PSO Navigates Economic Headwinds, Regulatory Landscape

TL;DR

**PSO's stable but regulated operations are a foundational piece of AEP's portfolio, making it a safe bet for long-term utility investors, despite regulatory hurdles.**

AI Summary

PUBLIC SERVICE CO OF OKLAHOMA (PSO) is an AEP electric utility subsidiary engaged in generation, transmission, and distribution in eastern and southwestern Oklahoma. As of September 30, 2025, PSO had 9,013,000 shares of $15 par value common stock outstanding. The company is part of a combined Form 10-Q filing with American Electric Power Company, Inc. (AEP) and other subsidiaries, indicating its financial performance is consolidated within AEP's broader results. PSO is classified as a non-accelerated filer, suggesting a smaller market capitalization or less public float compared to AEP, which is a large accelerated filer. Key risks include changes in economic conditions, electric market demand, inflationary trends, new legislation affecting cost recovery, and volatility in financial markets impacting capital availability. The filing also highlights risks from extreme weather, natural disasters, and the ability to recover fuel and other energy costs through regulated rates.

Why It Matters

For investors, PSO's performance is intrinsically linked to American Electric Power (AEP), as it's a key regulated utility within AEP's Western Region. Its ability to recover costs through regulated rates directly impacts AEP's consolidated earnings and dividend stability. Employees face potential operational shifts due to evolving regulatory frameworks and infrastructure investments. Customers in eastern and southwestern Oklahoma rely on PSO for reliable power, and cost recovery mechanisms directly influence their utility bills. In the broader market, PSO's capital expenditures and operational efficiency contribute to the regional energy infrastructure, influencing competitive dynamics with other utilities and renewable energy providers.

Risk Assessment

Risk Level: medium — The risk level is medium due to the inherent regulatory environment and exposure to extreme weather conditions. The filing explicitly mentions 'new legislation adopted in the states in which we operate that alters the regulatory framework or that prevents the timely recovery of costs and investments' and 'the impact of extreme weather conditions, natural disasters and catastrophic events such as storms, hurricanes, wildfires and drought conditions'. While a regulated utility offers stability, these factors introduce significant financial uncertainty.

Analyst Insight

Investors should monitor Oklahoma's regulatory developments closely, particularly regarding cost recovery mechanisms for infrastructure investments and storm restoration. Evaluate AEP's overall capital allocation strategy, as PSO's growth and profitability are tied to AEP's ability to finance new projects and manage debt. Consider the long-term implications of climate change on PSO's operational costs and infrastructure resilience.

Key Numbers

• 9,013,000 — Common Stock Shares Outstanding (Public Service Company of Oklahoma's shares as of October 29, 2025)
• $15 — Par Value per Share (Par value of Public Service Company of Oklahoma's common stock)
• 535,265,602 — AEP Common Stock Shares Outstanding (American Electric Power Company, Inc.'s shares as of October 29, 2025)

Key Players & Entities

• PUBLIC SERVICE CO OF OKLAHOMA (company) — SEC registrant and AEP electric utility subsidiary
• American Electric Power Company, Inc. (company) — Parent company and large accelerated filer
• SEC (regulator) — U.S. Securities and Exchange Commission
• $15 (dollar_amount) — par value per share of common stock for PSO
• 9,013,000 (dollar_amount) — number of common stock shares outstanding for PSO as of October 29, 2025
• September 30, 2025 (date) — end of the quarterly period for the 10-Q filing
• October 29, 2025 (date) — date of common stock outstanding count
• Oklahoma (location) — primary service territory for PSO
• Form 10-Q (regulatory_filing) — quarterly report filed by the registrants
• AEP Texas Inc. (company) — AEP electric utility subsidiary and SEC registrant

FAQ

Risk Factors

• Changes in Laws and Regulations [medium — regulatory]: Changes in laws and regulations, including environmental laws, could increase compliance costs and affect the company's ability to recover costs through regulated rates. For example, new environmental regulations could require significant capital expenditures for pollution control equipment, impacting profitability if not fully recoverable.
• Electric Market Demand Fluctuations [medium — market]: The company's revenue is directly tied to the demand for electricity. Economic downturns or shifts in industrial activity in its service territory can lead to reduced demand, impacting revenue and profitability. For instance, a significant decline in manufacturing in eastern or southwestern Oklahoma would directly reduce electricity sales.
• Extreme Weather and Natural Disasters [high — operational]: PSO's infrastructure is vulnerable to damage from extreme weather events such as hurricanes, tornadoes, and ice storms. Such events can lead to significant repair costs, service disruptions, and potential loss of revenue, impacting financial performance and requiring substantial capital for restoration and hardening efforts.
• Volatility in Financial Markets [medium — financial]: Disruptions in financial markets can affect the company's ability to access capital on favorable terms. This is critical for funding ongoing operations, capital expenditures, and debt refinancing. Increased interest rates or reduced credit availability could significantly raise borrowing costs.
• Cost Recovery Through Regulated Rates [high — regulatory]: PSO operates under a regulated rate structure, meaning its ability to recover fuel and other energy costs is subject to regulatory approval. Delays or denials in rate increase requests can lead to a mismatch between incurred costs and revenue, negatively impacting earnings.
• Inflationary Trends [medium — market]: Rising inflation can increase the cost of fuel, labor, and materials, putting pressure on operating margins. If these increased costs cannot be fully recovered through regulated rates in a timely manner, it will negatively affect profitability.

Industry Context

Public Service Company of Oklahoma (PSO) operates within the regulated electric utility sector, primarily serving eastern and southwestern Oklahoma. The industry is characterized by significant capital intensity, reliance on regulated rate structures for cost recovery, and increasing pressure to invest in grid modernization and cleaner energy sources. Competition is generally limited due to the nature of regulated monopolies, but PSO faces indirect competition from alternative energy providers and the need to adapt to evolving customer energy consumption patterns.

Regulatory Implications

As a regulated utility, PSO's operations and financial performance are heavily influenced by state regulatory bodies, primarily the Oklahoma Corporation Commission. Key implications include the need for regulatory approval for rate changes, capital investments, and operational changes. Failure to obtain timely cost recovery for fuel and infrastructure upgrades can significantly impact profitability and financial stability.

What Investors Should Do

1. Monitor regulatory filings and rate case outcomes.
2. Assess the impact of weather events on operational costs and capital expenditures.
3. Evaluate the company's capital structure and access to financing.

Glossary

Non-accelerated filer

A type of filer with the SEC that is not required to comply with certain enhanced disclosure and reporting requirements applicable to larger public companies. This classification is typically based on market capitalization. (Indicates PSO's relative size and reporting obligations compared to its parent company, AEP.)

Common stock

A class of stock that represents ownership in a corporation and entitles the owner to a portion of the corporation's profits and assets. Holders typically have voting rights. (PSO has 9,013,000 shares of common stock outstanding with a par value of $15 per share.)

Par value

An arbitrary nominal value assigned to a share of stock by the issuing company, often set at a very low amount (e.g., $0.01 or $15 in this case) and bearing little relation to the stock's market value. (PSO's common stock has a par value of $15 per share.)

Consolidated financial statements

Financial statements that combine the financial information of a parent company and its subsidiaries into a single set of statements, presenting them as if they were a single economic entity. (PSO's financial performance is consolidated within AEP's broader financial reporting.)

Year-Over-Year Comparison

This analysis is based on a single 10-Q filing and does not contain comparative data from a previous filing. Therefore, a comparison of key metrics such as revenue growth, margin changes, or the emergence of new risks cannot be provided at this time.

Key Financial Figures

• $6.50 — ectric Power Company Inc. Common Stock, $6.50 par value AEP The NASDAQ Stock Market L
• $0.01 — ($6.50 par value) AEP Texas Inc. 100 ($0.01 par value) AEP Transmission Company, L
• $15 — Service Company of Oklahoma 9,013,000 ($15 par value) Southwestern Electric Power
• $18 — hwestern Electric Power Company 3,680 ($18 par value) (a) 100% interest is held

Filing Documents

• aep-20250930.htm (10-Q) — 11014KB
• ex31aaep20253q.htm (EX-31.A) — 10KB
• ex31aaeptco20253q.htm (EX-31.A) — 10KB
• ex31aaeptexas20253q.htm (EX-31.A) — 10KB
• ex31aapco20253q.htm (EX-31.A) — 10KB
• ex31aim20253q.htm (EX-31.A) — 10KB
• ex31aopco20253q.htm (EX-31.A) — 10KB
• ex31apso20253q.htm (EX-31.A) — 10KB
• ex31aswepco20253q.htm (EX-31.A) — 10KB
• ex31baep20253q.htm (EX-31.B) — 10KB
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• ex31bpso20253q.htm (EX-31.B) — 10KB
• ex31bswepco20253q.htm (EX-31.B) — 10KB
• ex32aaep20253q.htm (EX-32.A) — 4KB
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• ex32aswepco20253q.htm (EX-32.A) — 4KB
• ex32baep20253q.htm (EX-32.B) — 4KB
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• ex32bswepco20253q.htm (EX-32.B) — 4KB
• aep-20250930_g1.jpg (GRAPHIC) — 117KB
• aep-20250930_g2.jpg (GRAPHIC) — 132KB
• 0000004904-25-000171.txt ( ) — 48302KB
• aep-20250930.xsd (EX-101.SCH) — 187KB
• aep-20250930_cal.xml (EX-101.CAL) — 157KB
• aep-20250930_def.xml (EX-101.DEF) — 1669KB
• aep-20250930_lab.xml (EX-101.LAB) — 1345KB
• aep-20250930_pre.xml (EX-101.PRE) — 2002KB
• aep-20250930_htm.xml (XML) — 11841KB

FINANCIAL INFORMATION

Part I. FINANCIAL INFORMATION Items 1, 2, 3 and 4 - Financial Statements, Management's Discussion and Analysis of Financial Condition and Results of Operations, Quantitative and Qualitative Disclosures About Market Risk and Controls and Procedures: American Electric Power Company, Inc. and Subsidiary Companies:

Management's Discussion and Analysis of Financial Condition and Results of Operations 1

Management's Discussion and Analysis of Financial Condition and Results of Operations 1 Condensed Consolidated Financial Statements 44 AEP Texas Inc. and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 50 Condensed Consolidated Financial Statements 53 AEP Transmission Company, LLC and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 59 Condensed Consolidated Financial Statements 61 Appalachian Power Company and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 66 Condensed Consolidated Financial Statements 69 Indiana Michigan Power Company and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 75 Condensed Consolidated Financial Statements 78 Ohio Power Company and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 84 Condensed Consolidated Financial Statements 87 Public Service Company of Oklahoma: Management's Narrative Discussion and Analysis of Results of Operations 92 Condensed Financial Statements 95 Southwestern Electric Power Company Consolidated: Management's Narrative Discussion and Analysis of Results of Operations 101 Condensed Consolidated Financial Statements 104 Index of Condensed Notes to Condensed Financial Statements of Registrants 110

Controls and Procedures 198

Controls and Procedures 198

OTHER INFORMATION

Part II. OTHER INFORMATION

Legal Proceedings 199

Item 1. Legal Proceedings 199

Risk Factors 199

Item 1A. Risk Factors 199

Unregistered Sales of Equity Securities and Use of Proceeds 199

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 199

Defaults Upon Senior Securities 199

Item 3. Defaults Upon Senior Securities 199

Mine Safety Disclosures 200

Item 4. Mine Safety Disclosures 200

Other Information 200

Item 5. Other Information 200

Exhibits 201

Item 6. Exhibits 201 SIGNATURE 202 This combined Form 10-Q is separately filed by American Electric Power Company, Inc., AEP Texas Inc., AEP Transmission Company, LLC, Appalachian Power Company, Indiana Michigan Power Company, Ohio Power Company, Public Service Company of Oklahoma and Southwestern Electric Power Company. Information contained herein relating to any individual registrant is filed by such registrant on its own behalf. Except for American Electric Power Company, Inc., each registrant makes no representation as to information relating to the other registrants. GLOSSARY OF TERMS When the following terms and abbreviations appear in the text of this report, they have the meanings indicated below. Term Meaning AEGCo AEP Generating Company, an AEP electric utility subsidiary. AEP American Electric Power Company, Inc., an investor-owned electric public utility holding company which includes American Electric Power Company, Inc. (Parent) and majority owned consolidated subsidiaries and consolidated affiliates. AEP Credit AEP Credit, Inc., a consolidated VIE of AEP which securitizes accounts receivable and accrued utility revenues for affiliated electric utility companies. AEP East Companies APCo, I&M, KGPCo, KPCo, OPCo and WPCo. AEP Energy Supply, LLC A nonregulated holding company for AEP's competitive generation, wholesale and retail businesses, and a wholly-owned subsidiary of AEP. AEP OnSite Partners A division of AEP Energy Supply, LLC that builds, owns, operates and maintains customer solutions utilizing existing and emerging distributed technologies. AEP Texas AEP Texas Inc., an AEP electric utility subsidiary. AEP Texas engages in the transmission and distribution of electric power to retail customers in west, central and southern Texas. AEP Transmission Holdco / AEPTHCo AEP Transmission Holding Company, LLC, a subsidiary of AEP, an intermediate holding company that owns transmission operations joint ventures and AEPTCo. AEPE

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View this 10-Q filing on SEC EDGAR