Securities Disclaimer

Securities Not Registered

The securities offered by Trilateral Horizontal Program, LP have not been registered under the Securities Act of 1933, as amended (the "Securities Act"), or the securities laws of any state and are being offered and sold in reliance on exemptions from the registration requirements of the Securities Act and such state laws.

Private Placement Offering

This offering is made pursuant to Rule 506(c) of Regulation D under the Securities Act of 1933. General solicitation is permitted. Units may be sold only to accredited investors whose accredited status has been verified by a third-party accreditation service.

Accredited Investors Only

Participation in this offering is limited to accredited investors only. You must meet the definition of an "Accredited Investor" as defined in Rule 501 of Regulation D under the Securities Act to participate in this offering.

High Risk Investment

This is a high risk, speculative investment. There is a substantial risk of loss of your entire investment. Oil and gas exploration and development involves significant risks including:

• • Total loss of investment
• • No guarantee of oil or gas discovery
• • Volatile commodity prices
• • Operational and environmental hazards
• • No public market for resale

General Solicitation

This offering is made pursuant to Rule 506(c) of Regulation D. General solicitation is permitted. Units may be sold only to accredited investors whose accredited status has been verified by a third-party accreditation service.

No SEC or State Approval

The Securities and Exchange Commission and state securities authorities have not approved or disapproved these securities or passed upon the accuracy or adequacy of any information contained herein. Any representation to the contrary is a criminal offense.

Professional Advice Required

You should consult with your attorney, accountant, and financial advisor before making any investment decision. This information does not constitute investment, legal, or tax advice.

Offering Materials

Complete offering information is contained in the Private Placement Memorandum, which must be read in its entirety before any investment decision is made.