r. johnston & associates
Geophysical Equipment Sales and Rentals

R. JOHNSTON & ASSOCIATES was established in 1992 to sell and market geoophysical equipment to
the Oil & Gas Exploration community, Mining and Minerals Community, Engineering and Environmental
Geophysics communities. Our success and reputation in these markets led us to several exclusive
arrangements with a variety of manufacturers.

In 1998 the Company was put in hibernation and the employees were employed full time by one of the
exclusive manufacturers represented by rjass.

This year we are reopening rjass and hope many of our customers will remember us when they begin to
purchase new equipment or need to rent equipment for a short term project. We pride ourselves on the
reputation we established as a customer oriented supplier of high quality equipment and continue in that
endevor today.

Check out our products page and if you don't see what you need drop us an email or give us a call. We
will find it for you.