastructure assets in North America, chosen according to a formula-based proprietary valuation model developed by Cushing^® Asset Management, LP to rank MLPs for potential inclusion in the Index. The Index price level is calculated by S&P Dow Jones Indices and reported on a real-time basis under the Bloomberg ticker "MLPX".

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^® MLP Market Cap Index CMCI, The Cushing^® MLP High Income Index MLPY, The Cushing^® Energy Index CENI, The Cushing^® Energy Supply Chain Index CSCI, The Cushing^® Transportation Index CTRI and The Cushing^® Utility Index CUTI. For more information, please visit http://www.cushingasset.com/indices.

Contact:

Judson Redmond

214-692-6334

www.cushingasset.com

The Cushing® 30 MLP Index (the "Index") is the exclusive property of Swank Capital, LLC, and Cushing Asset Management, LP, which have contracted with S&P Opco, LLC (a subsidiary of S&P Dow Jones Indices LLC) ("S&P Dow Jones Indices") to calculate and maintain 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 Swank Capital, LLC, and Cushing Asset Management, LP. Neither S&P Dow Jones Indices, SPFS, Dow Jones 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-MLPX

View original content:http://www.prnewswire.com/news-releases/swank-capital-and-cushing-asset-management-announce-a-constituent-change-to-the-cushing-30-mlp-index-300650764.html

SOURCE Cushing® Asset Management, LP; Swank Capital, LLC