General	12 Months Ended
Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	General Kinder Morgan Management, LLC is a publicly traded Delaware limited liability company that was formed on February 14, 2001. Kinder Morgan G.P., Inc., of which Kinder Morgan, Inc. indirectly owns all of the outstanding common equity, is the general partner of Kinder Morgan Energy Partners, L.P. (KMP) and owns all of our voting shares. Kinder Morgan G.P., Inc., pursuant to a delegation of control agreement among us, Kinder Morgan G.P., Inc. and KMP, has delegated to us, to the fullest extent permitted under Delaware law and KMP’s limited partnership agreement, all of its rights and powers to manage and control the business and affairs of KMP, subject to the general partner’s right to approve specified actions. We are a limited partner in KMP through our ownership of its i-units, and manage and control its business and affairs pursuant to the delegation of control agreement. Our success is dependent upon our operation and management of KMP and its resulting performance, see Note 5 for summarized income statement and balance sheet information for KMP. Unless the context requires otherwise, references to “we,” “us,” “our,” or the “Company” are intended to mean Kinder Morgan Management, LLC and its consolidated subsidiary, Kinder Morgan Services LLC. KMI’s Initial Public Offering On February 16, 2011, Kinder Morgan, Inc. (KMI) completed an initial public offering of its common stock. Prior to the closing of the initial public offering, its outstanding units were converted into shares of its capital stock. All of the common stock that was sold in the offering was sold by its existing investors consisting of funds advised by or affiliated with Goldman Sachs & Co., Highstar Capital LP, The Carlyle Group and Riverstone Holdings LLC. No members of management sold shares in the offering, and KMI did not receive any proceeds from the offering. During 2012, the funds advised by or affiliated with Goldman Sachs & Co., The Carlyle Group and Riverstone Holdings LLC, sold their remaining interests in KMI. KMI’s Acquisition of El Paso Corporation Effective on May 25, 2012, KMI completed the acquisition of all of the outstanding shares of El Paso Corporation, referred to as “EP.” EP owns one of North America’s largest interstate natural gas pipeline systems and an emerging midstream business. EP also owns a 41% limited partner interest and the 2% general partner interest in El Paso Pipeline Partners, L.P., referred to as “EPB.” The combined enterprise, including the associated master limited partnerships, KMP and EPB, owns an interest in or operates more than 75,000 miles of pipeline and 180 terminals and represents the largest natural gas pipeline network in the United States, the largest independent transporter of petroleum products in the United States, the largest transporter of CO₂ in the United States, the second largest oil producer in Texas and the largest independent terminal owner/operator in the United States. Effective November 1, 2012, KMI sold KMP’s FTC Natural Gas Pipelines disposal group to Tallgrass Energy Partners, L.P. for approximately $1.8 billion (before selling costs) to satisfy terms of a March 15, 2012 agreement with the U.S. Federal Trade Commission (FTC) to divest certain of its assets in order to receive regulatory approval for its EP acquisition. KMP’s FTC Natural Gas Pipelines disposal group’s assets included (i) Kinder Morgan Interstate Gas Transmission natural gas pipeline system; (ii) Trailblazer natural gas pipeline system; (iii) Casper and Douglas natural gas processing operations; and (iv) 50% equity investment in the Rockies Express natural gas pipeline system. Effective August 1, 2012, KMP acquired the full ownership interest in the Tennessee Gas natural gas pipeline system and a 50% ownership interest in the El Paso Natural Gas pipeline system from KMI for an aggregate consideration of approximately $6.2 billion. In this report, we refer to KMP’s acquisition of assets from KMI as the drop-down transaction and we refer to the combined group of assets acquired from KMI as the drop-down asset group. KMI sold the drop-down asset group to KMP in order to replace KMP’s FTC Natural Gas Pipelines disposal group that it divested on November 1, 2012. Also, see Note 5. KMI acquired the drop-down asset group from EP on May 25, 2012 (discussed above). Pursuant to current accounting principles in conformity with the Codification, KMI accounted for its acquisition from EP of the drop-down asset group under the purchase accounting method, and KMP accounted for the drop-down transaction as a transfer of net assets between entities under common control. Accordingly, the KMP information in Note 5 has been prepared to reflect the transfer of net assets from KMI to KMP as if such transfer had taken place on May 25, 2012. Specifically, KMP (i) recognized the acquired assets and assumed liabilities at KMI’s carrying value as of its acquisition date, May 25, 2012 (including all of KMI’s purchase accounting adjustments); (ii) recognized any difference between its purchase price and the carrying value of the net assets it acquired as an adjustment to its Partners’ Capital (specifically, as an adjustment to its general partner’s capital interests); and (iii) retrospectively adjusted its consolidated financial statements, for any date after KMI’s May 25, 2012 acquisition of EP, to reflect its results on a consolidated combined basis including the results of the drop-down asset group as of or at the beginning of the respective period. Additionally, because KMI both controls KMP and consolidates KMP’s financial statements into its consolidated financial statements as a result of its ownership of KMP’s general partner, KMP fully allocated the earnings of the drop-down asset group for the period beginning May 25, 2012 and ending August 1, 2012 to its general partner and this amount is reported separately as “General Partner’s interest in pre-acquisition income from operations of drop-down asset group” in Note 5 for the year ended December 31, 2012. For the period beginning after KMP’s acquisition date of August 1, 2012, KMP allocated its earnings (including the earnings from the asset drop-down group) to all of its partners according to its Amended and Restated Agreements of Limited Partnership. Subsequent Event - KMP’s pending acquisition of Copano Energy, L.L.C. On January 29, 2013, KMP announced it has entered into an agreement to acquire Copano Energy , L.L.C. (Copano). KMP will acquire all of Copano’s outstanding units, including convertible preferred units, for a total purchase price of approximately $5 billion, including the assumption of debt. The transaction will be a 100% unit for unit transaction with an exchange ratio of 0.4563 KMP units per Copano unit. Copano, a midstream natural gas company with operations primarily in Texas, Oklahoma and Wyoming, provides comprehensive services to natural gas producers, including natural gas gathering, processing, treating and natural gas liquids fractionation. The transaction, which is expected to close in the third quarter of 2013, is subject to customary closing conditions, including regulatory approval and a vote of the Copano unitholders.

General

Kinder Morgan Management, LLC is a publicly traded Delaware limited liability company that was formed on February 14, 2001. Kinder Morgan G.P., Inc., of which Kinder Morgan, Inc. indirectly owns all of the outstanding common equity, is the general partner of Kinder Morgan Energy Partners, L.P. (KMP) and owns all of our voting shares. Kinder Morgan G.P., Inc., pursuant to a delegation of control agreement among us, Kinder Morgan G.P., Inc. and KMP, has delegated to us, to the fullest extent permitted under Delaware law and KMP’s limited partnership agreement, all of its rights and powers to manage and control the business and affairs of KMP, subject to the general partner’s right to approve specified actions. We are a limited partner in KMP through our ownership of its i-units, and manage and control its business and affairs pursuant to the delegation of control agreement. Our success is dependent upon our operation and management of KMP and its resulting performance, see Note 5 for summarized income statement and balance sheet information for KMP. Unless the context requires otherwise, references to “we,” “us,” “our,” or the “Company” are intended to mean Kinder Morgan Management, LLC and its consolidated subsidiary, Kinder Morgan Services LLC.

KMI’s Initial Public Offering

On February 16, 2011, Kinder Morgan, Inc. (KMI) completed an initial public offering of its common stock. Prior to the closing of the initial public offering, its outstanding units were converted into shares of its capital stock. All of the common stock that was sold in the offering was sold by its existing investors consisting of funds advised by or affiliated with Goldman Sachs & Co., Highstar Capital LP, The Carlyle Group and Riverstone Holdings LLC. No members of management sold shares in the offering, and KMI did not receive any proceeds from the offering. During 2012, the funds advised by or affiliated with Goldman Sachs & Co., The Carlyle Group and Riverstone Holdings LLC, sold their remaining interests in KMI.

KMI’s Acquisition of El Paso Corporation

Effective on May 25, 2012, KMI completed the acquisition of all of the outstanding shares of El Paso Corporation, referred to as “EP.” EP owns one of North America’s largest interstate natural gas pipeline systems and an emerging midstream business. EP also owns a 41% limited partner interest and the 2% general partner interest in El Paso Pipeline Partners, L.P., referred to as “EPB.” The combined enterprise, including the associated master limited partnerships, KMP and EPB, owns an interest in or operates more than 75,000 miles of pipeline and 180 terminals and represents the largest natural gas pipeline network in the United States, the largest independent transporter of petroleum products in the United States, the largest transporter of CO₂ in the United States, the second largest oil producer in Texas and the largest independent terminal owner/operator in the United States.

Effective November 1, 2012, KMI sold KMP’s FTC Natural Gas Pipelines disposal group to Tallgrass Energy Partners, L.P. for approximately $1.8 billion (before selling costs) to satisfy terms of a March 15, 2012 agreement with the U.S. Federal Trade Commission (FTC) to divest certain of its assets in order to receive regulatory approval for its EP acquisition. KMP’s FTC Natural Gas Pipelines disposal group’s assets included (i) Kinder Morgan Interstate Gas Transmission natural gas pipeline system; (ii) Trailblazer natural gas pipeline system; (iii) Casper and Douglas natural gas processing operations; and (iv) 50% equity investment in the Rockies Express natural gas pipeline system.

Effective August 1, 2012, KMP acquired the full ownership interest in the Tennessee Gas natural gas pipeline system and a 50% ownership interest in the El Paso Natural Gas pipeline system from KMI for an aggregate consideration of approximately $6.2 billion. In this report, we refer to KMP’s acquisition of assets from KMI as the drop-down transaction and we refer to the combined group of assets acquired from KMI as the drop-down asset group. KMI sold the drop-down asset group to KMP in order to replace KMP’s FTC Natural Gas Pipelines disposal group that it divested on November 1, 2012. Also, see Note 5.

KMI acquired the drop-down asset group from EP on May 25, 2012 (discussed above). Pursuant to current accounting principles in conformity with the Codification, KMI accounted for its acquisition from EP of the drop-down asset group under the purchase accounting method, and KMP accounted for the drop-down transaction as a transfer of net assets between entities under common control. Accordingly, the KMP information in Note 5 has been prepared to reflect the transfer of net assets from KMI to KMP as if such transfer had taken place on May 25, 2012. Specifically, KMP (i) recognized the acquired assets and assumed liabilities at KMI’s carrying value as of its acquisition date, May 25, 2012 (including all of KMI’s purchase accounting adjustments); (ii) recognized any difference between its purchase price and the carrying value of the net assets it acquired as an adjustment to its Partners’ Capital (specifically, as an adjustment to its general partner’s capital interests); and (iii) retrospectively adjusted its consolidated financial statements, for any date after KMI’s May 25, 2012 acquisition of EP, to reflect its results on a consolidated combined basis including the results of the drop-down asset group as of or at the beginning of the respective period.

Additionally, because KMI both controls KMP and consolidates KMP’s financial statements into its consolidated financial statements as a result of its ownership of KMP’s general partner, KMP fully allocated the earnings of the drop-down asset group for the period beginning May 25, 2012 and ending August 1, 2012 to its general partner and this amount is reported separately as “General Partner’s interest in pre-acquisition income from operations of drop-down asset group” in Note 5 for the year ended December 31, 2012. For the period beginning after KMP’s acquisition date of August 1, 2012, KMP allocated its earnings (including the earnings from the asset drop-down group) to all of its partners according to its Amended and Restated Agreements of Limited Partnership.

Subsequent Event - KMP’s pending acquisition of Copano Energy, L.L.C.

On January 29, 2013, KMP announced it has entered into an agreement to acquire Copano Energy , L.L.C. (Copano). KMP will acquire all of Copano’s outstanding units, including convertible preferred units, for a total purchase price of approximately $5 billion, including the assumption of debt. The transaction will be a 100% unit for unit transaction with an exchange ratio of 0.4563 KMP units per Copano unit. Copano, a midstream natural gas company with operations primarily in Texas, Oklahoma and Wyoming, provides comprehensive services to natural gas producers, including natural gas gathering, processing, treating and natural gas liquids fractionation. The transaction, which is expected to close in the third quarter of 2013, is subject to customary closing conditions, including regulatory approval and a vote of the Copano unitholders.