America's energy bonanza just keeps getting bigger. In the first quarter of 2014, the United States set a new record for oil production at 11 million barrels per day, and became the world's No. 1 oil producer. Research firm IHS estimates that $890 billion will be invested into U.S. energy production and infrastructure in just the next 12 years. 

Investors may be eager to learn how they can profit from this ocean of cash. Master limited partnerships, or MLPs, are an ideal way for long-term income investors to partake in the bounty because of their high, safe, and growing distributions. However, MLPs, which pay out almost all their earnings as distributions, must often either issue debt or sell additional equity to expand both their assets and their distributions. Acquisitions fueled by equity sales must be accretive, meaning the growth in distributable cash flow, or DCF, is greater than unit dilution. This article highlights three MLPs that have proven to be masters of this kind of growth.

Growing their way to prosperity

MLP Yield 10-Year Projected Annual Distribution Growth Rate 10-Year Projected Annual Total Return
Mid-Con Energy Partners 9.20% 3.74% 12.94%
S&P 500 1.89%   9.20%

Sources: S&P Capital IQ, Yahoo Finance,

Mid-Con Energy Partners (NASDAQ: MCEP) is a tiny MLP focused purely on low-decline Oklahoma oil assets. It specializes in enhanced oil recovery, or EOR, specifically waterflooding. 

Mid Con Energy Water Flooding Image
Source: May 22, 2014,Mid-Con Energy investor presentation.

This pure oil and local focus has proven wildly successful for Mid-Con Energy Partners. Since its 2011 IPO, Mid-Con has made eight purchases and grown its reserves by 12.25% annually. It has also maintained the lowest cost of production and the second-highest margins in its industry. 

For example, it costs Mid-Con Energy just $25.13 per barrel to produce oil, compared to $35-$45 per barrel for CO2-based EOR producers and $50-$65 per barrel for typical shale oil producers. Mid-Con is able to extract an amazing $64.63 per barrel in EBITDA (earnings before interest, tax, depreciation, and amortization) margin and sports a net margin of 31.2%. To put that in perspective, the average oil and gas MLP has a net margin of just 9.2%.

On July 24, Mid-Con Energy Partners announced the $56.5 million purchase of northwestern Oklahoma assets with an estimated 2.6 million barrels of oil equivalent. The terms of the deal call for the company to issue 2.2 million units and pay $4.5 million in cash. This will dilute existing Mid-Con Energy holders by 10.4% but increase the MLP's reserves by 16.8%, thus proving its accretive nature.

Better yet, the new assets have an estimated 17.5 years' worth of production at a low 16% decline rate, which is far better than many shale oil wells, which can have depletion rates upwards of 70%. With production costs estimated at just $15 per barrel, Mid-Con Energy Partners anticipates this deal will pay for itself in about three and a half years and be immediately accretive to DCF. Thus, it should help Mid-Con achieve its long-term distribution growth guidance of 4% annually. 

Biggest MLP deal of the year?
On June 16, Williams Companies (NYSE: WMB), general partner of Williams Partners (NYSE: WPZ), announced it was acquiring Global Infrastructure Partners' 50% general partner stake and 27% equity stake in Access Midstream Partners (NYSE: ACMP) for $6 billion. 

The deal would leave Williams with 100% of Access Midstream Partners' general partnership and 50% of its limited units. The $6 billion is to be paid half in equity, with the other half a mixture of long-term debt and cash. The move is so accretive to Williams that the company announced it would raise its dividend by 32% once the deal is closed. 

Williams Companies, which owns 63% of Williams Partners limited units, as well as its general partner stake and incentive distribution rights, announced it would speed up the pace of dropping down its assets to Williams Partners. This would leave Williams Companies a pure general partner, deriving all its income from fees generated by its MLPs. 

The combination of accelerated dropdowns from Williams Companies and organic investment growth should provide for faster and sustained distribution growth from Williams Partners. This in turn will drive faster and larger fees to Williams Companies, which can then accelerate its dividend growth.

MLP Yield Projected 10-Year Annual Earnings Growth Rate Projected 10-Year Annual Dividend/Distribution Growth Rate Projected 10 Year Annual Total Return
Williams Cos. 2.90% 17.90% 19.76% 22.66%
Williams Partners 6.90% 4% 4.16% 11.06%
Access Midstream Partners 3.80% 16.20% 17.15% 20.95%
S&P 500 1.89%     9.2%

Sources: S&P Capital IQ, Yahoo Finance,

Meanwhile, Access Midstream Partners is set to grow like a weed thanks to $4.6 billion in growth projects through 2016. 

What's more, Access Midstream is ideally suited to grow over the long term thanks to its access to nearly every major U.S. oil and gas shale formation and its 100% fixed rate, long-term contracts.

 Access Midstream Buisness Model
Source: July 2014 Access Midstream Partners Investor Presentation, page 7.

Foolish takeaway
Sustainable distribution growth in the MLP space can only be accomplished through organic investment or acquisitions. Mid-Con Energy Partners, Williams Partners, Williams Companies, and Access Midstream Partners represent four high-quality, high yielding ways for long-term income investors to generate market beating total returns and growing income over the next decade and beyond.

Adam Galas has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.