Accounting Policies	9 Months Ended
Jun. 30, 2011
Accounting Policies
Organization Consolidation And Presentation Of Financial Statements Disclosure Text Block	NOTE 1. ACCOUNTING POLICIES Basis of Presentation WGL Holdings, Inc. (WGL Holdings) is a holding company that owns all of the shares of common stock of Washington Gas Light Company (Washington Gas), a regulated natural gas utility, and all of the shares of common stock of Washington Gas Resources Corporation (Washington Gas Resources), Hampshire Gas Company (Hampshire) and Crab Run Gas Company. Washington Gas Resources owns all of the shares of common stock of four non-utility subsidiaries that include Washington Gas Energy Services, Inc. (WGEServices), Washington Gas Energy Systems, Inc. (WGESystems), Capitol Energy Ventures Corp. (CEV) and WGSW, Inc. Except where the content clearly indicates otherwise, “WGL Holdings,” “we,” “us” or “our” refers to the holding company or the consolidated entity of WGL Holdings and all of its subsidiaries. Unless otherwise noted, these notes apply equally to WGL Holdings and Washington Gas. The interim consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Therefore, certain financial information and note disclosures accompanying annual financial statements prepared in accordance with generally accepted accounting principles in the United States of America (GAAP) are omitted in this interim report. The interim consolidated financial statements and accompanying notes should be read in conjunction with the combined Annual Report on Form 10-K for WGL Holdings and Washington Gas for the fiscal year ended September 30, 2010. Due to the seasonal nature of Washington Gas' and WGEServices' businesses, the results of operations for the periods presented in this report are not necessarily indicative of actual results for the full fiscal years ending September 30, 2011 and 2010 of either WGL Holdings or Washington Gas. The accompanying unaudited consolidated financial statements for WGL Holdings and Washington Gas reflect all normal recurring adjustments that are necessary, in our opinion, to present fairly the results of operations in accordance with GAAP. For a complete description of our accounting policies, refer to Note 1 of the Notes to Consolidated Financial Statements of the combined Annual Report on Form 10-K for WGL Holdings and Washington Gas for the fiscal year ended September 30, 2010. Accounting Standards Adopted in the Current Period Receivables. In July 2010, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2010-20, Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses (ASU 2010-20). ASU 2010-20 requires companies to provide more information in their disclosures about the credit quality of their financing receivables such as aging information and credit quality indicators, and the credit reserves held against them. Both new and existing disclosures must be disaggregated by portfolio segment or class. The disaggregation of information is based on how a company develops its allowance for credit losses and how it manages its credit exposure. ASU 2010-20 was effective for us on January 1, 2011. The adoption of this standard did not have a material effect on our consolidated financial statements. Newly Issued Accounting Standards Fair Value. In May 2011, the FASB issued ASU 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS (ASU 2011-04). ASU 2011-04 amends Accounting Standards Codification (ASC) Topic 820 to include a consistent definition of the term “fair value” and set forth common requirements for measuring fair value and disclosing information about fair value measurements in financial statements. ASU 2011-04 will be effective for us beginning January 1, 2012. We do not expect the adoption of this standard to have a material effect on our consolidated financial statements. In January 2010, the FASB issued ASU 2010-06, Improving Disclosures about Fair Value Measurements (ASU 2010-06). ASU 2010-06 amends ASC Topic 820 to require the following additional disclosures regarding fair value measurements: (i) the amounts of transfers between Level 1 and Level 2 of the fair value hierarchy; (ii) reasons for any transfers in or out of Level 3 of the fair value hierarchy and (iii) the inclusion of information about purchases, sales, issuances and settlements in the reconciliation of recurring Level 3 measurements. ASU 2010-06 also amends ASC Topic 820 to clarify existing disclosure requirements, requiring fair value disclosures by class of assets and liabilities rather than by major category and the disclosure of valuation techniques and inputs used to determine the fair value of Level 2 and Level 3 assets and liabilities. The adoption of this standard affected and will affect disclosures only. With the exception of disclosures relating to purchases, sales issuances and settlements of recurring Level 3 measurements, ASU 2010-06 was effective for us on January 1, 2010. The adoption of these requirements did not have a material impact on our financial statements. Refer to Note 10 – Fair Value Measurements for the required disclosure under this standard. The disclosure requirements related to purchases, sales, issuances and settlements of recurring Level 3 measurements will be effective for us beginning October 1, 2011. We do not expect the adoption of the remaining requirements of this standard to have a material effect on our consolidated financial statements. Other. In June 2011, the FASB issued ASU 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income (ASU 2011-05). ASU 2011-05 is intended to improve financial reporting by requiring companies to present items of net income in either one continuous statement, or in two separate but consecutive statements of net income and other comprehensive net income. The new guidance removes the current presentation options in ASC Topic 220. The requirements of ASU 2011-05 do not change which components of comprehensive income are recognized in net income or other comprehensive income, nor does the update change the computation of earnings per share (EPS). ASU 2011-05 will be effective for us on October 1, 2012. We do not expect the adoption of this standard to have a material effect on our financial position or results of operations.

Accounting Policies

9 Months Ended

Jun. 30, 2011

Organization Consolidation And Presentation Of Financial Statements Disclosure Text Block

NOTE 1. ACCOUNTING POLICIES

Basis of Presentation

WGL Holdings, Inc. (WGL Holdings) is a holding company that owns all of the shares of common stock of Washington Gas Light Company (Washington Gas), a regulated natural gas utility, and all of the shares of common stock of Washington Gas Resources Corporation (Washington Gas Resources), Hampshire Gas Company (Hampshire) and Crab Run Gas Company. Washington Gas Resources owns all of the shares of common stock of four non-utility subsidiaries that include Washington Gas Energy Services, Inc. (WGEServices), Washington Gas Energy Systems, Inc. (WGESystems), Capitol Energy Ventures Corp. (CEV) and WGSW, Inc. Except where the content clearly indicates otherwise, “WGL Holdings,” “we,” “us” or “our” refers to the holding company or the consolidated entity of WGL Holdings and all of its subsidiaries. Unless otherwise noted, these notes apply equally to WGL Holdings and Washington Gas.

The interim consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Therefore, certain financial information and note disclosures accompanying annual financial statements prepared in accordance with generally accepted accounting principles in the United States of America (GAAP) are omitted in this interim report. The interim consolidated financial statements and accompanying notes should be read in conjunction with the combined Annual Report on Form 10-K for WGL Holdings and Washington Gas for the fiscal year ended September 30, 2010. Due to the seasonal nature of Washington Gas' and WGEServices' businesses, the results of operations for the periods presented in this report are not necessarily indicative of actual results for the full fiscal years ending September 30, 2011 and 2010 of either WGL Holdings or Washington Gas.

The accompanying unaudited consolidated financial statements for WGL Holdings and Washington Gas reflect all normal recurring adjustments that are necessary, in our opinion, to present fairly the results of operations in accordance with GAAP.

For a complete description of our accounting policies, refer to Note 1 of the Notes to Consolidated Financial Statements of the combined Annual Report on Form 10-K for WGL Holdings and Washington Gas for the fiscal year ended September 30, 2010.

Accounting Standards Adopted in the Current Period

Receivables. In July 2010, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2010-20, Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses (ASU 2010-20). ASU 2010-20 requires companies to provide more information in their disclosures about the credit quality of their financing receivables such as aging information and credit quality indicators, and the credit reserves held against them. Both new and existing disclosures must be disaggregated by portfolio segment or class. The disaggregation of information is based on how a company develops its allowance for credit losses and how it manages its credit exposure. ASU 2010-20 was effective for us on January 1, 2011. The adoption of this standard did not have a material effect on our consolidated financial statements.

Newly Issued Accounting Standards

Fair Value. In May 2011, the FASB issued ASU 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS (ASU 2011-04). ASU 2011-04 amends Accounting Standards Codification (ASC) Topic 820 to include a consistent definition of the term “fair value” and set forth common requirements for measuring fair value and disclosing information about fair value measurements in financial statements. ASU 2011-04 will be effective for us beginning January 1, 2012. We do not expect the adoption of this standard to have a material effect on our consolidated financial statements.

In January 2010, the FASB issued ASU 2010-06, Improving Disclosures about Fair Value Measurements (ASU 2010-06). ASU 2010-06 amends ASC Topic 820 to require the following additional disclosures regarding fair value measurements: (i) the amounts of transfers between Level 1 and Level 2 of the fair value hierarchy; (ii) reasons for any transfers in or out of Level 3 of the fair value hierarchy and (iii) the inclusion of information about purchases, sales, issuances and settlements in the reconciliation of recurring Level 3 measurements. ASU 2010-06 also amends ASC Topic 820 to clarify existing disclosure requirements, requiring fair value disclosures by class of assets and liabilities rather than by major category and the disclosure of valuation techniques and inputs used to determine the fair value of Level 2 and Level 3 assets and liabilities. The adoption of this standard affected and will affect disclosures only. With the exception of disclosures relating to purchases, sales issuances and settlements of recurring Level 3 measurements, ASU 2010-06 was effective for us on January 1, 2010. The adoption of these requirements did not have a material impact on our financial statements. Refer to Note 10 – Fair Value Measurements for the required disclosure under this standard. The disclosure requirements related to purchases, sales, issuances and settlements of recurring Level 3 measurements will be effective for us beginning October 1, 2011. We do not expect the adoption of the remaining requirements of this standard to have a material effect on our consolidated financial statements.

Other. In June 2011, the FASB issued ASU 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income (ASU 2011-05). ASU 2011-05 is intended to improve financial reporting by requiring companies to present items of net income in either one continuous statement, or in two separate but consecutive statements of net income and other comprehensive net income. The new guidance removes the current presentation options in ASC Topic 220. The requirements of ASU 2011-05 do not change which components of comprehensive income are recognized in net income or other comprehensive income, nor does the update change the computation of earnings per share (EPS). ASU 2011-05 will be effective for us on October 1, 2012. We do not expect the adoption of this standard to have a material effect on our financial position or results of operations.

- Definition

Description containing the entire organization, consolidation and basis of presentation of financial statements disclosure. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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