Document and Entity Information
Document and Entity Information - shares | 6 Months Ended | |
Jun. 30, 2015 | Jul. 30, 2015 | |
Entity [Abstract] | ||
Entity Registrant Name | Transcontinental Gas Pipe Line Company, LLC | |
Entity Central Index Key | 99,250 | |
Document Type | 10-Q | |
Document Period End Date | Jun. 30, 2015 | |
Amendment Flag | false | |
Document Fiscal Year Focus | 2,015 | |
Document Fiscal Period Focus | Q2 | |
Current Fiscal Year End Date | --12-31 | |
Entity Filer Category | Non-accelerated Filer | |
Entity Common Stock, Shares Outstanding | 0 |
Condensed Consolidated Statemen
Condensed Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | |
Operating Revenues: | ||||
Natural gas sales | $ 36,327 | $ 18,438 | $ 57,734 | $ 46,006 |
Natural gas transportation | 319,356 | 283,979 | 641,916 | 584,360 |
Natural gas storage | 34,322 | 34,665 | 69,467 | 71,260 |
Other | 916 | 1,372 | 1,827 | 2,490 |
Total operating revenues | 390,921 | 338,454 | 770,944 | 704,116 |
Operating Costs and Expenses: | ||||
Cost of natural gas sales | 36,327 | 18,438 | 57,734 | 46,006 |
Cost of natural gas transportation | 6,068 | 6,751 | 18,963 | 17,954 |
Operation and maintenance | 63,225 | 63,905 | 131,508 | 124,338 |
Administrative and general | 44,728 | 44,597 | 91,687 | 91,731 |
Depreciation and amortization | 67,387 | 67,702 | 133,692 | 137,611 |
Taxes - other than income taxes | 11,953 | 11,363 | 24,494 | 23,645 |
Other expense, net | 14,171 | 5,955 | 31,986 | 13,406 |
Total operating costs and expenses | 243,859 | 218,711 | 490,064 | 454,691 |
Operating Income | 147,062 | 119,743 | 280,880 | 249,425 |
Other (Income) and Other Expenses: | ||||
Interest expense | 20,656 | 21,197 | 41,463 | 43,156 |
Allowance for equity and borrowed funds used during construction (AFUDC) | (15,597) | (4,391) | (30,249) | (7,373) |
Equity in earnings of unconsolidated affiliates | (1,234) | (1,380) | (2,753) | (2,857) |
Miscellaneous other (income) expenses, net | 440 | (1,172) | 804 | (770) |
Total other (income) and other expenses | 4,265 | 14,254 | 9,265 | 32,156 |
Net Income | 142,797 | 105,489 | 271,615 | 217,269 |
Other comprehensive income (loss): | ||||
Equity interest in unrealized gain (loss) on interest rate hedges (includes $83 and $86 for the three months ended and $167 and $170 for the six months ended June 30, 2015 and June 30, 2014, respectively, of accumulated other comprehensive income reclassification for equity interest in realized losses on interest rate hedges) | 50 | (41) | (3) | (3) |
Comprehensive Income | $ 142,847 | $ 105,448 | $ 271,612 | $ 217,266 |
Condensed Consolidated Stateme3
Condensed Consolidated Statement of Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | ||
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | |
Accumulated other comprehensive income reclassification for realized losses on interest rate hedges | $ 83 | $ 86 | $ 167 | $ 170 |
Condensed Consolidated Balance
Condensed Consolidated Balance Sheet (Unaudited) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014 |
Current Assets: | ||
Cash | $ 0 | $ 173 |
Receivables: | ||
Affiliates | 431 | 654 |
Advances to affiliate | 187,980 | 306,910 |
Trade and other | 149,689 | 130,735 |
Transportation and exchange gas receivables | 9,578 | 3,485 |
Inventories | 58,985 | 66,699 |
Regulatory assets | 103,255 | 77,810 |
Other | 19,691 | 14,683 |
Total current assets | 529,609 | 601,149 |
Investments, at cost plus equity in undistributed earnings | 46,562 | 47,050 |
Property, Plant and Equipment: | ||
Natural gas transmission plant | 10,275,813 | 9,645,382 |
Less-Accumulated depreciation and amortization | 3,365,599 | 3,257,844 |
Total property, plant and equipment, net | 6,910,214 | 6,387,538 |
Other Assets: | ||
Regulatory assets | 222,983 | 239,080 |
Other | 80,830 | 75,066 |
Total other assets | 303,813 | 314,146 |
Total Assets | 7,790,198 | 7,349,883 |
Payables: | ||
Affiliates | 46,413 | 37,688 |
Trade and other | 291,300 | 268,740 |
Transportation and exchange gas payables | 3,832 | 4,701 |
Accrued liabilities | 97,495 | 104,105 |
Long-term debt due within one year | 200,000 | 0 |
Total current liabilities | 639,040 | 415,234 |
Long-Term Debt | 1,228,568 | 1,428,495 |
Other Long-Term Liabilities: | ||
Asset retirement obligations | 276,957 | 280,031 |
Regulatory liabilities | 354,219 | 326,083 |
Other | 76,490 | 35,728 |
Total other long-term liabilities | $ 707,666 | $ 641,842 |
Contingent Liabilities and Commitments (Note 2) | ||
Owner's Equity: | ||
Member's capital | $ 2,836,499 | $ 2,524,499 |
Retained earnings | 2,378,543 | 2,339,928 |
Accumulated other comprehensive loss | (118) | (115) |
Total owner's equity | 5,214,924 | 4,864,312 |
Total liabilities and owner's equity | $ 7,790,198 | $ 7,349,883 |
Condensed Consolidated Stateme5
Condensed Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands | 6 Months Ended | |
Jun. 30, 2015 | Jun. 30, 2014 | |
Cash flows from operating activities: | ||
Net income | $ 271,615 | $ 217,269 |
Adjustments to reconcile net income to net cash provided by (used in) operating activities: | ||
Depreciation and amortization | 133,692 | 137,153 |
Allowance for equity funds used during construction (equity AFUDC) | (23,123) | (5,469) |
Changes in operating assets and liabilities: | ||
Receivables - affiliates | 223 | 1,808 |
Receivables - trade and other | (18,954) | 37,509 |
Transportation and exchange gas receivable | (6,093) | 2,506 |
Inventories | 7,714 | (26,632) |
Payables - affiliates | 8,725 | 15,596 |
Payables - trade | 9,319 | (103,555) |
Accrued liabilities | (9,048) | (10,567) |
Reserve for rate refunds | 0 | 20,075 |
Asset retirement obligation removal costs | (972) | (7,555) |
Other, net | 13,482 | (4,602) |
Net cash provided by operating activities | 386,580 | 273,536 |
Cash flows from financing activities: | ||
Cash distributions to parent | (233,000) | (235,000) |
Cash contributions from parent | 312,000 | 94,000 |
Other, net | 13,539 | 6,830 |
Net cash provided by (used in) financing activities | 92,539 | (134,170) |
Cash flows from investing activities: | ||
Property, plant and equipment additions, net of equity AFUDC | (633,476) | (219,971) |
Contributions and advances for construction costs | 32,600 | 23,801 |
Disposal of property, plant and equipment, net | 620 | 2,958 |
Advances to affiliate, net | 118,930 | 59,578 |
Return of capital from unconsolidated affiliates | 902 | 469 |
Purchase of ARO Trust investments | (42,022) | (35,012) |
Proceeds from sale of ARO Trust investments | 27,075 | 27,411 |
Proceeds from insurance | 14,804 | 0 |
Other, net | 1,275 | 1,414 |
Net cash used in investing activities | (479,292) | (139,352) |
Increase (decrease) in cash | (173) | 14 |
Cash at beginning of period | 173 | 113 |
Cash at end of period | 0 | 127 |
Increase to property, plant and equipment, net of equity AFUDC | (630,346) | (253,298) |
Changes in related accounts payable and accrued liabilities | (3,130) | 33,327 |
Property, plant and equipment additions, net of equity AFUDC | $ (633,476) | $ (219,971) |
Basis of Presentation (Notes)
Basis of Presentation (Notes) | 6 Months Ended |
Jun. 30, 2015 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Basis of Presentation | BASIS OF PRESENTATION In this report, Transco (which includes Transcontinental Gas Pipe Line Company, LLC and, unless the context otherwise requires, all of our majority-owned subsidiaries) is at times referred to in the first person as “we,” “us” or “our.” Transco is indirectly owned by Williams Partners L.P. (WPZ), a publicly traded Delaware limited partnership, which is consolidated by The Williams Companies, Inc. (Williams). On February 2, 2015, WPZ was merged into Access Midstream Partners, L.P. (ACMP), another publicly traded limited partnership consolidated by Williams. ACMP was the surviving partnership and was subsequently renamed Williams Partners, L.P. At June 30, 2015 , Williams holds an approximate 60 percent interest in WPZ, comprised of an approximate 58 percent limited partner interest and all of the 2 percent general partner interest. General The condensed consolidated unaudited financial statements include our accounts and the accounts of the subsidiaries we control. Companies in which we and our subsidiaries own 20 percent to 50 percent of the voting common stock or otherwise exercise significant influence over operating and financial policies of the company are accounted for under the equity method. The equity method investments as of June 30, 2015 and December 31, 2014 consist of Cardinal Pipeline Company, LLC (Cardinal) with an ownership interest of approximately 45 percent and Pine Needle LNG Company, LLC (Pine Needle) with an ownership interest of 35 percent. We received distributions associated with our equity method investments totaling $3.2 million and $4.4 million in the six months ended June 30, 2015 and June 30, 2014 , respectively. Included in the distributions are $0.9 million and $0.5 million return of capital in 2015 and 2014, respectively. The condensed consolidated unaudited financial statements have been prepared from our books and records. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (GAAP) have been condensed or omitted in this Form 10-Q pursuant to Securities and Exchange Commission rules and regulations. The condensed consolidated unaudited financial statements include all normal recurring adjustments and others which, in the opinion of our management, are necessary to present fairly our interim financial statements. These condensed consolidated unaudited financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in our 2014 Annual Report on Form 10-K. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated unaudited financial statements and accompanying notes. Actual results could differ from those estimates. Accounting Standards Issued But Not Yet Adopted In July 2015, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2015-11 “Simplifying the Measurement of Inventory” (ASU 2015-11). ASU 2015-11 simplifies the guidance on the subsequent measurement of inventory, excluding inventory measured using last-in, first out or the retail inventory method. Under the new standard, in scope inventory should be measured at the lower of cost and net realizable value. The new standard is effective for interim and annual periods beginning after December 15, 2016, with early adoption permitted. We are evaluating the impact of the new standard. In April 2015, the FASB issued ASU 2015-3 “Interest - Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs” (ASU 2015-3). ASU 2015-3 simplifies the presentation of debt issuance costs by requiring such costs be presented as a deduction from the corresponding debt liability. The guidance is effective for financial statements issued for reporting periods beginning after December 15, 2015, and interim periods within the reporting periods and requires retrospective presentation. We are evaluating the impact of the new standard. In February 2015, the FASB issued ASU 2015-2 “Amendments to the Consolidation Analysis” (ASU 2015-2). ASU 2015-2 alters the models used to determine consolidation conclusions for certain entities, including limited partnerships, and may require additional disclosures. The ASU is effective for financial statements issued for reporting periods beginning after December 15, 2015, and interim periods within the reporting periods with either retrospective or modified retrospective presentation allowed. We are currently evaluating the impact of the new standard on our consolidated financial statements. In May 2014, the FASB issued ASU 2014-09 establishing Accounting Standards Codification Topic 606, “Revenue from Contracts with Customers” (ASC 606). ASC 606 establishes a comprehensive new revenue recognition model designed to depict the transfer of goods or services to a customer in an amount that reflects the consideration the entity expects to be entitled to receive in exchange for those goods or services and requires significantly enhanced revenue disclosures. The standard is effective for annual reporting periods beginning after December 15, 2017, and interim periods within the reporting period. ASC 606 allows either full retrospective or modified retrospective transition and early adoption is permitted for annual periods beginning after December 15, 2016. We continue to evaluate both the impact of this new standard on our consolidated financial statements and the transition method we will utilize for adoption. |
Contingent Liabilities and Comm
Contingent Liabilities and Commitments (Notes) | 6 Months Ended |
Jun. 30, 2015 | |
Commitments and Contingencies Disclosure [Abstract] | |
Contingent Liabilities and Commitments | CONTINGENT LIABILITIES AND COMMITMENTS Rate Matters General rate case (Docket No. RP06-569) On August 31, 2006, we submitted to the Federal Energy Regulatory Commission (FERC) a general rate filing principally designed to recover increased costs. The rates became effective March 1, 2007, subject to refund and the outcome of a hearing. All issues in this proceeding except one have been resolved by settlement. The one issue reserved for litigation or further settlement relates to our proposal to change the design of the rates for service under one of our storage rate schedules, which was implemented subject to refund on March 1, 2007. A hearing on that issue was held before a FERC Administrative Law Judge (ALJ) in July 2008. In November 2008, the ALJ issued an initial decision in which he determined that our proposed incremental rate design is unjust and unreasonable. On January 21, 2010, the FERC reversed the ALJ’s initial decision and approved our proposed incremental rate design. Certain parties sought rehearing of the FERC’s order and, on April 2, 2012, the FERC denied the rehearing request. On June 1, 2012, one of the parties filed an appeal in the U.S. Court of Appeals for the D.C. Circuit (D.C. Circuit). On February 21, 2014, the D.C. Circuit issued an opinion that vacated and remanded the FERC's order because the FERC did not adequately support its conclusions. On October 16, 2014, the FERC issued an order establishing a "paper hearing" and requesting briefs on certain questions raised by the D.C. Circuit's opinion. Parties to the proceeding filed initial and reply briefs on February 6, 2015 and March 6, 2015, respectively. We intend to continue to pursue approval of our proposed rate design. If we are unsuccessful, it is reasonably possible that refunds could be as much as $17 million at June 30, 2015. Environmental Matters We have had studies underway for many years to test some of our facilities for the presence of toxic and hazardous substances such as polychlorinated biphenyls (PCBs) and mercury to determine to what extent, if any, remediation may be necessary. We have also similarly evaluated past on-site disposal of hydrocarbons at a number of our facilities. We have worked closely with and responded to data requests from the U.S. Environmental Protection Agency (EPA) and state agencies regarding such potential contamination of certain of our sites. On the basis of the findings to date, we estimate that environmental assessment and remediation costs under various federal and state statutes will total approximately $4 million to $6 million (including both expense and capital expenditures), measured on an undiscounted basis, and will substantially be spent over the next three to four years. This estimate depends on a number of assumptions concerning the scope of remediation that will be required at certain locations and the cost of the remedial measures. We are conducting environmental assessments and implementing a variety of remedial measures that may result in increases or decreases in the total estimated costs. At June 30, 2015 , we had a balance of approximately $1.8 million for the expense portion of these estimated costs recorded in current liabilities ($0.8 million) and other long-term liabilities ($1.0 million) in the accompanying Condensed Consolidated Balance Sheet. At December 31, 2014 , we had a balance of approximately $2.7 million for the expense portion of these estimated costs recorded in current liabilities ($0.8 million) and other long-term liabilities ($1.9 million) in the accompanying Condensed Consolidated Balance Sheet. We have been identified as a potentially responsible party (PRP) at various Superfund and state waste disposal sites. Based on present volumetric estimates and other factors, our estimated aggregate exposure for remediation of these sites is less than $0.5 million. The estimated remediation costs for all of these sites are included in the $4 million to $6 million range discussed above. Liability under the Comprehensive Environmental Response, Compensation and Liability Act and applicable state law can be joint and several with other PRPs. Although volumetric allocation is a factor in assessing liability, it is not necessarily determinative; thus, the ultimate liability could be substantially greater than the amounts described above. In March 2008, the EPA promulgated a new, lower National Ambient Air Quality Standard (NAAQS) for ground-level ozone. In May 2012, the EPA completed designation of new eight-hour ozone non-attainment areas. Several facilities are located in 2008 ozone non-attainment areas. To date, no federal actions have been proposed to mandate additional emission controls at these facilities. Pursuant to recently proposed state regulatory actions associated with implementation of the 2008 ozone standard, we anticipate that some facilities may be subject to increased controls within five years. As a result, the cost of additions to property, plant, and equipment is expected to increase. We are unable at this time to estimate with any certainty the cost of additions that may be required to meet the proposed regulations. In December 2014, the EPA proposed to further reduce the ground-level ozone NAAQS from the March 2008 levels; the EPA is anticipated to finalize any revisions in late 2015. Revisions to the ozone NAAQS will result in additional federal and state regulatory actions that may impact our operations. As a result, the cost of additions to property, plant and equipment is expected to increase. We are unable at this time to estimate with any certainty the cost of additions that may be required to meet new regulations. On January 22, 2010, the EPA set a new one-hour nitrogen dioxide (NO 2 ) NAAQS. The effective date of the new NO 2 standard was April 12, 2010. On January 20, 2012, the EPA determined pursuant to available information that no area in the country is violating the 2010 NO 2 NAAQS and thus designated all areas of the country as “unclassifiable/attainment.” Also, at that time, the EPA noted its plan to deploy an expanded NO 2 monitoring network beginning in 2013. However, on October 5, 2012, the EPA proposed a graduated implementation of the monitoring network between January 1, 2014 and January 1, 2017. Once three years of data is collected from the new monitoring network, the EPA will reassess attainment status with the one-hour NO 2 NAAQS. Until that time, the EPA or states may require ambient air quality modeling on a case by case basis to demonstrate compliance with the NO 2 standard. Because we are unable to predict the outcome of the EPA’s or states’ future assessment using the new monitoring network, we are unable to estimate the cost of additions that may be required to meet this regulation. We consider prudently incurred environmental assessment and remediation costs and the costs associated with compliance with environmental standards to be recoverable through rates. To date, we have been permitted recovery of environmental costs, and it is our intent to continue seeking recovery of such costs through future rate filings. As a result, as estimated costs of environmental assessment and remediation are incurred, they are recorded as regulatory assets in the Condensed Consolidated Balance Sheet until collected through rates. At June 30, 2015, we had a balance of approximately $1.1 million of uncollected environmental related regulatory assets recorded in current assets in the accompanying Condensed Consolidated Balance Sheet. At December 31, 2014, we had a balance of approximately $1.7 million of uncollected environmental related regulatory assets recorded in current assets ($1.2 million) and other assets ($0.5 million) in the accompanying Condensed Consolidated Balance Sheet. Other Matters Various other proceedings are pending against us and are considered incidental to our operations. Summary We estimate that for all matters for which we are able to reasonably estimate a range of loss, including those noted above and others that are not individually significant, our aggregate reasonably possible losses beyond amounts accrued for all of our contingent liabilities are immaterial to our expected future annual results of operations, liquidity and financial position. These calculations have been made without consideration of any potential recovery from third parties. We have disclosed all significant matters for which we are unable to reasonably estimate a range of possible loss. |
Debt and Financing Arrangements
Debt and Financing Arrangements (Notes) | 6 Months Ended |
Jun. 30, 2015 | |
Debt Disclosure [Abstract] | |
Debt and Financing Arrangements | DEBT AND FINANCING ARRANGEMENTS Credit Facility On February 2, 2015, the previous credit facility to which we were a party was terminated in connection with the merger of the former Williams Partners L.P. with and into ACMP. Simultaneously, we along with WPZ and Northwest Pipeline LLC (Northwest), as co-borrowers, entered into a new $3.5 billion credit facility. Total letter of credit capacity available to WPZ under the $3.5 billion credit facility is $1.125 billion. We may borrow up to $500 million under this credit facility to the extent not otherwise utilized by WPZ and Northwest. At June 30, 2015, no letters of credit have been issued and no loans are outstanding under our credit facility. WPZ participates in a commercial paper program, and WPZ management considers amounts outstanding under this program to be a reduction of available capacity under the credit facility. The program allows a maximum outstanding amount at any time of $3 billion of unsecured commercial paper notes. At June 30, 2015 , WPZ had approximately $1.7 billion of commercial paper outstanding. Long-Term Debt Due Within One Year The long-term debt due within one year at June 30, 2015 is associated with the $200 million of 6.4 percent notes that mature on April 15, 2016. |
ARO Trust (Notes)
ARO Trust (Notes) | 6 Months Ended |
Jun. 30, 2015 | |
Investments, Debt and Equity Securities [Abstract] | |
ARO Trust | ARO TRUST Available-for-Sale Investments We are entitled to collect in rates the amounts necessary to fund our asset retirement obligations (ARO). We deposit monthly, into an external trust account (ARO Trust), the revenues specifically designated for ARO. The ARO Trust carries a moderate risk portfolio. We measure the financial instruments held in our ARO Trust at fair value. However, in accordance with the ASC Topic 980, Regulated Operations, both realized and unrealized gains and losses of the ARO Trust are recorded as regulatory assets or liabilities. Effective March 1, 2013, the annual funding obligation is approximately $36.4 million, with deposits made monthly. Investments in available-for-sale securities within the ARO Trust at fair value were as follows (in millions): June 30, 2015 December 31, 2014 Amortized Cost Basis Fair Value Amortized Cost Basis Fair Value Cash and Money Market Funds $ 5.0 $ 5.0 $ 2.1 $ 2.1 U.S. Equity Funds 18.0 22.2 15.0 19.0 International Equity Funds 11.7 12.2 8.0 8.2 Municipal Bond Funds 23.0 23.2 17.7 18.2 Total $ 57.7 $ 62.6 $ 42.8 $ 47.5 |
Fair Value Measurements (Notes)
Fair Value Measurements (Notes) | 6 Months Ended |
Jun. 30, 2015 | |
Fair Value Disclosures [Abstract] | |
Fair Value Measurements | FAIR VALUE MEASUREMENTS The following table presents, by level within the fair value hierarchy, certain of our financial assets and liabilities. The carrying values of cash, short-term financial assets (advances to affiliate) that have variable interest rates, accounts receivable and accounts payable approximate fair value because of the short-term nature of these instruments. Therefore, these assets and liabilities are not presented in the following table. Fair Value Measurements Using Carrying Amount Fair Value Quoted Prices In Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (Millions) Assets (liabilities) at June 30, 2015: Measured on a recurring basis: ARO Trust investments $ 62.6 $ 62.6 $ 62.6 $ — $ — Additional disclosures: Notes receivable 2.5 2.5 — 2.5 — Long-term debt (1,428.6 ) (1,546.7 ) — (1,546.7 ) — Assets (liabilities) at December 31, 2014: Measured on a recurring basis: ARO Trust investments $ 47.5 $ 47.5 $ 47.5 $ — $ — Additional disclosures: Notes receivable 3.8 3.8 — 3.8 — Long-term debt (1,428.5 ) (1,506.4 ) — (1,506.4 ) — Fair Value of Methods The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value: ARO Trust investments — We deposit a portion of our collected rates, pursuant to the terms of the Docket No. RP12-993 rate case settlement, into the ARO Trust, which is specifically designated to fund future asset retirement obligations. The ARO Trust invests in a portfolio of actively traded mutual funds that are measured at fair value on a recurring basis based on quoted prices in an active market, are classified as available-for-sale and are reported in Other Assets-Other in the Condensed Consolidated Balance Sheet. However, both realized and unrealized gains and losses are ultimately recorded as regulatory assets or liabilities. See Note 4 for more information regarding the ARO Trust. Notes receivable — The disclosed fair value of our notes receivable is determined by an income approach, which considers the underlying contract amounts and our assessment of our ability to recover these amounts. The current portion is reported in Trade and other receivables, and the noncurrent portion is reported in Other Assets-Other in the Condensed Consolidated Balance Sheet. Long-term debt — The disclosed fair value of our long-term debt is determined by a market approach using broker quoted indicative period-end bond prices. The quoted prices are based on observable transactions in less active markets for our debt or similar instruments. Reclassifications of fair value between Level 1, Level 2, and Level 3 of the fair value hierarchy, if applicable, are made at the end of each quarter. No transfers between Level 1 and Level 2 occurred during the six months ended June 30, 2015 or 2014 . |
Transactions with Affiliates (N
Transactions with Affiliates (Notes) | 6 Months Ended |
Jun. 30, 2015 | |
Related Party Transactions [Abstract] | |
Transactions with Affiliates | TRANSACTIONS WITH AFFILIATES We are a participant in WPZ’s cash management program, and we make advances to and receive advances from WPZ. At June 30, 2015 and December 31, 2014 , our advances to WPZ totaled approximately $188.0 million and $306.9 million , respectively. These advances are represented by demand notes and are classified as Current Assets in the accompanying Condensed Consolidated Balance Sheet. Advances are stated at the historical carrying amounts. Interest income is recognized when chargeable and collectability is reasonably assured. The interest rate on these intercompany demand notes is based upon the daily overnight investment rate paid on WPZ’s excess cash at the end of each month. At June 30, 2015 , the interest rate was 0.01 percent. Included in Operating Revenues in the accompanying Condensed Consolidated Statement of Comprehensive Income are revenues received from affiliates of $0.7 million and $1.9 million for the three and six months ended June 30, 2015 , respectively, and $1.5 million and $2.8 million for the three and six months ended June 30, 2014, respectively. The rates charged to provide sales and services to affiliates are the same as those that are charged to similarly-situated nonaffiliated customers. Included in Cost of natural gas sales in the accompanying Condensed Consolidated Statement of Comprehensive Income are cost of gas purchased from affiliates of $1.7 million and $4.2 million for the three and six months ended June 30, 2015 , respectively and $3.4 million and $6.8 million for the three and six months ended June 30, 2014, respectively. All gas purchases are made at market or contract prices. We have no employees. Services necessary to operate our business are provided to us by Williams and certain affiliates of Williams. We reimburse Williams and its affiliates for all direct and indirect expenses incurred or payments made (including salary, bonus, incentive compensation and benefits) in connection with these services. Employees of Williams also provide general, administrative and management services to us, and we are charged for certain administrative expenses incurred by Williams. These charges are either directly identifiable or allocated to our assets. Direct charges are for goods and services provided by Williams at our request. Allocated charges are based on a three-factor formula, which considers revenues; property, plant and equipment; and payroll. In management’s estimation, the allocation methodologies used are reasonable and result in a reasonable allocation to us of our costs of doing business incurred by Williams. We were billed $81.6 million and $162.6 million in the three and six months ended June 30, 2015 , respectively, and $74.5 million and $149.7 million in the three and six months ended June 30, 2014, respectively, for these services. Such expenses are primarily included in Administrative and general and Operation and maintenance expenses in the accompanying Condensed Consolidated Statement of Comprehensive Income. We provide services to certain of our affiliates. We recorded reductions in operating expenses for services provided to and reimbursed by our affiliates of $1.5 million and $2.7 million for the three and six months ended June 30, 2015, respectively, and $1.9 million and $3.2 million for the three and six months ended June 30, 2014, respectively. In the first quarter of 2014, pursuant to construction agreements, we received pre-payments from Williams Field Services Group, LLC of $4.2 million associated with capital projects. We made equity distributions totaling $233.0 million and $235.0 million during the six months ended June 30, 2015 and 2014 , respectively. During July 2015, we made an additional distribution of $141.0 million. Our parent made contributions to us totaling $312.0 million and $94.0 million in the six months ended June 30, 2015 and 2014 , respectively, to fund a portion of our expenditures for additions to property, plant and equipment. In July 2015, our parent made an additional $179.0 million contribution to us. |
Other (Notes)
Other (Notes) | 6 Months Ended |
Jun. 30, 2015 | |
Other Income and Expenses [Abstract] | |
Other | OTHER For the six months ended June 30, 2014, we capitalized $3.5 million of project feasibility cost associated with various projects, which had been expensed in prior periods in Other expense, net , upon determining that the projects were probable of development. |
ARO Trust (Tables)
ARO Trust (Tables) | 6 Months Ended |
Jun. 30, 2015 | |
Investments, Debt and Equity Securities [Abstract] | |
ARO Trust | Investments in available-for-sale securities within the ARO Trust at fair value were as follows (in millions): June 30, 2015 December 31, 2014 Amortized Cost Basis Fair Value Amortized Cost Basis Fair Value Cash and Money Market Funds $ 5.0 $ 5.0 $ 2.1 $ 2.1 U.S. Equity Funds 18.0 22.2 15.0 19.0 International Equity Funds 11.7 12.2 8.0 8.2 Municipal Bond Funds 23.0 23.2 17.7 18.2 Total $ 57.7 $ 62.6 $ 42.8 $ 47.5 |
Fair Value Measurements (Tables
Fair Value Measurements (Tables) | 6 Months Ended |
Jun. 30, 2015 | |
Fair Value Disclosures [Abstract] | |
Fair Value Measurements | The following table presents, by level within the fair value hierarchy, certain of our financial assets and liabilities. The carrying values of cash, short-term financial assets (advances to affiliate) that have variable interest rates, accounts receivable and accounts payable approximate fair value because of the short-term nature of these instruments. Therefore, these assets and liabilities are not presented in the following table. Fair Value Measurements Using Carrying Amount Fair Value Quoted Prices In Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (Millions) Assets (liabilities) at June 30, 2015: Measured on a recurring basis: ARO Trust investments $ 62.6 $ 62.6 $ 62.6 $ — $ — Additional disclosures: Notes receivable 2.5 2.5 — 2.5 — Long-term debt (1,428.6 ) (1,546.7 ) — (1,546.7 ) — Assets (liabilities) at December 31, 2014: Measured on a recurring basis: ARO Trust investments $ 47.5 $ 47.5 $ 47.5 $ — $ — Additional disclosures: Notes receivable 3.8 3.8 — 3.8 — Long-term debt (1,428.5 ) (1,506.4 ) — (1,506.4 ) — |
Basis of Presentation (Details)
Basis of Presentation (Details) - USD ($) $ in Thousands | 6 Months Ended | ||
Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||
Parent, total parent ownership percentage | 60.00% | ||
Parent, limited partner ownership percentage | 58.00% | ||
Parent, general partner ownership percentage | 2.00% | ||
Schedule of Equity Method Investments [Line Items] | |||
Equity method investment, distributions | $ 3,200 | $ 4,400 | |
Equity method investment, return of capital | $ 902 | $ 469 | |
Cardinal Pipeline Company, LLC [Member] | |||
Schedule of Equity Method Investments [Line Items] | |||
Equity method investment, ownership percentage | 45.00% | 45.00% | |
Pine Needle LNG Company, LLC [Member] | |||
Schedule of Equity Method Investments [Line Items] | |||
Equity method investment, ownership percentage | 35.00% | 35.00% |
Contingent Liabilities and Co16
Contingent Liabilities and Commitments (Details) - USD ($) $ in Thousands | 6 Months Ended | |
Jun. 30, 2015 | Dec. 31, 2014 | |
Commitments and Contingencies Disclosure [Abstract] | ||
Potential refund obligation | $ 17,000 | |
Site Contingency [Line Items] | ||
Regulatory assets, current | 103,255 | $ 77,810 |
Regulatory assets, noncurrent | 222,983 | 239,080 |
Environmental assessment and remediation [Member] | ||
Site Contingency [Line Items] | ||
Environmental assessment and remediation costs, low estimate | 4,000 | |
Environmental assessment and remediation costs, high estimate | 6,000 | |
Accrued environmental assessment and remediation costs, total | 1,800 | 2,700 |
Accrued environmental assessment and remediation costs, current | 800 | 800 |
Accrued environmental assessment and remediation costs, noncurrent | 1,000 | 1,900 |
Regulatory assets, total | 1,100 | 1,700 |
Regulatory assets, current | 1,100 | 1,200 |
Regulatory assets, noncurrent | $ 0 | $ 500 |
Environmental assessment and remediation [Member] | Minimum [Member] | ||
Site Contingency [Line Items] | ||
Expected duration of environmental assessment and remediation spending | 3 years | |
Environmental assessment and remediation [Member] | Maximum [Member] | ||
Site Contingency [Line Items] | ||
Expected duration of environmental assessment and remediation spending | 4 years | |
Potentially responsible party at various Superfund and state waste disposal sites [Member] | ||
Site Contingency [Line Items] | ||
Environmental assessment and remediation costs, high estimate | $ 500 |
Debt and Financing Arrangemen17
Debt and Financing Arrangements (Details) - USD ($) | Jun. 30, 2015 | Feb. 02, 2015 |
Williams Partners L.P. [Member] | ||
Line of Credit Facility [Line Items] | ||
Line of credit facility, maximum borrowing capacity | $ 3,500,000,000 | |
Commercial paper, outstanding | $ 1,700,000,000 | |
$3.5 billion credit facility [Member] | ||
Line of Credit Facility [Line Items] | ||
Line of credit facility, maximum borrowing capacity | 500,000,000 | |
Letters of credit outstanding, amount | 0 | |
Line of credit facility, amount outstanding | 0 | |
$3.5 billion credit facility [Member] | Williams Partners L.P. [Member] | Commercial paper [Member] | ||
Line of Credit Facility [Line Items] | ||
Line of credit facility, maximum borrowing capacity | 3,000,000,000 | |
$3.5 billion credit facility [Member] | Williams Partners L.P. [Member] | Letter of credit [Member] | ||
Line of Credit Facility [Line Items] | ||
Line of credit facility, maximum borrowing capacity | $ 1,125,000,000 |
Debt and Financing Arrangemen18
Debt and Financing Arrangements Long-term Debt Instruments (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014 |
Debt Instrument [Line Items] | ||
Long-term debt due within one year | $ 200,000 | $ 0 |
6.4 percent notes | 6.40% | |
6.4% due 2016 [Member] | ||
Debt Instrument [Line Items] | ||
Long-term debt due within one year | $ 200,000 |
ARO Trust (Details)
ARO Trust (Details) - USD ($) $ in Millions | Jun. 30, 2015 | Dec. 31, 2014 |
Investments, Debt and Equity Securities [Abstract] | ||
Annual funding obligation | $ 36.4 | |
Schedule of Available-for-sale Securities [Line Items] | ||
Available-for-sale securities, amortized cost basis | 57.7 | $ 42.8 |
Available-for-sale securities, fair value | 62.6 | 47.5 |
Cash and Money Market Funds [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Available-for-sale securities, amortized cost basis | 5 | 2.1 |
Available-for-sale securities, fair value | 5 | 2.1 |
U.S. Equity Funds [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Available-for-sale securities, amortized cost basis | 18 | 15 |
Available-for-sale securities, fair value | 22.2 | 19 |
International Equity Funds [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Available-for-sale securities, amortized cost basis | 11.7 | 8 |
Available-for-sale securities, fair value | 12.2 | 8.2 |
Municipal Bond Funds [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Available-for-sale securities, amortized cost basis | 23 | 17.7 |
Available-for-sale securities, fair value | $ 23.2 | $ 18.2 |
Fair Value Measurements (Detail
Fair Value Measurements (Details) - USD ($) | Jun. 30, 2015 | Dec. 31, 2014 | Jun. 30, 2014 |
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] | |||
ARO Trust investments | $ 62,600,000 | $ 47,500,000 | |
Fair Value, Transfers Between Level 1 and Level 2, Description and Policy [Abstract] | |||
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount | 0 | $ 0 | |
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount | 0 | 0 | |
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount | 0 | 0 | |
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount | 0 | $ 0 | |
Fair Value, Inputs, Level 1 [Member] | |||
Additional Fair Value Elements [Abstract] | |||
Notes receivable, Fair Value Disclosure | 0 | 0 | |
Long-term debt, Fair Value | 0 | 0 | |
Fair Value, Inputs, Level 2 [Member] | |||
Additional Fair Value Elements [Abstract] | |||
Notes receivable, Fair Value Disclosure | 2,500,000 | 3,800,000 | |
Long-term debt, Fair Value | (1,546,700,000) | (1,506,400,000) | |
Fair Value, Inputs, Level 3 [Member] | |||
Additional Fair Value Elements [Abstract] | |||
Notes receivable, Fair Value Disclosure | 0 | 0 | |
Long-term debt, Fair Value | 0 | 0 | |
Reported Value Measurement [Member] | |||
Additional Fair Value Elements [Abstract] | |||
Notes receivable, Fair Value Disclosure | 2,500,000 | 3,800,000 | |
Long-term debt, Fair Value | (1,428,600,000) | (1,428,500,000) | |
Estimate of Fair Value Measurement [Member] | |||
Additional Fair Value Elements [Abstract] | |||
Notes receivable, Fair Value Disclosure | 2,500,000 | 3,800,000 | |
Long-term debt, Fair Value | (1,546,700,000) | (1,506,400,000) | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | |||
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] | |||
ARO Trust investments | 62,600,000 | 47,500,000 | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | |||
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] | |||
ARO Trust investments | 0 | 0 | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | |||
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] | |||
ARO Trust investments | 0 | 0 | |
Fair Value, Measurements, Recurring [Member] | Reported Value Measurement [Member] | |||
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] | |||
ARO Trust investments | 62,600,000 | 47,500,000 | |
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member] | |||
Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract] | |||
ARO Trust investments | $ 62,600,000 | $ 47,500,000 |
Transactions with Affiliates (D
Transactions with Affiliates (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | ||||
Jul. 30, 2015USD ($) | Jun. 30, 2015USD ($)employee | Jun. 30, 2014USD ($) | Jun. 30, 2015USD ($)employee | Jun. 30, 2014USD ($) | Dec. 31, 2014USD ($) | Mar. 31, 2014USD ($) | |
Related Party Transaction [Line Items] | |||||||
Advances to affiliate | $ 187,980 | $ 187,980 | $ 306,910 | ||||
Related party transaction, rate | 0.01% | ||||||
Operating revenues, related party | 700 | $ 1,500 | $ 1,900 | $ 2,800 | |||
Cost of natural gas sales, related party | $ 1,700 | 3,400 | $ 4,200 | 6,800 | |||
Entity number of employees | employee | 0 | 0 | |||||
Expenses, related party | $ 81,600 | 74,500 | $ 162,600 | 149,700 | |||
Cash distributions to parent | 233,000 | 235,000 | |||||
Cash contributions from parent | 312,000 | 94,000 | |||||
Affiliated Entity [Member] | |||||||
Related Party Transaction [Line Items] | |||||||
Expenses, related party | (1,500) | $ (1,900) | (2,700) | $ (3,200) | |||
Williams Partners L.P. [Member] | |||||||
Related Party Transaction [Line Items] | |||||||
Advances to affiliate | $ 188,000 | $ 188,000 | $ 306,900 | ||||
Williams Field Services Group, LLC [Member] | |||||||
Related Party Transaction [Line Items] | |||||||
Pre-payments for capital projects | $ 4,200 | ||||||
Subsequent Event [Member] | |||||||
Related Party Transaction [Line Items] | |||||||
Cash distributions to parent | $ 141,000 | ||||||
Cash contributions from parent | $ 179,000 |
Other (Details)
Other (Details) $ in Millions | 6 Months Ended |
Jun. 30, 2014USD ($) | |
Other Income and Expenses [Abstract] | |
Capitalization of project feasibility costs previously expensed | $ 3.5 |