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Note 7 - Oil and Gas Exploration and Production Industries Disclosures: Summary of Changes Present Value of Estimated Future Net Revenue (Tables)
12 Months Ended
Sep. 30, 2012
Tables/Schedules  
Summary of Changes Present Value of Estimated Future Net Revenue

 

Year ended September 30

2012

2011

Present value of estimated future net revenue, beginning of year

 $      402,000

 $       368,000

Sales, net of production costs

        (86,000)

        (109,000)

Net change in prices and cost of future production

         57,000

          81,000

Revisions of quantity estimates

      (234,000)

         (9,000)

Accretion of discount

      40,000

          37,000

Change in production rates and other

       34,000

          34,000

Present value of estimated future net revenue, end of year

 $      213,000

 $       402,000