Summary of Significant Accounting Policies	12 Months Ended
Sep. 30, 2015
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 1 – Summary of Significant Accounting Policies General Business and Nature of Operations ERHC Energy Inc. ("ERHC", the “Company”) is an independent oil and gas company formed in 1986, as a Colorado corporation. The Company’s current focus is to exploit its primary assets, which are rights to working interests in exploration acreage in the Republic of Kenya (“Kenya”), in the Republic of Chad ("Chad"), in the Joint Development Zone (“JDZ”) between the Democratic Republic of Sao Tome and Principe (“DRSTP”), in the Federal Republic of Nigeria (“FRN”) and in the exclusive waters of Sao Tome (the “Exclusive Economic Zone” or “EEZ”). The Company has formed relationships with upstream oil and gas companies to assist the Company in exploiting its assets in the JDZ as further described in Note 5. ERHC currently has no other operations. Principles of Consolidation The consolidated financial statements include the accounts of ERHC and its wholly owned subsidiaries, after elimination of all significant inter-company accounts and transactions. Use of Estimates The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles. In preparing the consolidated financial statements, management is required 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 revenues and expenses during the reporting period for the years then ended. Actual results could differ significantly from those estimates. Concentration of Risks ERHC primarily maintains its finances with seven financial institutions. From time to time the amount on deposit in one or all of these institutions may exceed federal insurance limits. The balances are maintained in demand accounts to minimize risk. ERHC’s focus is to exploit its assets which are agreements with the Government of Kenya concerning oil and gas exploration in Kenya, with the Government of Chad concerning oil and gas exploration in Chad, with the DRSTP concerning oil and gas exploration in EEZ and with the JDA concerning oil and gas exploration in the JDZ. In the past, ERHC has formed relationships with Sinopec International Petroleum Exploration and Production Corporation Nigeria (“Sinopec”), and Addax Energy Nigeria Limited (“Addax Ltd.”) to assist ERHC in leveraging its interests in the JDZ. ERHC currently has no other operations. Going Concern The accompanying financial statements have been prepared on the basis that the Company will continue as a going concern which contemplates the realization of assets and the satisfaction of liabilities in the ordinary and usual course of business. As of September 30, 2015, the Company has a working capital deficit and negative cash flows from operating activities. These conditions raise substantial doubt about the Company’s ability to continue as a going concern. The ability of the Company to continue as a going concern is dependent on raising additional capital to fund ongoing exploration projects and ultimately on attaining future profitable operations. The Company is continuing with its plan to further seek new opportunity for farm-out its assets in Kenya, Chad and the Săo Tomé and Príncipe Exclusive Economic Zone. Management believes that the Company’s current operating strategy will provide the opportunity for the Company to continue as a going concern as long as the Company continues to obtain additional financing; however there is no assurance that this will occur. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. Cash Equivalents ERHC considers all highly liquid short-term investments with an original maturity of three months or less, when purchased, to be cash equivalents. Investment in Oando Energy Resources (OER) The Company's investments in common stock and warrants are carried at market value. Both stocks and warrants are accounted for as available for sale securities, and changes in their fair value are recognized in other comprehensive income (loss). Furniture, Fixtures and Equipment Furniture, fixtures and equipment are stated at cost and include expenditures for renewals and improvements and capitalized interest. Maintenance and repairs are charged to current operations. When property is retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the respective accounts, and any gain or loss on disposition is included in income. Depreciation is provided principally on the straight-line method over the estimated service lives of the assets. In general, office furniture is depreciated over 7 years, office equipment over 5 years and computer equipment over 3 years. Successful Efforts ERHC uses the successful efforts method of accounting for oil and gas producing activities. Under this method, acquisition costs for proved and unproved properties are capitalized when incurred. Exploration costs, including geological and geophysical costs, the costs of carrying and retaining unproved properties and exploratory dry hole drilling costs, are expensed. Development costs, including the costs to drill and equip development wells and successful exploratory drilling costs to locate proved reserves are capitalized. Exploratory drilling costs are capitalized when incurred pending the determination of whether a well has found proved reserves. A determination of whether a well has found proved reserves is made after drilling is completed. The determination is based on a process that relies on interpretations of available geologic, geophysics, and engineering data. If a well is determined to be successful, the capitalized drilling costs will be reclassified as part of the cost of the well. If a well is determined to be unsuccessful, the capitalized drilling costs will be charged to expense in the period the determination is made. If an exploratory well requires a major capital expenditure before production can begin, the cost of drilling the exploratory well will continue to be carried as an asset pending determination of whether proved reserves have been found only as long as: i) the well has found a sufficient quantity of reserves to justify its completion as a producing well if the required capital expenditure is made and ii) drilling of the additional exploratory wells is under way or firmly planned for the near future. If drilling in the area is not under way or firmly planned, or if the well has not found a commercially producible quantity of reserves, the exploratory well is assumed to be impaired, and its costs are charged to expense. In the absence of a determination as to whether the reserves that have been found can be classified as proved, the costs of drilling such an exploratory well is not carried as an asset for more than one year following completion of drilling. If, after that year has passed, a determination that proved reserves exist cannot be made, the well is assumed to be impaired, and its costs are charged to expense. Its costs can, however, continue to be capitalized if sufficient quantities of reserves are discovered in the well to justify its completion as a producing well and sufficient progress is made in assessing the reserves and the well’s economic and operating feasibility. The impairment of unamortized capital costs is measured at a lease level and is reduced to fair value if it is determined that the sum of expected future net cash flows is less than the net book value. ERHC determines if impairment has occurred through either adverse changes or as a result of the annual review of all fields. Development costs of proved oil and gas properties, including estimated dismantlement, restoration and abandonment costs and acquisition costs, are depreciated and depleted on a field basis by the units-of-production method using proved developed and proved reserves, respectively. The costs of unproved oil and gas properties are generally combined and impaired over a period that is based on the average holding period for such properties and the Company’s experience of successful drilling. Impairment of Long-lived Assets ERHC evaluates the recoverability of long-lived assets when events and circumstances indicate that such assets might be impaired. ERHC determines impairment by comparing the undiscounted future cash flows estimated to be generated by these assets to their respective carrying amounts. Impairments are charged to operations in the period to which events and circumstances indicate that such assets might be impaired. ERHC has evaluated its investments located in Republic Kenya, Republic of Chad and in its DRSTP concession fee in light of its 2003 Option Agreement (see Note 5 and there have been no events or circumstances that would indicate that such assets might be impaired). Income Taxes Income taxes are accounted for under the assets and liability method. Under this method, the deferred tax assets and liabilities are estimated based upon the difference between the financial statement and tax bases of assets and liabilities using tax rates in effect for the year in which the Company expects the differences to affect taxable income. The tax consequences of most events recognized in the current year’s financial statements are included in determining income taxes currently payable. However, because tax laws and financial accounting standards differ in their recognition and measurement of assets, liabilities, equity, revenues, expenses, gains and losses, differences arise between the amount of taxable income and pretax financial income for a year and between the tax bases of assets or liabilities and their reported amounts in the financial statements. Because the Company assumes that the reported amounts of assets and liabilities will be recovered and settled, respectively, a difference between the tax basis of an asset or a liability and its reported amount in the balance sheet will result in a taxable or a deductible amount in some future years when the related liabilities are settled or the reported amounts of the assets are recovered, which gives rise to a deferred tax asset. The Company must then assess the likelihood that the deferred tax assets will be recovered from future taxable income and to the extent the Company believes that recovery is not likely, the Company must establish a valuation allowance. The Company estimates the provision for income taxes based on income before income taxes for each tax jurisdiction in which the Company has established operations. The Company does not provide incremental U.S. income taxes on un-remitted foreign earnings taxed at rates less than the U.S. tax rates as such earnings are considered permanently invested. The Company follows the FASB guidance on accounting for uncertainty in income taxes which provides a financial statement recognition threshold and measurement attribute for a tax position taken or expected to be taken in a tax return. Under this guidance, the Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position should be measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. The guidance also extends to de-recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, accounting for interest and penalties associated with tax positions, and income tax disclosures. Net Loss Per Share Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted loss per share is computed by dividing net loss by the weighted average number of shares outstanding, after giving effect to potentially dilutive common share equivalents outstanding during the period. Potentially dilutive common share equivalents are not included in the computation of diluted loss per share if they are anti-dilutive. Diluted loss per common share is the same as basic for all periods presented because the effect of potentially dilutive common shares arising from outstanding stock warrants and options was anti-dilutive. For the years ended September 30, 2015 and 2014, potential dilutive securities had an anti-dilutive effect and were not included in the calculation of diluted net loss per common share. Stock-based Compensation ERHC recognizes compensation costs resulting from the issuance of stock-based awards to employees and directors over the requisite period based on the fair value of each stock award on the grant date. Recent Accounting Pronouncements There have been no recently issued accounting pronouncements that have had or are expected to have a material impact on the Company based on the financial statements.

Note 1 – Summary of Significant Accounting Policies

General Business and Nature of Operations

ERHC Energy Inc. ("ERHC", the “Company”) is an independent oil and gas company formed in 1986, as a Colorado corporation. The Company’s current focus is to exploit its primary assets, which are rights to working interests in exploration acreage in the Republic of Kenya (“Kenya”), in the Republic of Chad ("Chad"), in the Joint Development Zone (“JDZ”) between the Democratic Republic of Sao Tome and Principe (“DRSTP”), in the Federal Republic of Nigeria (“FRN”) and in the exclusive waters of Sao Tome (the “Exclusive Economic Zone” or “EEZ”). The Company has formed relationships with upstream oil and gas companies to assist the Company in exploiting its assets in the JDZ as further described in Note 5. ERHC currently has no other operations.

Principles of Consolidation

The consolidated financial statements include the accounts of ERHC and its wholly owned subsidiaries, after elimination of all significant inter-company accounts and transactions.

Use of Estimates

The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles. In preparing the consolidated financial statements, management is required 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 revenues and expenses during the reporting period for the years then ended. Actual results could differ significantly from those estimates.

Concentration of Risks

ERHC primarily maintains its finances with seven financial institutions. From time to time the amount on deposit in one or all of these institutions may exceed federal insurance limits. The balances are maintained in demand accounts to minimize risk.

ERHC’s focus is to exploit its assets which are agreements with the Government of Kenya concerning oil and gas exploration in Kenya, with the Government of Chad concerning oil and gas exploration in Chad, with the DRSTP concerning oil and gas exploration in EEZ and with the JDA concerning oil and gas exploration in the JDZ. In the past, ERHC has formed relationships with Sinopec International Petroleum Exploration and Production Corporation Nigeria (“Sinopec”), and Addax Energy Nigeria Limited (“Addax Ltd.”) to assist ERHC in leveraging its interests in the JDZ. ERHC currently has no other operations.

Going Concern

The accompanying financial statements have been prepared on the basis that the Company will continue as a going concern which contemplates the realization of assets and the satisfaction of liabilities in the ordinary and usual course of business. As of September 30, 2015, the Company has a working capital deficit and negative cash flows from operating activities. These conditions raise substantial doubt about the Company’s ability to continue as a going concern. The ability of the Company to continue as a going concern is dependent on raising additional capital to fund ongoing exploration projects and ultimately on attaining future profitable operations. The Company is continuing with its plan to further seek new opportunity for farm-out its assets in Kenya, Chad and the Săo Tomé and Príncipe Exclusive Economic Zone. Management believes that the Company’s current operating strategy will provide the opportunity for the Company to continue as a going concern as long as the Company continues to obtain additional financing; however there is no assurance that this will occur. The financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Cash Equivalents

ERHC considers all highly liquid short-term investments with an original maturity of three months or less, when purchased, to be cash equivalents.

Investment in Oando Energy Resources (OER)

The Company's investments in common stock and warrants are carried at market value. Both stocks and warrants are accounted for as available for sale securities, and changes in their fair value are recognized in other comprehensive income (loss).

Furniture, Fixtures and Equipment

Furniture, fixtures and equipment are stated at cost and include expenditures for renewals and improvements and capitalized interest. Maintenance and repairs are charged to current operations. When property is retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the respective accounts, and any gain or loss on disposition is included in income. Depreciation is provided principally on the straight-line method over the estimated service lives of the assets. In general, office furniture is depreciated over 7 years, office equipment over 5 years and computer equipment over 3 years.

Successful Efforts

ERHC uses the successful efforts method of accounting for oil and gas producing activities. Under this method, acquisition costs for proved and unproved properties are capitalized when incurred. Exploration costs, including geological and geophysical costs, the costs of carrying and retaining unproved properties and exploratory dry hole drilling costs, are expensed. Development costs, including the costs to drill and equip development wells and successful exploratory drilling costs to locate proved reserves are capitalized. Exploratory drilling costs are capitalized when incurred pending the determination of whether a well has found proved reserves. A determination of whether a well has found proved reserves is made after drilling is completed. The determination is based on a process that relies on interpretations of available geologic, geophysics, and engineering data. If a well is determined to be successful, the capitalized drilling costs will be reclassified as part of the cost of the well. If a well is determined to be unsuccessful, the capitalized drilling costs will be charged to expense in the period the determination is made. If an exploratory well requires a major capital expenditure before production can begin, the cost of drilling the exploratory well will continue to be carried as an asset pending determination of whether proved reserves have been found only as long as: i) the well has found a sufficient quantity of reserves to justify its completion as a producing well if the required capital expenditure is made and ii) drilling of the additional exploratory wells is under way or firmly planned for the near future. If drilling in the area is not under way or firmly planned, or if the well has not found a commercially producible quantity of reserves, the exploratory well is assumed to be impaired, and its costs are charged to expense.

In the absence of a determination as to whether the reserves that have been found can be classified as proved, the costs of drilling such an exploratory well is not carried as an asset for more than one year following completion of drilling. If, after that year has passed, a determination that proved reserves exist cannot be made, the well is assumed to be impaired, and its costs are charged to expense. Its costs can, however, continue to be capitalized if sufficient quantities of reserves are discovered in the well to justify its completion as a producing well and sufficient progress is made in assessing the reserves and the well’s economic and operating feasibility.

The impairment of unamortized capital costs is measured at a lease level and is reduced to fair value if it is determined that the sum of expected future net cash flows is less than the net book value. ERHC determines if impairment has occurred through either adverse changes or as a result of the annual review of all fields.

Development costs of proved oil and gas properties, including estimated dismantlement, restoration and abandonment costs and acquisition costs, are depreciated and depleted on a field basis by the units-of-production method using proved developed and proved reserves, respectively. The costs of unproved oil and gas properties are generally combined and impaired over a period that is based on the average holding period for such properties and the Company’s experience of successful drilling.

Impairment of Long-lived Assets

ERHC evaluates the recoverability of long-lived assets when events and circumstances indicate that such assets might be impaired. ERHC determines impairment by comparing the undiscounted future cash flows estimated to be generated by these assets to their respective carrying amounts. Impairments are charged to operations in the period to which events and circumstances indicate that such assets might be impaired. ERHC has evaluated its investments located in Republic Kenya, Republic of Chad and in its DRSTP concession fee in light of its 2003 Option Agreement (see Note 5 and there have been no events or circumstances that would indicate that such assets might be impaired).

Income Taxes

Income taxes are accounted for under the assets and liability method. Under this method, the deferred tax assets and liabilities are estimated based upon the difference between the financial statement and tax bases of assets and liabilities using tax rates in effect for the year in which the Company expects the differences to affect taxable income. The tax consequences of most events recognized in the current year’s financial statements are included in determining income taxes currently payable. However, because tax laws and financial accounting standards differ in their recognition and measurement of assets, liabilities, equity, revenues, expenses, gains and losses, differences arise between the amount of taxable income and pretax financial income for a year and between the tax bases of assets or liabilities and their reported amounts in the financial statements. Because the Company assumes that the reported amounts of assets and liabilities will be recovered and settled, respectively, a difference between the tax basis of an asset or a liability and its reported amount in the balance sheet will result in a taxable or a deductible amount in some future years when the related liabilities are settled or the reported amounts of the assets are recovered, which gives rise to a deferred tax asset. The Company must then assess the likelihood that the deferred tax assets will be recovered from future taxable income and to the extent the Company believes that recovery is not likely, the Company must establish a valuation allowance.

The Company estimates the provision for income taxes based on income before income taxes for each tax jurisdiction in which the Company has established operations. The Company does not provide incremental U.S. income taxes on un-remitted foreign earnings taxed at rates less than the U.S. tax rates as such earnings are considered permanently invested.

The Company follows the FASB guidance on accounting for uncertainty in income taxes which provides a financial statement recognition threshold and measurement attribute for a tax position taken or expected to be taken in a tax return. Under this guidance, the Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position should be measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. The guidance also extends to de-recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, accounting for interest and penalties associated with tax positions, and income tax disclosures.

Net Loss Per Share

Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted loss per share is computed by dividing net loss by the weighted average number of shares outstanding, after giving effect to potentially dilutive common share equivalents outstanding during the period. Potentially dilutive common share equivalents are not included in the computation of diluted loss per share if they are anti-dilutive. Diluted loss per common share is the same as basic for all periods presented because the effect of potentially dilutive common shares arising from outstanding stock warrants and options was anti-dilutive. For the years ended September 30, 2015 and 2014, potential dilutive securities had an anti-dilutive effect and were not included in the calculation of diluted net loss per common share.

Stock-based Compensation

ERHC recognizes compensation costs resulting from the issuance of stock-based awards to employees and directors over the requisite period based on the fair value of each stock award on the grant date.

Recent Accounting Pronouncements

There have been no recently issued accounting pronouncements that have had or are expected to have a material impact on the Company based on the financial statements.