May 8 (Reuters) - Canadian oil and gas producer Cenovus

Energy ( CVE ) on Thursday posted a fall in first-quarter

profit, amid market volatility.

The Calgary, Alberta-based company's net income fell to

C$859 million ($618.79 million), or 47 Canadian cents per share,

in the three months ended March 31 from C$1.18 billion, or 62

cents per share, a year earlier.

($1 = 1.3882 Canadian dollars)