12/01/2015 TMLP TNAP TYLD Indices

Tortoise Index Solutions Announces Constituent Change to Indices Due to Merger and Acquisition Activity

LEAWOOD, Kan.-- December 01, 2015 (BUSINESS WIRE)--Tortoise Index Solutions today announced that MarkWest Energy Partners (NYSE: MWE) will be removed from the Tortoise MLP Index® (TMLP), Tortoise North American Pipeline IndexSM (TNAP) and Tortoise Real Yield IndexSM (TYLD) with today‘s MWE unitholders meeting resulting in approval for the merger with MPLX LP (NYSE: MPLX). MWE will cease trading on NYSE and rebalancing of TMLP, TNAP and TYLD constituents will occur, following the close of the transaction, consistent with the indices‘ methodologies.

About Tortoise Index Solutions

Tortoise Index Solutions, LLC provides research-driven indices that can be used as a realistic basis for exchange-traded products and thought leadership in the universe of essential assets. Its indices are intended to fill a void in the market and provide benchmarks and investible asset class universes for use by investment professionals, research analysts and industry executives to analyze relative performance, as well as to provide a basis for passively managed exchange-traded products. Tortoise Index Solutions, LLC is affiliated with Tortoise Capital Advisors, L.L.C., a registered investment manager specializing in actively managed listed energy investing. As of Oct. 31, 2015, Tortoise Capital Advisors had approximately $14.6 billion of assets under management in NYSE-listed closed- end funds, mutual funds, private funds and separate accounts. For more information about Tortoise Index Solutions, LLC visit www.tortoiseindexsolutions.com. For more information about Tortoise Capital Advisors, L.L.C., visit www.tortoiseadvisors.com.

About Tortoise MLP Index®

The Tortoise MLP Index® is a float-adjusted, capitalization weighted index of energy master limited partnerships (MLPs). The index is comprised of publicly traded companies organized in the form of limited partnerships or limited liability companies engaged in transportation, production, processing and/or storage of energy commodities.

About Tortoise North American Pipeline IndexSM

The Tortoise North American Pipeline Index is a float-adjusted, capitalization weighted index of pipeline companies that are organized and have their principal place of business in the United States or Canada. A pipeline company is defined as a company that either 1) has been assigned a standard industrial classification (“SIC”) system code that indicates the company operates in the energy pipeline industry or 2) has at least 50% of its assets, cash flow or revenue associated with the operation or ownership of energy pipelines.

About Tortoise Real Yield IndexSM

The Tortoise Real Yield Index is a new differentiated index that aims to track real asset exposure anchored in current income. It provides an efficient benchmark for real yielding, tax pass-through, liquid companies that distribute substantial cash flow streams to investors by investing in REITs (real estate investment trusts), MLPs (master limited partnerships) and BDCs (business development companies). The index provides a benchmark of companies with tangible essential assets that are supportive of economic activity with no commodity futures, precious metals, TIPs (Treasury Inflation-Protected Securities) or foreign currency exposure.

Safe Harbor Statement

This press release shall not constitute an offer to sell or a solicitation to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer or solicitation or sale would be unlawful prior to registration or qualification under the laws of such state or jurisdiction.

The indices are the exclusive property of Tortoise Index Solutions, LLC, which has 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 Tortoise MLP Index®, Tortoise North American Pipeline IndexSM and Tortoise North American Oil and Gas Producers IndexSM (each an “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 Tortoise Index Solutions, LLC and its affiliates. 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. The Tortoise Real Yield IndexSM is calculated by NYSE or its affiliates (“NYSE”). NYSE MAKES NO EXPRESS OR IMPLIED WARRANTIES, AND HEREBY EXPRESSLY DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE TORTOISE REAL YIELD INDEXSM OR ANY DATA INCLUDED THEREIN. IN NO EVENT SHALL NYSE HAVE ANY LIABILITY FOR ANY SPECIAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES. No portion of this publication may be reproduced in any format or by any means including electronically or mechanically, by photocopying, or by any other form or manner whatsoever, without the prior written consent of Tortoise Index Solutions, LLC.



Tortoise Index Solutions, LLC
Pam Kearney, 844-872-1562
Investor and Media Relations