SECURITIES AND EXCHANGE COMMISSIONSEC FORM 17-C

CURRENT REPORT UNDER SECTION 17
OF THE SECURITIES REGULATION CODE
AND SRC RULE 17.2(c) THEREUNDER

1. Date of Report (Date of earliest event reported)

Oct 20, 2017

2. SEC Identification Number

31171

3. BIR Tax Identification No.

000-168-801

4. Exact name of issuer as specified in its charter

PETRON CORPORATION

5. Province, country or other jurisdiction of incorporation

Philippines

6. Industry Classification Code(SEC Use Only)

7. Address of principal office

San Miguel Head Office Complex, 40 San Miguel Avenue, Mandaluyong City Postal Code 1550

8. Issuer's telephone number, including area code

(63 2) 886-3888, 884-9200

9. Former name or former address, if changed since last report

N/A

10. Securities registered pursuant to Sections 8 and 12 of the SRC or Sections 4 and 8 of the RSA

Title of Each Class	Number of Shares of Common Stock Outstanding and Amount of Debt Outstanding
COMMON (PCOR)	9,375,104,497
PREFERRED SERIES 2A (PRF2A)	7,122,320
PREFERRED SERIES 2B (PRF2B)	2,877,680
PCOR SERIES A BONDS DUE 2021 (IN MIL PESO)	13,000
PCOR SERIES B BONDS DUE 2023 (IN MIL PESO)	7,000
TOTAL DEBT AS OF JUNE 30, 2017 (IN MIL PESO-CONSO)	222,792

11. Indicate the item numbers reported herein

Item 5

The Exchange does not warrant and holds no responsibility for the veracity of the facts and representations contained in all corporate disclosures, including financial reports. All data contained herein are prepared and submitted by the disclosing party to the Exchange, and are disseminated solely for purposes of information. Any questions on the data contained herein should be addressed directly to the Corporate Information Officer of the disclosing party.

Petron CorporationPCOR

PSE Disclosure Form 4-26 - Legal Proceedings References: SRC Rule 17 (SEC Form 17-C) and
Section 4.4 of the Revised Disclosure Rules

Subject of the Disclosure
Complaint against Philippine National Oil Company ("PNOC").
Background/Description of the Disclosure
Complaint for Resolution and Reconveyance, and Damages, with Verified Ex-Parte Application for 72-hour Temporary Restraining Order and Verified Applications for 20-day Temporary Restraining Order and Writ of Preliminary Injunction. Please see attached letter for further information.

Name of the court or agency in which the proceedings are pending	Regional Trial Court, Mandaluyong
Date Instituted	Oct 20, 2017
Docket Number	-

Principal Parties
Petron Corporation and PNOC.
Nature and description of the legal proceedings
Complaint for Resolution and Reconveyance, and Damages, with Verified Ex-Parte Application for 72-hour Temporary Restraining Order and Verified Applications for 20-day Temporary Restraining Order and Writ of Preliminary Injunction.
The effect(s) on the Issuer's business or operations, if any
The properties subject of the lease were only conveyed to PNOC by the Company pursuant to the Philippine Government’s privatization plan in 1993 and in consideration for the Company’s right to lease the subject properties and to renew such lease.
Other Relevant Information
Please see attached letter dated October 20, 2017.