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Ruby, Ruby, When Will You Be Mine – Tallgrass Bid Breathes New Purpose into Languishing Ruby Pipeline

By May 16, 2025No Comments

Tallgrass Energy last month snagged an early Christmas present: It won a bid for Ruby Pipeline, the beleaguered Rockies-to-West Coast natural gas system that has long been underutilized and cash-poor. In doing so, it beat out one of the largest midstream companies in North America and a long-time co-owner of Ruby — Kinder Morgan. Ruby may be a languishing asset, but for Tallgrass it’s more like a crown jewel in its quest to be the only transcontinental header system in the country that would connect trapped Appalachian gas supply with premium West Coast markets. Tallgrass’s Rockies Express (REX) pipeline is already moving Marcellus/Utica molecules west to the Rockies — the opposite direction than it was originally built for in the pre-Shale Era. The Ruby acquisition, which has yet to close, would allow Tallgrass to extend its reach farther west, directly into the premium West Coast markets. The Ruby deal comes at a time when California’s aggressive decarbonization goals are leading to gas shortages and exorbitant fuel premiums out west, and there’s an immediate need to debottleneck routes to get gas there. In today’s RBN blog, we begin a series delving into how Ruby fits into the Western U.S. gas market and what the acquisition would mean for Tallgrass.

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