MEXICO CITY, April 30 (Reuters) - Mexican state energy

company Pemex reported a 43.3 billion peso first-quarter net

loss on Wednesday, according to a filing with the Mexican stock

exchange, dragged by falling sales, rising expenses, foreign

exchange losses and financial costs.

Revenues for one of the country's biggest companies during

the January-to-March period fell 2.5% to 395.59 billion pesos,

mainly due to lower crude oil sales volumes.

During the first quarter, it pumped 1.62 million barrels

per day (bpd) of crude oil and condensate, down 11.3% versus a

year earlier. The company processed 936,000 bpd in its local

refineries, down by 5% compared to the year-ago period.