* Q3 EPS C$0.22 vs C$0.28 last year
* Revenue up slightly at C$11.7 mln
* Perpetual software sales down 15 pct
Feb 12 (Reuters) - Canada's Computer Modelling Group Ltd CMG.TO said its third-quarter earnings fell 18 percent, hurt by lower sales at its perpetual software segment.
For the quarter ended Dec. 31, the company earned C$4.0 million ($3.81 million), or 22 Canadian cents a share, compared with C$4.9 million, or 28 Canadian cents a share, a year ago.
Computer Modelling Group, a maker of reservoir simulation software, said revenue grew marginally to C$11.7 million.
Analysts on average were expecting earnings of 19 Canadian cents a share, on revenue of C$11 million, according to Thomson Reuters I/B/E/S.
Revenue at perpetual software segment fell nearly 15 percent to C$2.9 million.
Shares of the Calgary, Alberta-based company closed at C$16.14 Thursday on the Toronto Stock Exchange. ($1=1.049 Canadian Dollar) (Reporting by Abhiram Nandakumar in Bangalore; Editing by Ratul Ray Chaudhuri)