SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Jun. 30, 2013
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	NOTE 3 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Exploration Stage Enterprise The Company has been devoting most of its efforts to exploring for and developing its oil and gas assets and, consequently, meets the definition of An Exploration Stage Enterprise, under the Accounting Standards Codification “Accounting and Reporting for Development Stage Enterprises.” Certain additional financial information is required to be included in the financial statements for the period from inception of the Company to the current balance sheet date. Oil and Gas Properties The Company follows the full cost method of accounting for oil and natural gas operations. Under this method all productive and nonproductive costs incurred in connection with the acquisition, exploration, and development of oil and natural gas reserves are capitalized on a country-by-country basis into an individual country “cost pool.” The Company has operations in the United States and, consequently, only has one cost pool. No gains or losses are recognized upon the sale or other disposition of oil and natural gas properties except in transactions that would significantly alter the relationship between capitalized costs and proved reserves. The costs of unevaluated oil and natural gas properties are excluded from the amortizable base until the time that either proven reserves are found or it has been determined that such properties are impaired. As properties become evaluated, the related costs are transferred to the proved oil and natural gas properties cost pool using full cost accounting. Under the full cost method the net book value of oil and natural gas properties, less related deferred income taxes, may not exceed the estimated after-tax future net revenues from proved oil and natural gas properties, discounted at 10% (the “Ceiling Limitation”). In arriving at estimated future net revenues, estimated lease operating expenses, development costs, and certain production-related and ad valorem taxes are deducted. In calculating future net revenues, prices and costs are held constant indefinitely, except for changes that are fixed and determinable by existing contracts. Prices are determined using a simple arithmetic average of the first day of each month during the most recent twelve month period presented herein. The net book value is compared to the Ceiling Limitation on a quarterly and yearly basis. The excess, if any, of the net book value above the Ceiling Limitation is charged to expense in the period in which it occurs and is not subsequently reinstated. Unit-of-production depletion is applied to capitalized costs of the full cost pool. Unit-of-production rates are based on the amount of proved reserves (both developed and undeveloped) of oil, gas and other minerals that are estimated to be recoverable from existing facilities using current operating methods. The costs of investments in unproved properties and portions of costs associated with major development projects are excluded from the depreciation, depletion and amortization calculation until the project is evaluated. Unproved property costs include leasehold costs, seismic costs and other costs incurred during the exploration phase. In areas where proved reserves are established, significant unproved properties are evaluated periodically, but not less than annually, for impairment. If a reduction in value has occurred, these property costs are considered impaired and are transferred to the related full cost pool. Unproved properties whose acquisition costs are not individually significant are aggregated, and the portion of such costs estimated to be ultimately nonproductive, based on experience, and is amortized to the full cost pool over an average holding period. Use of Estimates The preparation of the Company’s financial statements in accordance with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Management believes that the following material estimates affecting the financial statements could significantly change in the coming year. The most significant estimates pertain to proven oil and natural gas reserves and related cash flow estimates used in impairment tests of long-lived assets, estimates of future development, dismantlement and abandonment costs. Certain of these estimates require assumptions regarding future costs and expenses and future production rates. Actual results could differ from those estimates. The Company’s revenue, profitability and future growth are substantially dependent upon the prevailing and future prices for oil and natural gas, which are dependent upon numerous factors beyond their control such as economic, political and regulatory developments and competition from other energy sources. The energy markets have historically been very volatile and there can be no assurance that oil and natural gas prices will not be subject to wide fluctuations in the future. A substantial or extended decline in oil and natural gas prices could have a material adverse effect on the Company’s financial position, results of operations, cash flows and quantities of oil and natural gas reserves that may be economically produced. Estimates of oil and natural gas reserves and their values, future production rates and future costs and expenses are inherently uncertain for numerous reasons, including many factors beyond the Company’s control. Reservoir engineering is a subjective process of estimating underground accumulations of oil and natural gas that cannot be measured in an exact manner. The accuracy of any reserve estimate is a function of the quality of data available and of engineering and geological interpretation and judgment. In addition, estimates of reserves may be revised based on actual production, results of subsequent exploration and development activities, prevailing commodity prices, operating cost and other factors. These revisions may be material and could materially affect future depletion, depreciation and amortization expense, dismantlement and abandonment costs, and impairment expense. Concentrations Upon acquisition of oil and gas field interests, the Company also became a party to joint operating agreements (“JOA’s”) that define the rights and responsibilities third party operators and passive interest holders. Under the JOA, the third party operator is responsible for acquiring customers to sell the oil and gas produced and to either performing or contracting out to other third parties to perform services necessary to continue and maintain undeveloped acreage. Currently all of the Company’s leasehold interests have as their third party operator Eagle Ford Oil Co. Inc. which is controlled by the former managing member of both Pan Am Oil Co., LLC and Rio Bravo Oil, LLC. Concentrations of Market Risk The future results of the company’s oil and natural gas operations will be affected by the market prices of oil and natural gas. The availability of a ready market for oil and natural gas products in the future will depend on numerous factors beyond the control of the Company, including weather, imports, marketing of competitive fuels, proximity and capacity of oil and natural gas pipelines and other transportation facilities, any oversupply or undersupply of oil, natural gas and liquid products, the regulatory environment, the economic environment, and other regional and political events, none of which can be predicted with certainty. The Company operates in the exploration, development and production sector of the oil and gas industry. While certain of these customers and joint venture partners are affected by periodic downturns in the economy in general or in their specific segment of the oil and natural gas industry, the Company believes that its level of credit-related losses due to such economic fluctuations has been and will continue to be immaterial to the Company’s results of operations over the long-term. Concentrations of Credit Risk Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash. During the year the amount of bank deposits that exceeded Federal Deposit Insurance Corporation (“FDIC”) insurance can be material. Net Loss Per Share Basic loss per share is calculated based on the weighted-average number of outstanding common shares. Diluted loss per share is calculated based on the weighted-average number of outstanding common shares plus the effect of dilutive potential common shares, using the treasury stock method. The Company’s calculation of diluted net loss per share excludes potential common shares as of June 30, 2013 and 2012 as the effect would be anti-dilutive (i.e. would reduce the loss per share). At June 30, 2013, warrants and preferred stock that were convertible into 12,528,453 shares of common stock were not included in the net loss per share calculation. In accordance with SEC Accounting Series Release 280, the Company computes its income or loss applicable to common stock holders by subtracting dividends on preferred stock, including undeclared or unpaid dividends if cumulative, from it reported net loss and reports the same on the face of its statement of operations.

- Definition

The entire disclosure for all significant accounting policies of the reporting entity.

+ References+ Details

Rio Bravo Oil, Inc. 10-Q