Key Operating Data 2006-8 (Please Register for 2008 data)

All Financial Data in US Dollars.
Approach Resources Inc
  2006 2007
 Oil & Gas Operational
  Key Operating Data
     Production
       World Crude/NGL Output (Inc. Assoc. & Syncrude) (000 b/d) 0 0
       World Gas Production (Inc. Associates) (mmcf/d) 17 13
       World Crude/NGL/Gas Output (Inc. Assoc. & Syn.) (000 boe/d) 3 2
 
     Reserves
       Total Oil/NGL Reserves (mln bbls) 1 3
       Total Gas Reserves (bcf) 99 161
       Total Oil/NGL/Gas Reserves (mln boe) 18 30
 
     Drilling & Acreage
       Successful Exploration Wells (No.) 1 -
       Unsuccessful Exploration Wells (No.) - 1
 
     Refining & Marketing
 
     Key Operating Ratios
       Oil Reserve Replacement Ratio (Total Additions) (%) 147% 2,583%
       Oil Reserves/Production (years) 15 38
       Gas Reserve Replacement Ratio (Total Additions) (%) 40% 1,402%
       Gas Reserves/Production (years) 16 34
       Exploration Drillling Success Rate - World (%) 100% -