Austrian oil and gas company OMV AG (OMV.VI) saw its hydrocarbon production fall on the year due to flooding in Austria , technical problems in Kazakhstan and security problems and strikes in Libya , the company said Wednesday in its second-quarter trading statement.

On the year, hydrocarbon production decreased 1.7% to 297 thousand barrels of oil equivalent per day. The company added that higher quantities in
Romania and New Zealand partially helped to offset the decreases elsewhere. It added that a higher U.S. dollar against the euro had a positive effect on the company's second-quarter results, but couldn't fully offset the effect of decreasing oil prices.

OMV's indicator refining margin decreased to $2.48 per barrel from $3.01 per barrel in the corresponding quarter a year ago. OMV attributed the decrease to weaker middle distillates and naphtha spreads as well as tightened Urals differential.

OMV booked a net special charge of 55 million euros ($72.6 million) in the second quarter due to the writedown of assets related to the Nabucco West pipeline project.