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Natural gas processors can be sensitive to commodity prices in the form of frac spreads
Some market participants view fractionation spreads (also called “frac spreads”) as one indication of some natural gas processing companies’ profitability. Frac spreads depend on natural gas liquids (or NGLs) and natural gas prices, and they increase when NGL prices increase relative to natural gas prices (for a detailed explanation of fractionation spreads, please refer to “Why fractionation spreads affect some MLP stocks” and “An in-depth look at the mechanics of fractionation spreads”). Generally, companies with natural gas processing operations such as MarkWest Energy (MWE), Targa Resources (NGLS), Williams Partners (WPZ), and DCP Midstream Partners (DPM) realize more profits when frac spreads increase.
Frac spreads were down last week, but they’re still up over 40% since late June
Last week, natural gas prices were up slightly, while NGL prices traded mixed—though ethane declined and natural gasoline declined. Ultimately, this resulted in lower frac spreads (as measured by a custom index created by Bloomberg, using assumptions provided by Ceritas Group).
Note: The custom frac spread is based on assumptions provided by Ceritas Group. To see how the custom frac spread is calculated, please refer An in-depth look at the mechanics of fractionation spreads.
Frac spreads had generally decreased since mid-February, when they reached ~$30 per barrel. Since then, frac spreads declined to levels as low as ~$20 per barrel, mostly due to the strong rally in natural gas prices. Frac spreads have recovered strongly since then, as oil has seen significant gains while natural gas prices have stagnated. Also, the natural gas liquids complex had been helped over the past few months by increases in propane prices, likely from increases in export capacity (see Why some MLPs are benefitting from increased propane exports for more background). Meanwhile, natural gas prices remained relatively low, which had caused a medium-term increase in frac spreads.
Background: Depressed ethane and propane prices have caused frac spreads to trade down over the longer term
For a period, frac spreads had increased to between $40 and $50 per barrel (compared to current levels of around $25 to $30 per barrel) due to depressed natural gas prices, while NGL prices had remained relatively robust. Over the last year, frac spreads had declined largely due to the sharp drop in prices in ethane and propane (see the chart below), while natural gas prices have recovered somewhat. However, as we’ve seen, over July and August, frac spreads had recovered somewhat since a sharp spike in oil prices and increased propane export capacity helped to improve NGL prices.
The decline in ethane and propane prices has been a consequence of the “shale revolution” boom, as natural gas shales rich in NGLs have experienced rapid development, resulting in the market flooding with new NGL supply. While the excess supply of ethane and propane had been absorbed at first by the chemicals industry, much of the capacity for chemical companies to process ethane and propane has been soaked up.
More infrastructure for processing ethane and propane would support prices
Once more capacity for processing ethane and propane comes online or more NGL export capacity is constructed, this could provide additional long-term demand for these commodities and result in higher frac spreads, as the recent increases in propane exports have shown.
Several midstream companies have noted that they’re working on such projects, but the timeline for the completion of these works is over the next several years. However, even if demand for these NGLs grows as a result of completed infrastructure, the supply of NGLs also continues to grow. If supply meets or outstrips demand, the prices of ethane and propane may remain depressed.
Last week, frac spreads traded down slightly, though over the medium term, frac spreads are up significantly. This is a positive catalyst for natural gas processors such as MWE, NGLS, WPZ, and DPM, many of which are also components of the Alerian MLP ETF (AMLP).
© 2013 Market Realist, Inc.