Date Geol Regno Reg Provno Prov TPSno TPS AUno AU Data Comm RminMMBBCF Numtest1 Numtest2 AUM Med1MMBBCF Med2MMBBCF Med3MMBBCF Prob1 % Prob2 % Prob3 % Geoprob % Prob4 % TAAmin a TAAmed a TAAmax a CAmin a CAmed a CAmax a TAAUmin % TAAUmed % TAAUmax % UAAPmin % UAAPmed % UAAPmax % RminMMBBCF RmedMMBBCF RmaxMMBBCF GminCF/B GmedCF/B GmaxCF/B NminB/MMCF NmedB/MMCF NmaxB/MMCF LminB/MMCF LmedB/MMCF LmaxB/MMCF APImin deg APImed deg APImax deg Smin % Smed % Smax % ODmin m ODmed m ODmax m OWDmin m OWDmed m OWDmax m IGmin % IGmed % IGmax % CO2min % CO2med % CO2max % H2Smin % H2Smed % H2Smax % GDmin m GDmed m GDmax m GWDmin m GWDmed m GWDmax m TAAUPmin % TAAUPmed % TAAUPmax % 9/7/00 M.E. Henry 5 North America 5020 Uinta-Piceance Basin 502001 Ferron Coal/Wasatch Plateau 50200161 "Deep (6,000 feet plus) Coal and Sandstone Gas" Gas 0.2 8 0 Hypothetical 1 0.9 1 0.9 1 152300 160300 168300 60 160 320 100 100 100 0.2 0.5 4 0 0 0 2 5 9 1 5 11 0 0 0 1830 2070 2740 1 10 30 9/12/00 M.E. Henry 5 North America 5020 Uinta-Piceance Basin 502001 Ferron Coal/Wasatch Plateau 50200181 Northern Coal Fairway/Drunkards Wash Gas 0.05 328 310 Established 2.3 1.05 1.25 1 1 1 1 1 151600 159600 167600 40 120 280 63 73 83 0.05 0.8 12 0 0 0 0.1 2.2 3 1 3 7 0 0 0 150 700 1700 10 55 79 9/12/00 M.E. Henry 5 North America 5020 Uinta-Piceance Basin 502001 Ferron Coal/Wasatch Plateau 50200182 Central Coal Fairway/Buzzards Bench Gas 0.05 85 25 Established 0.34 0.15 2.3 1 1 1 1 1 238600 246000 253400 40 102 250 95 96 98 0.05 0.4 10 0 0 0 2 5 9 1 5 11 0 0 0 73 945 1830 5 38 55 9/7/00 M.E. Henry 5 North America 5020 Uinta-Piceance Basin 502001 Ferron Coal/Wasatch Plateau 50200183 Southern Coal Fairway Gas 0.05 16 0 Hypothetical 1 0.98 1 0.98 1 158300 166636 175000 40 108 250 98 99 100 0.05 0.2 5 0 0 0 2 5 9 1 5 11 0 0 0 305 1070 1830 1 35 50 9/7/00 M.E. Henry 5 North America 5020 Uinta-Piceance Basin 502001 Ferron Coal/Wasatch Plateau 50200184 Joes Valley and Messina Grabens "Gas, not quantitatively assessed." 0.05 1 0 Hypothetical 1 0.25 0.25 0.0625 1 1/9/01 M.E. Henry 5 North America 5020 Uinta-Piceance Basin 502001 Ferron Coal/Wasatch Plateau 50200185 Southern Coal Outcrop Gas 0.05 0 0 Hypothetical 0.9 0.8 0.8 0.576 1 31900 35400 38900 40 102 250 100 100 100 8 32 80 0.05 0.1 3 0 0 0 2 5 9 1 5 11 75 180 425 10/12/00 S.B. Roberts and R.C. Johnson 5 North America 5020 Uinta-Piceance Basin 502002 Mesaverde 50200261 Uinta Basin Continuous Gas PI production data current through third quarter 1999 Gas 0.02 1074 869 Established 0.8 0.7 0.66 1 1 1 1 1 1845000 2050000 2255000 20 92 240 95 96 97 4 30 50 0.02 0.5 40 0.75 1.5 2.25 1 2 10 0.1 0.5 1 0 0 0 1350 2800 6700 10/12/00 S.B. Roberts and R.C. Johnson 5 North America 5020 Uinta-Piceance Basin 502002 Mesaverde 50200262 Uinta Basin Transitional Gas PI production data current through third quarter 1999 Gas 0.02 305 145 Established 0.45 0.2 0.3 1 1 1 1 1 1069000 1274000 1479000 20 92 240 97 98 99 12 20 38 0.02 0.25 15 0.75 1.5 2.25 1 2 10 0.1 0.5 1 0 0 0 1500 2500 3500 10/13/00 R.C. Johnson and S.B. Roberts 5 North America 5020 Uinta-Piceance Basin 502002 Mesaverde 50200263 Piceance Basin Continuous Gas PI production data current through third quarter 1999 Gas 0.02 822 646 Established 0.44 0.39 0.63 1 1 1 1 1 1273000 1273000 1273000 20 67 180 96 97 98 8 20 35 0.02 0.5 15 1.5 3 4.5 0.1 0.3 0.5 0.1 3 5 0 0 0 1200 2700 4300 10/13/00 R.C. Johnson and S.B. Roberts 5 North America 5020 Uinta-Piceance Basin 502002 Mesaverde 50200264 Piceance Basin Transitional Gas PI production data current through third quarter 1999 Gas 0.02 188 56 Established 0.25 0.14 0.25 1 1 1 1 1 498000 622000 746000 20 80 180 95 97 99 1 12 20 0.02 0.25 4 1 2 3 0.1 0.3 0.5 0.1 3 5 0 0 0 750 1800 2700 10/13/00 S.B. Roberts and R.C. Johnson 5 North America 5020 Uinta-Piceance Basin 502002 Mesaverde 50200281 Uinta Basin Blackhawk Coalbed Gas PI production data current through third quarter 1999 Gas 0.05 26 16 Frontier 0.13 0.08 0.17 1 1 1 1 1 1650000 1737000 1823000 40 120 280 99.7 99.8 99.9 0.5 7 20 0.05 0.25 10 0 0 0 0.1 2.2 3 1 3 12 0 0 0 100 1000 1830 10/16/00 S.B. Roberts and R.C. Johnson 5 North America 5020 Uinta-Piceance Basin 502002 Mesaverde 50200282 Mesaverde Group Coalbed Gas PI production data current through third quarter 1999 Gas 0.02 90 18 Frontier 0.25 0.09 0.04 1 1 1 1 1 4280000 4815000 5350000 40 120 280 99.7 99.8 99.9 1 5 14 0.02 0.08 5 0 0 0 0.1 0.3 1 0.2 4 15 0 0 0 100 1000 1830 10/10/00 M.A. Kirschbaum and L.N.R. Roberts 5 North America 5020 Uinta-Piceance Basin 502003 Mancos/Mowry 50200361 Piceance Basin Continuous Gas PI data current through third quarter 1999 Gas 0.02 731 354 Established 0.3 0.13 0.22 1 1 1 1 1 1955000 2058000 2264000 30 110 240 94 96 98 4 18 49 0.02 0.25 10 0.5 1 1.5 0.1 0.4 25 0.01 2 6 0 0 0 700 2300 5000 10/11/00 M.A. Kirschbaum and L.N.R. Roberts 5 North America 5020 Uinta-Piceance Basin 502003 Mancos/Mowry 50200362 Uinta Basin Continuous Gas PI production data current through third quarter 1999 Gas 0.02 399 179 Established 0.33 0.42 0.81 1 1 1 1 1 4006000 4217000 4428000 30 110 240 98 99 100 5 9 18 0.02 0.5 16 1 2 3 0.1 1.3 7.4 0.15 0.6 1.2 0 0 0 300 2700 6100 10/11/00 M.A. Kirschbaum and L.N.R. Roberts 5 North America 5020 Uinta-Piceance Basin 502003 Mancos/Mowry 50200363 Uinta-Piceance Transitional and Migrated Gas PI production data current through third quarter 1999 Gas 0.02 2270 1489 Established 0.4 0.25 0.27 1 1 1 1 1 2235000 2540000 2845000 30 130 240 82 88 94 20 28 34 0.02 0.2 7 0.1 1.2 3.8 0.1 6 22 0.1 1 20 0 0 0 400 1200 4500 10/16/00 R.F. Dubiel 5 North America 5020 Uinta-Piceance Basin 502005 Green River 50200561 Deep Uinta Overpressured Continuous Oil PI production data current through third quarter 1999 Oil 0.003 942 849 Established 0.35 0.18 0.1 1 1 1 1 1 641000 713000 784000 80 305 640 34 58 77 35 50 80 0.003 0.045 0.45 825 1650 2475 35 70 105 31 37 42 0 0.1 0.2 2500 4000 6280