Our intermodal net revenues decreased 4.4 percent in the third quarter of 2012. This was due to decreased net revenue margin, offset partially by volume growth. Our net revenue margin decline was due to a change in our mix of business and increased cost of capacity.
Our ocean transportation net revenues increased 3.5 percent in the third quarter of 2012, due to increased pricing, partially offset by volume declines.
Our air transportation net revenues decreased 9.0 percent in the third quarter of 2012 due to pricing declines, partially offset by volume increases.
Other logistics services net revenues, which include transportation management services, customs, warehousing, and small parcel, increased 16.6 percent in the third quarter of 2012. This was primarily due to transaction increases in our transportation management and customs net revenues.
Sourcing net revenues increased 2.0 percent in the third quarter of 2012. This was due to volume growth, partially offset by decreased net revenue margin. Excluding Timco Worldwide, which was acquired on September 26, 2011, we estimate that Sourcing net revenues decreased approximately two percent in the third quarter of 2012.
Our payment services net revenues increased 4.2 percent in the third quarter of 2012 primarily due to an increase in transactions. On October 16, 2012, we completed the sale of our payment services business, T-Chek Systems, Inc., to Electronic Funds Source, LLC. The related assets and liabilities that were sold are classified as “held for sale” on the balance sheet as of September 30, 2012.
For the third quarter, operating expenses increased 2.6 percent to $245.4 million in 2012 from $239.1 million in 2011. This was due to an increase of 0.7 percent in personnel expense and an increase of 8.3 percent in other selling, general, and administrative expenses. For the third quarter, operating expenses as a percentage of net revenues increased to 56.7 percent in 2012 from 56.5 percent in 2011.