Organization, Operations and Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2020
Accounting Policies [Abstract]
Organization and Operations	Organization and Operations U.S. Energy Corp. (collectively with its wholly owned subsidiaries, is referred to as the “Company” in these Notes to Unaudited Condensed Consolidated Financial Statements) was incorporated in the State of Wyoming on January 26, 1966. The Company’s principal business activities are focused on the acquisition, exploration and development of oil and natural gas properties in the United States.
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements are presented in accordance with U.S. generally accepted accounting principles (“GAAP”) and have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. Accordingly, certain information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted in accordance with such rules and regulations. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation of the consolidated financial statements have been included. For further information, refer to the consolidated financial statements and footnotes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2019. Our financial condition as of March 31, 2020, and operating results for the three months ended March 31, 2020, are not necessarily indicative of the financial condition and results of operations that may be expected for any future interim period or for the year ending December 31, 2020.
Reverse Stock Split	Reverse Stock Split On January 6, 2020, the Company completed a one-for-ten reverse stock split (the “Reverse Split”) with respect to the Company’s common stock. For purposes of presentation, the unaudited condensed consolidated financial statements and footnotes have been adjusted for the number of post-split shares as if the split had occurred at the beginning of earliest period presented.
Liquidity and Resources	Liquidity and Resources Commodity prices have declined significantly since early March 2020. While the Company expects to experience a decrease in its oil and natural gas revenue, it believes that its existing cash and capital resources and its forecasted low overhead costs going forward have given it the ability to continue as a going concern and the Company expects that it will be able to fund operations for the next twelve months
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, 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. Significant estimates include oil and natural gas reserves that are used in the calculation of depreciation, depletion, amortization and impairment of the carrying value of evaluated oil and natural gas properties; realizability of unevaluated properties; production and commodity price estimates used to record accrued oil and natural gas sales receivables; valuation of warrant instruments; valuation of assets acquired and liabilities assumed in business combinations and the cost of future asset retirement obligations. The Company evaluates its estimates on an on-going basis and bases its estimates on historical experience and on various other assumptions the Company believes to be reasonable. Due to inherent uncertainties, including the future prices of oil and natural gas, these estimates could change in the near term and such changes could be material.
Principles of Consolidation	Principles of Consolidation The accompanying financial statements include the accounts of U.S. Energy Corp. and its wholly owned subsidiaries. All inter-company balances and transactions have been eliminated in consolidation.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements Fair Value Measurements. In August 2018, the FASB issued ASU No. 2018-13, Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurements. The ASU amends the disclosure requirements in Topic 820, Fair Value Measurements. The amendments in this ASU are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company adopted this ASU as of January 1, 2020. The adoption resulted in a change to the disclosures for the valuation process of Level 3 fair value measurements.

Organization and Operations

U.S. Energy Corp. (collectively with its wholly owned subsidiaries, is referred to as the “Company” in these Notes to Unaudited Condensed Consolidated Financial Statements) was incorporated in the State of Wyoming on January 26, 1966. The Company’s principal business activities are focused on the acquisition, exploration and development of oil and natural gas properties in the United States.

Reverse Stock Split

On January 6, 2020, the Company completed a one-for-ten reverse stock split (the “Reverse Split”) with respect to the Company’s common stock. For purposes of presentation, the unaudited condensed consolidated financial statements and footnotes have been adjusted for the number of post-split shares as if the split had occurred at the beginning of earliest period presented.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, 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. Significant estimates include oil and natural gas reserves that are used in the calculation of depreciation, depletion, amortization and impairment of the carrying value of evaluated oil and natural gas properties; realizability of unevaluated properties; production and commodity price estimates used to record accrued oil and natural gas sales receivables; valuation of warrant instruments; valuation of assets acquired and liabilities assumed in business combinations and the cost of future asset retirement obligations. The Company evaluates its estimates on an on-going basis and bases its estimates on historical experience and on various other assumptions the Company believes to be reasonable. Due to inherent uncertainties, including the future prices of oil and natural gas, these estimates could change in the near term and such changes could be material.

Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

Fair Value Measurements. In August 2018, the FASB issued ASU No. 2018-13, Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurements. The ASU amends the disclosure requirements in Topic 820, Fair Value Measurements. The amendments in this ASU are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company adopted this ASU as of January 1, 2020. The adoption resulted in a change to the disclosures for the valuation process of Level 3 fair value measurements.