Bentonville, Ark. - Wal-Mart Stores reported higher net sales, but lower net income in its fiscal fourth quarter and fiscal year, ended Jan. 31.

Net sales for the fourth quarter of fiscal 2012 were $122.3 billion, an increase of 5.8 percent from $115.6 billion in last year's fourth quarter. Net sales for the quarter included $2.4 billion of positive impact from the acquisitions of the Netto stores in the U.K. and Massmart in South Africa. Net sales included approximately $1 billion of negative impact from currency exchange rates. Before acquisitions, and on a constant currency basis, net sales grew 4.5 percent to $120.9 billion.

Consolidated net income attributable to Walmart during the quarter was $5.16 billion, down 14.7 percent from the prior year.

Net sales for Walmart U.S. were $72.78 billion, up 2.4 percent from the prior year's fourth quarter. Sam's Club sales in the quarter were $14 billion, up 6.8 percent from the prior year.

Comp-store sales in the quarter, excluding fuel sales, for Walmart U.S. was up 1.5 percent and Sam's Club were up 5.4 percent compared with the prior year.

Operating income for Walmart U.S. was $6.1 billion in the quarter, up 1.4 percent, and Sam's Club operating income, excluding fuel, was up 8.3 percent in the quarter.

In the 2012 fiscal year consolidated net sales were $443.9 billion, an increase of 5.9 percent over fiscal year 2011. Net sales included approximately $4.7 billion of positive impact from acquisitions and approximately $4 billion of positive impact from currency exchange rates. Before acquisitions, and on a constant currency basis, net sales grew 3.9 percent to $435.1 billion.

Consolidated net income attributable to Walmart for the fiscal year was $15.7 billion, down 4.2 percent from the prior year.

Net sales for the year for Walmart U.S. was $264.2 billion, up 1.5 percent and Sam's Club net sales, excluding fuel, was $53.8 billion up 8.8 percent from the prior year.

Comp-store sales without fuel were up 0.2 percent for Walmart U.S. and up 5.1 percent at Sam's Club compared with the prior fiscal year.

Walmart U.S. operating income was $20.4 billion, up 2.2 percent, with Sam's Club operating income up 9 percent to $1.86 billion.