Key Takeaways
- • Blackstone Infrastructure's $11.5 billion acquisition of TXNM Energy (PNM's parent company) announced in May 2025 has been placed on hold following a New Mexico Public Regulation Commission (PRC) ruling that a $400 million interim stock sale violated state law.
- • The disputed $400 million stock transaction occurred in June 2025 between TXNM Energy and a Blackstone affiliate without prior PRC authorization, violating the state Public Utilities Act requirement that stock sales receive "prior express authorization of the commission."
- • New Mexico regulatory examiners recommended reversing the $400 million stock purchase during a June 2026 hearing, with the PRC ruling pushing Blackstone's takeover back by at least one year and potentially jeopardizing the entire deal.
- • Both PNM and Blackstone have denied wrongdoing, contending the interim stock sale was necessary to support TXNM Energy's operations while the merger was pending regulatory approval.
- • The deal faced opposition from environmental advocates and New Mexico Attorney General Raúl Torrez, who raised concerns about the legality of the stock transaction in February 2026, prompting a formal PRC investigation in March 2026.
Summary
Blackstone Infrastructure's proposed $11.5 billion acquisition of TXNM Energy, announced in May 2025, has encountered significant regulatory obstacles following a June 2026 New Mexico Public Regulation Commission ruling that found a $400 million interim stock transaction violated state law. The ruling has effectively halted the transaction and requires it to restart the approval process, delaying the deal by at least one year and potentially threatening its viability.
The central dispute involves a $400 million stock sale executed in June 2025 between TXNM Energy (PNM's parent company) and a Blackstone affiliate that occurred without prior authorization from the New Mexico PRC. Under state Public Utilities Act provisions, such transactions require "prior express authorization of the commission" before proceeding. This procedural violation was initially flagged in February 2026 by Prosperity Works, an Albuquerque anti-poverty nonprofit, and New Mexico Attorney General Raúl Torrez, prompting the PRC to open a formal investigation in March 2026.
In response to regulatory inquiries, PNM and Blackstone Infrastructure filed responses contending that the stock sale did not violate state law. Both entities argued that the $400 million transaction was operationally necessary to support TXNM Energy's ongoing operations while the larger merger proceeded through the regulatory approval process. Despite their defense, regulatory examiners recommended during a June 2026 hearing that the PRC reverse the stock purchase entirely.
The failed transaction represents a significant setback for one of the nation's largest private equity firms and reflects mounting scrutiny of major utility acquisitions. The deal has drawn opposition from environmental advocates and state officials concerned with both procedural compliance and the substance of the transaction. As Blackstone must now restart its acquisition process from the beginning, the timeline for completing the takeover of New Mexico's largest electric utility has been pushed substantially further into the future.
The central dispute involves a $400 million stock sale executed in June 2025 between TXNM Energy (PNM's parent company) and a Blackstone affiliate that occurred without prior authorization from the New Mexico PRC. Under state Public Utilities Act provisions, such transactions require "prior express authorization of the commission" before proceeding. This procedural violation was initially flagged in February 2026 by Prosperity Works, an Albuquerque anti-poverty nonprofit, and New Mexico Attorney General Raúl Torrez, prompting the PRC to open a formal investigation in March 2026.
In response to regulatory inquiries, PNM and Blackstone Infrastructure filed responses contending that the stock sale did not violate state law. Both entities argued that the $400 million transaction was operationally necessary to support TXNM Energy's ongoing operations while the larger merger proceeded through the regulatory approval process. Despite their defense, regulatory examiners recommended during a June 2026 hearing that the PRC reverse the stock purchase entirely.
The failed transaction represents a significant setback for one of the nation's largest private equity firms and reflects mounting scrutiny of major utility acquisitions. The deal has drawn opposition from environmental advocates and state officials concerned with both procedural compliance and the substance of the transaction. As Blackstone must now restart its acquisition process from the beginning, the timeline for completing the takeover of New Mexico's largest electric utility has been pushed substantially further into the future.
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