Ethane Rejection

U.S. Gulf Coast ethane exports were up sharply in September thanks to the startup of new export terminals in Texas. The surge in export volumes contributed to an 8% increase in ethane prices between July and September and a similar jump in the ratio between ethane and natural gas. In today’s RBN blog, we look at how the recent additions to export capacity have impacted prices and review the basics of ethane economics. 

It looks like the U.S. ethane market may have just dodged a bullet. Since late May, the U.S. Bureau of Industry and Security effectively banned ethane exports to China, the destination for two-thirds of the ethane sent out of Gulf Coast docks — about 225 Mb/d in 2024. Ethane has become a bargaining chip in U.S.-China negotiations over rare earths and tariffs, in part because China has no alternative source of waterborne ethane feedstock for its petchems. But playing the ethane card presented a potential problem for the U.S. too. While China isn’t the only export market for U.S. ethane, there are very limited other destinations for the volumes they typically take. The need to find a home for those volumes could have required significantly more “rejection” of ethane into natural gas at U.S. gas processing plants — i.e., selling ethane for its fuel value instead of recovering it for petchems or export.  In today’s RBN blog, we examine the ethane export issue, which remains in flux as part of the broader U.S.-China trade agreement still being finalized. 

The demand for ethane by Alberta’s petrochemical industry has experienced a slow expansion in the past 20 or so years. However, that demand is likely to increase sharply by the end of the decade now that Dow Chemical has sanctioned a major expansion at its operations in Fort Saskatchewan, AB, that will more than double the site’s ethane requirements. As we discuss in today’s RBN blog, this will call for an “all-hands-on-deck” approach to increasing Alberta’s access to ethane supplies from numerous sources. 

In the last 12 months, U.S. natural gas prices have touched highs not seen since the start of the Shale Revolution as well as depths previously plumbed only briefly during downturns in 2012, 2016 and 2020. Where will prices go next? Well, if we knew that, we wouldn’t be writing blogs. As we’ve seen in the past couple of years, there’s just too much going on in global markets to think you can know where gas prices will be 10 years, five years or even one year from now. But that never stopped us from trying. As we’ve done many times before, we’ll take a scenario approach — a high case and a low case. In today’s RBN blog, we’ll explore these scenarios for domestic natural gas prices and what sort of ramifications each would entail for other markets. 

In the last 12 months, U.S. natural gas prices have touched highs not seen since the start of the Shale Revolution as well as depths previously plumbed only briefly during downturns in 2012, 2016 and 2020. Where will prices go next? Well, if we knew that, we wouldn’t be writing blogs. As we’ve seen in the past couple of years, there’s just too much going on in global markets to think you can know where gas prices will be 10 years, five years or even one year from now. But that never stopped us from trying. As we’ve done many times before, we’ll take a scenario approach — a high case and a low case. In today’s RBN blog, we’ll explore these scenarios for domestic natural gas prices and what sort of ramifications each would entail for other markets. 

That crazy little ethane molecule is at it again. Yesterday the price blasted to 67.875 c/gal, a level last seen on January 17, 2012. Petchem cracker margins are low. Production is up, but inventories are down. A big driver of the bedlam is the price of natural gas, trading in the $7-$9/MMBtu range for the past month. But as usual with ethane, there’s a lot more happening below the surface — including high domestic demand, growing export volumes, and significant developments in downstream petrochemical markets — all shaking things up. Looking ahead, uncertainty looms, with more export capacity, ever-changing ethane rejection economics, and uneven production growth. In today’s RBN blog, we’ll leap back into the ethane market to see what’s been going on, and where ethane is headed over the next few years.

It’s a well-known fact in the energy and petchem industries that ethane is either “rejected” into natural gas or used as a feedstock for steam crackers. But piping ethane to NGL hubs, crackers, or export docks only makes sense if it’s economically viable or if there’s no other alternative, and ethane rejection has its limits — ethane has a 70% higher Btu value than methane, and too much rejection can make pipeline gas “too hot” for downstream consumers. Well, there’s another way to make economic use of ethane: burn it — typically in a blend with natural gas — to generate electric power. Burning ethane for power is super-rare though, and only happens in places where the lightest of all NGLs is so abundant that folks don’t know what to do with it. The Marcellus/Utica region in Appalachia for one, and now — just maybe — the Bakken Shale in western North Dakota. Today, we discuss plans for what would be only the second major U.S. power plant to be fueled by a blend of natural gas and ethane.

The crude oil market garners all the headlines in the COVID/OPEC+ era, and understandably so. But the NGL market is also in turmoil and deserves attention too. Declining volumes of associated gas from crude-focused plays will soon be cutting into NGL supplies. Demand for natural gasoline has been hit hard, along with the crude, motor gasoline and jet fuel markets. But propane prices relative to crude oil have soared to historically high ratios, in part reflecting recent strong international demand for U.S. LPG exports. As for ethane — the lightest NGL, and the most important feedstock for the Gulf Coast petchem sector — it is going through wrenching changes, with major implications for both suppliers and steam crackers. Today, we begin a short series on the major dislocations that crude-market chaos is spurring in NGL production, ethane rejection, feedstock selection by steam crackers, and ethane/LPG exports.

Energy markets are changing faster than at any time in history. It’s hard enough just to keep up with what’s happening today, much less try to anticipate what’s ahead on the other side of COVID. But that’s exactly what we’ll be doing next week at RBN’s Virtual School of Energy. More than one-third of the curriculum is a detailed review of RBN’s hot-off-the-presses forecasts for all the essential elements of U.S. crude oil, natural gas and NGL markets, including our freshly updated outlooks for production, infrastructure utilization, exports/imports and demand. Better yet, we’ll put these forecasts in the context of our fundamental analysis and models, so you can not only understand where it looks like we’re headed today, but gain the skills to adjust your outlook on the fly as circumstances change. Although this blog is an advertorial, stick with us if you would like to know more about how the RBN crystal ball works.

Much as production growth in the Permian required the development of new pipeline capacity to take away crude oil, natural gas and NGLs, increasing activity in the Williston Basin has spurred the need for incremental capacity to move all three of the energy commodities out of western North Dakota and eastern Montana. For NGLs, the recent start-up of ONEOK’s Elk Creek Pipeline has been the answer to producers’ prayers — not just in the Williston Basin (home of the Bakken formation), but also in the Rockies’ Powder River and the Denver-Julesburg (D-J) basins, through which the new, 240-Mb/d pipeline passes on its way to Bushton, KS. Elk Creek’s timing couldn’t have been better: it came online just as a number of new gas processing plants entered commercial service in the Williston Basin, and just in advance of possible Btu restrictions on the all-important Northern Border gas pipeline that may force cutbacks in ethane rejection. Today, we explain why the Elk Creek NGL Pipeline helps resolve a number of challenges Bakken producers have been facing.