# EDGAR Filing Document

**Accession Number:** 0001414475
**File Stem:** 0001193125-26-277722
**Filing Date:** 2026-6
**Character Count:** 6860
**Document Hash:** 51d3cd58e9eb54ba51ae0216bff71665
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-277722.hdr.sgml**: 20260622

**ACCESSION NUMBER**: 0001193125-26-277722

**CONFORMED SUBMISSION TYPE**: FWP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260622

**DATE AS OF CHANGE**: 20260622

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Western Midstream Operating, LP
- **CENTRAL INDEX KEY:** 0001414475
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS TRANSMISSION [4922]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 261075808
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 333-296931-01
- **FILM NUMBER:** 261108165

**BUSINESS ADDRESS:**
- **STREET 1:** 9950 WOODLOCH FOREST DRIVE, SUITE 2800
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77380
- **BUSINESS PHONE:** 346-786-5000

**MAIL ADDRESS:**
- **STREET 1:** 9950 WOODLOCH FOREST DRIVE, SUITE 2800
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77380

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Western Gas Partners LP
- **DATE OF NAME CHANGE:** 20071011

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Western Gas Partners
- **DATE OF NAME CHANGE:** 20071009
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Western Midstream Operating, LP
- **CENTRAL INDEX KEY:** 0001414475
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS TRANSMISSION [4922]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 261075808
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

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

**BUSINESS ADDRESS:**
- **STREET 1:** 9950 WOODLOCH FOREST DRIVE, SUITE 2800
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77380
- **BUSINESS PHONE:** 346-786-5000

**MAIL ADDRESS:**
- **STREET 1:** 9950 WOODLOCH FOREST DRIVE, SUITE 2800
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77380

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Western Gas Partners LP
- **DATE OF NAME CHANGE:** 20071011

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Western Gas Partners
- **DATE OF NAME CHANGE:** 20071009

**FREE WRITING PROSPECTUS** 

**Filed Pursuant to Rule 433** 

**Registration No. 333-296931-01** 

**June 22, 2026** 

**WESTERN MIDSTREAM OPERATING, LP** 

**(the "Partnership")** 

**Pricing Term Sheet** 

---

| | |
|:---|:---|
|  | **$700,000,000 5.700% Notes due 2036** |
| Issuer: | Western Midstream Operating, LP |
| Security Type: | Senior Unsecured Notes |
| Legal Format: | SEC Registered |
| Pricing Date: | June 22, 2026 |
| Settlement Date (T+3):\* | June 25, 2026 |
| Net Proceeds Before Expenses: | $693385000 |
| Maturity Date: | July 1, 2036 |
| Principal Amount: | $700000000 |
| Benchmark Treasury: | 4.375% due May 15, 2036 |
| Benchmark Treasury Price / Yield: | 98-30 / 4.509% |
| Spread to Benchmark Treasury: | T+123 bps |
| Yield to Maturity: | 5.739% |
| Coupon: | 5.700% |
| Public Offering Price: | 99.705% of the principal amount |

---

------

---

| | |
|:---|:---|
| Optional Redemption: | Redeemable at any time before April 1, 2036 in an amount equal to the greater of: (1) (a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 20 basis points less (b) interest accrued to the date of redemption, and (2) 100% of the principal amount of the notes to be redeemed, plus, in either case, accrued and unpaid interest thereon to the redemption date. Redeemable at any time on or after April 1, 2036 in an amount equal to the principal amount plus accrued and unpaid interest thereon to the redemption date. |
| Interest Payment Dates: | January 1 and July 1, beginning on January 1, 2027 |
| CUSIP / ISIN: | 958667 AK3 / US958667AK33 |
| Expected Ratings (Moody's / S&P / Fitch):\*\* | Baa3 / BBB- / BBB- |
| Joint Book-Running Managers: | TD Securities (USA) LLC<br> Barclays Capital Inc.<br> Citigroup Global Markets Inc.<br> MUFG Securities Americas Inc.<br> BofA Securities, Inc.<br> Mizuho Securities USA LLC<br> PNC Capital Markets LLC<br> SMBC Nikko Securities America, Inc.<br> U.S. Bancorp Investments, Inc.<br> Wells Fargo Securities, LLC<br> Deutsche Bank Securities Inc.<br> RBC Capital Markets, LLC<br> Truist Securities, Inc. |
| Co-Managers: | Comerica Securities, Inc.<br> Zions Direct, Inc. |

---

\* It is expected that delivery of the notes in this offering will be made against payment therefor by purchasers in this offering on or about June 25, 2026, which is the third business day following the pricing date of the notes (such settlement cycle being referred to as T+3). Under Rule 15c6-1 under the Exchange Act, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade the notes prior to the business day before the settlement date will be required, by virtue of the fact that the notes initially will settle in T+3, to specify an alternative settlement cycle at the time of any such trade to prevent a failed settlement. Purchasers of the notes who wish to trade the notes prior to the business day before the settlement date should consult their own advisors. 

\*\* 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 Partnership has filed a registration statement (including a prospectus) with the U.S. Securities and Exchange Commission (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 Partnership has filed with the SEC for more complete information about the Partnership and this offering. You may get these documents for free by visiting EDGAR on the SEC web site at <u>http://www.sec.gov</u>. Alternatively, the Partnership, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling: TD Securities (USA) LLC toll-free at 1-855-495-9846, Barclays Capital Inc. toll-free at 1-888-603-5847, Citigroup Global Markets Inc. toll-free at 1-800-831-9146, and MUFG Securities Americas Inc. toll-free at 1-877-649-6848.

This Term Sheet is qualified in its entirety by reference to the related preliminary prospectus supplement dated June 22, 2026 (the "Preliminary Prospectus Supplement"). The information in this Term Sheet supplements the Preliminary Prospectus Supplement and supersedes the information in the Preliminary Prospectus Supplement to the extent inconsistent with the information in the Preliminary Prospectus Supplement.