000040 - Statement - Consolidated Statements of Operations (thousands of dollars, except unit and per unit data) link:presentationLink link:definitionLink link:calculationLink 000030 - Statement - Balance Sheets Parentheticals link:presentationLink link:definitionLink link:calculationLink 000180 - Disclosure - Business Segments link:presentationLink link:definitionLink link:calculationLink 000350 - Statement - Employee Options and Benefit Plans (Details) {stockholders equity} link:presentationLink link:definitionLink link:calculationLink 000370 - Statement - Income Taxes - Income tax expense (Details) link:presentationLink link:definitionLink link:calculationLink 000230 - Disclosure - Basis of Presentation and Accounting Policies (Tables) link:presentationLink link:definitionLink link:calculationLink 000340 - Statement - Long Term Debt and Loan Agreements Capital and Operating Leases (Millions) (Details) link:presentationLink link:definitionLink link:calculationLink 000020 - Statement - Consolidated Balance Sheets (thousands of dollars, except unit information) link:presentationLink link:definitionLink link:calculationLink 000220 - Disclosure - Accounting Policies (policies) link:presentationLink link:definitionLink link:calculationLink 000120 - Disclosure - Other Income link:presentationLink link:definitionLink link:calculationLink 000310 - Statement - Summary of cost and accumulated depreciation for property, plant, and equipment (thousands of dollars) (Details) link:presentationLink link:definitionLink link:calculationLink 000300 - Statement - Basis of Presentation and Accounting Policies Property, Plant, and Equipment Estimated useful life (Details) link:presentationLink link:definitionLink link:calculationLink 000270 - Disclosure - Selected quarterly financial data for fiscal years (Tables) link:presentationLink link:definitionLink link:calculationLink 000110 - Disclosure - Employee Options and Benefit Plans link:presentationLink link:definitionLink link:calculationLink 000280 - Statement - Description of Business (Details) link:presentationLink link:definitionLink link:calculationLink 000160 - Disclosure - Capital Shares and Equities link:presentationLink link:definitionLink link:calculationLink 000170 - Disclosure - Legal Proceedings link:presentationLink link:definitionLink link:calculationLink 000330 - Statement - Long Term Debt and Loan Agreements Master Loan Agreement (Millions) (Details) link:presentationLink link:definitionLink link:calculationLink 000080 - Disclosure - Description of Business link:presentationLink link:definitionLink link:calculationLink 000420 - Statement - Business Segments (Details) link:presentationLink link:definitionLink link:calculationLink 000360 - Statement - Other Income (In Millions) (Details) link:presentationLink link:definitionLink link:calculationLink 000380 - Statement - Income Taxes - Income tax expense differed from "expected" income tax (Details) link:presentationLink link:definitionLink link:calculationLink 000010 - Document - Document and Entity Information link:presentationLink link:definitionLink link:calculationLink 000240 - Disclosure - Income Taxes (Tables) link:presentationLink link:definitionLink link:calculationLink 000290 - Statement - Description of Business (Details Textual1) link:presentationLink link:definitionLink link:calculationLink 000060 - Statement - Consolidated Statements of Capital Shares and Equities {SHAREHOLDERS' EQUITY} link:presentationLink link:definitionLink link:calculationLink 000410 - Statement - Capital Shares and Equities (Limited liability company agreement) (Details) link:presentationLink link:definitionLink link:calculationLink 000140 - Disclosure - Related Party Transactions link:presentationLink link:definitionLink link:calculationLink 000190 - Disclosure - Transition Period Comparative Data link:presentationLink link:definitionLink link:calculationLink 000400 - Statement - Capital Shares and Equities Class Units (Details) link:presentationLink link:definitionLink link:calculationLink 000090 - Disclosure - Basis of Presentation and Accounting Policies link:presentationLink link:definitionLink link:calculationLink 000150 - Disclosure - Fair Value Measurements link:presentationLink link:definitionLink link:calculationLink 000070 - Statement - Consolidated Statements of Cash Flows (thousands of dollars) link:presentationLink link:definitionLink link:calculationLink 000100 - Disclosure - Long Term Debt and Loan Agreements link:presentationLink link:definitionLink link:calculationLink 000250 - Disclosure - Related Party Transactions (Tables) link:presentationLink link:definitionLink link:calculationLink 000260 - Disclosure - Transition Period Comparative Data (Tables) link:presentationLink link:definitionLink link:calculationLink 000200 - Disclosure - Quarterly Results (Unaudited) link:presentationLink link:definitionLink link:calculationLink 000320 - Statement - Net income attributable to non-controlling interest (Details) link:presentationLink link:definitionLink link:calculationLink 000050 - Statement - Consolidated Statements of Comprehensive (Loss) Income (thousands of dollars) link:presentationLink link:definitionLink link:calculationLink 000210 - Disclosure - Subsequent Events link:presentationLink link:definitionLink link:calculationLink 000390 - Statement - Related Party Transactions - NBP sales and purchases with the following related parties (thousands of dollars) (Details) link:presentationLink link:definitionLink link:calculationLink 000130 - Disclosure - Income Taxes link:presentationLink link:definitionLink link:calculationLink