Income investors looking at the 4.38% on a 10-year Treasury and wishing it were closer to seven have a quiet alternative: midstream energy. Pipelines move oil, gas, and refined products under long-term contracts that often carry inflation escalators, and the partnerships that own them have historically paid yields north of what investment-grade bonds offer. The catch has always been the K-1 tax form that comes with direct partnership ownership.
Three exchange-traded funds, Alerian MLP ETF (NYSEARCA:AMLP), Global X MLP & Energy Infrastructure ETF (NYSEARCA:MLPX), and Alerian Energy Infrastructure ETF (NYSEARCA:ENFR), wrap pipeline exposure in structures that issue a 1099 instead, sparing holders the special tax prep that direct MLP units demand.
Each fund takes a different route to arrive at the same destination. The first runs a concentrated, high-yield strategy that pays a C-corporation tax bill directly at the fund level. The second caps its exposure to partnerships to stay within regulated investment company rules, filling the rest of the basket with midstream C-corporations instead. The third sits right in the middle, utilizing a blended portfolio that leans heavily toward those corporate-structured names.
Why Pipeline Income Looks Compelling Now
The U.S. Energy Information Administration projects that natural gas consumption in the electric power sector will rise from 35.2 Bcf/d in 2025 to between 38.1 and 50.4 Bcf/d by 2050, with data center server load and LNG exports doing much of the lifting. Pipelines collect fees on the volumes moving through them, and most midstream contracts are volume-based with inflation-linked rate escalators. WTI crude at about $79 a barrel, down from a 12-month high near $115 in early April, matters less to a pipeline operator than gathered volumes and contracted capacity, which is part of why these funds have held up while crude has slipped.
AMLP: The Pure-Play High Yielder
This fund is the largest in the category and the one that truly delivers on the headline yield. The trailing distribution is 7.2%, with a price near $52, supported by quarterly payouts that have risen from $0.71 in early 2022 to $1.03 as of May 2026. Total assets under management currently hover near $11.8 billion, which effectively dwarfs every other peer in the space.
The portfolio is concentrated, with the top six holdings accounting for about 73% of assets. MPLX at 12.8%, Sunoco at 12.3%, Western Midstream at 12.2%, and Enterprise Products at 12.2% sit at the top, with Energy Transfer and Plains All American close behind. That is pure-play partnership exposure, with no general partner stocks diluting the yield.
The structural cost shows up in two places. The stated expense ratio is 0.84%, but because AMLP is organized as a C-corporation, it accrues federal and state income taxes at the fund level on partnership distributions, creating a drag that historically widens the gap between AMLP’s price return and its underlying index. The trade-off is the highest distribution in the group. Over the past year, the fund returned about 15% on a total-return basis, with a beta of 0.48 relative to the broader market, indicating price swings have been muted compared with the S&P 500.
The shorthand: AMLP is the income vehicle for investors who want the biggest check and accept that tax friction inside the fund eats some of the long-run upside.
MLPX: The Tax-Efficient Hybrid
This alternative solves the C-corp tax drag by structuring itself as a regulated investment company. To qualify, the fund keeps direct MLP exposure under 25% and fills the remainder with midstream corporations, meaning there is no fund-level tax on the bulk of its portfolio. Top holdings are led by Williams Companies at 9.4%, TC Energy at 8.9%, Enbridge at 8.3%, Kinder Morgan at 8.2%, and Cheniere Energy at 6.4%, with Canadian operators accounting for roughly a quarter of the total book.
Assets run about $3.5 billion across 31 positions at an expense ratio of 0.45%. The distribution yield is lower than AMLP at roughly 4.1%, but the absence of fund-level taxes has historically translated into stronger total returns. Year to date, MLPX is up 25%, and the one-year total return runs 24%, both ahead of AMLP.
The trade-off is the yield gap. Investors who need current income will find MLPX comes up short of the roughly 7% yield that AMLP delivers. The structural offset is that MLPX has historically compounded capital at a faster rate, so the fund tends to win on a multi-year horizon while losing on current income.
ENFR: The Diversified Middle Ground
This final option is the least obvious pick of the three and earns a spot on this list for a specific reason. It holds 29 positions across the U.S. and Canadian midstream, including corporate-converted former MLPs such as ONEOK, Kinder Morgan, and Targa Resources that other funds simply cannot own. That conversion wave, which pulled several giants out of the partnership format over the past decade, significantly narrowed the investable universe of pure MLPs. This fund captures those businesses that are left without forcing investors to give up the underlying income profile.
The fund carries the lowest expense ratio of the three at 0.35%, distributes around 4.0%, and has returned roughly 25% over the past year. Beta sits at 0.58, slightly higher than AMLP but still below the broad market. The catch is scale. Net assets are about $472 million, a fraction of AMLP and MLPX, which can mean wider bid-ask spreads for larger trades.
This fund functions as the broad midstream index of the trio, utilizing the same regulated investment company tax treatment as its peer but offering a distinctly different sleeve of holdings.
Picking Between the Three
The decision sorts cleanly by what the investor needs most. For a retiree who prioritizes current income and is willing to accept tracking drag in exchange for a yield approaching double that of the 10-year Treasury, AMLP fits the bill. For an investor with a longer horizon focused on total return rather than distribution size, MLPX has historically compounded at a faster rate under the RIC structure. For exposure to the broadest midstream universe, including the corporate names that no longer fit in a pure MLP index, ENFR covers more ground.
None of the three issues is a K-1, which removes the $200 to $500 annual accounting expense that direct partnership ownership often carries. A pairing of AMLP for yield and MLPX for total return covers most income mandates, while a three-way split spreads structural risk across the C-corp, RIC, and diversified midstream approaches.
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