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Plains All American (PAA) appoints new Chief Accounting Officer as Herbold retires

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Plains All American Pipeline, L.P. announced a planned leadership transition in its accounting function. Effective September 1, 2026, Russ Montgomery will become Vice President, Accounting and Chief Accounting Officer of the general partners of both PAA and Plains GP Holdings, L.P.

Chris Herbold, who has been Senior Vice President, Finance and Chief Accounting Officer of PAA and PAGP, will retire from the company on August 31, 2026. Montgomery, age 50, has held progressively senior accounting roles at PAA since 2002, including serving as Vice President, Controller since 2019, and earlier experience with Arthur Andersen LLP.

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Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance
Key personnel changes including departures, elections, or appointments of directors and executive officers.
Effective date of new CAO role September 1, 2026 Date Russ Montgomery becomes Vice President, Accounting and Chief Accounting Officer
Retirement date of current CAO August 31, 2026 Date Chris Herbold retires from PAA and PAGP roles
Age of incoming CAO 50 years Age of Russ Montgomery at time of announcement
Years at Arthur Andersen 4 years Prior experience of Russ Montgomery before joining PAA
Chief Accounting Officer financial
"Russ Montgomery will be promoted to the position of Vice President, Accounting and Chief Accounting Officer"
A chief accounting officer is a senior executive responsible for overseeing a company's financial records and ensuring all accounting practices are accurate and compliant with regulations. They play a key role in preparing financial reports that help investors understand the company's financial health, much like a trusted navigator guiding a ship through complex waters. Their work ensures transparency and trust in the company's financial information.
general partner financial
"Plains All American GP LLC, the general partner of PAA, and PAA GP Holdings LLC, the general partner of PAGP"
A general partner is the person or firm that runs an investment partnership and legally represents it — they make the day-to-day decisions, choose which assets to buy or sell, and are responsible for the partnership’s obligations. Investors care because the general partner’s judgment, risk-taking and fee and profit-sharing arrangements determine both the potential returns and the level of exposure to losses; think of the GP as the ship’s captain whose skill and honesty shape the voyage’s outcome.
emerging growth company regulatory
"405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company"
An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.
Form 8-K regulatory
"Plains All American Pipeline FORM 8-K Pursuant to Section 13 or 15(d)"
A Form 8-K is a report that companies file with the government to share important news quickly, such as changes in leadership, major business deals, or financial updates. It matters because it helps investors stay informed about significant events that could affect the company's value or stock price.
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false 0001070423 PLAINS ALL AMERICAN PIPELINE LP 0001070423 2026-06-01 2026-06-01 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

 

PLAINS ALL AMERICAN PIPELINE LP

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

The Securities Exchange Act of 1934

 

Date of Report (Date of earliest event reported): June 1, 2026

 

Plains All American Pipeline, L.P.

(Exact name of registrant as specified in its charter)

 

Delaware 1-14569 76-0582150
(State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

 

333 Clay Street, Suite 1600, Houston, Texas 77002

(Address of principal executive offices) (Zip Code)

 

Registrant’s telephone number, including area code: 713-646-4100

 

 

(Former name or former address, if changed since last report)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

¨Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

¨Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

¨Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

¨Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which  registered
Common Units   PAA   The Nasdaq Global Select Market

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

 

Emerging growth company  ¨

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

 

 

 

 

 

Item 5.02.Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

 

On June 1, 2026, Plains All American Pipeline, L.P. (“PAA” or the “Registrant”) and Plains GP Holdings, L.P. (“PAGP”) announced that effective September 1, 2026, Russ Montgomery will be promoted to the position of Vice President, Accounting and Chief Accounting Officer of Plains All American GP LLC, the general partner of PAA, and PAA GP Holdings LLC, the general partner of PAGP. Chris Herbold, who previously served as Senior Vice President, Finance and Chief Accounting Officer of PAA and PAGP, is retiring from the company on August 31, 2026.

 

Mr. Montgomery, age 50, has served as Vice President, Controller of PAA since 2019. He previously served as Controller from 2010 to 2019, Director of Operational Accounting from 2008 to 2010, Manager of Crude Oil Accounting from 2005 to 2008 and SEC and Financial Reporting Senior Analyst from 2002 to 2005. Prior to joining PAA in September 2002, Mr. Montgomery spent four years working for the accounting firm Arthur Andersen LLP.

 

 2 

 

 

SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

  PLAINS ALL AMERICAN PIPELINE, L.P.
     
 Date: June 2, 2026 By: PAA GP LLC, its general partner
  By: Plains AAP, L.P., its sole member
  By: Plains All American GP LLC, its general partner
  By: Plains GP Holdings, L.P., its sole member
  By: PAA GP Holdings LLC, its general partner
     
     
  By: /s/ Richard McGee
  Name: Richard McGee
  Title: Executive Vice President, General Counsel and Secretary

 

 3 

FAQ

What executive leadership change did Plains All American Pipeline (PAA) disclose?

Plains All American Pipeline disclosed a planned accounting leadership change. Russ Montgomery will become Vice President, Accounting and Chief Accounting Officer, succeeding retiring executive Chris Herbold, who has been Senior Vice President, Finance and Chief Accounting Officer for both PAA and Plains GP Holdings.

When will Russ Montgomery become Chief Accounting Officer at Plains All American Pipeline (PAA)?

Russ Montgomery will assume the Chief Accounting Officer role on September 1, 2026. The effective date follows the scheduled retirement of current Senior Vice President, Finance and Chief Accounting Officer, Chris Herbold, who is leaving the company at the end of August 2026.

When is current Chief Accounting Officer Chris Herbold retiring from Plains All American Pipeline (PAA)?

Chris Herbold is retiring from Plains All American Pipeline on August 31, 2026. He currently serves as Senior Vice President, Finance and Chief Accounting Officer for both PAA and Plains GP Holdings and will be succeeded by long-time PAA executive Russ Montgomery.

What is Russ Montgomery’s background at Plains All American Pipeline (PAA)?

Russ Montgomery has worked at Plains All American Pipeline since 2002 in various accounting roles. His positions included SEC and financial reporting analyst, crude oil accounting manager, director of operational accounting, controller, and, since 2019, Vice President, Controller before this promotion to Chief Accounting Officer.

Which entities will Russ Montgomery serve as Chief Accounting Officer for within the Plains All American structure?

Russ Montgomery will serve as Chief Accounting Officer of Plains All American GP LLC and PAA GP Holdings LLC. These entities are the general partners of Plains All American Pipeline, L.P. and Plains GP Holdings, L.P., respectively, overseeing governance and management of the partnerships.

Filing Exhibits & Attachments

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