Western Midstream to Acquire Aris Water for $1.5 Billion

This summer, like the spring, winter and fall that preceded it, has seen a lot of dealmaking among midstreamers. And not just M&A and divestitures by the folks who gather, transport and process hydrocarbons but a major acquisition — and a rare IPO! — in the produced water slice of the midstream pie. Apples and oranges, maybe, but there are two common themes, namely that bigger is better and that zeroing in on core areas is key. In today’s RBN blog, we discuss some of the most significant midstream deals of Q3 2025. 

There’s a lot going on in the Permian produced water space lately. Crude-oil-focused production in the prolific shale play is generating vast and increasing volumes of produced water that needs to be recycled or injected into disposal wells. State regulators, concerned about injection-related seismic activity, are tightening their rules, ramping up oversight and cracking down. Produced water gathering systems are being expanded and long-distance pipelines are being planned and built. In today’s RBN blog, we discuss the latest developments and where things are heading.

Through the early years of the Shale Era, produced water gathering systems in the Permian were mostly small, simple and focused solely on transporting the salty, petroleum- and mineral-tainted water emerging from wells to nearby saltwater disposal wells. In the 2020s, though, these systems — now mostly owned and operated by third-party produced water specialists — have been becoming larger, more interconnected, and more likely to include at least some water recycling and reuse. In today’s RBN blog, we’ll continue our look at big, far-reaching produced water systems in West Texas and southeastern New Mexico.