WhiteWater announced the expansion of the Eiger Express pipeline’s transport capacity, increasing it from 2.5 to 3.7 billion cubic feet per day (Bcf/d), following the signing of additional firm transportation agreements. To enable this increase, the mainline diameter has been enlarged from 42 to 48 inches and new compression units will be installed along the network.
The project maintains its expected in-service date of mid-2028, subject to customary regulatory approvals. The Eiger Express pipeline is designed to transport natural gas from the Permian Basin in West Texas to the Katy area, a key redistribution hub for export markets.
A consortium built around Matterhorn JV
The infrastructure is owned by a joint venture consisting of Matterhorn JV at 70%, ONEOK at 15%, and MPLX at 15%. Matterhorn JV itself is composed of WhiteWater (65%), ONEOK (15%), MPLX (10%), and Enbridge (10%). This ownership structure brings together major players in the gas transportation sector operating between production zones and coastal terminals.
The Eiger Express pipeline provides direct access to several liquefaction facilities on the Gulf Coast dedicated to liquefied natural gas (LNG) exports. This connectivity addresses rising international demand while securing volumes for domestic operators.
Firm contracts and capacity expansion
The decision to increase capacity was made possible through new firm transportation agreements, reflecting producers’ confirmed interest in reliable access to LNG terminals. These long-term contractual commitments support the project’s profitability and help amortise the investments related to pipeline enlargement and additional facilities.
WhiteWater holds its stake in the Matterhorn JV through FIC and I Squared Capital. ONEOK’s and MPLX’s direct stakes in the Eiger Express joint venture are in addition to their shares in the Matterhorn JV, reinforcing their exposure along the strategic corridor linking the Permian Basin to coastal infrastructure.
