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Dec. 31, 2011
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1. Organization Hospitality Properties Trust, or HPT, we, our or us, is a real estate investment trust, or REIT, organized on February 7, 1995, under the laws of the State of Maryland, which invests in real estate used in hospitality industries. At December 31, 2011, HPT, directly and through subsidiaries, owned 288 hotels and 185 travel centers. At December 31, 2011, our properties were leased or managed by subsidiaries of the following companies: Host Hotels & Resorts, Inc., or Host; Marriott International, Inc., or Marriott; InterContinental Hotels Group PLC, or InterContinental; Hyatt Hotels Corporation, or Hyatt; Carlson Hotels Worldwide, or Carlson; and TravelCenters of America LLC, or TA. Hereinafter these companies are sometimes referred to as managers and/or tenants.

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- Definition The entire disclosure for the nature of an entity's business, the major products or services it sells or provides and its principal markets, including the locations of those markets. If the entity operates in more than one business, the disclosure also indicates the relative importance of its operations in each business and the basis for the determination (for example, assets, revenues, or earnings). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Name Statement of Position (SOP) -Publisher AICPA -Number 94-6 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6003-108592 + Details
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