NOTE 21—CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS:
CONSOL Energy markets natural gas primarily to gas wholesalers, thermal coal, principally to electric utilities in the United States, Canada and Western Europe and metallurgical coal to steel and coke producers worldwide.
Concentration of credit risk is summarized below:
Thermal coal utilities
Steel and coke producers
Coal brokers and distributors
Total Accounts Receivable Trade (including Accounts Receivable—Securitized)
Accounts receivable from thermal coal utilities and steel and coke producers include amounts sold under the accounts receivable securitization facility. See Note 10–Accounts Receivable Securitization for further discussion. Credit is extended based on an evaluation of the customer's financial condition, and generally collateral is not required. Credit losses have been consistently minimal.
For the year ended December 31, 2013, Xcoal Energy Resources and Duke Energy Carolinas each comprised over 10% of our revenues from continuing operations. Coal sales to Xcoal Energy Resources were $495,242 and coal sales to Duke Energy Carolinas were $346,424 during 2013. For the year ended December 31, 2012 and 2011, coal sales to Xcoal Energy Resources comprised over 10% of our revenues from continuing operations. Coal sales to Xcoal Energy Resources were $382,843 and $655,596 for the year ended December 31, 2012 and 2011, respectively.