United States Permian Gas Gathering and Processing Market, 2025-2031: Five Owners Hold 79% of Capacity, Pro Forma

Permian gas gathering and processing operators earned an estimated $11.3 billion in gross margin in 2025, forecast to grow 5.5% a year to $15.6 billion by 2031, as five integrated owners move to about 79% of the basin's named processing capacity once the Vaquero deal closes.

Energy Transfer's $2.625 billion agreement to buy Vaquero Midstream, announced on 6 October 2026, extends a consolidation that, once that deal closes, gives five integrated owners about 79% of the basin's named processing capacity. By this report's analysis, the consolidation carried no visible scarcity premium, and deal terms suggest buyers were also securing the right to build the next plants. The basin's plant headroom is thin, though: one to two years of growth at this year's pace before plants reach a practical ceiling, on an estimate of unlisted capacity.

Permian gathering and processing operators earned an estimated $11.3 billion in gross margin in 2025, which is revenue less gas and NGL purchases, not revenue. The report forecasts 5.5% annual growth to $15.6 billion by 2031.

The 80-page report includes 16 charts and figures, 12 data tables and profiles of 14 companies, among them Energy Transfer, Targa Resources, Enterprise Products Partners, ONEOK, Kinetik and Western Midstream. It segments the market by sub-basin and owner type and carries conservative, base and optimistic scenarios to 2031, with a 10-year view to 2035.

Report Highlights:

• Consolidation Without a Visible Scarcity Premium: Permian gas gathering and processing consolidated without a visible scarcity premium, by this report's analysis. Integrated owners hold about 79% of the basin's named processing capacity pro forma for the 2025-26 deals. The report compares the price paid per unit of plant capacity across the 2026 deals, on announced and on current capacity, and measures how full each filing operator ran its plants.
• Two Sizing Methods, One Estimate: Two sizing methods that share one operator's margin input converge on the $11.3 billion estimate of 2025 gross margin. The report sets out each method, the 80% interval around the point estimate and three growth scenarios around the 5.5% base case.
• The Margin Pool by Owner Type and Sub-Basin: Integrated owners earn a smaller share of the margin pool than of capacity, because stand-alone gatherers earn more per unit processed; this is an allocation by capacity and unit margin. The Delaware Basin is the larger sub-basin on an allocation by plant capacity and, by assumption, the faster-growing. The report sizes both segmentation views, with growth rates to 2031.
• Headroom and the Next Plants: The next contest is over who builds the next plants. Against year-end 2025 capacity, basin headroom is one to two years of growth at EIA's 2026 pace, or two to three at the base case's pace, before plants reach an assumed practical ceiling of about 92%; both figures rest on an estimate of unlisted capacity. Two of the three largest owners have run near full on their latest reported figures: Enterprise Products Partners at about 95% in the second quarter of 2026 and Energy Transfer at about 92% at the record it reported in mid-2025.
• Data-Center Demand, Weighted for Status: Data-center power on Permian gas is mostly a 2030s option. Weighted for project status, the Kilby, GW Ranch and CloudBurst projects and Energy Transfer's added Texas power contracts need a small share of basin gas by 2030; the report sizes that demand and its nameplate ceiling project by project. No final investment decision is reported for the three largest projects. The nearer swing factor is egress. New takeaway capacity and hot weather lifted Waha prices above zero on 15 June 2026 after months below zero, although an overbuild is possible through parts of the rest of the decade, with renewed constraint risk in the first half of 2028.

This report will provide answers to the following questions:

• How large is the Permian gas gathering and processing market, measured as gross margin, and how fast will it grow to 2031?
• Who owns the basin's processing capacity after the 2025-26 deals, and what did buyers pay per unit of plant capacity?
• How much plant headroom does the basin have before new plants are needed, and which plants are under construction or approved?
• How does the margin pool split between integrated owners and stand-alone gatherers, and between the Delaware and Midland basins?
• How much Permian gas will data-center power need by 2030, weighted for project status?
• What would a 2028 egress constraint mean for gathering and processing?
• What would prove the report's thesis wrong?

Methodology

Our analysis originates from primary research - direct interviews with executives, operators, and technical practitioners actively shaping these markets. This fieldwork provides access to perspective and data not available in secondary sources: what decision-makers are observing in real time, the problems driving purchasing behavior, and where they see value migrating. Every data point and claim undergoes human verification before inclusion; figures that cannot be substantiated or traced to credible sources are excluded.

Market sizing triangulates across multiple independent estimation methods, producing investment-grade estimates with assumptions documented explicitly so readers can evaluate the underlying logic, stress-test key inputs, and defend the numbers in boardrooms and diligence processes. We validate quantitative claims against peer-reviewed research, regulatory filings, and observable market signals - including systematic searches for contradicting evidence. Where methods produce divergent estimates, we investigate the source of variance and report ranges rather than false precision. Forecasts are constructed through scenario modeling anchored to base rates from comparable markets. (While every effort has been made to ensure accuracy, forward-looking statements reflect current expectations and are subject to risks, uncertainties, and assumptions that may cause actual results to differ materially.)

The result is thesis-driven analysis that delivers clear conclusions: specific enough to cite, transparent enough to verify, comprehensive enough to satisfy diligence requirements, and rigorous enough to withstand the follow-up question.

Target Audience

• Midstream and energy equity investors and analysts
• Corporate development and M&A teams at midstream and energy companies
• Lenders and credit analysts covering midstream
• Permian producers and their gas marketing teams
• Power and data-center developers sourcing Permian gas