Energy Resources of Australia Ltd (ERA) has increased its full year uranium oxide production forecast by 8.3 per cent as it gets its processing operations going after a closure because of rain.

ERA now expects to produce 2,600 tonnes of uranium oxide in 2011, compared with the previously stated estimate of 2,400 tonnes.

ERA's (ERA) uranium oxide production in the second quarter slumped 90 per cent from a year earlier because of significant rains in the Northern Territory which caused a suspension of the Ranger mine on January 28.

ERA produced 83 tonnes of uranium during the three months to June.

On June 14, the company said it would progressively restart processing operations at Ranger.

For the six months to June, ERA produced 601 tonnes of uranium oxide, down 65 per cent from a year earlier, the Darwin-based company said in a statement on Wednesday.

Total year-to-date evaluation expenditure at the end of June was $6 million, compared with $17 million for the corresponding period in 2010.

Shares in the company gained five cents, or 1.23 per cent, to $4.11 by 1030 AEST.