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Acquisition further scales Iron Oak Energy's Northern White platform, enhancing support for Marcellus and Utica clients, with superior capacity, distribution, and efficiency.

• Acquired assets include the Wyeville, Wisconsin plant, with over three million tons per year of Northern White Sand capacity, and strategic terminal distribution assets in the heart of Marcellus and Utica shale plays.
• Acquisition provides Iron Oak Energy's Northern White Sand assets direct access to multiple Class I railways serving the Appalachia region, creating a highly advantaged and efficient distribution network for operators.
• Increases Iron Oak Energy's total production capacity to 37 million tons per year, with balanced exposure to both oil and natural gas basins.

HOUSTON, Aug. 11, 2025 /PRNewswire/ -- Iron Oak Energy Solutions LLC (Iron Oak Energy or the Company), a leading multi-basin proppant supplier for North American oil and gas companies, today announced the acquisition of the Northern White assets of HC Minerals, Inc. The enhanced production capabilities and distribution network significantly expands Iron Oak Energy's ability to serve customers in the largest U.S. natural gas shale play.