PNRG / PrimeEnergy Resources Corporation - Depositi SEC, Relazione annuale, dichiarazione di delega

PrimeEnergy Resources Corporation
US ˙ NasdaqCM ˙ US74158E1047

Statistiche di base
LEI 9QMD37QNHRX1B7685Y44
CIK 56868
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to PrimeEnergy Resources Corporation
SEC Filings (Chronological Order)
Questa pagina fornisce un elenco completo e cronologico dei depositi SEC, esclusi i documenti di proprietà che forniamo altrove.
August 19, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2025 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEnergy Resources Cor

August 15, 2025 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: June 30, 2025 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Report on Form N-SAR For t

July 1, 2025 EX-16.1

June 30, 2025

EXHIBIT 16.1 June 30, 2025 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have been furnished with a copy of the response to Item 4.01 of Form 8-K for the event that occurred on June 27, 2025, to be filed by our former client, PrimeEnergy Resources Corporation. We agree with the statements made in response to that Item insofar as they relate to our Fir

July 1, 2025 8-K

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 27, 2025 PrimeEnergy Resources

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 27, 2025 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 0-7406 84-0637348 (Commiss

June 5, 2025 8-K

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 5, 2025 PrimeEnergy Resources

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 5, 2025 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Commissi

May 19, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2025 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEnergy Resources Co

May 16, 2025 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: March 31, 2025 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Report on Form N-SAR For t

April 21, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.__)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a

April 15, 2025 EX-10.2264

FOURTH AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT, dated as of December 20, 2024, among PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation (the “Borrower”), CITIBANK, N.A., as administrative agent (in such capacity, the “Administrative Agent”), each Guarantor party hereto, the Existing Lenders (filed as exhibit 10.22.6.4 of PrimeEnergy Resources Form 10-K for the year ended December 2024, and incorporated by reference)

Exhibit 10.22.6.4 FOURTH AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT This FOURTH AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), dated as of December 20, 2024 (the “Fourth Amendment Effective Date”), is among PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation (the “Borrower”), CITIBANK, N.A., as administrative agent (in such capacity, the “Adminis

April 15, 2025 EX-19.1

Insider Trading Policy (filed as exhibit 19.1 of PrimeEnergy Resources Form 10-K for the year ended December 2024, and incorporated by reference)

EXHIBIT 19.1 PRIMEENERGY RESOURCES CORPORATION INSIDER TRADING POLICY March 18, 2025 I. INTRODUCTION Federal and state laws prohibit buying, selling or making other transfers of securities by persons who have material information that is not generally known or available to the public. These laws also prohibit persons with such material nonpublic information (“MNPI”) from disclosing this informatio

April 15, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to . is Commission File Number 0-7406 PrimeEnergy R

April 15, 2025 EX-99.1

Summary Reserve Report dated February 14, 2025, of Ryder Scott Company, L.P. (filed herewith).

EXHIBIT 99.1 PrimeEnergy Resources Corporation Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2024 /s/ Clark D. Parrott Clark D. Parrott, P.E. Colorado License No. 35262 Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT COMPANY PETROLEUM CONSULTANTS TBPELS REGISTERED ENGINE

April 15, 2025 EX-21

Subsidiaries (filed herewith).

Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Resources Corporation.

April 1, 2025 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: December 31, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Report on Form N-SAR F

November 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEnergy Resource

August 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEnergy Resources Cor

August 1, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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) July 29, 2024 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Commiss

August 1, 2024 EX-10.2263

THIRD AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT, dated as of July 29, 2024, among PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation (the “Borrower”), CITIBANK, N.A., as administrative agent (in such capacity, the “Administrative Agent”), each Guarantor party hereto, the Existing Lenders and the New Lender and incorporated by reference.

Exhibit 10.22.6.3 THIRD AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT This THIRD AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), dated as of July 29, 2024 (the “Third Amendment Effective Date”), is among PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation (the “Borrower”), CITIBANK, N.A., as administrative agent (in such capacity, the “Administrative

June 6, 2024 8-K

Submission of Matters to a Vote of Security Holders

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 5, 2024 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Commissi

May 29, 2024 SC 13G

LSEA / Landsea Homes Corporation / CHEN HUAIJUN - SCHEDULE 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G INFORMATION STATEMENT PURSUANT TO RULES 13d-1 AND 13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 Landsea Homes Corp.

May 17, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2024 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEnergy Resources Co

May 16, 2024 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: March 31, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Report on Form N-SAR For

April 19, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defi

April 15, 2024 EX-21

Subsidiaries (filed herewith).

Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Resources Corporation.

April 15, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to . is Commission File Number 0-7406 PrimeEnergy R

April 15, 2024 EX-97.1

PrimeEnergy Resources Corporation Compensation Recoupment (CLAWBACK) Policy, filed as exhibit 97.1 of PrimeEnergy Resources Corporation Form 10-K for the Year Ended December 31, 2023, and incorporated by reference).

Exhibit No. 97.1 PrimeEnergy Resources Corporation COMPENSATION RECOUPMENT (CLAWBACK) POLICY Recoupment of Incentive-Based Compensation It is the policy of PrimeEnergy Resources Corporation (the “Company”) that, in the event the Company is required to prepare an accounting restatement of the Company’s financial statements due to the Company’s material non-compliance with any financial reporting re

April 15, 2024 EX-4.1

PrimeEnergy Resources Corporation Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934, (filed as exhibit 4.1 of PrimeEnergy Resources Corporation Form 10-K for the year Ended December 31, 2023, and incorporated by reference).

Exhibit 4.1 PRIMEENERGY RESOURCES CORPORATION DESCRIPTION OF SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The common stock of PrimeEnergy Resources Corporation (“we,” “us” and “our”) is listed and principally traded on the Nasdaq Stock Market (“Nasdaq”) under the ticker symbol “PNRG.” Our authorized capital stock consists of 2,810,000 shares of common stock,

April 15, 2024 EX-99.1

Summary Reserve Report dated March 7, 2023, of Ryder Scott Company, L.P. (filed herewith).

Exhibit 99.1 PrimeEnergy Resources Corporation Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2023 /s/ Clark D. Parrott Clark D. Parrott, P.E. Colorado License No. 35262 Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 TBPELS REGISTERED ENGINEERING FIRM F-1580 633 17TH STREET SUITE 17

April 2, 2024 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: December 31, 2023 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Report on Form N-SAR For the Trans

March 19, 2024 SC 13D/A

PNRG / PrimeEnergy Resources Corporation / DE ROTHSCHILD ROBERT - AMENDMENT NO. 9 TO SCHEDULE 13D Activist Investment

SC 13D/A 1 sch13d.htm AMENDMENT NO. 9 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 9 TO SCHEDULE 13D Under the Securities Exchange Act of 1934 PrimeEnergy Resources Corporation (Name of Issuer) Common Stock (par value $.10 per share) (Title of Class of Securities) 74158E104 (CUSIP Number) Robert de Rothschild Amrace Inc. 130 E. 63rd Street,

February 14, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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) February 9, 2024 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Comm

February 14, 2024 EX-10.2262

Second Amendment to Fourth Amended and Restated Credit Agreement, dated as of February 9, 2024, among PrimeEnergy Resources Corporation, Citibank, N.A., as administrative agent, the guarantors and the lenders party thereto (filed as exhibit 10.22.6.2) of PrimeEnergy Resources Corporation Form 8-K on February 13, 2024, and incorporated by reference.

EXHIBIT 10.22.6.2 SECOND AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT This SECOND AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”), dated as of February 9, 2024 (the “Second Amendment Effective Date”), is among PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation (the “Borrower”), CITIBANK, N.A., as administrative agent (in such capacity, the “Administ

February 5, 2024 SC 13D/A

PNRG / PrimeEnergy Resources Corporation / HURT CLINT - SCHEDULE 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Amendment No. 3) Under the Securities Exchange Act of 1934 PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, $0.10 par value (Title of Class of Securities) 74158E104 (CUSIP Number) CLINT HURT 1701 ILLINOIS STREET MIDLAND, TX 79701 (432-638-6381) (Name, Address and Telephone Number of Person Authori

February 1, 2024 EX-99.2

Voting Agreement, dated June 3, 2023, between Gifford Fong and Timothy Fong

Exhibit 99.2 Voting Agreement This voting agreement is entered into as of June 3rd, 2023, by and between Timothy Fong and Gifford Fong. Whereas: Timothy Fong is the record and beneficial owner of 18758 shares of common stock, par value $.10 per share (the "PrimeEnergy shares") of PrimeEnergy Resources Corporation, a Delaware corporation ("PrimeEnergy); and Timothy Fong wishes to give to Gifford Fo

February 1, 2024 SC 13D

PNRG / PrimeEnergy Resources Corporation / FONG GIFFORD - SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, $0.10 par value (Title of Class of Securities) 74158E104 (CUSIP Number) Gifford Fong 3658 Mt. Diablo Boulevard, Suite 200 Lafayette, CA 94549 925-299-7800 (Name, Address and Telephone Number of Person Authori

February 1, 2024 EX-99.1

Voting Agreement, dated June 3, 2023, between Gifford Fong and Steven Fong

Exhibit 99.1 Voting Agreement This voting agreement is entered into as of June 3rd, 2023, by and between Steven Fong and Gifford Fong. Whereas: Steven Fong is the record and beneficial owner of 38,994 shares of common stock, par value $.10 per share (the "PrimeEnergy shares") of PrimeEnergy Resources Corporation, a Delaware corporation ("PrimeEnergy); and Steven Fong wishes to give to Gifford Fong

January 25, 2024 SC 13D/A

PNRG / PrimeEnergy Resources Corporation / SMEETS JAN K - SCHEDULE 13D/A Activist Investment

SC 13D/A 1 jks20240125sc13da.htm SCHEDULE 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Amendment No. 3) Under the Securities Exchange Act of 1934 PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, $0.10 par value (Title of Class of Securities) 74158E104 (CUSIP Number) Jan K. Smeets 48 Country Road Mamaroneck, NY 10543 914-391-1280 (Name,

January 25, 2024 SC 13D/A

PNRG / PrimeEnergy Resources Corporation / DRIMAL CHARLES E JR - SCHEDULE 13D/A Activist Investment

SC 13D/A 1 ced20240125sc13da.htm SCHEDULE 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Amendment No. 8) Under the Securities Exchange Act of 1934 PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, $0.10 par value (Title of Class of Securities) 74158E104 (CUSIP Number) Charles E. Drimal, Jr. 9821 Katy Freeway Houston, Texas 77024 (Name, A

January 18, 2024 SC 13D/A

PNRG / PrimeEnergy Resources Corporation / DE ROTHSCHILD ROBERT - SCHEDULE 13D AMENDMENT NO. 8 Activist Investment

SC 13D/A 1 13da8.htm SCHEDULE 13D AMENDMENT NO. 8 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 8 TO SCHEDULE 13D Under the Securities Exchange Act of 1934 PrimeEnergy Resources Corporation (Name of Issuer) Common Stock (par value $.10 per share) (Title of Class of Securities) 74158E104 (CUSIP Number) Robert de Rothschild Amrace Inc. 130 E. 63rd Street, 14th

January 8, 2024 SC 13G/A

PNRG / PrimeEnergy Resources Corporation / WEHRLE GAINES - SC 13G/A Passive Investment

SC 13G/A 1 pnrgsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5 )* PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, par value $0.10 (per share) (Title of Class of Securities) 74158E104 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statem

November 17, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2023 Or ☐ TRANSITION REPORT PURSU

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 Pr

November 15, 2023 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: September 30, 2023 ☐ Transition Rep

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: September 30, 2023 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Report on For

August 15, 2023 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: June 30, 2023 ☐ Transition Report o

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For: June 30, 2023 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Report on Form N-S

August 15, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2023 Or ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEn

June 8, 2023 8-K

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 7, 2023 PrimeEnergy Resources

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 7, 2023 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Commissi

May 22, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2023 Or ☐ TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2023 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeE

May 16, 2023 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 31, 2023 ☐ Trans

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 31, 2023 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Report on Fo

April 24, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 18, 2023 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Or ☐ TRANSITION REPORT P

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to . is Commission File Number 0-7406 PrimeEnergy

April 17, 2023 EX-10.22(6)(1)

FIRST AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT, dated as of October 31, 2022 (the “First Amendment Effective Date”), is among PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation (the “Borrower”), CITIBANK, N.A., as administrative agent (in such capacity, the “Administrative Agent”) and as Issuing Bank, each Guarantor party hereto and the financial institutions party hereto as Lenders and incorporated by reference.

EX-10.22.6.1 EXHIBIT 10.22.6.1 FIRST AMENDMENT TO FOURTH AMENDED AND RESTATED CREDIT AGREEMENT This First Amendment to Fourth Amended And Restated Credit Agreement (this “Amendment”) dated as of October 31, 2022 (the “First Amendment Effective Date”), is among PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation (the “Borrower”), CITIBANK, N.A., as administrative agent (in such capacity, the

April 17, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Or ☐ TRANSITION REPORT PUR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to . is Commission File Number 0-

April 17, 2023 EX-99.1

Summary Reserve Report dated March 7, 2023, of Ryder Scott Company, L.P. (filed herewith).

EX-99.1 Exhibit 99.1 PrimeEnergy Resources Corporation Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2022 /s/ Stephen E. Gardner Stephen E. Gardner, P.E. Colorado License No. 44720 Managing Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT COMPANY PETROLEUM CONSULTA

April 17, 2023 EX-21

Subsidiaries (filed herewith).

EX-21 Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Resources Corporation.

April 3, 2023 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2022 ☐ Tr

NT 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2022 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition R

January 18, 2023 SC 13G/A

PNRG / PrimeEnergy Corp. / WEHRLE GAINES - SC 13G/A Passive Investment

SC 13G/A 1 pnrgsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, par value $0.10 (per share) (Title of Class of Securities) 74158E104 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Stateme

November 21, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SEC

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2022 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEnergy

November 15, 2022 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For the Period Ended: September 30, 2022

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For the Period Ended: September 30, 2022 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transit

August 19, 2022 EX-10.22.6

FOURTH AMENDED AND RESTATED CREDIT AGREEMENT dated as of July 5, 2022, is among PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation (the “Borrower”), each of the Lenders from time to time party hereto and CITIBANK, N.A. (in its individual capacity, “Citibank”), as administrative agent for the Lenders (in such capacity, together with its successors in such capacity, the “Administrative Agent”) (filed as exhibit 10.22.6 of PrimeEnergy Resources Corporation Form 10-Q for the Quarter Ended June 30 2022, and incorporated by reference).

Exhibit 10.22.6 FOURTH AMENDED AND RESTATED CREDIT AGREEMENT dated as of July 5, 2022 among PRIMEENERGY RESOURCES CORPORATION, as Borrower, CITIBANK, N.A., as Administrative Agent, and THE LENDERS PARTY HERETO CITIBANK, N.A. Sole Lead Arranger and Sole Book Runner ARTICLE I DEFINITIONS AND ACCOUNTING MATTERS 6 Section 1.01 Terms Defined Above 6 Section 1.02 Certain Defined Terms 6 Section 1.03 Typ

August 19, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2022 Or ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2022 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEn

August 16, 2022 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For the Period Ended: June 30, 2022 ☐ Tr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For the Period Ended: June 30, 2022 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report on

June 13, 2022 8-K

Submission of Matters to a Vote of Security Holders

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 8, 2022 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Commissi

May 20, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2022 Or ☐ TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2022 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeE

May 17, 2022 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For the Period Ended: March 31, 2022 ☐ T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For the Period Ended: March 31, 2022 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report o

April 27, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

April 21, 2022 EX-99.1

Summary Reserve Report dated March 3, 2022, of Ryder Scott Company, L.P. (filed herewith).

EXHIBIT 99.1 PrimeEnergy Resources Corporation Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2021 /s/ Stephen G. Gardner Stephen E. Gardner, P.E. Colorado License No. 44720 Managing Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT COMPANY PETROLEUM CONSULTANTS TBPE

April 21, 2022 EX-21

Subsidiaries (filed herewith).

Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Resources Corporation.

April 21, 2022 EX-10.22.5.14.2

THIS SECOND AMENDMENT TO AMENDED, RESTATED AND CONSOLIDATED MORTGAGE OF OIL AND GAS PROPERTY, SECURITY AGREEMENT, ASSIGNMENT OF PRODUCTION AND FINANCING STATEMENT (this “Amendment”) is made and entered into as of December 20, 2021, between PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation, formerly known as PrimeEnergy Corporation (“Prime”) and PRIMEENERGY MANAGEMENT CORPORATION, a New York corporation (“PEMC,” and Prime and PEMC herein, individually and collectively, “Mortgagor”), and CITIBANK, N.A., as Administrative Agent for the benefit of the Secured Parties (in such capacity and together with its successors and assigns in such capacity, “Mortgagee”).

Exhibit 10.22.5.14.2 After recording, return to: Winstead PC 2728 N. Harwood St., Suite 500 Dallas, Texas 75201 Attn: Bee Archaphorn Canadian County, Oklahoma Garvin County, Oklahoma Grady County, Oklahoma SECOND AMENDMENT TO AMENDED, RESTATED AND CONSOLIDATED MORTGAGE OF OIL AND GAS PROPERTY, SECURITY AGREEMENT, ASSIGNMENT OF PRODUCTION AND FINANCING STATEMENT KNOW ALL MEN BY THESE PRESENTS: THIS

April 21, 2022 EX-10.22.5.14.1

FIRST AMENDMENT TO DEED OF TRUST, MORTGAGE, SECURITY AGREEMENT, ASSIGNMENT OF PRODUCTION AND FINANCING STATEMENT (this “Amendment”) is made and entered into as of December 20, 2021, by PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation, formerly known as PrimeEnergy Corporation (“Prime”) and PRIMEENERGY MANAGEMENT CORPORATION, a New York corporation (“PEMC,” and Prime and PEMC herein, individually and collectively, “Grantor”), and CITIBANK, N.A., as Administrative Agent for the benefit of the Secured Parties (in such capacity and together with its successors and assigns in such capacity, “Beneficiary”)

EXHIBIT 10.22.5.14.1 After recording, return to: Winstead PC 2728 N. Harwood St., Suite 500 Dallas, Texas 75201 Attn: Bee Archaphorn Caddo County, Oklahoma Lincoln County, Oklahoma Comanche County, Oklahoma Logan County, Oklahoma Dewey County, Oklahoma Major County, Oklahoma Garfield County, Oklahoma Noble County, Oklahoma Grant County, Oklahoma Roger Mills County, Oklahoma Harper County, Oklahoma

April 21, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 Or ☐ TRANSITION REPORT PUR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to . is Commission File Number 0-

April 21, 2022 EX-10.22.5.10.7

SEVENTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of December 20, 2021 among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE GUARANTORS PARTY HERETO, THE LENDERS PARTY HERETO, CITIBANK, N.A., as Administrative Agent, and CITIBANK, N.A., as Sole Lead Arranger and Sole Book Runner (filed herewith).

EXHIBIT 10.22.5.10.7 SEVENTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of December 20, 2021 among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE GUARANTORS PARTY HERETO, THE LENDERS PARTY HERETO, CITIBANK, N.A., as Administrative Agent, and CITIBANK, N.A., as Sole Lead Arranger and Sole Book Runner SEVENTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT THIS S

April 21, 2022 EX-10.22.5.13.1

THIS FIRST AMENDMENT TO AMENDED, RESTATED AND CONSOLIDATED DEED OF TRUST, MORTGAGE, SECURITY AGREEMENT, ASSIGNMENT OF PRODUCTION AND FINANCING STATEMENT (this “Amendment”) is made and entered into as of December 20, 2021, by PRIMEENERGY RESOURCES CORPORATION, a Delaware corporation, formerly known as PrimeEnergy Corporation (“Prime”) and PRIMEENERGY MANAGEMENT CORPORATION, a New York corporation (“PEMC,” and Prime and PEMC herein, individually and collectively, “Grantor”), and CITIBANK, N.A., as Administrative Agent for the benefit of the Secured Parties (in such capacity and together with its successors and assigns in such capacity, “Beneficiary”).

Exhibit 10.22.5.13.1 After recording, return to: Winstead PC 2728 N. Harwood St., Suite 500 Dallas, Texas 75201 Attn: Bee Archaphorn NOTICE OF CONFIDENTIALITY RIGHTS: IF YOU ARE A NATURAL PERSON, YOU MAY REMOVE OR STRIKE ANY OR ALL OF THE FOLLOWING INFORMATION FROM ANY INSTRUMENT THAT TRANSFERS AN INTEREST IN REAL PROPERTY BEFORE IT IS FILED FOR RECORD IN THE PUBLIC RECORDS: YOUR SOCIAL SECURITY N

April 1, 2022 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2021 ☐ Tr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: December 31, 2021 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report on

January 11, 2022 SC 13G/A

PNRG / PrimeEnergy Corp. / WEHRLE GAINES - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, par value $0.10 (per share) (Title of Class of Securities) 74158E104 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

November 19, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2021 Or ☐ TRANSITION REPORT PURSU

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 Pr

November 16, 2021 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: September 30, 2021 ☐ T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: September 30, 2021 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report o

August 23, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2021 Or ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEn

August 17, 2021 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: June 30, 2021 ☐ Transi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: June 30, 2021 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report on For

June 10, 2021 8-K

Submission of Matters to a Vote of Security Holders

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 9, 2021 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Commissi

May 18, 2021 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 31, 2021 ☐ Trans

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: March 31, 2021 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report on Fo

May 18, 2021 SC 13G/A

United States Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, par value $0.10 (per share) (Title of C

SC 13G/A United States Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, par value $0.10 (per share) (Title of Class of Securities) 74158E104 (CUSIP Number) December 31, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate

May 18, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2021 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEnergy Resources Co

April 29, 2021 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

April 26, 2021 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to . is Commission File Number 0-

April 26, 2021 EX-21

Subsidiaries (filed herewith).

Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Resources Corporation.

April 26, 2021 EX-99.1

Summary Reserve Report dated March 23, 2020, of Ryder Scott Company, L.P. (filed herewith).

Exhibit 99.1 PrimeEnergy Resources Corporation Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2020 /s/ Stephen G. Gardner Stephen E. Gardner, P.E. Colorado License No. 44720 Managing Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPE Firm Registration No. F-1580 TBPE REGISTERED ENGINEERING FIRM F-1580 633 17TH

April 1, 2021 NT 10-K

- NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One): ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: December 31, 2020 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Report o

February 16, 2021 EX-10.22.5.10.6

SIXTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of FEBRUARY 11, 2021, among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE GUARANTORS PARTY HERETO, THE LENDERS PARTY, HERETO, BBVA USA, as Administrative Agent and BBVA USA, as Sole Lead Arranger and Sole Book Runner (Incorporated by reference to Exhibit 10.22.5.10.6 to PrimeEnergy Resources Corporation Form 8-K dated February 16, 2021).

EXHIBIT 10.22.5.10.6 SIXTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of February 11, 2021 among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE GUARANTORS PARTY HERETO, THE LENDERS PARTY HERETO, BBVA USA, as Administrative Agent, and BBVA USA, as Sole Lead Arranger and Sole Book Runner SIXTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT THIS SIXTH AMENDMENT T

February 16, 2021 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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) February 11, 2021 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Com

November 25, 2020 EX-10.22.5.10.5

FIFTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of September 4, 2020, among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE LENDERS PARTY HERETO, BBVA USA (f/k/a COMPASS BANK,) as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA USA, as Sole Lead Arranger and Sole Book Runner (Incorporated by reference to 10.22.5.10.5 to PrimeEnergy Resources Corporation Form 10-Q for the quarter ended September 30, 2020).

EX-10.22.5.10.5 Exhibit 10.22.5.5 FIFTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of [], 2020 among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE LENDERS PARTY HERETO, BBVA USA (f/k/a COMPASS BANK), as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA USA, as Sole Lead Arranger and Sole Book Runner FIFTH AMENDMENT TO THIRD

November 25, 2020 EX-10.22.5.10.4

FOURTH AMENDMENT TO THE THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of May 8, 2020 among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE LENDERS PARTY HERETO, BBVA USA (f/k/a COMPASS BANK), as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA USA, as Sole Lead Arranger and Sole Book Runner (Incorporated by reference to 10.22.5.10.4 to PrimeEnergy Resources Corporation Form 10-Q for the quarter ended September 30, 2020).

EX-10.22.5.10.4 Exhibit 10.22.5.4 FOURTH AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of May [], 2020 among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE LENDERS PARTY HERETO, BBVA USA (f/k/a COMPASS BANK), as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA USA, as Sole Lead Arranger and Sole Book Runner FOURTH AMENDMENT TO

November 25, 2020 10-Q

Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 16, 2020 NT 10-Q

- NT 10-Q

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: September 30, 2020 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition

August 20, 2020 10-Q/A

Quarterly Report - 10-Q/A

10-Q/A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 19, 2020 10-Q

Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 14, 2020 NT 10-Q

- NT 10-Q

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: June 30, 2020 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Repor

June 30, 2020 10-Q

Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 26, 2020 8-K

Submission of Matters to a Vote of Security Holders

8-K 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 23, 2020 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-063738 (Com

May 15, 2020 DEF 14A

- DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 13, 2020 10-K/A

Annual Report - 10-K/A

10-K/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to . is Commission File Number 0-7406 Prim

May 8, 2020 8-K

Other Events

8-K 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) May 4, 2020 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Comm

May 6, 2020 EX-21

Subsidiaries (filed herewith).

EX-21 Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Resources Corporation.

May 6, 2020 EX-99.1

Summary Reserve Report dated January 28, 2019, of Ryder Scott Company, L.P. (filed herewith).

EX-99.1 Exhibit 99.1 PrimeEnergy Resources Corporation Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2019 /s/ Stephen E. Gardner Stephen E. Gardner, P.E. Colorado License No. 44720 Managing Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPE Firm Registration No. F-1580 RYDER SCOTT COMPANY PETROLEUM CONSULTANT

May 6, 2020 10-K

Annual Report - 10-K

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 5, 2020 PRE 14A

- PRE 14A

PRE 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 27, 2020 EX-3.2

Bylaws of PrimeEnergy Resources Corporation as amended and restated as of April 24, 2020 (filed as Exhibit 3.2 of PrimeEnergy Resources Corporation Form 8-K on April 27, 2020 and incorporated herein by reference).

EX-3.2 EXHIBIT 3.2 AMENDED AND RESTATED BYLAWS OF PRIMEENERGY RESOURCES CORPORATION A Delaware Corporation Effective April 24, 2020 TABLE OF CONTENTS Page ARTICLE I OFFICES Section 1. Registered Office 1 Section 2. Other Offices 1 ARTICLE II MEETINGS OF STOCKHOLDERS Section 1. Place of Meetings 1 Section 2. Annual Meetings 2 Section 3. Special Meetings 2 Section 4. Notice 2 Section 5. Adjournments

April 27, 2020 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

8-K 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): April 24, 2020 PrimeEnergy Resources Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 0-7406 84-0637348 (State or Other Jurisdiction of Incorporation) (

April 16, 2020 SC 13G/A

PNRG / PrimeEnergy Corp. / WEHRLE GAINES - SC 13G/A Passive Investment

SC 13G/A United States Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* PrimeEnergy Resources Corporation (Name of Issuer) Common Stock, par value $0.10 (per share) (Title of Class of Securities) 74158E104 (CUSIP Number) March 16, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box

March 27, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events

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): March 24, 2020 PrimeEnergy Resources Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 0-7406 84-0637348 (State or Other Jurisdiction of Incorporation) (Comm

March 20, 2020 8-K

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

8-K 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) March 16, 2020 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware 0-7406 11-2695037 (State or Other Jurisdiction of Incorporation) (Co

March 19, 2020 8-K

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

8-K 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) March 16, 2020 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Co

November 7, 2019 10-Q

PNRG / PrimeEnergy Corp. 10-Q - Quarterly Report - FORM 10-Q

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 14, 2019 10-Q

PNRG / PrimeEnergy Corp. 10-Q - Quarterly Report - FORM 10-Q

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 10, 2019 EX-99.1

PrimeEnergy Resources Corporation

EX-99.1 EXHIBIT 99.1 PrimeEnergy Resources Corporation Business Wire 40 East 52nd Street, 19th Floor New York, NY 10022 PrimeEnergy Resources Corporation set to join Russell 3000® Index June 10, 2019 – PrimeEnergy Resources Corporation is set to join the broad-market Russell 3000® Index at the conclusion of the 2019 Russell indexes annual reconstitution, effective after the US market opens on July

June 10, 2019 8-K

Financial Statements and Exhibits, Other Events

8-K 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 10, 2019 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Com

June 10, 2019 8-K

Submission of Matters to a Vote of Security Holders

8-K 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 10, 2019 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Co

May 20, 2019 10-Q

PNRG / PrimeEnergy Corp. 10-Q - Quarterly Report - FORM 10-Q

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 15, 2019 NT 10-Q

PNRG / PrimeEnergy Corp. NT 10-Q NT 10-Q

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 31, 2019 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Repo

April 23, 2019 DEF 14A

PNRG / PrimeEnergy Corp. DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 17, 2019 10-K/A

PNRG / PrimeEnergy Corp. 10-K/A (Annual Report)

10-K/A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 16, 2019 EX-10.22.5.10.3

THIRD AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of January 8, 2019, among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE LENDERS PARTY HERETO, COMPASS BANK, as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA COMPASS, as Sole Lead Arranger and Sole Book Runner (Incorporated by reference to Exhibit 10.22.5.10.3 to PrimeEnergy Resources Corporation Form 10-K for the year ended December 31, 2018).

EX-10.22.5.10.3 Exhibit 10.22.5.10.3 Execution Version THIRD AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of December 27, 2018 among PRIMEENERGY RESOURCES CORPORATION, as Borrower, THE LENDERS PARTY HERETO, COMPASS BANK, as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA COMPASS, as Sole Lead Arranger and Sole Book Runner THIRD AM

April 16, 2019 EX-99.1

Summary Reserve Report dated January 28, 2019, of Ryder Scott Company, L.P. (filed herewith).

EX-99.1 Exhibit 99.1 FAX (303) 623-4258 TBPE REGISTERED ENGINEERING FIRM F-1580 621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147

April 16, 2019 EX-21

Subsidiaries (filed herewith).

EX-21 Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Resources Corporation.

April 16, 2019 10-K

PNRG / PrimeEnergy Corp. 10-K (Annual Report)

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 1, 2019 NT 10-K

PNRG / PrimeEnergy Corp. NT 10-K

NT 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2018 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition R

December 27, 2018 EX-3.1

Certificate of Incorporation of PrimeEnergy Resources Corporation, as amended and restated of December 21, 2018, (filed as Exhibit 3.1 of PrimeEnergy Resources Corporation Form 8-K on December 27, 2018, and incorporated herein by reference).

EX-3.1 Exhibit 3.1 RESTATED CERTIFICATE OF INCORPORATION OF PRIMEENERGY CORPORATION PrimeEnergy Corporation, a corporation organized and existing under the laws of the State of Delaware, hereby certifies as follows: 1. The name of the corporation is PrimeEnergy Resources Corporation. The name under which the corporation was originally incorporated was K.R.M. Petroleum Corporation. The date of fili

December 27, 2018 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

8-K 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) December 21, 2018 PrimeEnergy Resources Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037

November 19, 2018 10-Q

PNRG / PrimeEnergy Corp. FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 15, 2018 NT 10-Q

PNRG / PrimeEnergy Corp. NT 10-Q

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: September 30, 2018 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition

September 4, 2018 SC 13D/A

PNRG / PrimeEnergy Corp. / AMRACE INC - AMENDMENT NO. 7 TO SCHEDULE 13D Activist Investment

SC 13D/A 1 d614275dsc13da.htm AMENDMENT NO. 7 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 7)* PrimeEnergy Corporation (Name of Issuer) Common Stock (par value $.10 per share) (Title of Class of Securities) 74158E104 (CUSIP Number) Michael A. Varet, Esq. DLA Piper LLP (US) 1251 Avenue o

August 20, 2018 10-Q

PNRG / PrimeEnergy Corp. FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 20, 2018 EX-10.22.5.10.2

SECOND AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of July 17, 2018 among PRIMEENERGY CORPORATION, as Borrower, THE LENDERS PARTY HERETO, COMPASS BANK, as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA COMPASS, as Sole Lead Arranger and Sole Book Runner, (Incorporated by reference to Exhibit 10.22.5.10.2 to PrimeEnergy Corporation Form 10-Q for the quarter ended June 30, 2018).

EX-10.22.5.10.2 Exhibit 10.22.5.10.2 Execution Version SECOND AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of July 17, 2018 among PRIMEENERGY CORPORATION, as Borrower, THE LENDERS PARTY HERETO, COMPASS BANK, as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA COMPASS, as Sole Lead Arranger and Sole Book Runner SECOND AMENDMENT TO T

August 14, 2018 NT 10-Q

PNRG / PrimeEnergy Corp. NT 10-Q

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: June 30, 2018 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Repor

June 14, 2018 8-K

Submission of Matters to a Vote of Security Holders

8-K 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 13, 2018 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Commission Fi

May 18, 2018 10-Q

PNRG / PrimeEnergy Corp. FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 17, 2018 8-K

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

Form 8-K 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) May 17, 2018 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Commissi

May 15, 2018 NT 10-Q

PNRG / PrimeEnergy Corp. NT 10-Q

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 31, 2018 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition Repo

April 27, 2018 DEF 14A

PNRG / PrimeEnergy Corp. DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 17, 2018 EX-99.1

Summary Reserve Report dated February 12, 2018, of Ryder Scott Company, L.P. (filed herewith).

EX-99.1 9 d657100dex991.htm EX-99.1 Exhibit 99.1 PrimeEnergy Corporation Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2017 /s/ James L. Baird /s/ Richard J. Marshall James L. Baird, P.E. Richard J. Marshall, P.E. Colorado License No. 41521 Colorado License No. 23260 Managing Senior Vice President Vice President [SEAL

April 17, 2018 EX-10.22.5.10.1

FIRST AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of December 22, 2017 among PRIMEENERGY CORPORATION, as Borrower, THE LENDERS PARTY HERETO, COMPASS BANK, as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA COMPASS, as Sole Lead Arranger and Sole Book Runner, (Incorporated by reference to Exhibit 10.22.5.10.1 to PrimeEnergy Corporation Form 10-K for the year ended December 31, 2017).

EX-10.22.5.10.1 Exhibit 10.22.5.10.1 Execution copy FIRST AMENDMENT TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of December 22, 2017 among PRIMEENERGY CORPORATION, as Borrower, THE LENDERS PARTY HERETO, COMPASS BANK, as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and BBVA COMPASS, as Sole Lead Arranger and Sole Book Runner FIRST AMENDMENT TO TH

April 17, 2018 10-K

PNRG / PrimeEnergy Corp. FORM 10-K (Annual Report)

Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 17, 2018 EX-21

Subsidiaries (filed herewith).

EX-21 Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Corporation.

April 2, 2018 NT 10-K

PNRG / PrimeEnergy Corp. NT 10-K

NT 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2017 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition R

November 17, 2017 10-Q

PNRG / PrimeEnergy Corp. FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 14, 2017 NT 10-Q

PNRG / PrimeEnergy Corp. NT 10-Q

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: September 30, 2017 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition

August 18, 2017 10-Q

PNRG / PrimeEnergy Corp. FORM 10-Q (Quarterly Report)

Form 10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 14, 2017 NT 10-Q

PrimeEnergy NT 10-Q

NT 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ? Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: June 30, 2017 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Repor

June 9, 2017 8-K

Submission of Matters to a Vote of Security Holders

Form 8-K 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 6, 2017 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Commissio

May 15, 2017 EX-10.22.5.14

Deed of Trust, Mortgage, Security Agreement, Assignment of Production and Financing Statement Dated as of May 5, 2017 (Incorporated by reference to Exhibit 10.22.5.14 to PrimeEnergy Resources Corporation Form 10-Q for the quarter ended March 31, 2017).

EX-10.22.5.14 Exhibit 10.22.5.14 Chambers County, Texas DEED OF TRUST, MORTGAGE, SECURITY AGREEMENT, ASSIGNMENT OF PRODUCTION AND FINANCING STATEMENT Dated as of May 5, 2017 NOTICE OF CONFIDENTIALITY RIGHTS: IF YOU ARE A NATURAL PERSON, YOU MAY REMOVE OR STRIKE ANY OR ALL OF THE FOLLOWING INFORMATION FROM ANY INSTRUMENT THAT TRANSFERS AN INTEREST IN REAL PROPERTY BEFORE IT IS FILED FOR RECORD IN T

May 15, 2017 EX-10.22.5.15

Amended, Restated and Consolidated Mortgage of Oil and Gas Property, Security Agreement, Assignment of Production and Financing Statement Dated as of May 5, 2017 (Incorporated by reference to Exhibit 10.22.5.15 to PrimeEnergy Resources Corporation Form 10-Q for the quarter ended March 31, 2017).

EX-10.22.5.15 Exhibit 10.22.5.15 Caddo County, Oklahoma Grady County, Oklahoma Major County, Oklahoma Canadian County, Oklahoma Grant County, Oklahoma Noble County, Oklahoma Comanche County, Oklahoma Harper County, Oklahoma Roger Mills County, Oklahoma Dewey County, Oklahoma Kingfisher County, Oklahoma Woodward County, Oklahoma Garfield County, Oklahoma Lincoln County, Oklahoma Garvin County, Okla

May 15, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 15, 2017 EX-10.22.5.13

Amended, Restated and Consolidated Deed of Trust, Mortgage, Security Agreement, Assignment of Production and Financing Statement Dated as of May 5, 2017 (Incorporated by reference to Exhibit 10.22.5.13 to PrimeEnergy Resources Corporation Form 10-Q for the quarter ended March 31, 2017).

EX-10.22.5.13 Exhibit 10.22.5.13 Andrews County, Texas Dimmit County, Texas Grimes County, Texas Polk County, Texas Borden County, Texas Duval County, Texas Irion County, Texas Reagan County, Texas Colorado County, Texas Fayette County, Texas Martin County, Texas Upton County, Texas Crane County, Texas Glasscock County, Texas Midland County, Texas Webb County, Texas Crockett County, Texas Goliad C

April 28, 2017 DEF 14A

PrimeEnergy DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 18, 2017 EX-21

SUBSIDIARIES

Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Corporation.

April 18, 2017 EX-10.22.5.12

Amended, Restated and Consolidated Pledge and Security Agreement dated as of February 15, 2017, among PrimeEnergy Resources Corporation, PrimeEnergy Management Corporation, Prime Operating Company, Eastern Oil Well Service Company, Southwest Oilfield Construction Company, EOWS Midland Company and Prime Offshore L.L.C. and Compass Bank, as Administrative Agent for the Secured Parties (Incorporated by reference to Exhibit 10.22.5.12 to PrimeEnergy Resources Corporation Form 10-K for the year ended December 31, 2016).

EX-10.22.5.12 Exhibit 10.22.5.12 AMENDED, RESTATED AND CONSOLIDATED PLEDGE AND SECURITY AGREEMENT THIS AMENDED, RESTATED AND CONSOLIDATED PLEDGE AND SECURITY AGREEMENT (as the same has been or may be amended, restated, supplemented or otherwise modified from time to time, this “Agreement”), dated as of February 15, 2017, is among PRIMEENERGY CORPORATION, a Delaware corporation (“Borrower”), each o

April 18, 2017 EX-10.22.5.11

Amended, Restated and Consolidated Guaranty dated as of February 15, 2017, among PrimeEnergy Management Corporation, Prime Operating Company, Eastern Oil Well Service Company, Southwest Oilfield Construction Company, EOWS Midland Company and Prime Offshore L.L.C. in favor of Compass Bank, as Administrative Agent for the Lenders (Incorporated by reference to Exhibit 10.22.5.11 to PrimeEnergy Resources Corporation Form 10-K for the year ended December 31, 2016).

Exhibit 10.22.5.11 AMENDED, RESTATED AND CONSOLIDATED GUARANTY THIS AMENDED, RESTATED AND CONSOLIDATED GUARANTY (as the same has been or may be amended, restated, supplemented or otherwise modified from time to time, this ?Guaranty?), dated as of February 15, 2017, is made by each of the undersigned Subsidiaries of PRIMEENERGY CORPORATION, a Delaware corporation (the ?Borrower?), whether as an ori

April 18, 2017 EX-99.1

621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147

Exhibit 99.1 FAX (303) 623-4258 621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147 March 20, 2017 PrimeEnergy Corporation One Landmark Square Stamford, Connecticut 06901 Dear Ms. Beverly A. Cummings, At your request, Ryder Scott Company, L.P. (Ryder Scott) has prepared an estimate of the proved reserves, future production, and income attributable to certain leasehold

April 18, 2017 EX-10.25

Purchase and Sale Agreement dated as of January 25, 2017, among PrimeEnergy Corporation, PrimeEnergy Management Corporation, PrimeEnergy Operating Company, PrimeEnergy Asset and Income Fund, L.P. A-2, PrimeEnergy Asset and Income Fund, L.P. A-3, PrimeEnergy Asset and Income Fund, L.P. AA-2, and PrimeEnergy Asset and Income Fund, L.P. AA-4, as Sellers and Guidon Operating LLC, as Purchaser (Incorporated by reference to Exhibit 10.25 to PrimeEnergy Corporation Form 10-K for the year ended December 31, 2016).

Exhibit 10.25 PURCHASE AND SALE AGREEMENT This Purchase and Sale Agreement (as may be amended, restated, supplemented or otherwise modified from time to time, this ?Agreement?) is dated as of January 25, 2017 (the ?Execution Date?), by and between PRIMEENERGY CORPORATION, a Delaware corporation, PRIMEENERGY MANAGEMENT CORPORATION, a New York corporation, PRIMEENERGY ASSET AND INCOME FUND, L.P. A-2

April 18, 2017 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 18, 2017 EX-10.22.5.10

Third Amended and Restated Credit Agreement dated as of February 15, 2017 among PrimeEnergy Resources Corporation, as Borrower, Compass Bank, as Administrative Agent and Lender, Wells Fargo, National Association, as Document Agent, the Lenders Party Hereto (Compass Bank, Wells Fargo, National Association, Citibank, N.A.) and BBVA Compass Bank, as Letter of Credit Issuer and Sole Lead Arranger and Sole Bookrunner (Incorporated by reference to Exhibit 10.22.5.10 to PrimeEnergy Resources Corporation Form 10-K for the year ended December 31, 2016).

EX-10.22.5.10 Exhibit 10.22.5.10 EXECUTION COPY THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of February 15, 2017 among PRIMEENERGY CORPORATION, as Borrower, COMPASS BANK, as Administrative Agent, WELLS FARGO BANK, NATIONAL ASSOCIATION, as Documentation Agent, and THE LENDERS PARTY HERETO BBVA COMPASS Sole Lead Arranger and Sole Book Runner Table of Contents Page ARTICLE I DEFINITIONS AND

March 31, 2017 NT 10-K

PrimeEnergy NT 10-K

NT 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: December 31, 2016 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q ☐ Transition R

February 21, 2017 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

Form 8-K 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) February 15, 2017 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Comm

January 26, 2017 8-K

Entry into a Material Definitive Agreement, Completion of Acquisition or Disposition of Assets, Other Events

Form 8-K 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) January 25, 2017 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Comm

November 14, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 15, 2016 EX-10.22.5.9.10

NINTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND LIMITED WAIVER

EX-10.22.5.9.10 Exhibit 10.22.5.9.10 EXECUTION VERSION NINTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND LIMITED WAIVER THIS NINTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND LIMITED WAIVER (the “Ninth Amendment” or this “Amendment”) is entered into as of July 22, 2016, among PRIMEENERGY CORPORATION, a Delaware corporation (“Borrower”), PRIMEENERGY MANAGEMENT CO

August 15, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 15, 2016 EX-10.22.5.9.10

NINTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND LIMITED WAIVER

EX-10.22.5.9.10 Exhibit 10.22.5.9.10 EXECUTION VERSION NINTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND LIMITED WAIVER THIS NINTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND LIMITED WAIVER (the “Ninth Amendment” or this “Amendment”) is entered into as of July 22, 2016, among PRIMEENERGY CORPORATION, a Delaware corporation (“Borrower”), PRIMEENERGY MANAGEMENT CO

August 15, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 16, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 12, 2016 8-K

Submission of Matters to a Vote of Security Holders

Form 8-K 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) May 10, 2016 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Commissio

April 22, 2016 DEF 14A

PrimeEnergy DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 8, 2016 EX-99.1

621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147 March 14, 2016

EX-99.1 Exhibit 99.1 FAX (303) 623-4258 621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147 March 14, 2016 PrimeEnergy Corporation One Landmark Square Stamford, Connecticut 06901 Dear Ms. Beverly A. Cummings, At your request, Ryder Scott Company, L.P. (Ryder Scott) has prepared an estimate of the proved reserves, future production, and income attributable to certain l

April 8, 2016 EX-21

SUBSIDIARIES

EX-21 Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Corporation.

April 8, 2016 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 31, 2016 NT 10-K

PrimeEnergy NT 10-K

NT 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check One) x Form 10-K ¨ Form 20-F ¨ Form 11-K ¨ Form 10-Q ¨ Form 10-D ¨ Form N-SAR ¨ Form N-CSR For Period Ended: December 31, 2015 ¨ Transition Report on Form 10-K ¨ Transition Report on Form 20-F ¨ Transition Report on Form 11-K ¨ Transition Report on Form 10-Q ¨ Transition R

January 15, 2016 CORRESP

PrimeEnergy ESP

Correspondence PrimeEnergy Corporation 9821 Katy Freeway, Houston, TX 77024 - (713)-735-0000 January 15, 2016 Mr.

January 12, 2016 EX-99.1

JOINT FILING AGREEMENT January 12, 2016

EX-99.1 2 d116145dex991.htm EX-99.1 EXHIBIT 99.1 JOINT FILING AGREEMENT January 12, 2016 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, AMRACE INC., ROBERT DE ROTHSCHILD, MICHAEL A. VARET and RENE-PIERRE AZRIA each hereby agree to the joint filing of this statement on Schedule 13D (including any and all amendments hereto). In addition, each party to this

January 12, 2016 SC 13D/A

PNRG / PrimeEnergy Corp. / AMRACE INC - AMENDMENT NO. 6 TO SCHEDULE 13D Activist Investment

Amendment No. 6 to Schedule 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* PrimeEnergy Corporation (Name of Issuer) Common Stock (par value $.10 per share) (Title of Class of Securities) 74158E104 (CUSIP Number) Michael A. Varet, Esq. DLA Piper LLP (US) 1251 Avenue of the Americas New York, New Y

November 16, 2015 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2015 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 Pr

August 4, 2015 EX-10.22.5.9.9

EIGHTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT THE LENDERS SIGNATORY HERETO June 29, 2015 TABLE O

EX-10.22.5.9.9 Exhibit 10.22.5.9.9 EIGHTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AMONG PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT AND THE LENDERS SIGNATORY HERETO Effective June 29, 2015 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 2 1.1 Terms Defined Above 2 1.2 Terms Defined in Agreemen

August 4, 2015 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2015 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEn

May 22, 2015 EX-3.2

Bylaws of PrimeEnergy Corporation as amended and restated as of May 20, 2015 (filed as Exhibit 3.2 of PrimeEnergy Corporation Form 8-K on May 21, 2015 and incorporated herein by reference).

EX-3.2 Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF PRIMEENERGY CORPORATION As amended and restated through May 20, 2015 ARTICLE I Meetings of the Holders of Voting Securities Section 1. Meetings for the Election of Directors. The annual meeting of the holders of each class of securities entitled to vote shall be held for the election of Directors and for the transaction of such other business as ma

May 22, 2015 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

Form 8-K 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) May 20, 2015 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Commissi

May 14, 2015 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2015 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeE

April 22, 2015 DEF 14A

PrimeEnergy DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 18, 2015 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to . Commission File Number 0-740

March 18, 2015 EX-99.1

621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147 March 4, 2015

Exhibit 99.1 FAX (303) 623-4258 621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147 March 4, 2015 PrimeEnergy Corporation One Landmark Square Stamford, Connecticut 06901 Dear Ms. Beverly A. Cummings, At your request, Ryder Scott Company, L.P. (Ryder Scott) has prepared an estimate of the proved reserves, future production, and income attributable to certain leasehold

March 18, 2015 EX-21

SUBSIDIARIES

EX-21 2 d881399dex21.htm EX-21 Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Corporation. Prime Operating Company, a Texas corporation, 100% owned by PrimeEnergy Corporation. Eastern Oil Well Service Company, a West Virginia corporation, 100% owned by PrimeEnergy Corporation. Southwest Oilfield Construction Company, an Oklahoma corpor

November 13, 2014 EX-10.24.1

Loan and Security Agreement dated July 29, 2014, by and between JP Morgan Chase Bank, N.A. and Eastern Oil Well Service Company, EOWS Midland Company and Southwest Oilfield Construction Company (Incorporated by reference to Exhibit 10.24.1 to PrimeEnergy Corporation Form 10-Q for the quarter ended September 30, 2014).

EXHIBIT 10.24.1 LOAN AND SECURITY AGREEMENT (Equipment) Loan Number: 1000139244 This Agreement is dated as of July 29, 2014 and is executed by and between JPMORGAN CHASE BANK, N.A. (?Lender?), with Lender?s principal office located at 1111 Polaris Parkway, Suite A3 (OH1-1085), Columbus, Ohio 43240 and the borrower identified below (?Borrower?): Borrower Name: EASTERN OIL WELL SERVICE COMPANY, and/

November 13, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2014 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 Pr

November 13, 2014 EX-10.24.3

Guaranty dated July 29, 2014, made by PrimeEnergy Corporation in favor of JP Morgan Chase Bank, N.A. (Incorporated by reference to Exhibit 10.24.3 to PrimeEnergy Corporation Form 10-Q for the quarter ended September 30, 2014).

EXHIBIT 10.24.3 GUARANTY (For a Specific Loan) (Limited) Loan Number: 1000139244 ?Loan Documents? means, collectively, all present and future promissory notes, loan agreements, security agreements and other agreements, instruments and documents related to the loan or other extension of credit made by the Bank identified herein, as the lender or creditor, to the Borrower identified herein which rel

November 13, 2014 EX-10.24.2

Business Purpose Promissory Note dated July 29, 2014, made by Eastern Oil Well Service Company, EOWS Midland Company and Southwest Oilfield Construction Company to JP Morgan Chase Bank N.A. (Incorporated by reference to Exhibit 10.24.2 to PrimeEnergy Corporation Form 10-Q for the quarter ended September 30, 2014).

EXHIBIT 10.24.2 BUSINESS PURPOSE PROMISSORY NOTE Date: July 29, 2014 Loan Number: 1000139244 Amount: $4,838,400.00 This Note is executed together with the Loan and Security Agreement referencing the Loan Number referred to above (?Loan and Security Agreement?) and is executed at Houston , Texas (City) (ST) For value received, receipt of which is hereby acknowledged, the undersigned (?Borrower?) pr

July 31, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2014 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to to Commission File Number 0-7406 Prim

July 31, 2014 EX-10.22.5.9.8

SEVENTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT THE LENDERS SIGNATORY HERETO June 26, 2014 TABLE

Exhibit 10.22.5.9.8 SEVENTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AMONG PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT AND THE LENDERS SIGNATORY HERETO Effective June 26, 2014 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 2 1.1 Terms Defined Above 2 1.2 Terms Defined in Agreement 2 1.3 Refere

May 27, 2014 8-K

Submission of Matters to a Vote of Security Holders

Form 8-K 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) May 22, 2014 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Commissi

May 7, 2014 EX-10.23.4

Agreement of Equipment Substitution dated January 15, 2014, by and between JP Morgan Chase Bank, N.A. and Eastern Oil Well Service Company, EOWS Midland Company and Southwest Oilfield Construction Company (Incorporated by reference to Exhibit 10.23.4 to PrimeEnergy Corporation Form 10-Q for the quarter ended March 31, 2014).

Exhibit 10.23.4 AGREEMENT OF EQUIPMENT SUBSTITUTION AFFECTING LOAN NO 1000137842 dated July 31, 2013, be it understood and agreed by and between JPMORGAN CHASE BANK, N.A. (?Lender?) and Borrower identified below: SUBSTITUTE EQUIPMENT. The following equipment is substituted for equipment covered under the above Loan: Make Model Year Serial No./VIN Big Tex Gooseneck Trailer 2007 16VGX242272665499 Fr

May 7, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2014 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeE

April 24, 2014 DEF 14A

- DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 26, 2014 EX-10.22.5.9.7

ASSIGNMENT AGREEMENT

EX-10.22.5.9.7 Exhibit 10.22.5.9.7 ASSIGNMENT AGREEMENT THIS ASSIGNMENT AGREEMENT (as amended, supplemented, restated or otherwise modified from time to time, this “Agreement”) is dated as of the Assignment Date (as such term is defined hereinafter), by and among AMEGY BANK NATIONAL ASSOCIATION, a national banking association (“Assignor”), COMPASS BANK (successor in interest to Guaranty Bank, FSB)

March 26, 2014 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Form 10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 26, 2014 EX-99.1

621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147

Exhibit 99.1 FAX (303) 623-4258 621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147 March 7, 2014 PrimeEnergy Corporation One Landmark Square Stamford, Connecticut 06901 Dear Ms. Beverly A. Cummings, At your request, Ryder Scott Company, L.P. (Ryder Scott) has prepared an estimate of the proved reserves, future production, and income attributable to certain leasehold

March 26, 2014 EX-21

SUBSIDIARIES

EX-21 Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Corporation.

March 3, 2014 8-K

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

Form 8-K 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) February 25, 2014 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Com

November 5, 2013 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2013 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 Pr

November 5, 2013 EX-10.23.2

Business Purpose Promissory Note dated July 31, 2013, made by Eastern Oil Well Service Company, EOWS Midland Company and Southwest Oilfield Construction Company to JP Morgan Chase Bank N.A. (Incorporated by reference to Exhibit 10.23.2 to PrimeEnergy Corporation Form 10-Q for the quarter ended September 30, 2013).

EXHIBIT 10.23.2 BUSINESS PURPOSE PROMISSORY NOTE Date: July 31, 2013 Loan Number: 1000137842 Amount: $10,000,000.00 This Note is executed together with the Loan and Security Agreement referencing the Loan Number referred to above (“Loan Agreement”) and is executed at Houston, TX (City) (ST) For value received, receipt of which is hereby acknowledged, the undersigned (“Borrower”) promises to pay to

November 5, 2013 EX-10.23.3

Guaranty dated July 31, 2013, made by PrimeEnergy Corporation in favor of JP Morgan Chase Bank, N.A. (Incorporated by reference to Exhibit 10.23.3 to PrimeEnergy Corporation Form 10-Q for the quarter ended September 30, 2013).

EXHIBIT 10.23.3 GUARANTY (For a Specific Loan) (Limited) Loan Number: 1000137842 ?Loan Documents? means, collectively, all present and future promissory notes, loan agreements, security agreements and other agreements, instruments and documents related to the loan or other extension of credit made by the Bank identified herein, as the lender or creditor, to the Borrower identified herein which rel

November 5, 2013 EX-10.23.1

Loan and Security Agreement dated July 31, 2013, by and between JP Morgan Chase Bank, N.A. and Eastern Oil Well Service Company, EOWS Midland Company and Southwest Oilfield Construction Company (Incorporated by reference to Exhibit 10.23.1 to PrimeEnergy Corporation Form 10-Q for the quarter ended September 30, 2013).

EXHIBIT 10.23.1 LOAN AND SECURITY AGREEMENT (Equipment) Loan Number: 1000137842 This Agreement is dated as of July 31, 2013 and is executed by and between JPMORGAN CHASE BANK, N.A. (?Lender?), with Lender?s principal office located at 1111 Polaris Parkway, Suite A3 (OH1-1085), Columbus, Ohio 43240 and the borrower identified below (?Borrower?): Borrower Name: EASTERN OIL WELL SERVICE COMPANY, and/

August 7, 2013 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2013 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEn

August 7, 2013 EX-10.22.5.9.6

SIXTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT THE LENDERS SIGNATORY HERETO June 28, 2013 TABLE OF

Exhibit 10.22596 SIXTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AMONG PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT AND THE LENDERS SIGNATORY HERETO Effective June 28, 2013 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 1 1.1 Terms Defined Above 1 1.2 Terms Defined in Agreement 2 1.3 References

July 12, 2013 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

Form 8-K 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) July 9, 2013 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Commissi

May 8, 2013 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2013 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeE

May 6, 2013 8-K

Submission of Matters to a Vote of Security Holders - FORM 8-K

Form 8-K 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) May 2, 2013 PrimeEnergy Corporation (Exact name of registrant as specified in its charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 11-2695037 (Commission

April 5, 2013 DEF 14A

- DEFINITIVE PROXY STATEMENT

Definitive Proxy Statement Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 27, 2013 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2012 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406

March 27, 2013 EX-10.22.5.9.5

FIFTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT THE LENDERS SIGNATORY HERETO November 26, 2012 TABL

Exhibit 10.22.5.9.5 FIFTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AMONG PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT AND THE LENDERS SIGNATORY HERETO Effective November 26, 2012 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 1 1.1 Terms Defined Above 1 1.2 Additional Defined Term 2 1.3 Terms D

March 27, 2013 EX-21

SUBSIDIARIES

EX-21 3 d445183dex21.htm EX-21 Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Corporation. Prime Operating Company, a Texas corporation, 100% owned by PrimeEnergy Corporation. Eastern Oil Well Service Company, a West Virginia corporation, 100% owned by PrimeEnergy Corporation. Southwest Oilfield Construction Company, an Oklahoma corpor

March 27, 2013 EX-99.1

SEC PARAMETERS Estimated Net Reserves and Income Data Certain Leasehold and Royalty Interests of PrimeEnergy Corporation and 100% of Partnership Interests As of December 31, 2012 Proved Developed Other Total Producing Non-Producing Undeveloped Deduct

Exhibit 99.1 FAX (303) 623-4258 621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147 March 20, 2013 PrimeEnergy Corporation One Landmark Square Stamford, Connecticut 06901 Dear Ms. Beverly A. Cummings: At your request, Ryder Scott Company, L.P. (Ryder Scott) has prepared an estimate of the proved reserves, future production, and income attributable to certain leasehold

February 11, 2013 CORRESP

-

Correspondence Letter PrimeEnergy Management Corporation 9821 Katy Freeway, Suite 1050 .

December 20, 2012 CORRESP

-

Correspondence PrimeEnergy Management Corporation 9821 Katy Freeway, Suite 1050 — Houston, Texas 77024 (713) 735-0000 — FAX (713) 735-0090 December 20, 2012 Mr.

November 9, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2012 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 Pr

August 9, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2012 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEn

August 9, 2012 EX-10.22.5.9.4

FOURTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT THE LENDERS SIGNATORY HERETO June 25, 2012 TABLE O

EX-10.22.5.9.4 Exhibit 10.22.5.9.4 FOURTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AMONG PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT AND THE LENDERS SIGNATORY HERETO Effective June 25, 2012 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 1 1.1 Terms Defined Above 1 1.2 Terms Defined in Agreemen

May 24, 2012 8-K

Other Events, Submission of Matters to a Vote of Security Holders - FORM 8-K

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): May 22, 2012 PrimeEnergy Corporation (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Commission File Number) (IRS Employer Identification No.

May 9, 2012 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2012 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeE

April 19, 2012 DEF 14A

- DEFINITIVE PROXY STATEMENT

Definitive Proxy Statement Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 29, 2012 EX-99.1

March 7, 2012

Exhibit 99.1 FAX (303) 623-4258 621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE (303) 623-9147 March 7, 2012 PrimeEnergy Corporation One Landmark Square Stamford, Connecticut 06901 Dear Ms. Beverly A. Cummings: At your request, Ryder Scott Company (Ryder Scott) has prepared an estimate of the proved reserves, future production, and income attributable to certain leasehold and ro

March 29, 2012 EX-21

SUBSIDIARIES

Exhibit 21 SUBSIDIARIES PrimeEnergy Management Corporation, a New York corporation, 100% owned by PrimeEnergy Corporation.

March 29, 2012 EX-10.22.5.9.3

THIRD AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT THE LENDERS SIGNATORY HERETO December 8, 2011 TABLE

Exhibit 10.22.5.9.3 THIRD AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AMONG PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT AND THE LENDERS SIGNATORY HERETO Effective December 8, 2011 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 1 1.1 Terms Defined Above 1 1.2 Terms Defined in Agreement 1 1.3 Refer

March 29, 2012 EX-14

PrimeEnergy Resources Corporation Code of Business Conduct and Ethics, as amended December 16, 2011 (Incorporated by reference to Exhibit 14 of PrimeEnergy Resources Corporation Form 10-K for the year ended December 31, 2011).

Exhibit 14 PrimeEnergy Corporation and Subsidiaries CODE OF BUSINESS CONDUCT AND ETHICS Introduction: The Company has a Code of Business Conduct and Ethics (the ?Code) covers a wide range of business practices and procedures.

March 29, 2012 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2011 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406

November 9, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2011 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 Pr

August 15, 2011 EX-10.22.5.9.2

SECOND AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT THE LENDERS SIGNATORY HERETO June 22, 2011 TABLE O

Second Amendment To Second Amended and Restated Credit Agreement Exhibit 10.22.5.9.2 SECOND AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AMONG PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT AND THE LENDERS SIGNATORY HERETO Effective June 22, 2011 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 1 1.1 T

August 15, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2011 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeEn

May 27, 2011 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): May 25, 2011 PrimeEnergy Corporation (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 0-7406 84-0637348 (Commission File Number) (IRS Employer Identification No.

May 13, 2011 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2011 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 PrimeE

April 20, 2011 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14

April 8, 2011 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2010 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406

April 8, 2011 EX-99.1

SEC PARAMETERS Estimated Net Reserves and Income Data Certain Leasehold and Royalty Interests of PrimeEnergy Corporation and 100% of Partnership Interests As of December 31, 2010 Proved Developed Other Deductions Total Proved Producing Non-Producing

EX-99.1 9 dex991.htm SUMMARY RESERVE REPORT Exhibit 99.1 FAX (303) 623-4258 621 SEVENTEENTH STREET SUITE 1550 DENVER, COLORADO 80293 TELEPHONE 303) 623-9147 March 28, 2011 PrimeEnergy Corporation One Landmark Square Stamford, Connecticut 06901 Dear Ms. Beverly A. Cummings: At your request, Ryder Scott Company (Ryder Scott) has prepared an estimate of the proved reserves, future production, and inc

April 8, 2011 EX-21

Subsidiaries

Exhibit 21 Subsidiaries PrimeEnergy Management Corporation, a New York corporation 100% owned by PrimeEnergy Corporation Prime Operating Company, a Texas corporation 100% owned by PrimeEnergy Corporation Eastern Oil Well Service Company, a West Virginia corporation 100% owned by PrimeEnergy Corporation Southwest Oilfield Construction Company, an Oklahoma corporation, 100% owned by PrimeEnergy Corporation E O W S Midland Company, a Texas corporation, 100% owned by PrimeEnergy Corporation Prime Offshore L.

April 8, 2011 EX-10.27.3.3

Loan Modification

Exhibit 10.27.3.3 Loan Modification This Loan Modification is executed this 10th day of January, 2011, to be effective on the 3rd day of January, 2011 (the ?Effective Date?) by and among ARTIC MANAGEMENT CORPORATION, a corporation incorporated under the laws of Panama (?Artic?), the address for which, for purposes hereof, is Attn: Matthias Eckenstein Solothurnerstrasse 94, CH-4008, Basel, Switzerl

April 1, 2011 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

: UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING : (Check One) x Form 10-K ? Form 20-F ? Form 11-K ? Form 10-Q ? Form 10-D ? Form N-SAR ? Form N-CSR For Period Ended: December 31, 2010 ? Transition Report on Form 10-K ? Transition Report on Form 20-F ? Transition Report on Form 11-K ? Transition Report on Form 10-Q ? Transition Repor

March 14, 2011 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 2

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 2 (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2009 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406

March 14, 2011 EX-99.1

PrimeEnergy Corporation Future Reserves Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2009

Exhibit 99.1 PrimeEnergy Corporation Estimated Future Reserves Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2009 \s\ Michael F. Stell \s\ Richard J. Marshall Michael F. Stell, P.E. Richard J. Marshall, P.E. TBPE License No. 56416 Colorado License No. 23260 Managing Senior Vice President Vice President [SEAL] RYDER SCOTT COMPANY, L.P. [SEAL] TBPE Firm Re

March 3, 2011 EX-99.1

PrimeEnergy Corporation Future Reserves Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2009

Exhibit 99.1 PrimeEnergy Corporation Estimated Future Reserves Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2009 \s\ Michael F. Stell \s\ Richard J. Marshall Michael F. Stell, P.E. Richard J. Marshall, P.E. TBPE License No. 56416 Colorado License No. 23260 Managing Senior Vice President Vice President [SEAL] RYDER SCOTT COMPANY, L.P. [SEAL] TBPE Firm Re

March 3, 2011 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2009 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406

February 18, 2011 CORRESP

February 18, 2011

February 18, 2011 Anne Nguyen Parker Branch Chief United States Securities and Exchange Commission Division of Corporation Finance 100 F.

February 3, 2011 CORRESP

February 3, 2011

February 3, 2011 Anne Nguyen Parker Branch Chief Securities and Exchange Commission Washington, DC 20549-7010 Dear Ms.

January 5, 2011 SC 13G

OMB APPROVAL UNITED STATES OMB Number: 3235-0145 SECURITIES AND EXCHANGE COMMISSION Expires: February 28, 2009 Washington, D.C. 20429 Estimated average burden hours per response 10.4

OMB APPROVAL UNITED STATES OMB Number: 3235-0145 SECURITIES AND EXCHANGE COMMISSION Expires: February 28, 2009 Washington, D.

November 24, 2010 CORRESP

PrimeEnergy Corporation Future Reserves Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2009

November 24, 2010 H. Roger Schwall Assistant Director United States Securities and Exchange Commission Division of Corporation Finance 100 F. Street, N.E. Washington, D.C. 20549 Re: PrimeEnergy Corporation Form 10-K for the Fiscal Year Ended December 31, 2009 Filed April 15, 2010 Form 10-Q for the Fiscal Quarter Ended March 31, 2010 Filed May 17, 2010 Form 10-Q for the Fiscal Quarter Ended June 30

November 15, 2010 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2010 Or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period From to Commission File Number 0-7406 Pr

November 15, 2010 EX-10.22.5.9.1

FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT THE LENDERS SIGNATORY HERETO September 30, 2010 TAB

Exhibit 10.22.5.9.1 FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AMONG PRIMEENERGY CORPORATION THE GUARANTORS PARTY HERETO COMPASS BANK AS ADMINISTRATIVE AGENT, LETTER OF CREDIT ISSUER AND COLLATERAL AGENT AND THE LENDERS SIGNATORY HERETO Effective September 30, 2010 TABLE OF CONTENTS PAGE ARTICLE I DEFINITIONS 1 1.1 Terms Defined Above 1 1.2 Terms Defined in Agreement 1 1.3 Ref

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