Alerian US Midstream Energy Index

The Alerian US Midstream Energy Index is a broad-based composite of US energy infrastructure companies. The capped, float-adjusted, capitalization-weighted index, whose constituents earn the majority of their cash flow from midstream activities involving energy commodities, is disseminated real-time on a price-return basis (AMUS) and on a total-return basis (AMUSX).


Index Characteristics

Index Symbol (Price Return)AMUS
Index Symbol (Total Return)AMUSX
Number of Constituents62
Market Capitalization$498 billion
Adjusted Market Capitalization$324 billion
RebalancingsQuarterly

Index Yield

Top 10 Constituents

ConstituentSectorTickerPriceYieldMarket Cap (M)Index Weight
Enterprise Products Partners LPPipeline Transportation | Natural GasEPD$29.365.8%$63,78910.3%
Kinder Morgan IncPipeline Transportation | Natural GasKMI$18.124.4%$39,97410.3%
The Williams Companies IncGathering + Processing | Natural GasWMB$28.094.8%$34,0009.1%
ONEOK IncGathering + Processing | Natural GasOKE$69.144.6%$28,4229.0%
Energy Transfer Partners LPPipeline Transportation | Natural GasETP$22.3010.1%$25,9828.3%
Cheniere Energy IncOther | LiquefactionLNG$66.730.0%$16,5585.3%
Magellan Midstream Partners LPPipeline Transportation | PetroleumMMP$68.865.5%$15,7145.1%
Energy Transfer Equity LPPipeline Transportation | Natural GasETE$17.407.0%$20,1535.0%
Targa Resources CorpGathering + Processing | Natural GasTRGP$55.856.5%$12,0343.9%
Plains All American Pipeline LPPipeline Transportation | PetroleumPAA$25.034.8%$19,9413.5%

Sector Weightings

The accuracy and/or completeness of any Alerian index, any data included therein, or any data from which it is based is not guaranteed by Alerian, and it shall have no liability for any errors, omissions, or interruptions therein. Alerian makes no warranties, express or implied, as to results to be obtained from use of information provided by Alerian and used in this service, and Alerian expressly disclaims all warranties of suitability with respect thereto.

Last Updated: 09/14/18

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