AUSTIN, Texas, Aug. 25, 2025 /PRNewswire/ -- WhiteWater today announced that WhiteWater, MPLX LP (NYSE: MPLX), ONEOK, Inc. (NYSE: OKE) and Enbridge Inc. (NYSE: ENB), through their Matterhorn joint venture ("Matterhorn JV"), have partnered with affiliates of ONEOK and MPLX and reached final investment decision to move forward with the construction of the Eiger Express Pipeline, having secured sufficient firm transportation agreements with primarily investment grade shippers.
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