Horizon Petroleum Ltd. — Proxy Solicitation & Information Statement 2024

Aug 15, 2024

324-8th Avenue SW, 8th floor Calgary AB, T2P 2Z2 www.computershare.com

August 15, 2024

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To: All Canadian Securities Regulatory Authorities

Subject: Horizon Petroleum Ltd.

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type :

Special Meeting

Record Date for Notice of Meeting : September 09, 2024 Record Date for Voting (if applicable) : September 09, 2024 Beneficial Ownership Determination Date : September 09, 2024 Meeting Date : October 23, 2024 Meeting Location (if available) : Calgary, AB Issuer sending proxy related materials directly to NOBO: Yes Issuer paying for delivery to OBO: No

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders Yes Beneficial Holders Stratification Criteria: Not Applicable NAA for Registered Holders Yes Registered Holders Stratification Criteria: Not Applicable

Voting Security Details:

Description

COMMON SHARES

CUSIP Number ISIN 44053J409 CA44053J4090

Sincerely,

Computershare

Agent for Horizon Petroleum Ltd.