(Corrects spelling of "quarterly" in first paragraph)
Feb 5 (Reuters) - Land rig provider Patterson-UTI Energy Inc's quarterly profit more than tripled due to an increase in margins and revenue in its rigs business.
Net income rose to $57.6 million, or 39 cents per share, in the fourth quarter ended Dec. 31, from $16.6 million, or 11 cents per share, a year earlier.
Revenue rose nearly 37 percent to $901.2 million. (Reporting By Darshana Sankararaman and Anet Josline Pinto in Bengaluru; Editing by Savio D'Souza)