Fracking Bonanza Eludes Wastewater Recycling Investors

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After two years searching for a blockbuster investment in oilfield water management, fund manager Judson Hill is still holding on to his money.

Hill’s NGP Energy Capital Management saw potential in what looked like a hot growth area in energy: treating and recycling the 21 billion barrels of wastewater flowing annually from U.S. oil and natural gas wells -- particularly from shale.