# EDGAR Filing Document

**Accession Number:** 0000081027
**File Stem:** 0000081027-23-000005
**Filing Date:** 2023-1
**Character Count:** 3974
**Document Hash:** d611ae21360386e850645d383a017283
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000081027-23-000005.hdr.sgml**: 20230103

**ACCESSION NUMBER**: 0000081027-23-000005

**CONFORMED SUBMISSION TYPE**: FWP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230103

**DATE AS OF CHANGE**: 20230103

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PUBLIC SERVICE CO OF OKLAHOMA
- **CENTRAL INDEX KEY:** 0000081027
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **IRS NUMBER:** 730410895
- **STATE OF INCORPORATION:** OK
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 333-251378
- **FILM NUMBER:** 23502938

**BUSINESS ADDRESS:**
- **STREET 1:** 1 RIVERSIDE PLAZA
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
- **BUSINESS PHONE:** 614-716-1000

**MAIL ADDRESS:**
- **STREET 1:** 1 RIVERSIDE PLAZA
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PUBLIC SERVICE CO OF OKLAHOMA
- **CENTRAL INDEX KEY:** 0000081027
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **IRS NUMBER:** 730410895
- **STATE OF INCORPORATION:** OK
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP

**BUSINESS ADDRESS:**
- **STREET 1:** 1 RIVERSIDE PLAZA
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
- **BUSINESS PHONE:** 614-716-1000

**MAIL ADDRESS:**
- **STREET 1:** 1 RIVERSIDE PLAZA
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215

Filed pursuant to Rule 433

Registration No. 333-251378

January 3, 2023

**PRICING TERM SHEET**

---

| | |
|:---|:---|
| Issuer: | Public Service Company of Oklahoma |
| Expected Ratings\*: | Baa1 (stable) by Moody's Investors Service, Inc. <br>A- (stable) by S&P Global Ratings, a division of S&P Global Inc.<br>A- (stable) by Fitch Ratings, Inc |
| Designation: | Senior Notes, Series L, due 2033 |
| Principal Amount: | $475000000 |
| Maturity: | January 15, 2033 |
| Coupon: | 5.25% |
| Interest Payment Dates: | January 15 and July 15 |
| First Interest Payment Date: | July 15, 2023 |
| Day Count Convention: | 30/360 |
| Treasury Benchmark: | 4.125% due November 15, 2032 |
| Treasury Yield: | 3.790% |
| Reoffer Spread: | T+150 basis points |
| Yield to Maturity: | 5.290% |
| Price to Public: | 99.690% of the principal amount thereof |
| Transaction Date: | January 3, 2023 |
| Settlement Date: | January 5, 2023 (T+2) |
| Redemption Terms: |  |
| &nbsp;&nbsp;&nbsp;Make-whole call: | Prior to October 15, 2032 at a discount rate of the Treasury Rate plus 25 basis points |
| &nbsp;&nbsp;&nbsp;Par call: | On or after October 15, 2032 at par |
| Minimum Denomination: | $2,000 and integral multiples of $1,000 in excess thereof |
| CUSIP/ISIN: | 744533BQ2/US744533BQ24 |
| Joint Book-Running Managers: | CIBC World Markets Corp.<br>Credit Agricole Securities (USA) Inc.<br>Truist Securities, Inc.<br>Wells Fargo Securities, LLC |
| Co-Manager: | Huntington Securities, Inc.  |

---

**\*Note:** A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

**The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by contacting CIBC World Markets Corp. toll-free at 1-800-282-0822, Credit Agricole Securities (USA) Inc. toll-free at 1-866-807-6030, Truist Securities, Inc. toll-free at 1-800-685-4786 or Wells Fargo Securities, LLC toll-free at 1-800-645-3751.**

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