purity products

Enterprise Products Partners doesn’t just extract mixed NGLs from associated gas at processing plants, transport that Y-grade to the NGL hub at Mont Belvieu, and fractionate NGLs into “purity products” like ethane, propane and butanes. The midstream giant also distributes purity products to Gulf Coast steam crackers and refineries, converts propane to propylene at its two propane dehydrogenation (PDH) plants, distributes ethylene and propylene, transports propane and butane to wholesale markets across much of the eastern half of the U.S., and exports a wide range of products — ethane, LPG, ethylene and propylene among them — from two Enterprise marine terminals on the Houston Ship Channel. (Another export terminal in Beaumont, TX, is in the works.) Talk about a value chain! In today’s RBN blog, we continue our series on NGL networks with a look at Enterprise’s NGL and petrochemical production, distribution and export assets.

In just over a month, the price of Mont Belvieu purity ethane doubled, from 19 c/gal to 39 c/gal on Friday. Sure, the price of natural gas was up about 15% over the same period. But that increase was nowhere near ethane’s, so it was certainly not the price of gas that was making ethane take off. In fact, with ethane rocketing into space and gas prices still in the dumper, the ethane-to-gas ratio — a key measure of the value of ethane — skyrocketed, soaring from 1.2X in mid-June to 2.2X on Friday. A ratio at this level has only happened twice before in the past decade: once in 2018 due to a collision between fractionation capacity and new petchem plants coming online, and then again in 2020 during the COVID petchem demand surge. But the most recent price surge didn’t last long. On Tuesday ethane came back to earth, crashing 22% in a single day, and the ethane-to-gas ratio deflated down to 1.6X. So what’s happening? There are a lot of conspiracy theories out there that we won’t repeat here. Instead, in today’s RBN blog, we’ll lay out what we think are the most likely contributing factors behind this wild ride.

Less than a handful of U.S. midstream companies own and operate extensive NGL networks that do it all: extract mixed NGLs from associated gas at their processing plants, transport that “Y-grade” to their underground salt-cavern storage facilities in Mont Belvieu, fractionate mixed NGLs into so-called “purity products” at their fractionators, then pipe that ethane, LPG and other products either to domestic end-users or to company-owned export docks. Enterprise Products Partners is a member of that select group and, as we discuss in today’s RBN blog, its NGL network — which stretches from Appalachia to the Permian to the Rockies — is the most extensive.

Crude oil production in the Permian continues to grow, gas-to-oil ratios in the basin are on the rise, and a slew of new gas processing plants are coming online, extracting more and more NGLs that need to be transported, fractionated and shipped to end-users. Targa Resources, with its full slate of NGL-related assets — gathering systems, processing plants, NGL pipelines, fractionators and an LPG terminal — is a big winner in all this. In today’s RBN blog, we continue our series on the U.S.’s robust and growing NGL networks with a look at Targa’s array of assets in the Permian and other production areas.

Natural gas and NGL production growth in the Marcellus/Utica slowed and then leveled off in the early 2020s, largely due to gas-pipeline takeaway constraints. Still, the Northeast remains a key supplier of natural gas and NGL “purity products,” and Energy Transfer’s NGL pipelines and Philadelphia-area marine terminal continue to play critical roles in balancing the region’s ethane and LPG markets. In today’s RBN blog, we continue our series on the U.S.’s robust-and-growing networks of NGL pipelines, fractionators and export terminals, this time with a look at Energy Transfer’s Mariner West and Mariner East pipeline systems and the company’s Marcus Hook terminal.

U.S. production of natural gas liquids and NGL “purity products” continues to rise (aside from occasional hiccups) and domestic demand for the commodities remains flat, so — you know what’s coming — the vast majority of incremental output of ethane, LPG and natural gasoline is headed for export docks. That’s good news, and so is the fact that the midstream sector has the infrastructure in place — or under development — to handle the increasing volumes of NGLs coming their way. In today’s RBN blog, we begin a series on the U.S.’s robust-and-growing networks of NGL pipelines, fractionators and export terminals, starting with a look at Energy Transfer’s “well-to-water” system for NGL gathering, processing, transportation, fractionation, storage and shipment in Texas.

About two-thirds of all of the propane consumed in the U.S. is used as fuel — for indoor and outdoor cooking, home heating, water heaters, drying crops, and running forklifts and fleet vehicles. The other one-third is used as a feedstock for producing ethylene and other petchems. About 95% of the propane supply to meet this demand is produced and processed right here in the U.S. of A., making propane the most American fuel we’ve got. But when firing up the grill out back and watching that first propane molecule flash to life, most backyard chefs don’t think much about the long and winding road their propane has traveled. It’s actually a fascinating tale of supply-chain logistics that involves high pressures, bitter cold, wild rides up and down tall towers, storage deep underground, and, of course, trains, trucks, and tanks. We think it’s a tale that needs to be told, and that’s what we’ve been doing in this update of another Greatest Hit blog.

When you talk about energy molecules, propane takes the prize for the most versatile. In addition to its well-known uses for BBQ grills, indoor cooking, and home heating, propane is used for drying crops, as a feedstock for petrochemicals, as an engine fuel for forklifts and fleet vehicles, and in recent years, as an export product in its own right. Propane moves to market on pipelines, railcars, ships, barges, trucks — just about any form of transportation you can imagine. But exactly how any particular molecule of propane makes the journey from the instant it comes out of a well to all those market destinations can be a mystery to all but a small cadre of propane market insiders. In another in our series of updates to RBN’s greatest hit blogs, we are delving into this mystery, one step at a time, today focusing on transportation from the producing basin to storage and fractionation at the Mont Belvieu hub, and the transformation of the generic commodity to a marketable fuel.

When firing up the backyard propane grill and watching that first propane molecule flash to life, most people don’t think much about what it took to get that fuel to the cylinder they picked up at the store. But that long and winding road from the production well to the tank beneath your grill is actually a fascinating tale of supply-chain logistics involving producers, midstreamers, and propane retailers. In today’s blog, we will take that interesting and sometimes mysterious trip with a molecule of propane. We will travel over 1,000 miles, moving in and out of various facilities, purifying our product and incurring various costs each step of the way. So strap on your seat belt for a selection from our greatest blog hits, in which we track a typical propane molecule’s journey from beginning to end.

Over the past two years, MPLX has been ramping up its midstream development activity in the Lone Star State, or more specifically in the “Permian-to-Gulf” market, where it’s been building or buying into gathering systems, gas processing plants, and crude and natural gas takeaway pipelines, among other things. Marathon Petroleum Corp.’s midstream-focused master limited partnership also has been in hot pursuit of a number of possible NGL-related projects, including MPLX’s proposed Belvieu Alternative NGL (BANGL) Pipeline and three big fractionation plants in the Sweeny, TX, area, and a planned LPG export terminal in Texas City, TX. As a group, these projects would require millions of barrels of underground salt-cavern storage capacity for y-grade and NGL purity products along the Texas coast, as well as multiple pipeline connections to move the stuff to where it needs to be. Today, we continue our series on Gulf Coast NGL storage with a look at the NGL side of the MLP’s Permian-to-Gulf strategy.