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  Onshore | Targets
  ON Energy believes the Berbice Block has excellent potential:
  Verified hydrocarbon source offshore
  Basement highs onshore form barriers to further migration
  Oil seeps onshore
  Oil/gas shows from prior drilling
    Rose Hall#1 heavy oil show in the upper Cretaceous in 1942
    Oil and gas shows in Skeldon water well
  In fall 2003, geochemical analyses identified 22 prospective leads.
  Exploration by Staatsalie has confirmed onshore potential
  Tambaredjo has reserves of 170 million bbls, equivalent to 1.2 million bbls per sq km
  Calcutta, with a preliminary reserve estimate of 15 million bbls, was discovered in March 2003 using geochemical techniques
  3 large geochemical anomalies have been mapped in Nickerie just across the Corentyne River from ON's Berbice Block
  The Nickerie exploration wells are forecast to be drilled in 2005
         
 
         
 

The above map shows the documented Canje world-class source kitchen, along with the possible paths of hydrocarbon migration.
Source: Staatsolie website

In 2003, to identify prospective targets ON Energy selectively verified with 2-D seismic, however it used less expensive technologies to identify anomalous areas. These technologies included taking geomicrobial samples on a 250 m grid over the coastal portion of the Berbice Block, re-interpreting portions of a 100,000 km aeromagnetic survey, and incorporating gravity data into the analysis.

         
 
         
 
         
  In July 2003, Warren Workman, Vice President of Exploration for CGX, visited the Rose Hall #1 location in this sugar cane field. Drilling in 1942 encountered heavy oil at 6,100 feet.
     
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