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          effective as of January 1, 1986, but also the other information             
          provided in conjunction with TPC's offer.                                   
               Sometime during October 1986, petitioner engaged LAM, Tri-             
          Power's independent reserve engineer since at least 1985,19 to              
          update the 1986 LAM reserve report.  Petitioner requested LAM to            
          roll forward its earlier projections to November 1, 1986, using             
          petitioner's oil and gas price forecast.  The Society of                    
          Petroleum Evaluation Engineers (SPEE) conducts an annual survey             
          of oil and gas price forecasts by producers, consultants, and               
          bankers.  The SPEE survey published during July 1986 (1986 SPEE             
          survey) provides an accurate compilation of the responses to that           
          survey.  The oil and gas price forecast provided by petitioner to           
          LAM for use in the rollforward was higher than the mean reported            
          by the 1986 SPEE survey (1986 SPEE mean), but within one standard           
          deviation of the 1986 SPEE mean.                                            
               Tri-Power provided its updated 1986 production data to both            
          petitioner and LAM.  Accordingly, LAM had available its                     
          production curves, updated through June 1986, and the production            
          data necessary to plot production curves through October 1986.              
          LAM's updated reserve report (the 1986 LAM updated reserve                  
          report), however, did not incorporate any of the updated                    
          19   The record indicates that LAM began work for Tri-Power's               
          predecessor during 1982.  Aside from a reserve report dated Jan.            
          22, 1985, however, the record contains no evidence that LAM was             
          involved with the Tri-Power properties prior to 1985.                       
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