Cost of products sold for the three-month period ended August 31, 2013 increased $11.6 million from the prior year period primarily due to higher shipments, depreciation expense related to our new production line at our Hunter cement plant, repair and maintenance costs at our Texas plants, power and fuel costs, and emission allowance credits associated with our compliance with The California Global Warming Solutions Act of 2006, which took effect on January 1, 2013. Cement unit cost of sales decreased 2% from the prior year period as the impact of higher shipments were partially offset by the higher costs including depreciation, repair and maintenance, power and fuel, and emission allowance credits.
Selling, general and administrative expense for the three-month period ended August 31, 2013 increased $0.1 million from the prior year period.
Other income for the three-month period ended August 31, 2013 decreased $0.2 million from the prior year period.
|Three months ended|
|August 31,||August 31,|
|In thousands except per unit||2013||2012|
|Stone, sand and gravel sales||$ 35,670||$ 28,151|
|Delivery fees and other||13,488||12,830|
|Total segment sales||49,158||40,981|
|Cost of products sold||41,416||36,237|
|Selling, general and administrative||(1,490)||(1,008)|
|Other income, net||335||263|
|Operating profit||$ 6,587||$ 3,999|
|Stone, sand and gravel|
|Prices ($/ton)||$ 8.02||$ 7.19|
|Cost of sales ($/ton)||$ 6.33||$ 5.98|