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CHANGES IN STANDARDIZED MEASUREOF FUTURE NET CASHFLOWS (Tables)
12 Months Ended
Dec. 31, 2012
CHANGES IN STANDARDIZED MEASUREOF FUTURE NET CASHFLOWS (Tables)  
CHANGES IN STANDARDIZED MEASUREOF FUTURE NET CASHFLOWS (Tables)

The following table reflects the principal changes in the standardized measure of discounted future net cash flows attributable to our proved reserves.

 

 

 

2012

 

 

2011

 

 

 

 

 

 

 

 

Beginning balance

 

$

11,141

 

 

$

12,418

 

Oil and gas sales, net of production costs

 

 

(719

)

 

 

(75

)

Purchase of reserves, net of future development costs

 

 

-

 

 

 

-

 

Net changes in prices and production costs

 

 

 

 

 

 

 

 

Extensions and discoveries, net of future development costs-

 

 

302 

 

 

 

(1,202)

 

Revisions of quantity estimates

 

 

-

 

 

 

-

 

Other changes

 

 

-

 

 

 

-

 

 

 

 

 

 

 

 

 

 

Ending balance

 

$

10,724

 

 

$

11,141