Texas is widely regarded as having one of the most competitive retail electricity markets in the world. Customers across ERCOT can choose among dozens of retail electricity providers, with suppliers competing on price, product structure, service, and brand.
But more than 25 years after the market opened to competition, customer ownership remains surprisingly concentrated.
According to the most recent U.S. Energy Information Administration Form EIA-861 data, the two largest parent companies account for 47.7% of Texas retail electricity load. The five largest account for 74.7%.
Put differently, five parent companies account for roughly three of every four units of retail load in Texas.
Two adjustments underlie these figures. Load is expressed in residential customer equivalents (RCEs) — the industry’s standard normalization, in which one RCE equals 10,000 kWh of annual usage — which places commercial and industrial volumes on the same footing as residential. And operating companies are rolled up to their parents, since a single parent may hold several retail brands and EIA-861 reports at the operating-company level. That second adjustment materially changes the picture: a brand count is not a competitor count.
A Large Market With a Long Tail
NRG alone accounts for more RCEs than the bottom 56 parent companies combined. At the other end of the distribution, the bottom 30 parent companies account for 0.75% of Texas RCEs.
The result is a market dominated by a handful of very large parent companies, followed by a long tail of much smaller ones.
Normalizing all load this way also makes the market broader than the traditional list of retail electricity providers. Walmart, for example, ranks 16th among Texas parent companies by RCEs — reflecting load at its own stores rather than a third-party customer book.
Competition Does Not Necessarily Mean Fragmentation
None of this suggests that the Texas market is uncompetitive.
ERCOT can support considerable competition for customers even when ultimate customer ownership is concentrated, and customers have a wide range of products and brands from which to choose.
The distinction is between the number of choices presented to a customer and the concentration of customers at the parent-company level.
What It Means for Retail Energy M&A
The distribution also helps explain why consolidation has been a recurring feature of competitive retail energy markets.
Scale can matter in retail energy. Customer acquisition costs, technology investments, regulatory and compliance functions, wholesale supply, credit requirements, and corporate overhead can create advantages for larger platforms. At the same time, smaller providers can build valuable customer portfolios, brands, channels, and capabilities that may be worth more as part of a larger organization.
For strategic acquirers, the long tail offers a substantial universe of potential acquisitions even though those companies collectively represent a relatively small percentage of the overall market on an RCE basis.
For independent retail energy companies, a variable the EIA data does not contain matters just as much: where acquirers set their minimum transaction size. In 2024, we noted that the largest buyers had previously considered deals as small as 20,000 RCEs, while four of the five largest strategic acquirers were generally looking for transactions above 100,000 RCEs. Thresholds move with the acquisition cycle, and we would not assume that figure is current. But a minimum anywhere in that range sits above a large share of the tail.
Those five are not the whole buyer universe. We have seen sponsor-backed platforms and aggregators remain active acquirers of independent retail energy businesses, and they underwrite on economics rather than size.
Those characteristics vary widely across the tail. Margin durability, retention, channel mix, and hedge and collateral position can differ substantially between businesses of similar size.
In our experience, scale alone rarely determines value. The quality and durability of the underlying business — and its fit with a particular buyer — ultimately determine how strategic acquirers underwrite an opportunity.
Source: U.S. Energy Information Administration, Form EIA-861, 2025 early release (published August 4, 2026). Early-release data has not been fully validated by EIA; final 2025 figures are scheduled for October 2026, and we will publish updated calculations at that time. Market-share calculations by Ochsner Interests, Inc.
The full parent-level ranking behind this analysis is available on request.
