Form 8-K

8-K — PAR PACIFIC HOLDINGS, INC.

Accession: 0001437749-26-031335

Filed: 2026-09-28

Period: 2026-09-28

CIK: 0000821483

SIC: 1311 (CRUDE PETROLEUM & NATURAL GAS)

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

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — parr20260928_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (ex_1020279_source.htm)

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0000821483

2026-09-28

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): September 28, 2026

Par Pacific Holdings, Inc.

(Exact name of registrant as specified in its charter)

Delaware

1-36550

84-1060803

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

825 Town & Country Lane, Suite 1500

Houston, Texas

77024

(Address of principal executive offices)

(Zip Code)

(281) 899-4800

(Registrant’s telephone number, including area code)

(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 (see General Instruction A.2. below):

☐

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 stock, $0.01 par value

PARR

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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.

Retirement of Richard Creamer as Executive Vice President – Refining and Logistics

On September 28, 2026, Par Pacific Holdings, Inc. (the “Company” or “Par Pacific”) announced that Richard Creamer plans to retire from the Company effective on or about April 1, 2027. From September 28, 2026, until his retirement date, Mr. Creamer will serve as Senior Advisor to the Company.

Item 8.01

Other Events

Appointment of Jerry Stumbo as Executive Vice President – Refining and Logistics

On September 28, 2026, the Board of Directors of Par Pacific appointed Jerry Stumbo to become the Company’s Executive Vice President – Refining and Logistics

Mr. Stumbo, age 55, formerly served as the Vice President and General Manager of the Valero Port Arthur Refinery. Prior to that, he served as Valero’s Vice President and Plant Manager at the St. Charles, Louisiana refinery. Mr. Stumbo graduated from Oklahoma State University with a bachelor’s degree in chemical engineering and psychology.

On September 28, 2026, the Company issued a news release announcing the officer transition plans. The news release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

In accordance with General Instruction B.2 of Form 8-K, the foregoing information, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information and Exhibits be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01

Exhibits

99.1

News Release dated September 28, 2026

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

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.

Date: September 28, 2026

PAR PACIFIC HOLDINGS, INC.

By:

/s/ Jeffrey R. Hollis

Jeffrey R. Hollis

Senior Vice President and General Counsel

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: ex_1020279_source.htm · Sequence: 2

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Exhibit 99.1

Par Pacific Appoints Jerry Stumbo Executive Vice President, Refining and Logistics

Richard Creamer to Retire in April 2027; Will Serve as Senior Advisor Through the Transition

HOUSTON, September 28, 2026 – Par Pacific Holdings, Inc. (NYSE and NYSE Texas: PARR) (“Par Pacific” or the “Company”) today announced that Jerry Stumbo has joined the Company as Executive Vice President, Refining and Logistics, effective September 28, 2026. Stumbo succeeds Richard Creamer, who will serve as Senior Advisor until his planned retirement on April 1, 2027.

“Richard has been instrumental in building the refining and logistics organization we have today,” said William Monteleone, President and Chief Executive Officer of Par Pacific. “His deep refining expertise, thoughtful and direct leadership, and commitment to our employees shaped our culture and drove the performance and growth of our refining system, including the acquisition and integration of Par Montana. We are fortunate to have his counsel through the transition, and we are grateful for his contributions to Par Pacific and our success.”

Monteleone continued, “Jerry is a proven refining leader with nearly three decades of operating experience and a record of improving safety, reliability, environmental performance, and financial results. He is a visible, field-oriented leader who builds trust and accountability, which is exactly what this next chapter requires. We have a strong platform and real opportunity to continue to improve our reliability, efficiency, and commercial execution, and Jerry is the right leader to help us capture it.”

Stumbo joins Par Pacific from Valero Energy, where he most recently served as Vice President and General Manager of the Port Arthur, Texas Refinery. He led Valero’s largest refinery and one of North America’s most complex refining facilities, with approximately 435,000 barrels per day of throughput capacity and 850 employees.

Stumbo previously led Valero’s St. Charles, Louisiana Refinery for seven years. During his tenure, the refinery earned Valero’s Chairman’s Safety Award four times. He also led the organization through Hurricane Ida and the COVID-19 pandemic and completed major capital investments, including the expansion of the Diamond Green Diesel renewable fuels facility. Earlier in his career, Stumbo held operations leadership roles at Valero’s Benicia, California Refinery and the Phillips 66 Santa Maria, California Refinery, following engineering and operations roles with ConocoPhillips at its San Francisco, California Refinery and Ponca City, Oklahoma Technology Center. Stumbo holds bachelor’s degrees in chemical engineering and psychology from Oklahoma State University.

“Par Pacific operates in markets where execution matters, and this team has built a differentiated refining and logistics system,” said Stumbo. “I have spent my career in the field, alongside the people who run these assets safely and reliably every day. Richard and his team have built something strong here, and I am looking forward to building on the team’s success.”

About Par Pacific

Par Pacific Holdings, Inc. (NYSE and NYSE Texas: PARR), headquartered in Houston, Texas, is a growing energy company providing both renewable and conventional fuels to the western United States. Par Pacific owns and operates 219,000 bpd of combined refining capacity across four locations in Hawaii, the Pacific Northwest and the Rockies, and an extensive energy infrastructure network, including 13 million barrels of storage and marine, rail, rack, and pipeline assets. In addition, Par Pacific operates the Hele retail brand in Hawaii and the “nomnom” convenience store chain in the Pacific Northwest. More information is available at www.parpacific.com.

Forward-Looking Statements

This news release includes certain “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, which are intended to qualify for the “safe harbor” from liability established by the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact are forward-looking statements. Forward-looking statements include, without limitation, statements about the leadership transition described in this news release.

Forward-looking statements are subject to certain risks, trends and uncertainties, such as the risks and uncertainties detailed in the Company’s Annual Report on Form 10-K, Quarterly Reports

on Form 10-Q and other documents that the Company files with the Securities and Exchange Commission. The Company cannot provide assurances that the assumptions upon which these forward-looking statements are based will prove to have been correct. Should any of these risks materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those expressed or implied in any forward-looking statements, and investors are cautioned not to place undue reliance on these forward-looking statements, which are current only as of the date of this news release. Except as required by applicable law, the Company does not intend to update or revise any forward-looking statements made herein or any other forward-looking statements as a result of new information, future events or otherwise.

Investor Contact

Ashimi Patel Vitter

VP, Investor Relations & Sustainability (832) 916-3355

apatel@parpacific.com

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