Enservco Corporation announced unaudited preliminary revenue results for the fourth quarter and full year of 2012. Revenue of $11.4 million, the company's strongest-ever quarterly top-line results and a 78% increase versus the $6.4 million reported in the fourth quarter of 2011. The top-line growth during the fourth quarter was fueled by strong demand at the company's Heat Waves well-enhancement division, which expects to report record quarterly revenue of $9.9 million, up 115% versus $4.6 million in the comparable year-ago quarter. The results exceeded by 30% Heat Waves' prior quarterly revenue record of $7.6 million.

The company also reported preliminary, unaudited full-year revenue of a record $32.1 million, up 30% from $24.7 million in fiscal 2011.