Callie Mitchell

Yup. Pigs are critical to the safety and integrity of pipelines. Some are your basic utilitarian pigs, while others are quite smart, if not downright cool. No, these are not the pigs down on the farm. Instead, these pigs are devices run through pipes to clean, inspect, and support “batching” on hydrocarbon pipeline networks. They help ensure the safe and efficient transportation of crude oil, NGLs, petroleum products, and natural gas through more than 2.5 million miles of pipeline in the U.S. If you’re interested in energy and energy delivery, you’ve gotta know about pigs, and that's just what we'll be discussing in today’s blog.

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 five years, the production of natural gas liquids from gas processing plants has soared by almost 2 million barrels per day (2 MMb/d), or about 60%. That has been great news for natural gas producers, processors, and end-use markets. But there is a catch: the rate of production does not match up with demand. While production is a steady, “ratable” volume, demand is anything but ratable. Demand swings with the gasoline blending season, cold weather (or lack thereof) in the propane market, export demand, petchem feedstock economics, the impact of COVID-19 on transportation fuels, and a myriad of other factors. The flywheel that balances supply and demand on any given day is storage. Not just any storage, though. For NGLs, storage of large volumes means salt caverns. Huge caverns thousands of feet below the surface. Today, we update one of RBN’s Greatest Hits blogs and take a deep dive into the history of NGL storage — all the way back to Smoky Billue.