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Calgary, Alberta (August 31, 2026) – TheNewswire - Decimus Oil Corp. (“Decimus” or the “Company”) (TSXV:WCSB) announces its financial and operating results for the three and six months ended June 30, 2026. The associated management’s discussion and analysis (“ MD&A ”) and unaudited interim financial statements for the three and six months ended June 30, 2026, can be found at www.sedarplus.ca and www.decimusoil.com .

The Company’s key achievements in the second quarter of 2026 included the following:

• Average production of 154 boe/d ( 37 % Oil NGLs) in Q2/26, a 7% decrease when compared to 165 boe/d in Q1/26 and decreased by 13% from 176 boe/d when compared to Q2/25.  

• Revenue in Q2/26 was $643,546, an 8% increase from Q1/26 revenue of $593,423, due primarily to a 16% increase in combined commodity prices offset by 7% decrease in production.  

• Net production expenses increased by 36% to $647,122 in Q2/26 from $474,919 in Q1/26 and increased by 45% on a per boe basis to $46.31/boe in Q2/26 from $31.89/boe in Q1/26.  

• Adjusted funds flow (“AFF” see “Non-IFRS Financial Measures”) was a deficit of $336,892 in Q2/26 compared to a deficit of $199,775 when compared to Q2/25.  

• Operating netbacks on a per boe basis decreased in Q2/26 to a deficit ($9.69)/boe from $5.76/boe in Q1/26. The decrease was driven by a 175% increase in royalty expenses per boe, a 45% increase in net production expenses per boe, and a realized loss on derivatives of negative $3.40/boe compared to $nil/boe in Q1/26, partially offset by a 16% increase in average realized sales to $46.06/boe in Q2/26 from $39.85/boe in Q1/26.  

The following table summarizes the Company’s financial and operating results for the three and six months ended June 30, 2026.

Selected Quarterly Information

1. Capital Management Measure; See “Non-IFRS Financial Measures, Non-IFRS Financial Ratios and Capital Management Measures” Section of the Company’s MDA.  

2. Non-IFRS Financial Ratio; See “Non-IFRS Financial Measures, Non-IFRS Financial Ratios and Capital Management Measures” Section of the Company’s MDA.  

3. Total oil, natural gas and processing revenue includes processing income of $(9,147) for the three months ended June 30, 2026 (2025 – $34,078) and $12,326 for the six months ended June 30, 2026 (2025 – $60,033). Oil, natural gas and NGL revenue, before processing income, was $643,546 and $1,236,969 for the three and six months ended June 30, 2026, respectively.  

“The second quarter showed both the leverage in our asset base and the work ahead of us. Realized pricing rose 20% year over year to $46.06 per boe, with oil averaging $112.57 per barrel – the strongest price environment we have operated in for years. That gain was more than offset by unplanned downtime at our Vulcan, Hays and Swan Hills properties, which reduced production to 154 boe/d, and by higher repair and maintenance costs that pushed net production expense to $46.31 per boe, producing a negative operating netback and an adjusted funds flow deficit of $336,892.

“We are concentrating on preserving liquidity and cutting costs to improve netbacks while we continue to evaluate opportunities to add production,” said Cameron MacDonald, President & CEO of Decimus Oil Corp.

Corporate Presentation and Additional Information

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 please contact:

Cameron MacDonald

President & CEO
Phone: (403) 585-9875

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’s strategy is to build a portfolio of long-term, low-decline, high-netback producing assets with meaningful drilling development and enhanced oil and natural gas recovery upside. Decimus is focused on Mannville development in Southern Alberta, where it is advancing a low-risk acquisition strategy and deploying modern completion techniques to develop underexploited drilling opportunities and unlock significant resource in place.

Non-IFRS Financial Measures, Non-IFRS Financial Ratios and Capital Management Measures

This news release refers to adjusted funds flow, operating netback and working capital deficit, which are non-IFRS financial measures, non-IFRS financial ratios or capital management measures and are not standardized financial measures under IFRS Accounting Standards. These measures may not be comparable to similar measures presented by other issuers and should not be considered in isolation from, or as an alternative to, measures prepared in accordance with IFRS. See “Non-IFRS Financial Measures, Non-IFRS Financial Ratios and Capital Management Measures” in the Company’s management’s discussion and analysis for the three and six months ended June 30, 2026, available on SEDAR+ at www.sedarplus.ca, for an explanation of the composition of each measure and the applicable reconciliations to the most directly comparable IFRS measure, which disclosure is incorporated by reference into this news release.

Oil and Gas Advisory

Barrels of oil equivalent (“boe”) may be misleading, particularly if used in isolation. A boe conversion ratio of six thousand cubic feet of natural gas to one barrel of oil 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 based on the current price of crude oil as compared to natural gas is significantly different from the energy equivalency of 6:1, utilizing a conversion ratio of 6:1 may be misleading as an indication of value.

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 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

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.

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