# EDGAR Filing Document

**Accession Number:** 0002048199
**File Stem:** 0001292814-25-003336
**Filing Date:** 2025-9
**Character Count:** 10001
**Document Hash:** 7eb8821da6e6eeeec1ce8ddf37a73e8d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001292814-25-003336.hdr.sgml**: 20250918

**ACCESSION NUMBER**: 0001292814-25-003336

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250918

**DATE AS OF CHANGE**: 20250918

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GeoPark Ltd
- **CENTRAL INDEX KEY:** 0001464591
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** D0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-87998
- **FILM NUMBER:** 251324608

**BUSINESS ADDRESS:**
- **STREET 1:** CALLE 94 NO. 11-30 8 PISO
- **CITY:** BOGOTA
- **STATE:** F8
- **ZIP:** 00000
- **BUSINESS PHONE:** 562-2242-9600

**MAIL ADDRESS:**
- **STREET 1:** CALLE 94 NO. 11-30 8 PISO
- **CITY:** BOGOTA
- **STATE:** F8
- **ZIP:** 00000

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** GeoPark Holdings Ltd
- **DATE OF NAME CHANGE:** 20090520
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Generation Argentina Inc
- **CENTRAL INDEX KEY:** 0002048199

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** C1
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** MAIPU 1
- **CITY:** BUENOS AIRES
- **STATE:** C1
- **ZIP:** 1084
- **BUSINESS PHONE:** 01143446000

**MAIL ADDRESS:**
- **STREET 1:** MAIPU 1
- **CITY:** BUENOS AIRES
- **STATE:** C1
- **ZIP:** 1084

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**GeoPark Ltd**

*(Name of Issuer)*

**Common Shares, par value $0.001**

*(Title of Class of Securities)*

**G38327105**

*(CUSIP Number)*

**Maria Carolina Sigwald**<br>Maipu 1<br>Buenos Aires C1 1084<br>54-11-4344-6000

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**09/18/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **G38327105** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Pampa Energy Inc.** | Name of reporting person<br>**Pampa Energy Inc.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**C1** | Citizenship or place of organization<br>**C1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**2285195.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**2285195.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2285195.00** | Aggregate amount beneficially owned by each reporting person<br>**2285195.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**4.43%** | Percent of class represented by amount in Row (11)<br>**4.43%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

| **CUSIP No.** | **G38327105** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Generation Argentina Inc** | Name of reporting person<br>**Generation Argentina Inc** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**C1** | Citizenship or place of organization<br>**C1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**2285195.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**2285195.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**2285195.00** | Aggregate amount beneficially owned by each reporting person<br>**2285195.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**4.43%** | Percent of class represented by amount in Row (11)<br>**4.43%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Shares, par value $0.001

**(b) Name of Issuer:**
GeoPark Ltd

**(c) Address of Issuer's Principal Executive Offices:**
CALLE 94 NO. 11-30 8 PISO, BOGOTA, F8, 00000

This Amendment No. 1 amends and supplements the Schedule 13D previously filed with the U.S. Securities and Exchange Commission (the "SEC") on May 22, 2025 (as amended from time to time, the "Schedule 13D"), with respect to the common stock, $0.001 par value per share (the "Shares") of GeoPark Limited, an exempted company incorporated under the laws of Bermuda ("GeoPark Limited" or the "Issuer"), which are listed on the New York Stock Exchange (the "NYSE"). The principal executive offices of GeoPark Limited are located at Calle 94 N(degree) 11-30 8(degree) piso, Bogota, Colombia.
Unless otherwise stated herein, the Schedule 13D remains in full force and effect. Capitalized terms used in this Amendment No. 1 and not otherwise defined shall have the same meanings ascribed to them in the original Schedule 13D.

**Item 4. Purpose of Transaction**

No material changes to Schedule 13D.

**Item 5. Interest in Securities of the Issuer**

**(a)**
GASA directly owns the Reported Securities. GASA is a wholly-owned subsidiary of Pampa Energia. Therefore, each of the Reporting Persons is deemed to have, as of the date hereof, the following interest in the Reported Securities:
Shares Owned: 2,285,195
% of Class(1): 4.43%
Sole Power to Vote: 2,285,195
Shared Power to Vote: 0
Sole Power to Dispose: 2,285,195
Shared Power to Dispose: 0
(1) Calculated based on 51,567,663 shares outstanding as of the last 6-K filing of the Issuer published on August 5, 2025. Since the last publication of the 13D form, Geopark Limited has increased its share capital from 51,247,287 to 51,567,663.

**(b)**
GASA directly owns the Reported Securities. GASA is a wholly-owned subsidiary of Pampa Energia. Therefore, each of the Reporting Persons is deemed to have, as of the date hereof, the following interest in the Reported Securities:
Shares Owned: 2,285,195
% of Class(1): 4.43%
Sole Power to Vote: 2,285,195
Shared Power to Vote: 0
Sole Power to Dispose: 2,285,195
Shared Power to Dispose: 0
(1) Calculated based on 51,567,663 shares outstanding as of the last 6-K filing of the Issuer published on August 5, 2025. Since the last publication of the 13D form, Geopark Limited has increased its share capital from 51,247,287 to 51,567,663.

**(c)**
During the past sixty days, GASA has made the following open market transactions on the NYSE regarding the Issuer's Shares:
On September 15, 2025, GASA sold 60,911 Shares at US$6.31560 per Share through an open market transaction, totaling US$384,689.51.
On September 16, 2025, GASA sold 1,044,332 Shares at US$6.47561 per Share through an open market transaction, totaling US$6,762,686.74.
On September 17, 2025, GASA sold 1,009,500 Shares at US$6.53300 per Share through an open market transaction, totaling US$6,595,063.50.
On September 18, 2025, GASA sold 810,208 Shares at US$6.32188 per Share through an open market transaction, totaling US$5,122,036.94.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

No material changes to Schedule 13D.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Pampa Energy Inc.

**Signature:** Gustavo Mariani

**Name/Title:** Gustavo Mariani / CEO

**Date:** 09/18/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Generation Argentina Inc

**Signature:** Gustavo Mariani

**Name/Title:** Gustavo Mariani / Legal Representative

**Date:** 09/18/2025