(via TheNewswire)

Calgary, Alberta (November 18, 2025) – TheNewswire - Decimus Oil Corp. (“WCSB” or the “Company”) (TSXV:WCSB) is pleased to announce a non-brokered private placement offering of up to 42,500,000 units (each a " Unit ") at a price of CDN $0.08 per Unit for aggregate gross proceeds of up to CDN$3,400,000 (the “ Financing ”).

Each Unit will consist of one common share of the Company (a " Common Share ") and one-half of one common share purchase warrant (a " Warrant "). Each whole Warrant issued under the Financing will entitle the holder to acquire one additional Common Share at a price of $0.12 for a period of 12 months from the date of issuance. The Warrants will include an acceleration clause to the effect that if at any time the daily volume weighted average closing price of the Common Shares on the TSX Venture Exchange is $0.15 or more for a period of ten (10) consecutive days, the Company will be entitled to notify all holders of Warrants of its intention to force the exercise of the Warrants and to issue a press release to such effect, following which the holders of Warrants shall have thirty (30) days from the date of the press release to exercise the Warrants. All the Common Shares and Warrants issued in connection with this financing will be subject to a statutory four-month plus one day hold period in accordance with applicable securities laws.

The Company reserves the ability to pay a finder fee of up to 8% of the gross proceeds of the financing.  Closing of this private placement is subject to receipt of approval from the TSX Venture Exchange.

“This financing will further position Decimus to execute on its most profitable capital projects all focused in Southern Alberta, aimed at increasing production to over 400 boe/d, representing a +125% increase over existing Q2/25 production, while also adding material value to the Company’s net asset value”, said Cameron MacDonald, President & CEO.

CAPITAL BUDGET

The proceeds raised from this financing will be used to complete the following capital activities and for general working capital purposes.

• Murray Lake: Drill 1.0 net Mannville step-out well which is estimated to cost $1.0 million and will contribute approximately 75-90 boe/d (97% oil), significantly increasing current field production from 35 boe/d to well over 100 boe/d and increasing field net operating margins per boe.  

• Bantry Acquisition: In connection with the Bantry acquisition announced October 28, 2025, the Company estimated the reactivation and repair cost to reactive both fields (Brooks Namaka) will be approximately $550,000. Upon reactivation of both fields the acquired assets will contribute approximately 100-135 boe/d (100% gas).  

• Vulcan: Further expand our Vulcan 5-21 multi-well facility for a cost of approximately $96,000 to further upgrade onsite storage, custom treating, water disposal and handling capabilities to service a new third-party agreement to handle between 40-70m3 fluid per day, which will more than double current volumes and third-party processing income.  

• Parkland: Complete 1.0 net vertical re-entry into the upper Bow Island formation at its Parkland property, which is estimated to cost $65,000, which will contribute approximately 40-50 boe/d (100% gas).  

When combining the current base production of 176 boe/d (as of Q2/25) to the low-risk projects above, the Company estimates corporate production could increase to approximately 400 boe/d. This production increase  will materially reduce corporate fixed costs per boe and improve overall netbacks and cashflows. It is anticipated that the Company’s capital efficiency from the capital program will be approximately $15,200 per flowing boepd.

It is possible that insiders of the company may participate in the Offering and the Company will be relying on the exemption from the formal valuation and minority shareholder approval requirements pursuant to sections 5.5(a) and 5.7(1)(a) of Canadian Multilateral Instrument 61-101 -  Protection of Minority Shareholders in Related Party Transactions , as neither the fair market value of any securities issued to nor the consideration paid by such person could exceed 25% of the Company's market capitalization.

The securities to be offered pursuant to the offering have not been, and will not be, registered under the U.S. Securities Act of 1933, as amended (the “ U.S. Securities Act ”) or any U.S. state securities laws, and may not be offered or sold in the United States or to, or for the account or benefit of, United States persons absent registration or any applicable exemption from the registration requirements of the U.S. Securities Act and applicable U.S. state securities laws.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any jurisdiction in which such offer, solicitation or sale would be unlawful

Additional Information on Decimus can be found on the website and updated Corporate Presentation

Interested investors and other market participants can learn more about the Decimus opportunity by visiting its new website and reviewing the Company’s corporate presentation, available at  www.decimusoil.com   

For further information:

Cameron MacDonald

President & CEO
Phone: (403) 585-9875

Or

Dean Stuart

Investor Relations

Phone: (403) 617-7609

Email: ir@decimusoil.com

About Decimus Oil Corp.

Decimus Oil Corp. is engaged in the acquisition, development and production of oil and gas in the Western Canadian Sedimentary Basin. The Company is focused on Mannville development in Southern Alberta where it’s advancing its low-risk acquisition strategy, paired with deploying modern completion techniques to expose its underexploited drilling opportunities to unlock significant resource in place.

Forward-looking Information and Statements

The information in this news release contains certain forward-looking statements. These statements relate to future events or our future performance. All statements other than statements of historical fact may be forward-looking statements. Forward-looking statements are often, but not always, identified by the use of words such as "seek", "anticipate", "plan", "continue", "estimate", "approximate", "expect", "may", "will", "project", "predict", "potential", "targeting", "intend", "could", "might", "should", "believe", "would" and similar expressions. These statements involve substantial known and unknown risks and uncertainties, certain of which are beyond the Company's control, including: the impact of the COVID-19 pandemic on the Company's business and operations (and the duration of the impacts thereof). the inability of the Company to meet its commitments on its lands or on the lands it may acquire, the impact of general economic conditions; industry conditions; changes in laws and regulations including the adoption of new environmental laws and regulations and changes in how they are interpreted and enforced; fluctuations in commodity prices and foreign exchange and interest rates; stock market volatility and market valuations; volatility in market prices for oil and natural gas; liabilities inherent in oil and natural gas operations; uncertainties associated with estimating oil and natural gas reserves, changes in income tax laws or changes in tax laws and incentive programs relating to the oil and gas industry; geological, technical, drilling and processing problems and other difficulties in producing petroleum reserves; and obtaining required approvals of regulatory authorities. The Company's actual results, performance or achievement could differ materially from those expressed in, or implied by, such forward-looking statements and, accordingly, no assurances can be given that any of the events anticipated by the forward-looking statements will transpire or occur or, if any of them do, what benefits the Company will derive from them. These statements are subject to certain risks and uncertainties and may be based on assumptions that could cause actual results to differ materially from those anticipated or implied in the forward-looking statements. The forward-looking statements in this news release are expressly qualified in their entirety by this cautionary statement. Except as required by law, the Company undertakes no obligation to publicly update or revise any forward-looking statements. Investors are encouraged to review and consider the additional risk factors set forth in the Company's continuous disclosure documents which are available on SEDAR+ at www.sedarplus.ca

OIL AND GAS ADVISORIES

Reserves Volumes and Net Present Values

All reserve references in this press release are "Company share (gross) reserves". Company share reserves are our total working interest reserves before the deduction of any royalties and including any royalty interests payable to the Company.

It should not be assumed that the present worth of estimated future amounts presented in the tables above represents the fair market value of the reserves. There is no assurance that the forecast prices and costs assumptions will be attained, and variances could be material. The recovery and reserve estimates of the crude oil, natural gas liquids and natural gas reserves provided herein are estimates only and there is no guarantee that the estimated reserves will be recovered. Actual crude oil, natural gas and natural gas liquids reserves may be greater than or less than the estimates provided herein.

The reserve and resource estimates of natural gas and natural gas liquids reserves provided in this news release are estimates only, and there is no guarantee that the estimated reserves and/or resources will be recovered.  Actual reserves and resources may eventually prove to be greater than, or less than, the estimates provided herein.  It should not be assumed that the estimates of future net revenues presented herein represent the fair market value of the reserves and/or resources.  There are numerous uncertainties inherent in estimating quantities of natural gas and natural gas liquids reserves and/or resources and the future cash flows attributed to such reserves and/or resources.

These risks and uncertainties include but are not limited to: (i) the fact that there is no certainty that the zones of interest will exist to the extent estimated or that the zones will be found to have natural gas with characteristics that meet or exceed the minimum criteria in terms of net pay thickness and/or porosity, or that the natural gas will be commercially recoverable to the extent estimated; (ii) the fact that there is no certainty that any portion of the probable reserves and contingent and prospective resources will be commercially viable to produce; (iii) the fact that the Company must hire an operations team and executive team in Calgary in order to execute on the development plan, and there are no guarantees that suitably qualified technical and professional staff and/or consultants will be available; (iv) the lack of additional financing to fund the Company's development activities and continued operations; (v) the risks associated with obtaining approvals to access land to drill wells or install infrastructure and facilities in a reasonable time frame; the Canada regulatory regime is relatively stable but is marked with long approval processes relative to North American jurisdictions; (vi) the risks in acquiring or constructing adequate infrastructure to produce and sell oil & natural gas, and whether capacity will be available in the existing main pipeline system at reasonable costs; (vii) the risk that there may not be a drilling rig available to drill the required wells, and the risk that if a rig mobilization is required, that the costs may be prohibitive; (ix) risks inherent in the international oil and natural gas industry; * fluctuations in foreign exchange and interest rates; (xi) the number of competitors in the oil and gas industry with greater technical, financial and operations resources and staff; (xii) fluctuations in world prices and markets for oil and natural gas due to domestic, international, political, social, economic and environmental factors beyond the Company's control;  (xiii) changes in government regulations affecting oil and natural gas operations; (xiv) potential liabilities for pollution or hazards against which the Company cannot adequately insure or which the Company may elect not to insure; (xv) contingencies affecting the classification as reserves versus resources which relate to the following issues as detailed in the COGE Handbook: ownership considerations, drilling requirements, testing requirements, regulatory considerations, infrastructure and market considerations, timing of production and development, and economic requirements; (xvi) the fact that there is no certainty that any portion of the prospective resources will be discovered and if discovered, there is no certainty that it will be commercially viable to produce any portion of the resources; and (xvii) other factors beyond the Company's control.

Barrel of Oil Equivalency

"Boe"  means barrel of oil equivalent. All boe conversions in this press release are derived by converting gas to oil at the ratio of six thousand cubic feet ("Mcf") of natural gas to one barrel ("Bbl") of oil. Boe may be misleading, particularly if used in isolation. A Boe conversion rate of 1 Bbl : 6 Mcf is based on an energy equivalency conversion method primarily applicable at the burner tip and does not represent a value equivalency at the wellhead. Given that the value ratio of oil compared to natural gas based on currently prevailing prices is significantly different than the energy equivalency ratio of 1 Bbl : 6 Mcf, utilizing a conversion ratio of 1 Bbl : 6 Mcf may be misleading as an indication of value.

Oil and Gas Metrics

This press release contains metrics commonly used in the oil and natural gas industry which have been prepared by management, such as  "acquisition capital" , "operating netback" These terms do not have a standardized meaning and may not be comparable to similar measures presented by other companies, and therefore should not be used to make such comparisons.

"Acquisition capital"  is a non-GAAP financial measure used in the determination of FD&A costs, which is a non-GAAP ratio. The most directly comparable GAAP measure to acquisition capital is expenditures on corporate acquisitions, net of cash acquired, and expenditures on property acquisitions. For property acquisitions, acquisition capital is the purchase price, including cash and/or shares of assets acquired (disposed). For corporate acquisitions, it is the purchase price (cash and/or shares plus assumed bank debt, if applicable) including any estimated working capital surplus or deficit rather than the amounts allocated to PP&E for accounting purposes.

Management uses these oil and gas metrics for its own performance measurements and to provide shareholders with measures to compare our operations over time. Readers are cautioned that the information provided by these metrics, or that can be derived from the metrics presented in this press release, should not be relied upon for investment or other purposes.

Drilling Locations

This press release discloses drilling inventory in two categories: (i) booked locations (proved and probable); and (ii) unbooked locations. Booked locations represent the summation of proved and probable locations, which are prepared by management  and account for drilling locations that have associated proved and/or probable reserves, as applicable. Unbooked locations are internal estimates based on our prospective acreage and an assumption as to the number of wells that can be drilled per section based on industry practice and internal review. Unbooked locations do not have attributed reserves or resources.

Unbooked locations consist of drilling locations that have been identified by management as an estimation of our multi-year drilling activities based on evaluation of applicable geologic, seismic, engineering, production and reserves information. There is no certainty that we will drill all of these drilling locations and if drilled there is no certainty that such locations will result in additional oil and gas reserves, resources or production. The drilling locations on which we drill wells will ultimately depend upon the availability of capital, regulatory approvals, seasonal restrictions, oil and natural gas prices, costs, actual drilling results, additional reservoir information that is obtained and other factors. While certain of the unbooked drilling locations have been de-risked by drilling existing wells in relative close proximity to such unbooked drilling locations, other unbooked drilling locations are farther away from existing wells where management has less information about the characteristics of the reservoir and therefore there is more uncertainty whether wells will be drilled in such locations and if drilled there is more uncertainty that such wells will result in additional oil and gas reserves, resources or production.

Production, Initial Production Rates & Product Type Information

References to petroleum, crude oil, natural gas liquids ("NGLs"), natural gas and average daily production in this press release refer to the light and medium crude oil, tight crude oil, conventional natural gas, shale gas and NGLs product types, as applicable, as defined in National Instrument 51-101 ("NI 51-101"), except as noted below. 

NI 51-101 includes condensate within the NGLs product type. The Company has disclosed condensate as combined with crude oil and separately from other NGLs since the price of condensate as compared to other NGLs is currently significantly higher and the Company believes that this crude oil and condensate presentation provides a more accurate description of its operations and results therefrom. Crude oil therefore refers to light oil, medium oil, tight oil and condensate. NGLs refers to ethane, propane, butane and pentane combined. Natural gas refers to conventional natural gas and shale gas combined.

SPECIFIED FINANCIAL MEASURES

This press release includes various specified financial measures, including non-GAAP financial measures, non-GAAP ratios, capital management measures and supplementary financial measures as further described herein. These financial measures are not standardized financial measures under International Financial Reporting Standards ("IFRS" or, alternatively, "GAAP") and, therefore, may not be comparable with the calculation of similar financial measures disclosed by other companies.

"Acquisition Capital"  and  "Development Capital"  are non-GAAP financial measures and , "F&D Costs", "FD&A Costs"  and  "recycle ratio"  are non-GAAP ratios. See "Oil and Gas Metrics".

"Average realized prices"  for crude oil, NGLs and natural gas are supplementary financial measures calculated by dividing each of these components of petroleum and natural gas revenues, disclosed in Note 16 "Revenue" to the Company's audited annual consolidated financial statements for the year ended December 31, 2024, by their respective production volumes for the period.

"Operating netback ($/boe)"  is a non-GAAP ratio calculated by dividing operating netbacks by the total production for the period. Operating netback is a non-GAAP financial measure component of operating netback per boe. Operating netback per boe is not a standardized financial measure under IFRS and, therefore may not be comparable with the calculation of similar financial measures disclosed by other entities. Presenting operating netback on a per boe basis allows management to better analyze performance against prior periods on a comparable basis.

"Petroleum and natural gas revenues ($/boe)", "Tariffs ($/boe)", "Processing and other income ($/boe)" and "Marketing revenues ($/boe)"  are supplementary financial measures calculated by dividing each of these components of petroleum and natural gas sales, disclosed in Note 16 "Revenue" to the Company's audited annual consolidated financial statements for the year ended December 31, 2024, by the Company's total production volumes for the period.

"Per boe" or "($/boe)"  disclosures for petroleum and natural gas sales, royalties, operating expenses, transportation expenses and marketing expenses are supplementary financial measures that are calculated by dividing each of these respective GAAP measures by the Company's total production volumes for the period.

Forward-looking Information and Statements

The information in this news release contains certain forward-looking statements. These statements relate to future events or our future performance. All statements other than statements of historical fact may be forward-looking statements. Forward-looking statements are often, but not always, identified by the use of words such as "seek", "anticipate", "plan", "continue", "estimate", "approximate", "expect", "may", "will", "project", "predict", "potential", "targeting", "intend", "could", "might", "should", "believe", "would" and similar expressions. These statements involve substantial known and unknown risks and uncertainties, certain of which are beyond the Company's control, including: the impact of the COVID-19 pandemic on the Company's business and operations (and the duration of the impacts thereof). the inability of the Company to meet its commitments on its lands or on the lands it may acquire, the impact of general economic conditions; industry conditions; changes in laws and regulations including the adoption of new environmental laws and regulations and changes in how they are interpreted and enforced; fluctuations in commodity prices and foreign exchange and interest rates; stock market volatility and market valuations; volatility in market prices for oil and natural gas; liabilities inherent in oil and natural gas operations; uncertainties associated with estimating oil and natural gas reserves, changes in income tax laws or changes in tax laws and incentive programs relating to the oil and gas industry; geological, technical, drilling and processing problems and other difficulties in producing petroleum reserves; and obtaining required approvals of regulatory authorities. The Company's actual results, performance or achievement could differ materially from those expressed in, or implied by, such forward-looking statements and, accordingly, no assurances can be given that any of the events anticipated by the forward-looking statements will transpire or occur or, if any of them do, what benefits the Company will derive from them. These statements are subject to certain risks and uncertainties and may be based on assumptions that could cause actual results to differ materially from those anticipated or implied in the forward-looking statements. The forward-looking statements in this news release are expressly qualified in their entirety by this cautionary statement. Except as required by law, the Company undertakes no obligation to publicly update or revise any forward-looking statements. Investors are encouraged to review and consider the additional risk factors set forth in the Company's continuous disclosure documents which are available on SEDAR at www.sedarplus.ca .

Oil and Gas Advisories

Reserves Estimates

The estimates of reserves and future net revenue for individual properties may not reflect the same confidence level as estimates of reserves and future net revenue for all properties, due to the effects of aggregation.

Non-GAAP Measurements

The Company utilizes certain measurements that do not have a standardized meaning or definition as prescribed by International Financial Reporting Standards (" IFRS ") and therefore may not be comparable with the calculation of similar measures by other entities, including but not limited to operating netback, cash flow and working capital. Readers are referred to advisories and further discussion on non-GAAP measurements contained in the Company’s continuous disclosure documents.  Operating netback is a non‐GAAP measure calculated as the average per boe of the Company's oil and gas sales, less royalties and operating costs.

Neither the TSX Venture Exchange nor its Regulation Service Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

NOT FOR DISTRIBUTION IN THE UNITED STATES OR DISSEMINATION IN THE UNITED STATES

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