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PennEast Supreme Court Case Key to Columbia Potomac Pipeline Too
Here’s a connection we hadn’t made until we read about yesterday’s oral arguments before the U.S. Supreme Court in PennEast Pipeline vs. New Jersey. The connection is this: The PennEast case also has huge ramifications for another currently-stalled M-U pipeline. Columbia Gas wants to build a tiny 3.37-mile, 8-inch pipeline under the Potomac River from Maryland to West Virginia. It is being blocked from doing so by the lefties in Maryland (see Fed Judge Upholds Maryland Decision to Block Pipe Under Potomac). Maryland is using the same flawed argument NJ is using. If PennEast wins its case (which is likely), Columbia will have grounds to challenge Maryland.
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Here’s another “XPress” pipeline to add to Columbia’s (TC Energy’s) long list of other XPress pipelines: East Lateral XPress. Columbia has built a number of XPress pipelines, including Gulf XPress, Mountaineer XPress, WB Xpress, Leach XPress, Rayne XPress, Buckeye XPress, and Louisiana XPress, all of which work together to flow (in part) Marcellus/Utica natural gas to points south, including to the Gulf Coast (
The Federal Energy Regulatory Commission (FERC) finally, after months of dithering, granted approval to TC Energy to begin construction of its Louisiana XPress project to beef up flows along the existing Columbia pipeline system by an additional 850 million cubic feet per day (MMcf/d) by adding three new compressor stations and expanding a fourth compressor in Louisiana.
Here’s a new one for us: The Leach XPress pipeline project has a teeny tiny presence in the southwestern corner of Pennsylvania. We did not know that! Just 1.74 miles of the pipeline runs through PA, but that small section has earned the builder, Columbia Gas, a big fine.
“Hurry it up, will ya?” That was the upshot of a message sent by TC Energy to the Federal Energy Regulatory Commission (FERC) with respect to giving final approval for its Louisiana XPress project. FERC granted the project a favorable environmental assessment (EA) on February 6 (see 
TC Energy’s Columbia Gas Transmission subsidiary has not given up on building a 3.37-mile, 8-inch pipeline under the Potomac River. The pipeline, from Maryland on one side of the river to West Virginia on the other side, will be built to feed a larger pipeline project from Mountaineer Gas called the Eastern Panhandle Expansion. The crazy anti-fossil fuel loons who run Maryland are trying to block the project. Columbia is asking the Federal Energy Regulatory Commission (FERC) for more time to get it built because of Maryland’s interference.
Whew. We can now breathe a sigh of relief. On July 7 TC Energy’s Columbia Gas Transmission subsidiary announced an unplanned outage (for maintenance work) for the Mountaineer XPress (MXP) pipeline in West Virginia–near Leach, Kentucky (see 
Can a single pipeline suddenly going offline in the Marcellus/Utica cause the biggest daily drop in natural gas production across the country–ever? Apparently it can. Yesterday TC Energy’s Columbia Gas Transmission subsidiary announced an unplanned outage (for maintenance work) for the Mountaineer XPress pipeline in West Virginia (near Leach, Kentucky). The “force majeure” outage knocked nearly 2 billion cubic feet per day (Bcf/d) of gas flows offline until at least next Monday, July 13.
Two of the largest not-yet-completed pipeline projects in the Marcellus/Utica, Mountain Valley Pipeline (MVP) and Atlantic Coast Pipeline (ACP), are currently on hold with no construction activity due to various legal challenges by Big Green (see today’s story, Mountain Valley Pipe Update: Done and In-Service Early 2021). However, there are several other large and small M-U pipeline projects where construction continues, even with restrictions from the coronavirus pandemic. Which pipelines?
Anti-fossil fuelers are on a holy mission to stop a 3.37-mile, 8-inch pipeline from being built under the Potomac River by Columbia Gas (see 
TC Energy (once upon a time called TransCanada Corporation) is a major pipeline company in North America. The company has a big presence in the Marcellus/Utica region via its Columbia Pipeline subsidiary. Last week TC Energy issued its fourth-quarter and full-year 2019 update and hosted a quarterly conference call with analysts. While the official update contains a mention about the company’s Buckeye XPress project (see 
