帝国石油 Corp美股招股说明书(2025-07-25版)

Corporation, a Delaware corporation (the “Company,” “we,” “us” or “our”), as of the close of business, on July 10, 2025 (the “RecordDate”), subscription rights to purchase up to 33,766,388 units at $0.07367 per unit (the “subscription price”), each unit consisting of per unit to more accurately reflect the intended terms of the rights offering.A stockholder must hold at least 72 shares of common stock to receive subscription rights to purchase at least one whole share at$5.30 per share, as well as at least 74 shares of common stock to receive warrants to purchase one whole share at $5.46 per share.Forexample, if a stockholder owned 100 shares of our common stock on the record date, the stockholder would be granted subscriptionrights to purchase an aggregate of 1.39 shares of common stock (rounded down to the nearest whole share) and warrants exercisablefor 1.36 shares of common stock (rounded down to the nearest whole share) at the subscription price. subscription right and other stockholders do not fully exercise their subscription rights, you will have an over-subscription right topurchase additional units that remain unsubscribed at the Expiration Date (defined below).This supplement should be read in conjunction with, is not complete without, and may not be delivered or utilized except inconnection with, the prior prospectus supplements dated July 10, 2025 and July 24, 2025 (including the base prospectus dated The subscription rights will expire and will have no value if they are not exercised prior to the expiration date of the rightsoffering, which has been extended to 5:00 p.m. Eastern Time, on August 18, 2025 (the “Expiration Date”), unless we, in our solediscretion, extend the period further for exercising the subscription rights. We have extended the Expiration Date in order to allow ourstockholders to have more time to consider their participation and arrange finances for the rights offering. We will extend the duration offering by holders of our common stock is less than the level we desire. You should carefully consider whether or not to exercise yoursubscription rights before the Expiration Date. We reserve the right to cancel the rights offering at any time before the Expiration Date,for any reason. We have not employed any brokers, dealers or underwriters in connection with the solicitation or exercise of rights in the rightsoffering and no commissions, fees or discounts will be paid in connection with the rights offering. Securities Transfer Corporation(“STC”) is acting as the subscription and information agent for the rights offering. STC is also transfer agent and registrar for our common stock. While certain of our directors, officers and other employees may solicit responses from you, those directors, officersand other employees will not receive any commissions or compensation for their services other than their normal compensation.Our common stock is listed on the NYSE American (the “NYSEA”) under the symbol “EP.” On July 24, 2025, the last reportedsale price for our common stock on the NYSEA was $4.96 per share. Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined ifthis prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a The date of this prospectus supplement is July 25, 2025