April 19 (Reuters) - Top oilfield services firm SLB on Friday reported a higher quarterly profit, as strong international oil and gas drilling demand helped offset a slowdown in North America activity.

The Houston, Texas-based company reported earnings of $1.07 billion, or 74 cents per share, for the quarter ended March 31, compared with $934 million, or 65 cents per share, last year.

(Reporting by Sourasis Bose in Bengaluru; Editing by Devika Syamnath)