Intermediary goods posted a 0.3% decline and durable goods posted a 0.1% decline, while capital goods grew 0.6% and consumer goods grew 0.1%. Energy prices declined 1.5% in December compared with November.
Compared with December 2014, industrial producer prices dropped 1.7%, the data showed.
Intermediary goods declined 3.1% on the year in December, while consumer goods posted a 2% increase, durable goods grew 1.4%, and capital goods were up 0.1%. Energy prices dropped by 5.4% compared with December, after an annual decline of 8.4% in November.