<PAGE>
 

<TABLE>
<CAPTION>
                                              June 30, 1995     June 30, 1994
                                           -------------------  --------------
<S>                                        <C>                  <C>
Fleet utilization:
- -------------------
   Horsepower                                            81.5%           77.8%
 
Monthly rental rate, based on:
- -----------------------------------------
   Horsepower                                        $  15.54        $  17.43
 
Fleet size:
- -----------------------------------------
    Number of units                                       771             701
    Horsepower                                        129,467         107,494
</TABLE>

    Reflecting the effects of low natural gas prices, Energy Industries'
operating results continued to be negatively impacted during the third quarter
of fiscal 1995.  As a result, Energy Industries' operating income during the
third quarter of fiscal 1995 compared unfavorably to the third quarter income of
fiscal 1994.

                                       15