Samson completes phase 1 of Rubicon Unit 3-D seismic survey Sep 1, 2008Samson Oil & Gas Limited says that the acquisition of 27 square miles of the Phase 1 (Covering Samson’s entire acreage) of a new 3-D seismic survey in Samson's joint federal exploratory unit (the Rubicon Unit) with Devon Energy has been completed in Sweetwater County, Wyoming.