Xcel Energy's Public Service Company of Colorado Reaches $123 Million Natural Gas Rate Settlement with Colorado Regulators

PSCo's Original $190 Million Rate Case Request and What Changed

In December 2025, Public Service Company of Colorado filed a natural gas rate case with the Colorado Public Utilities Commission seeking a revenue increase of $190 million, representing an 11.6% rise. That original request was grounded in a proposed return on equity of 10.75%, an equity ratio of 55%, and a 2025 test year using a projected rate base of $4.7 billion. The filing signaled PSCo's intention to recover costs associated with its infrastructure investments and ongoing operational requirements.

The settlement filed on July 13, 2026, substantially modifies those original terms. The agreed revenue increase stands at $123 million — a reduction of $67 million from the initial request. The settlement characterizes this as a 7.5% total increase, or an annual average of 3.7% since the last rate case was resolved. This comparison to the prior rate case cycle provides important context for understanding the cumulative pace of rate growth facing PSCo's natural gas customers in Colorado.

Key Financial Terms Embedded in the Settlement Agreement

The settlement agreement sets a return on equity of 9.2%, compared to the 10.75% that PSCo had originally sought. The agreed equity ratio is 54.5%, marginally below the 55% proposed in the original filing. These two metrics are central to utility regulation because they directly determine the authorized profit level built into customer rates and influence how much capital PSCo can cost-effectively deploy in its regulated infrastructure base.

The settlement is based on a 2025 historic test year using average rate base, with forward-looking known and measurable adjustments factored in. This methodology is standard in utility rate proceedings and reflects actual historical costs rather than purely projected figures, though forward-looking adjustments allow regulators to account for capital investment already committed or completed. The company did not disclose the specific dollar value of the rate base used in the settlement calculation beyond the $4.7 billion projected rate base noted in the original filing.

Who Signed On — and Who Did Not — in the Non-Unanimous Agreement

The settlement was jointly filed by PSCo alongside a broad group of stakeholders, including CPUC Staff, the Colorado Office of the Utility Consumer Advocate, the Colorado Energy Office, Western Resource Advocates/Sierra Club, and Energy Outreach Colorado, among various other parties. The breadth of this coalition is notable and suggests that the negotiated terms represent a compromise acceptable to a wide range of consumer, environmental, and regulatory interests in the state.

However, the agreement is explicitly described as non-unanimous. The disclosure states that several parties either do not oppose or take no position on the settlement, while one transportation shipper has formally opposed it. The identity of the opposing transportation shipper and the specific basis for that opposition were not detailed in the filing. The presence of a dissenting party means the CPUC will still need to evaluate whether the settlement, taken as a whole, is in the public interest before approving it.

Anticipated CPUC Hearing Schedule and Timeline for Final Rates

According to the disclosure, hearings to discuss the settlement are scheduled to take place in July 2026. These proceedings will give the CPUC an opportunity to review the terms of the agreement, hear from any objecting parties — including the opposing transportation shipper — and assess whether the settlement adequately serves the public interest under Colorado utility law. The CPUC is not bound to approve the settlement as filed, even where a majority of parties are in favor.

The filing states that a CPUC decision and implementation of final rates is anticipated in the fourth quarter of 2026. This timeline, if realized, would bring clarity to PSCo's natural gas revenue recovery for the near-term regulatory cycle. Utility investors typically monitor rate case timelines closely because delays in regulatory decisions can affect a company's ability to begin recovering invested capital and affect near-term earnings visibility. The company presented this timeline as an expectation, noting it is subject to the forward-looking risks described in the filing.

Xcel Energy's Corporate Structure and the Role of PSCo

Public Service Company of Colorado is a wholly owned subsidiary of Xcel Energy Inc., a Minnesota corporation headquartered at 414 Nicollet Mall in Minneapolis. PSCo itself is a Colorado corporation operating out of Denver. As a regulated utility subsidiary, PSCo's financial performance is largely determined by the rates it is authorized to charge customers — rates that are set through proceedings exactly like this natural gas rate case before the CPUC.

Xcel Energy operates across multiple states through various utility subsidiaries, and PSCo represents a significant part of the consolidated enterprise. Regulatory outcomes in Colorado therefore carry meaningful weight for Xcel Energy's overall regulated revenue and earnings profile. The parent company's 6.25% Junior Subordinated Notes due 2085 trade on NASDAQ under the symbol XELLL, while Xcel Energy's common stock trades under the symbol XEL, also on NASDAQ. Both securities may be watched by investors who track PSCo's regulatory outcomes as a component of Xcel Energy's broader financial picture.

PSCo's Natural Gas Rate History and the 3.7% Average Annual Increase Context

The settlement frames the $123 million increase as equating to an annual average revenue growth of 3.7% since the last rate case was finalized. This framing is significant because it places the current proposed increase within a longer regulatory cycle rather than presenting it as a sudden or outsized jump. For regulated utilities, rate increases are typically evaluated not only in absolute dollar terms but also relative to inflation, infrastructure investment requirements, and the elapsed time since the previous case.

The company did not disclose in this filing the specific dollar amount or percentage of the prior rate case settlement, the year it was implemented, or the total cumulative revenue base from which the current 7.5% increase is calculated. Investors seeking to compare the current settlement to historical rate case outcomes would need to consult prior company disclosures and CPUC records for that context.

Forward-Looking Risks Cited by PSCo and Xcel Energy

The filing includes an extensive list of forward-looking risk factors that could cause actual results to differ materially from management expectations. Among the risks highlighted are operational safety, wildfire-related liabilities, commodity and fuel price exposure, regulatory changes, credit rating reductions, cybersecurity threats, and general macroeconomic conditions including inflation and supply chain constraints. The company also specifically flagged regulatory changes and limitations related to the use of natural gas as an energy source as a risk factor — a disclosure that reflects the evolving policy environment around fossil fuel use in utility systems.

Additional risks cited include the company's ability to attract and retain a qualified workforce in a challenging labor market, the ability to execute on environmental, social, and governance strategies, and uncertainty surrounding epidemics and geopolitical events such as war and acts of terrorism. The disclosure also noted that the costs of potential regulatory penalties and wildfire damages in excess of liability insurance coverage represent a distinct risk category — a reference that may be particularly relevant given the history of wildfire-related litigation affecting utilities in western states. These risks apply to all forward-looking statements in the filing, including the anticipated Q4 2026 rate implementation timeline.

Significance of the Settlement Structure for Colorado Utility Customers

From a customer impact perspective, the settlement represents a meaningful reduction from the originally requested rate increase. A $123 million revenue increase versus the $190 million sought translates to meaningfully lower rate pressure on PSCo's natural gas customers in Colorado. The involvement of the Colorado Office of the Utility Consumer Advocate — whose role is explicitly to represent consumer interests in regulatory proceedings — as a signatory to the settlement lends some credibility to the view that the agreed terms represent a reasonable balance between utility cost recovery and customer affordability.

The inclusion of Energy Outreach Colorado, an organization focused on energy assistance for low-income customers, among the settling parties may also be of interest to observers focused on how the rate increase affects vulnerable populations. However, the filing does not detail any specific provisions within the settlement related to low-income protections, bill assistance programs, or phased implementation provisions. Investors and stakeholders seeking granular terms beyond those summarized in the filing would need to review the full settlement document filed with the CPUC.

Authorized Signatories and Corporate Governance of the Filing

The disclosure was signed by Brian J. Van Abel, Executive Vice President and Chief Financial Officer, on behalf of both Xcel Energy Inc. and Public Service Company of Colorado, with the filing dated July 14, 2026. The filing was made simultaneously on behalf of both registrants, consistent with the dual-registrant structure that Xcel Energy and PSCo maintain with the CPUC and securities regulators. This structure means that material developments at the PSCo subsidiary level are reported as current events by the parent company as well.

The simultaneous co-filing reflects the integrated regulatory and financial reporting relationship between the parent and subsidiary. Both Xcel Energy Inc. and PSCo are listed as registrants on the filing, each with their own Commission File Numbers — 001-3034 and 001-3280, respectively — and each with their own IRS Employer Identification Numbers. This dual-entity reporting structure is standard practice for Xcel Energy's utility subsidiaries and ensures that material developments at the operating company level are disclosed to investors holding securities of either entity. The immediate share price impact was not clear from available public information.