Take a look at slide 17 of the most recent investor presentation.

http://www.pulseseismic.com/userfiles/documents/ir/presentations/Pulse%20Powerpoint%20Enercom%20Full%20presentation.pdf

According to the slide, PSD typically trades at 4.4 - 4.7 multiple to SFCF/share.

Trailing 12 months SFCF/share at the end of 2012: $0.80

$0.80 * 4.4 multiple = $3.52

$0.80 * 4.7 miltiple = $3.76