Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (U.S. GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The most significant estimates pertain to proved natural gas reserves and related cash flow estimates used in impairment tests of oil and natural gas and gathering system properties, asset retirement obligations, accrued natural gas and oil revenues and operating expenses, accrued gathering system revenues and operating expenses, as well as the valuation of commodity derivative instruments. Actual results could differ from those estimates.

Oil and Natural Gas Properties

Epsilon accounts for its crude oil and natural gas exploration and production activities under the successful efforts method of accounting.

Oil and natural gas lease acquisition costs are capitalized when incurred. Unproved properties with acquisition costs that are not individually significant are aggregated. If the unproved properties are determined to be productive, the appropriate related costs are transferred to proved oil and natural gas properties. Lease delay rentals are expensed as incurred.

Oil and natural gas exploration costs, other than the costs of drilling exploratory wells, are expensed as incurred. The costs of drilling exploratory wells are capitalized pending determination of whether Epsilon has discovered proved commercial reserves. If proved commercial reserves are not discovered, such drilling costs are expensed. In some circumstances, it may be uncertain whether proved commercial reserves have been discovered when drilling has been completed. Such exploratory well drilling costs may continue to be capitalized if the reserve quantity is sufficient to justify its completion as a producing well and sufficient progress in assessing the reserves and the economic and operating viability of the project is being made. Costs to develop proved reserves, including the costs of all development wells and related equipment used in the production of crude oil and natural gas, are capitalized (see Note 5).

Depreciation, depletion and amortization of the cost of proved oil and natural gas properties is calculated using the unit-of-production method. The reserve base used to calculate depreciation, depletion and amortization for leasehold acquisition costs and the cost to acquire proved properties is the sum of proved developed reserves and proved undeveloped reserves. With respect to lease and well equipment costs, which include development costs and successful exploration drilling costs, the reserve base includes only proved developed reserves.

When circumstances indicate that proved (developed and undeveloped) oil and natural gas properties may be impaired, Epsilon compares expected undiscounted future cash flows at a depreciation, depletion and amortization group level to the carrying value of the asset. If the expected undiscounted future cash flows, based on Epsilon’s estimate of future crude oil and natural gas prices, operating costs, anticipated production from proved reserves and other relevant data, are lower than the carrying value of the asset, the capitalized cost is reduced to fair value. Fair value is generally calculated using the Income Approach which considers estimated discounted future cash flows. Unproved oil and gas property costs are evaluated for impairment and reduced to fair value when there is an indication that the carrying costs may not be recoverable.

Revenue Recognition

Revenues are comprised primarily of sales of natural gas, crude oil and NGLs, along with the revenue generated from the Company’s ownership interest in the gas gathering system in the Auburn field in Pennsylvania.

Revenue recognition is evaluated through the following five steps: (i) identification of the contract, or contracts, with a customer; (ii) identification of the performance obligations in the contract; (iii) determination of the transaction

price; (iv) allocation of the transaction price to the performance obligations in the contract; and (v) recognition of revenue when or as a performance obligation is satisfied.

Accounting Policies

Revenue is recognized when performance obligations under the terms of a contract with a customer are satisfied. The Company recognizes upstream revenue at the point in time when control has been transferred to the customer, generally at the time natural gas reaches an agreed-upon delivery point and collectability is reasonably assured. Upstream revenue is based upon a fixed price, based on market pricing, and is measured as the amount of consideration the Company expects to receive in exchange for the transferring of the natural gas and oil. The services provided by the gas gathering system take place continuously and as a practical expedient, the revenues are recognized monthly for the volumes that are processed and transported for the upstream producers during that period of time. Revenue for the services performed are based on the rates outlined in the Anchor Shipper Gas Gathering Agreement for Northern Pennsylvania (the “ASGGA”) effective January 1, 2024 that governs all volumes gathered and processed by the system. The gathering rate is fixed, but is adjusted annually by the Consumer Price Index for All Urban Consumers (“CPI-U”) as published by US Bureau of Labor Statistics. Typically, the Company sells its natural gas directly to customers, under agreements with payment terms less than 30 days after delivery and 60 days on the revenue generated by the gas gathering system. For operated assets in Wyoming, payment is received within 30 days after the end of a month for oil and 60 days after the end of the month for natural gas and NGLs.

Natural Gas Revenues

The Company’s natural gas purchase contracts are generally structured such that Epsilon commits and dedicates for sale its proportionate share of natural gas production per day to a purchaser. Natural gas is sold at market prices. Control transfers at the delivery point specified in the contract, which typically is stated as the inlet of the third-party sales transportation pipeline. The Company recognizes revenue proportionate to its entitled share of volumes sold. Currently, the vast majority of Epsilon’s natural gas production comes from the Appalachian Basin in Pennsylvania.

Epsilon uses a third-party service for its natural gas marketing. In this capacity, the third-party is responsible for carrying out marketing activities such as submission of nominations, receipt of payments, submission of invoices and negotiation of contracts. Commissions payable to the third-party broker for these services are treated as lease operating expenses in the financial statements.

For the Company’s operated assets in Wyoming, revenues from the sale of natural gas and NGLs are recognized, as the product is delivered to the customers’ custody transfer points and collectability is reasonably assured. The Company fulfills the performance obligations under the customer contracts through daily delivery of natural gas and NGLs to the customers’ custody transfer points. Revenues are recorded on a monthly basis using the prices received under the Company’s contracts. These contracts are generally derived from stated market prices which are adjusted to reflect deductions, including transportation, fractionation and processing. As a result, the revenues from the sale of natural gas and NGLs are subject to change with the increase or decrease in market prices. As a result, the sale of natural gas and NGLs, as presented on the consolidated statements of operations, represent the Company’s share of revenues, net of gathering and processing costs, net of royalties and excluding revenue interests owned by others. When selling natural gas and NGLs on behalf of royalty owners or working interest owners, the Company acts as an agent and therefore reports the revenue on a net share basis. To the extent actual volumes and prices of natural gas sales are unavailable for a given reporting period because of timing or information not received from third parties, the expected sales volumes and prices for those properties are estimated and recorded. Historically, differences between revenue estimates and actual revenue received have not been significant.

The majority of product sale commitments of the Company are short term in nature with a contractual term of one year or less. For these contracts, the Company applies the practical expedient in Accounting Standards Codification (“ASC”) 606-10-50-14, which exempts entities from disclosing the transaction price allocated to remaining performance obligations, if any, if the performance obligation is part of a contract that has an original expected duration of one year or less.

For contracts with terms greater than one-year, the Company does not disclose the value of unsatisfied performance obligations under its contracts with customers as it applies the practical expedient in ASC 606-10-50-14A,

which applies to variable consideration that is recognized as control of the product is transferred to the customer. Since each unit of product represents a separate performance obligation, future volumes are wholly unsatisfied, and disclosure of the transaction price allocated to remaining performance obligations is not required.

Gas Gathering System Revenue

The Company has a 35% ownership interest in the Auburn GGS. This system aggregates the natural gas from the various pads in the field and transports the natural gas to the inlet of the Auburn CF where it is dehydrated, compressed and injected into the Tennessee Gas Pipeline. The gathering and compression services operate under fee-based contracts. The producers in the area served by the gathering system pay fees to the system owners based on the services provided to them in getting their share of the gas production to the third-party sales transmission point. Revenue is recognized over time as the services are provided.

Oil and Natural Gas Liquids Revenue

The source of the Company’s oil and natural gas liquids revenue is its ownership in wells in Wyoming, the Permian Basin, and Alberta, Canada.  With the exception of Wyoming, the Company does not operate the wells and has elected not to receive its proportionate share of the production.  As such, under the Joint Operating Agreement, the operators have control of the marketing of this production at current market prices and remits our net revenue interest less taxes and fees on a monthly basis. The Company recognizes revenue with a monthly accrual of its proportionate share of volumes produced at an estimated market price.

For the Company’s operated assets in Wyoming, revenue from the sale of oil and natural gas liquids are recognized, as the product is delivered to the customers’ custody transfer points and collectability is reasonably assured. The Company fulfills the performance obligations under the customer contracts through daily delivery of oil and natural gas liquids to the customers’ custody transfer points. Revenues are recorded on a monthly basis using the prices received under the Company’s contracts. These contracts are generally derived from stated market prices which are adjusted to reflect deductions, including transportation, fractionation and processing. As a result, the revenues from the sale of oil and natural gas liquids are subject to change with the increase or decrease in market prices. As a result, the sales of oil and natural gas liquids, as presented on the consolidated statements of operations, represent the Company’s share of revenues, net of gathering and processing costs, net of royalties and excluding revenue interests owned by others. When selling oil and natural gas liquids on behalf of royalty owners or working interest owners, the Company acts as an agent and therefore reports the revenue on a net share basis. To the extent actual volumes and prices of oil and natural gas liquids sales are unavailable for a given reporting period because of timing or information not received from third parties, the expected sales volumes and prices for those properties are estimated and recorded. Historically, differences between revenue estimates and actual revenue received have not been significant.

The majority of product sale commitments of the Company are short term in nature with a contractual term of one year or less. For these contracts, the Company applies the practical expedient in Accounting Standards Codification (“ASC”) 606-10-50-14, which exempts entities from disclosing the transaction price allocated to remaining performance obligations, if any, if the performance obligation is part of a contract that has an original expected duration of one year or less.

For contracts with terms greater than one-year, the Company does not disclose the value of unsatisfied performance obligations under its contracts with customers as it applies the practical expedient in ASC 606-10-50-14A, which applies to variable consideration that is recognized as control of the product is transferred to the customer. Since each unit of product represents a separate performance obligation, future volumes are wholly unsatisfied, and disclosure of the transaction price allocated to remaining performance obligations is not required.

Accounts Receivable

Oil, natural gas liquid and natural gas receivables consist of amounts due from purchasers or operators for commodity sales from our revenue interest in the leases in Pennsylvania, Wyoming, the Permian Basin, and Alberta, Canada. Payments from purchasers are typically due by the last day of the month following the month of delivery. Gathering fee revenue consists of fees due from the operator of the Auburn GGS, as an agent for the Company fulfilling the operations of the gathering system. Payments from the operator are typically due 60 days from the last day of the month

of transmission. The Company’s operations do not result in any contract assets or liabilities on the accompanying consolidated balance sheets.

For its operated assets in Wyoming, the Company accrues for oil, natural gas and natural gas liquids sales based on actual production dates. These are due within 45 days of production for oil and 60 days for natural gas and other liquids. To the extent the Company has joint interest owners in properties, joint interest billings represent monthly billings to working interest owners in the properties the Company operates. Joint interest billings are due within 30 days, with a right of offset against revenues due to working interest owners in the respective properties. The Company monitors the creditworthiness of its counterparties by reviewing credit ratings, financial statements, and payment history.

Financial Instruments and Fair Value

Epsilon’s financial instruments consist of cash and cash equivalents, restricted cash, commodity derivative contracts, accounts receivable, accounts payable, and long term debt.

The Company classifies the fair value of financial instruments according to the following hierarchy based on the amount of observable inputs used to value the instrument.

Level 1—Quoted prices are available in active markets for identical assets or liabilities as of the reporting date. Active markets are those in which transactions occur in sufficient frequency and volume to provide pricing information on an ongoing basis.

Level 2—Pricing inputs are other than quoted prices in active markets included in Level 1. Prices in Level 2 are either directly or indirectly observable as of the reporting date. Level 2 valuations are based on inputs, including quoted forward prices for commodities, time value and volatility factors, which can be substantially observed or corroborated in the marketplace.

Level 3—Valuations in this level are those with inputs for the asset or liability that are not based on observable market data. The Company makes its own assumptions about how market participants would price the assets and liabilities.

Cash, restricted cash, accounts receivable, and accounts payable are carried at cost, which approximates fair value because of the short term maturity of these instruments. Cash equivalents are carried at fair value. The Company’s revolving line of credit has a recorded value that approximates its fair value since its variable interest rate is tied to current market rates and the applicable margins represent market rates. The revolving line of credit is classified within Level 2 of the fair value hierarchy.

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Commodity derivative instruments consist of NYMEX HH and NYMEX WTI CMA swaps and options as well as basis swap contracts for natural gas. The Company’s derivative contracts are valued based on a marked to market approach. These assumptions are observable in the marketplace throughout the full term of the contract, can be derived from observable data or are supported by observable levels at which transactions are executed in the marketplace, and are therefore designated as Level 2 within the valuation hierarchy. The Company utilizes its counterparties’ valuations to assess the reasonableness of its own valuations.

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Asset Retirement Obligations

The Company records a liability for asset retirement obligations at fair value in the period in which the liability is incurred if a reasonable estimate of fair value can be made. The associated asset retirement cost is capitalized as part of the carrying amount of the long-lived asset. Subsequently, the asset retirement cost is allocated to expense using a systematic and rational method of the asset’s useful life. Recognized asset retirement obligations relate to the plugging and abandonment of oil and natural gas wells and decommissioning of the gas gathering system. Management reviews the estimates of the timing of well abandonments as well as the estimated plugging and abandonment costs, which are discounted at the credit adjusted risk free rate. These adjustments are recorded to the asset retirement obligations with an offsetting change to oil and gas properties. An ongoing accretion expense is recognized for changes in the value of the liability as a result of the forecast inflation due to the passage of time, which is recorded in depreciation, depletion, amortization, and accretion expense in the consolidated statements of operations and comprehensive income.

Geographic Locations of Operations

Approximately 67% and 50% of our revenue during fiscal years 2025 and 2024, respectively, was derived from natural gas production and gathering system revenues in the state of Pennsylvania. Approximately 19% and 40% of our revenue during fiscal year 2025 and 2024, respectively, was derived from oil, natural gas, and natural gas liquids revenues in the state of Texas.

As a result of this geographic concentration, we may be disproportionately exposed to the effect of regional supply and demand factors, delays or interruptions of production from wells in this area caused by governmental regulation, processing or transportation capacity constraints, market limitations, weather events or interruption of the processing or transportation of crude oil or natural gas.

Foreign Currency Transactions

Even though the Canadian dollar is the functional currency of Epsilon Energy Ltd. (the parent entity), the United States dollar is the reporting currency for all of Epsilon’s consolidated subsidiaries. Any gains or losses on transactions or monetary assets or liabilities in currencies other than the functional currency are included in net income in the current period. Gains and losses on translation of balances denominated in Canadian dollars, calculated using the end of the period exchange rate, are included in accumulated other comprehensive income.

Leases

The Company leases office space to be used for general, administrative, and executive offices with terms typically ranging from five to seven years, subject to certain renewal options as applicable. The Company considers renewal or termination options that are reasonably certain to be exercised in the determination of the lease term and initial measurement of lease liabilities and right-of-use assets. Lease expense for operating lease payments is recognized on a straight-line basis over the lease term. Interest expense for finance leases is incurred based on the carrying value of the lease liability. Leases with an initial term of 12 months or less are not recorded on the Company’s Consolidated Balance Sheets and lease agreements with lease and non-lease components are generally accounted for as a single lease component.

The Company determines whether a contract is, or contains, a lease at inception of the contract and whether that lease meets the classification criteria of a finance or operating lease. When available, the Company uses the rate implicit in the lease to discount lease payments to present value; however, most of the Company’s leases do not provide a readily determinable implicit rate. Therefore, the Company must discount lease payments based on an estimate of its incremental borrowing rate based on prevailing financial market conditions at the later of date of adoption or lease commencement, credit analysis of comparable companies and management judgments to determine the present values of its lease payments (see Note 12).

Deferred Financing Costs

The Company has deferred financing costs - upfront fees and expenses that include origination, underwriting, legal and other fees – that were incurred to secure our revolving credit facility. The fees are amortized using the straight-line method, which approximates the effective interest method, over the life of the credit facility and are recognized in our consolidated statements of operations as interest expense. The unamortized deferred financing costs related to the credit facility are reported in the consolidated balance sheets as Deferred financing costs in non-current assets.

Recently Issued Accounting Standards

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires public entities, on an annual basis, to disclose disaggregated information about a reporting entity’s effective tax rate reconciliation, using both percentages and reporting currency amounts for specific standardized categories, as well as disclosure of income taxes paid disaggregated by jurisdiction. Effective January 1, 2025, the Company adopted ASU 2023‑09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The amendments enhance income tax disclosures, primarily related to the effective tax rate reconciliation and income taxes paid.  The Company adopted the amendments on a prospective basis. The adoption did not have a material impact on the Company’s consolidated financial statements, as the amendments relate primarily to expanded disclosures and do not change the recognition or measurement of income taxes. Because the amendments were adopted prospectively, the enhanced disclosures required by ASU 2023‑09 are provided for the year ended December 31, 2025. Prior‑year disclosures continue to be presented in accordance with the Company’s previously applied accounting guidance. See Note 9 “Income Taxes” in the Notes to Consolidated Financial Statements.

In March 2024, the FASB issued ASU No. 2024-01, Compensation – Stock Compensation (Topic 718): Scope Applications of Profits Interest and Similar Awards (“ASU 2024-01”). The amendments in ASU 2024-01 improves its overall clarity and operability without changing the guidance and adding illustrative examples to determine whether profits interest award should be accounted for in accordance with Topic 718. The guidance is effective for fiscal years beginning after December 15, 2024, and interim periods within those annual periods. The Company has adopted ASU No. 2024-01 as of December 31, 2025 with no material impact.

In November 2024, the FASB issued ASU 2024-3 "Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures." The ASU will improve the decision usefulness for investors by requiring public business entities to disclose more detailed information about their expenses such as (a) inventory and manufacturing expense, (b) employee compensation, (c) depreciation, (d) intangible asset amortization, etc. The amendments will be effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. The amendments will be applied prospectively with an option for a retrospective application. The Company is evaluating the impact of this new standard and believes that the adoption will result in additional disclosures, but will not have any other impact on its consolidated financial statements.

In July 2025, the FASB issued ASU 2025-05, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit losses for Accounts Receivable and Contract Assets. The amendments in this update provide (1) all entities with a practical expedient to assume that current conditions as of the balance sheet date do not change for the remaining life of the assets and (2) entities other than public business entities with an accounting policy election to consider collection activity after the balance sheet date when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under Topic 606. The amendments will be effective for fiscal years beginning after December 15, 2025, with early adoption permitted. The Company is evaluating the impact of this new standard and believes that the adoption may result in additional disclosures, but will not have any material impact on its consolidated financial statements.