Operating results on a year-to-date basis were impacted by the revenue and expense factors discussed above. The 2011 operating expenses included a $28.6 million material and supplies impairment, a $5.0 million charge related to a fire at a compressor station near Carthage, Texas and $9.2 million of gains from the sale of storage gas.
Growth capital expenditures were $84.2 million and maintenance capital expenditures were $51.3 million for the nine months ended September 30, 2012.
Conference CallThe Partnership has scheduled a conference call for October 29, 2012, at 9:00 a.m. Eastern time to review the third quarter and nine months' results. The earnings call may be accessed via the Boardwalk website at www.bwpmlp.com. Please go to the website at least 10 minutes before the event begins to register and download and install any necessary audio software. Those interested in participating in the question and answer session of the conference call should dial (800) 299-7089 for callers in the U.S. or (617) 801-9714 for callers outside the U.S. The PIN number to access the call is 29246984. Replay An online replay will be available on the Boardwalk website immediately following the call. Non-GAAP Financial Measures - EBITDA and Distributable Cash Flow The Partnership uses non-GAAP measures to evaluate its business and performance, including EBITDA and Distributable Cash Flow. EBITDA is used as a supplemental financial measure by management and by external users of the Partnership's financial statements, such as investors, commercial banks, research analysts and rating agencies, to assess the Partnership's operating and financial performance, ability to generate cash and return on invested capital as compared to those of other companies in the natural gas transportation, gathering and storage business. Distributable Cash Flow is used as a supplemental financial measure by management and by external users of the Partnership's financial statements to assess the Partnership's ability to make cash distributions to its unitholders and general partner.