Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2015
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2—Summary of Significant Accounting Policies Principles of Consolidation and Basis of Presentation The unaudited condensed consolidated financial statements include the accounts of Par Petroleum Corporation ("Par") and its subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Certain amounts from prior periods have been reclassified to conform to the current presentation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, they do not include all of the information and notes required by GAAP for complete consolidated financial statements. The unaudited condensed consolidated financial statements contained in this report include all material adjustments of a normal recurring nature that, in the opinion of management, are necessary for a fair presentation of the results for the interim periods. The results of operations for the interim periods presented are not necessarily indicative of the results that may be expected for the complete fiscal year, or for any other period. The condensed consolidated balance sheet as of December 31, 2014 was derived from our audited consolidated financial statements as of that date. These unaudited condensed consolidated financial statements should be read together with the consolidated financial statements and notes thereto included in our Current Report on Form 8-K filed on May 22, 2015. Use of Estimates The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the related disclosures. Actual amounts could differ from these estimates. On an ongoing basis, we review our estimates based on currently available information. Changes in facts and circumstances may result in revised estimates. Significant estimates include the fair value of certain assets and liabilities, including those acquired in business combinations, natural gas and oil reserves, income taxes and the valuation allowances related to deferred tax assets, derivatives, asset retirement obligations, contingencies and litigation accruals. Accounting Principles Not Yet Adopted In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU No. 2014-09”). The FASB’s objective was to provide a more robust framework to improve comparability of revenue recognition practices across entities by removing most industry and transaction specific guidance, align GAAP with International Financial Reporting Standards, and provide more useful information to financial statement users. This authoritative guidance changes the way entities recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which it expects to be entitled in exchange for those goods or services. ASU No. 2014-09 is effective for interim and annual periods beginning after December 15, 2017 and early adoption is permitted for interim and annual periods beginning after December 15, 2016. ASU No. 2014-09 allows for either full retrospective adoption or modified retrospective adoption. We are in the process of determining the method of adoption and the impact this guidance will have on our financial condition, results of operations and cash flows. In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (“ASU 2014-15”). ASU 2014-15 is intended to define management’s responsibility to evaluate whether there is substantial doubt about an organization’s ability to continue as a going concern and to provide related footnote disclosures. The amendments in this ASU are effective for interim and annual periods beginning after December 15, 2016 and early adoption is permitted. We do not expect the adoption of ASU 2014-15 to have a material impact on our financial condition, results of operations and cash flows. In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis ("ASU 2015-02"). ASU 2015-02 changes the consolidation analysis required under GAAP. ASU 2015-02 eliminates the presumption that a general partner should consolidate a limited partnership and modifies the evaluation of whether limited partnerships are Variable Interest Entities or voting interest entities. Under the amended guidance, limited partners would be required to consolidate a partnership if the limited partner retains certain powers and obligations. The amendments in this ASU are effective for annual periods beginning after December 15, 2016, and interim periods beginning after December 15, 2017. ASU 2015-02 allows for either full retrospective adoption or modified retrospective adoption. Early adoption is permitted, but the guidance must be applied as of the beginning of the annual period containing the adoption date. We are in the process of determining the method of adoption and the impact this guidance will have on our financial condition, results of operations and cash flows. In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs ("ASU 2015-03"). ASU 2015-03 changes the balance sheet classification of debt issuance costs. Under current GAAP, debt issuance costs are reported on the balance sheet as assets and amortized as interest expense. ASU 2015-03 requires that debt issuance costs be presented as a direct reduction from the carrying amount of the related debt liability, which is similar to the presentation of debt discounts or premiums. Debt issuance costs will continue to be amortized to interest expense using the effective interest method. The amendments in this ASU are effective for annual and interim periods beginning after December 15, 2015. ASU 2015-03 should be adopted on a retrospective basis and early adoption is permitted. As of June 30, 2015 and December 31, 2014, we had $8.6 million and $13.2 million of debt issuance costs included in Other long-term assets on our unaudited condensed consolidated balance sheets, respectively. In July 2015, the FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory ("ASU 2015-11"). ASU 2015-11 changes the inventory measurement principle for entities using the first-in, first out (FIFO) or average cost methods. The amendments do not apply to inventory that is measured using last-in, first-out (LIFO) or the retail inventory method. For entities utilizing one of these methods, the inventory measurement principle will change from lower of cost or market to the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. Subsequent measurement is unchanged for inventory measured using LIFO or the retail inventory method. The amendments in this ASU are effective for annual and interim periods beginning after December 15, 2016. ASU 2015-11 should be adopted prospectively with earlier application permitted as of the beginning of an interim or annual reporting period. Our commodity inventories are currently stated at the lower of cost or market value using the first-in, first-out accounting method. We value merchandise, spare parts, materials, and supplies at average cost. We are currently evaluating the provisions and assessing the impact, if any, this amendment may have on our financial position and results of operations.

Note 2—Summary of Significant Accounting Policies

Principles of Consolidation and Basis of Presentation

The unaudited condensed consolidated financial statements include the accounts of Par Petroleum Corporation ("Par") and its subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Certain amounts from prior periods have been reclassified to conform to the current presentation.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, they do not include all of the information and notes required by GAAP for complete consolidated financial statements. The unaudited condensed consolidated financial statements contained in this report include all material adjustments of a normal recurring nature that, in the opinion of management, are necessary for a fair presentation of the results for the interim periods. The results of operations for the interim periods presented are not necessarily indicative of the results that may be expected for the complete fiscal year, or for any other period. The condensed consolidated balance sheet as of December 31, 2014 was derived from our audited consolidated financial statements as of that date. These unaudited condensed consolidated financial statements should be read together with the consolidated financial statements and notes thereto included in our Current Report on Form 8-K filed on May 22, 2015.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the related disclosures. Actual amounts could differ from these estimates. On an ongoing basis, we review our estimates based on currently available information. Changes in facts and circumstances may result in revised estimates. Significant estimates include the fair value of certain assets and liabilities, including those acquired in business combinations, natural gas and oil reserves, income taxes and the valuation allowances related to deferred tax assets, derivatives, asset retirement obligations, contingencies and litigation accruals.

Accounting Principles Not Yet Adopted

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU No. 2014-09”). The FASB’s objective was to provide a more robust framework to improve comparability of revenue recognition practices across entities by removing most industry and transaction specific guidance, align GAAP with International Financial Reporting Standards, and provide more useful information to financial statement users. This authoritative guidance changes the way entities recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which it expects to be entitled in exchange for those goods or services. ASU No. 2014-09 is effective for interim and annual periods beginning after December 15, 2017 and early adoption is permitted for interim and annual periods beginning after December 15, 2016. ASU No. 2014-09 allows for either full retrospective adoption or modified retrospective adoption. We are in the process of determining the method of adoption and the impact this guidance will have on our financial condition, results of operations and cash flows.

In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (“ASU 2014-15”). ASU 2014-15 is intended to define management’s responsibility to evaluate whether there is substantial doubt about an organization’s ability to continue as a going concern and to provide related footnote disclosures. The amendments in this ASU are effective for interim and annual periods beginning after December 15, 2016 and early adoption is permitted. We do not expect the adoption of ASU 2014-15 to have a material impact on our financial condition, results of operations and cash flows.

In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis ("ASU 2015-02"). ASU 2015-02 changes the consolidation analysis required under GAAP. ASU 2015-02 eliminates the presumption that a general partner should consolidate a limited partnership and modifies the evaluation of whether limited partnerships are Variable Interest Entities or voting interest entities. Under the amended guidance, limited partners would be required to consolidate a partnership if the limited partner retains certain powers and obligations. The amendments in this ASU are effective for annual periods beginning after December 15, 2016, and interim periods beginning after December 15, 2017. ASU 2015-02 allows for either full retrospective adoption or modified retrospective adoption. Early adoption is permitted, but the guidance must be applied as of the beginning of the annual period containing the adoption date. We are in the process of determining the method of adoption and the impact this guidance will have on our financial condition, results of operations and cash flows.

In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs ("ASU 2015-03"). ASU 2015-03 changes the balance sheet classification of debt issuance costs. Under current GAAP, debt issuance costs are reported on the balance sheet as assets and amortized as interest expense. ASU 2015-03 requires that debt issuance costs be presented as a direct reduction from the carrying amount of the related debt liability, which is similar to the presentation of debt discounts or premiums. Debt issuance costs will continue to be amortized to interest expense using the effective interest method. The amendments in this ASU are effective for annual and interim periods beginning after December 15, 2015. ASU 2015-03 should be adopted on a retrospective basis and early adoption is permitted. As of June 30, 2015 and December 31, 2014, we had $8.6 million and $13.2 million of debt issuance costs included in Other long-term assets on our unaudited condensed consolidated balance sheets, respectively.

In July 2015, the FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory ("ASU 2015-11"). ASU 2015-11 changes the inventory measurement principle for entities using the first-in, first out (FIFO) or average cost methods. The amendments do not apply to inventory that is measured using last-in, first-out (LIFO) or the retail inventory method. For entities utilizing one of these methods, the inventory measurement principle will change from lower of cost or market to the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. Subsequent measurement is unchanged for inventory measured using LIFO or the retail inventory method. The amendments in this ASU are effective for annual and interim periods beginning after December 15, 2016. ASU 2015-11 should be adopted prospectively with earlier application permitted as of the beginning of an interim or annual reporting period. Our commodity inventories are currently stated at the lower of cost or market value using the first-in, first-out accounting method. We value merchandise, spare parts, materials, and supplies at average cost. We are currently evaluating the provisions and assessing the impact, if any, this amendment may have on our financial position and results of operations.