salt caverns

Keeping up with all the natural-gas-related infrastructure under development along the Gulf Coast is a full-time job. New gas pipelines out of the Permian and the Haynesville. New LNG export terminals from Brownsville, TX, to Plaquemines Parish, LA. And don’t forget new gas storage capacity — that slice of the midstream sector is in the midst of its biggest boom in decades. In today’s RBN blog, we’ll finish our review of the latest round of Gulf Coast storage projects.

A tsunami of natural gas storage projects has been building along the Gulf Coast, most of them aimed at meeting the growing demand for flexible, responsive storage capacity near new LNG export terminals and gas-fired power plants. And the magnitude of that wave keeps growing. In today’s RBN blog, we’ll begin a new mini-series in which we update the storage projects we discussed in a number of posts last year and describe the additional projects that have come to light since then.

Taking a nine- or 10-figure energy infrastructure project from concept to fruition is never easy. Siting dilemmas, permitting woes, commitment-wary customers, financing snags, legal challenges — there are seemingly endless hurdles. And that’s in normal times. Add in market volatility and fast-changing governmental policies and a developer’s job becomes darn-near impossible. In today’s RBN blog, we discuss midstream companies’ uphill battle in advancing infrastructure projects in 2025, focusing on a recently announced greenfield natural gas storage project along the Texas Gulf Coast. 

Rising demand for natural gas storage in the Gulf Coast region has spurred growing interest and investment. A number of midstream companies have been making moves, either by expanding their existing storage facilities in Texas, Louisiana, Mississippi and Alabama or entering the space with acquisitions or plans for greenfield projects. As a result, more than 150 Bcf of new gas storage space is in various stages of development. In today’s RBN blog, we discuss highlights from our new Drill Down Report on Gulf Coast gas storage. 

It’s relatively common along the U.S. Gulf Coast to use underground salt domes to store crude oil, natural gas, mixed NGLs and so-called NGL “purity products” like ethane and propane. There are also a handful of salt cavern storage facilities in Kansas, Michigan, New York and Virginia. But in the Rockies and the West Coast states they’re rare as hen’s teeth, one of the few examples being Sawtooth Caverns, a one-of-a-kind facility in Utah that not only stores propane and butanes but also gasoline and diesel. In today’s RBN blog, we discuss Sawtooth Caverns and its increasing role in the sprawling region’s NGL and refined products markets. 

Many of the natural gas storage projects under development along the Gulf Coast involve the expansion of existing salt-cavern complexes and, with that, the sharing of at least some already-built infrastructure. That typically saves money, and the lower capital costs can help make a project a “go.” But at least a few well-sited projects competing for commitments are greenfield in nature and require not just the buildout of storage capacity itself but also the development of compression, freshwater wells, saltwater disposal wells, electricity supply, header pipelines and pipeline interconnections. In today’s RBN blog, we discuss two of the largest greenfield projects in the works: the Black Bayou Energy Hub in southwestern Louisiana and the Freeport Energy Storage Hub (FRESH).

As a group, Texas, Louisiana, Mississippi and Alabama have more than 1.1 trillion cubic feet of natural gas storage capacity, most of it along — or within easy reach of — the Gulf Coast, with its long-and-growing list of LNG export terminals as well as gas-consuming industries and gas-fired power plants. That’s a good thing, but still more gas storage will be needed to help ensure there is sufficient gas in hand to meet the region’s rising — and increasingly volatile — requirements. In today’s RBN blog, we’ll continue our review of Gulf Coast storage projects with a look at plans by Trinity Gas Storage and Caliche Storage.

Very little new natural gas storage capacity has been built along the Gulf Coast the past few years, but that’s changing. Driven by rising demand from power generators, LNG operators/offtakers, marketers and traders for storage with high deliverability rates — and by improving storage economics — new salt-cavern and depleted-reservoir capacity is now being developed by midstream players large and small, with plans for a lot more. In today’s RBN blog, we‘ll continue our review of gas storage projects in Texas, Louisiana and Mississippi with a look at what Kinder Morgan, EnLink Midstream and Enstor Gas have been up to.

Fast-changing dynamics in Gulf Coast natural gas, electricity and LNG export markets are increasing the value of gas storage in Texas, Louisiana and Mississippi — or, more specifically, the merit of quickly injecting and withdrawing gas to respond to market swings. As a result, interest in developing gas storage projects with high “deliverability" rates has taken off, with billions of cubic feet of new storage capacity already coming online and a lot more in the works. In today’s RBN blog, we’ll begin a look at why so many market participants — power generators, LNG operators/offtakers, midstreamers, marketers and traders — are chasing the “extrinsic” value of gas storage and where the new storage projects are being built.

Storage has long been a critically important balancing mechanism in the Lower 48 natural gas market. Now, after languishing for much of the Shale Era, storage values are coming out of the doldrums. The key driver behind this change is that, unlike in the old days, when the storage market was driven primarily by the intrinsic value of capacity — i.e., the need to sock away gas in the lower-demand summer months for use in the peak winter months — the value of storage is being driven almost exclusively by extrinsic economics — i.e., how flexible and responsive capacity allows market participants to manage supply and demand during short-term market swings. This flexibility and responsiveness have become increasingly important criteria for ensuring reliability as LNG export facilities and an increasingly renewables-heavy power sector navigate frequent demand fluctuations day to day, or even intraday, as well as during high-stakes, extreme weather events like 2021’s Winter Storm Uri. In today’s RBN blog, we delve into the fundamental shifts influencing today’s storage market.