106 - Disclosure - Asset Retirement Obligations link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40601 - Disclosure - Asset Retirement Obligations (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 306 - Disclosure - Asset Retirement Obligations (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40501 - Disclosure - Bank Credit Facility (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 305 - Disclosure - Bank Credit Facility (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 002 - Statement - BALANCE SHEETS link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 003 - Statement - BALANCE SHEETS (Parenthetical) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 110 - Disclosure - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 41001 - Disclosure - Commitments and Contingencies (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 001 - Document - Document and Entity Information link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 104 - Disclosure - Depletion, depreciation and amortization link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40401 - Disclosure - Depletion, depreciation and amortization (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 304 - Disclosure - Depletion, depreciation and amortization (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 103 - Disclosure - Interest Expense link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40301 - Disclosure - Interest Expense (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 303 - Disclosure - Interest Expense (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 101 - Disclosure - Organization and Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40101 - Disclosure - Organization and Summary of Significant Accounting Policies (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40102 - Disclosure - Organization and Summary of Significant Accounting Policies (Earnings Per Share) (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 201 - Disclosure - Organization and Summary of Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 301 - Disclosure - Organization and Summary of Significant Accounting Policies (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 102 - Disclosure - Property and Equipment link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40201 - Disclosure - Property and Equipment (Schedule of Capitalized Costs of Property And Equipment) (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 302 - Disclosure - Property and Equipment (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 105 - Disclosure - Revolving Credit Facility link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 107 - Disclosure - Related Party Transaction link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40701 - Disclosure - Related Party Transaction (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 109 - Disclosure - Stock-Based Compensation link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40901 - Disclosure - Stock-Based Compensation (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 309 - Disclosure - Stock-Based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 108 - Disclosure - Shareholders' Equity link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 112 - Disclosure - Subsequent Events link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40801 - Disclosure - Shareholders' Equity (Common Stock Transactions) (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 40802 - Disclosure - Shareholders' Equity (Common Stock Warrants) (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 41201 - Disclosure - Subsequent Events (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 308 - Disclosure - Shareholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 007 - Statement - STATEMENTS OF CASH FLOWS link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 004 - Statement - STATEMENTS OF OPERATIONS link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 111 - Disclosure - Supplemental Schedule of Information to the Statements of Cash Flows link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 41101 - Disclosure - Supplemental Schedule of Information to the Statements of Cash Flows (Details) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink 311 - Disclosure - Supplemental Schedule of Information to the Statements of Cash Flows (Tables) link:calculationLink link:definitionLink link:presentationLink link:labelLink link:referenceLink