AU Number AU Province Number Province Area Ecosystem 1 Name Ecosystem 1 Area % Ecosystem 1 Oil Volume % Ecosystem 1 Gas Volume % Ecosystem 2 Name Ecosystem 2 Area % Ecosystem 2 Oil Volume % Ecosystem 2 Gas Volume % Ecosystem 3 Name Ecosystem 3 Area % Ecosystem 3 Oil Volume % Ecosystem 3 Gas Volume % Ecosystem 4 Name Ecosystem 4 Area % Ecosystem 4 Oil Volume % Ecosystem 4 Gas Volume % Ecosystem 5 Name Ecosystem 5 Area % Ecosystem 5 Oil Volume % Ecosystem 5 Gas Volume % Ecosystem 6 Name Ecosystem 6 Area % Ecosystem 6 Oil Volume % Ecosystem 6 Gas Volume % Ecosystem 7 Name Ecosystem 7 Area % Ecosystem 7 Oil Volume % Ecosystem 7 Gas Volume % Ecosystem 8 Name Ecosystem 8 Area % Ecosystem 8 Oil Volume % Ecosystem 8 Gas Volume % Ecosystem 9 Name Ecosystem 9 Area % Ecosystem 9 Oil Volume % Ecosystem 9 Gas Volume % Ecosystem 10 Name Ecosystem 10 Area % Ecosystem 10 Oil Volume % Ecosystem 10 Gas Volume % Ecosystem 11 Name Ecosystem 11 Area % Ecosystem 11 Oil Volume % Ecosystem 11 Gas Volume % Ecosystem 12 Name Ecosystem 12 Area % Ecosystem 12 Oil Volume % Ecosystem 12 Gas Volume % Ecosystem 13 Name Ecosystem 13 Area % Ecosystem 13 Oil Volume % Ecosystem 13 Gas Volume % Ecosystem 14 Name Ecosystem 14 Area % Ecosystem 14 Oil Volume % Ecosystem 14 Gas Volume % Ecosystem 15 Name Ecosystem 15 Area % Ecosystem 15 Oil Volume % Ecosystem 15 Gas Volume % 50010181 Nanushuk Formation Coalbed Gas 5001 Northern Alaska "106,197.96" Coastal Plain (CSTP) 39.41877202 48.51 Foothills (FTHL) 52.46681339 50.49 Mountains (MNTS) 0.955561654 0 50010182 Prince Creek–Tuluvak Formations Coalbed Gas 5001 Northern Alaska "38,929.29" Coastal Plain (CSTP) 32.42430397 10 Foothills (FTHL) 59.72937668 90 50010183 Sagavanirktok Formation Coalbed Gas 5001 Northern Alaska "22,843.53" Coastal Plain (CSTP) 36.37557435 65 Foothills (FTHL) 44.05467996 33.1 50020181 Coalbed Gas 5002 Central Alaska "28,277.06" 50030161 Tuxedni-Naknek Continuous Gas 5003 Southern Alaska 906.33 Cook Inlet Lowlands (CILL) 27.70505695 27.70505695 50030281 Cook Inlet Coalbed Gas 5003 Southern Alaska "34,299.82" Alaska Mountains (AKMT) 22.80176294 22.80176294 Chugach-St. Elias Mountains (CSMT) 1.264603585 1.264603585 Cook Inlet Lowlands (CILL) 61.94148446 61.94148446 50040381 Eocene Coalbed Gas 5004 Western Oregon-Washington "44,665.63" Klamath Mountains (KLMT) 5.784239295 5.784239295 Oregon and Washington Coast Ranges (OWCR) 35.66325641 35.66325641 Western Cascades (WCSC) 4.921849765 4.921849765 Willamette Valley and Puget Trough (WVPT) 47.20323509 47.20323509 50050161 Columbia Basin Continuous Gas 5005 Eastern Oregon-Washington "16,500.60" Columbia Basin (COBA) 100 100 Eastern Cascades (ECSC) 0 0 50200161 "Deep (6,000 feet plus) Coal and Sandstone Gas" 5020 Uinta-Piceance 632.48 Overthrust Mountains (OVMT) 4.67 4.67 Utah High Plateaus and Mountains (UHPM) 95.33 95.33 50200181 Northern Coal Fairway/Drunkards Wash 5020 Uinta-Piceance 650.56 Northern Canyon Lands (NCLD) 1.68 1.68 Overthrust Mountains (OVMT) 95.44 95.44 Utah High Plateaus and Mountains (UHPM) 2.88 2.88 50200182 Central Coal Fairway/Buzzards Bench 5020 Uinta-Piceance "1,021.20" Northern Canyon Lands (NCLD) 3.35 3.35 Overthrust Mountains (OVMT) 7.99 7.99 Utah High Plateaus and Mountains (UHPM) 88.66 88.66 50200183 Southern Coal Fairway 5020 Uinta-Piceance 678.03 Utah High Plateaus and Mountains (UHPM) 100 100 50200184 Joes Valley and Messina Grabens 5020 Uinta-Piceance 294.71 50200185 Southern Coal Outcrop 5020 Uinta-Piceance 144.00 Utah High Plateaus and Mountains (UHPM) 100 100 50200261 Uinta Basin Continuous Gas 5020 Uinta-Piceance "8,367.01" Overthrust Mountains (OVMT) 16.12 16.12 Tavaputs Plateau (TPPT) 3.23 3.23 Uinta Basin (UTBA) 57.64 57.64 Uinta Mountains (UTMT) 23.01 23.01 50200262 Uinta Basin Transitional Gas 5020 Uinta-Piceance "5,189.87" Overthrust Mountains (OVMT) 30.49 30.49 Tavaputs Plateau (TPPT) 37.15 37.15 Uinta Basin (UTBA) 32.36 32.36 50200263 Piceance Basin Continuous Gas 5020 Uinta-Piceance "5,152.97" North-Central Highlands (NCHL) 25.38 25.38 Tavaputs Plateau (TPPT) 74.62 74.62 50200264 Piceance Basin Transitional Gas 5020 Uinta-Piceance "2,534.99" North-Central Highlands (NCHL) 29.94 29.94 Tavaputs Plateau (TPPT) 65.55 65.55 Uinta Mountains (UTMT) 4.51 4.51 50200281 Uinta Basin Blackhawk Coalbed Gas 5020 Uinta-Piceance "7,073.15" Bonneville Basin (BNBA) 15.33 15.33 Northern Canyon Lands (NCLD) 6.81 6.81 Overthrust Mountains (OVMT) 36.49 36.49 Tavaputs Plateau (TPPT) 0.01 0.01 Uinta Mountains (UTMT) 3.33 3.33 Utah High Plateaus and Mountains (UHPM) 38.03 38.03 50200282 Mesaverde Group Coalbed Gas 5020 Uinta-Piceance "16,549.73" North-Central Highlands (NCHL) 24.67 24.67 Northern Canyon Lands (NCLD) 6.69 6.69 Tavaputs Plateau (TPPT) 56.28 56.28 Uinta Basin (UTBA) 10.24 10.24 Uinta Mountains (UTMT) 2.12 2.12 50200361 Piceance Basin Continuous Gas 5020 Uinta-Piceance "8,328.04" North-Central Highlands (NCHL) 29.97 29.97 Northern Canyon Lands (NCLD) 2.22 2.22 Tavaputs Plateau (TPPT) 67.81 67.81 50200362 Uinta Basin Continuous Gas 5020 Uinta-Piceance "17,066.17" Bonneville Basin (BNBA) 0.65 0.65 Northern Canyon Lands (NCLD) 0.01 0.01 Overthrust Mountains (OVMT) 19.96 19.96 Tavaputs Plateau (TPPT) 28.39 28.39 Uinta Basin (UTBA) 41.64 41.64 Uinta Mountains (UTMT) 9.1 9.1 Utah High Plateaus and Mountains (UHPM) 0.25 0.25 50200363 Uinta-Piceance Transitional and Migrated Gas 5020 Uinta-Piceance "10,278.39" Bonneville Basin (BNBA) 2.95 2.95 North-Central Highlands (NCHL) 10.27 10.27 Northern Canyon Lands (NCLD) 20.87 20.87 Overthrust Mountains (OVMT) 13.25 13.25 Tavaputs Plateau (TPPT) 42.42 42.42 Uinta Basin (UTBA) 3.18 3.18 Utah High Plateaus and Mountains (UHPM) 7.06 7.06 50200561 Deep Uinta Overpressured Continuous Oil 5020 Uinta-Piceance "2,884.55" Overthrust Mountains (OVMT) 9.46 9.46 Uinta Basin (UTBA) 46.96 46.96 Uinta Mountains (UTMT) 43.58 43.58 50210161 Precambrian Chuar Self-Sourced Reservoirs 5021 Paradox Basin "21,692.93" 50210261 Devonian Self-Sourced Reservoirs 5021 Paradox Basin "19,573.09" 50210361 Cane Creek Shale Oil 5021 Paradox Basin "5,133.12" Grand Canyon Lands (GDCL) 0.906727715 1 Northern Canyon Lands (NCLD) 85.3020543 88 South-Central Highlands (SCHL) 13.79121799 11 50210362 Cane Creek Shale Gas 5021 Paradox Basin "11,405.47" Northern Canyon Lands (NCLD) 81.88213326 81 South-Central Highlands (SCHL) 17.43008471 19 Tavaputs Plateau (TPPT) 0.687782037 0 50210363 "Gothic, Chimney Rock, Hovenweep Shale Oil" 5021 Paradox Basin "42,776.38" Grand Canyon Lands (GDCL) 21.66600261 23 Navajo Canyonlands (NVCL) 34.90036165 34 Northern Canyon Lands (NCLD) 33.35597301 33 White Mountain-San Francisco Peaks (WMSF) 10.07766273 10 50210364 "Gothic, Chimney Rock, Hovenweep Shale Gas" 5021 Paradox Basin "25,726.17" Grand Canyon Lands (GDCL) 14.8398102 15 Navajo Canyonlands (NVCL) 4.865292581 4 Northern Canyon Lands (NCLD) 53.61602175 54 South-Central Highlands (SCHL) 18.18425631 18 Tavaputs Plateau (TPPT) 8.494619159 9 50210461 Manning Canyon 5021 Paradox Basin "12,477.35" 50210581 Kaiparowits Plateau 5021 Paradox Basin "4,512.04" Grand Canyon Lands (GDCL) 63.63178661 63 Utah High Plateaus and Mountains (UHPM) 36.36821339 37 50210582 Henry Mountains 5021 Paradox Basin "1,536.48" 50220161 Pictured Cliffs Continuous Gas 5022 San Juan Basin "17,216.13" Grand Canyon Lands (GDCL) 2.748057844 5 Navajo Canyonlands (NVCL) 74.16569616 83 South-Central Highlands (SCHL) 8.865884455 2 White Mountain-San Francisco Peaks (WMSF) 14.22036154 10 50220181 Fruitland Fairway Coalbed Gas 5022 San Juan Basin 920.01 Grand Canyon Lands (GDCL) 12.34556696 7 Navajo Canyonlands (NVCL) 86.44717465 91 South-Central Highlands (SCHL) 1.207258392 2 50220182 Basin Fruitland Coalbed Gas 5022 San Juan Basin "16,296.12" Grand Canyon Lands (GDCL) 2.20652072 4 Navajo Canyonlands (NVCL) 73.47271977 70 South-Central Highlands (SCHL) 9.29801661 18 White Mountain-San Francisco Peaks (WMSF) 15.0227429 8 50220261 Lewis Continuous Gas 5022 San Juan Basin "19,443.05" Grand Canyon Lands (GDCL) 3.128330902 5 Navajo Canyonlands (NVCL) 72.31260942 80 South-Central Highlands (SCHL) 9.525803079 5 White Mountain-San Francisco Peaks (WMSF) 15.0332566 10 50220361 Mesaverde Central-Basin Continuous Gas 5022 San Juan Basin "9,501.72" Grand Canyon Lands (GDCL) 5.462283659 5 Navajo Canyonlands (NVCL) 60.77047382 87 South-Central Highlands (SCHL) 15.33518361 3 White Mountain-San Francisco Peaks (WMSF) 18.43205891 5 50220362 Mancos Sandstones Continuous Gas 5022 San Juan Basin "7,860.88" Grand Canyon Lands (GDCL) 6.085349221 4 Navajo Canyonlands (NVCL) 62.90529427 75 South-Central Highlands (SCHL) 18.59330253 6 White Mountain-San Francisco Peaks (WMSF) 12.41605398 15 50220363 Dakota-Greenhorn Continuous Gas 5022 San Juan Basin "10,171.07" Grand Canyon Lands (GDCL) 4.939804478 4 Navajo Canyonlands (NVCL) 68.38812149 87 South-Central Highlands (SCHL) 13.83117554 4 White Mountain-San Francisco Peaks (WMSF) 12.8408985 5 50220381 Menefee Coalbed Gas 5022 San Juan Basin "19,413.36" Grand Canyon Lands (GDCL) 6.5040798 9 Navajo Canyonlands (NVCL) 67.25458241 91 South-Central Highlands (SCHL) 1.64272121 0 White Mountain-San Francisco Peaks (WMSF) 24.59861658 0 50270361 Bakken Continuous Oil 5027 Montana Thrust Belt "5,955.86" 50270561 Marias River Shale Continuous Oil 5027 Montana Thrust Belt "4,195.85" Belt Mountains (BEMT) 0.221327483 0.221327483 Northwestern Glaciated Plains (NWGL) 15.16072789 15.16072789 Rocky Mountain Front (RMTF) 84.61794463 84.61794463 50270681 Jurassic-Cretaceous Coalbed Methane 5027 Montana Thrust Belt "3,878.63" 50280161 Judith River Formation 5028 North-Central Montana "162,393.47" Belt Mountains (BEMT) 0.770744666 0.770744666 Bighorn Mountains (BHMT) 0.083896595 0.083896595 Northern Glaciated Plains (NGPL) 7.747421156 7.747421156 Northwestern Glaciated Plains (NWGL) 39.37459655 39.37459655 Northwestern Great Plains (NWGP) 8.758118891 8.758118891 Powder River Basin (PRBA) 43.26522214 43.26522214 50280162 Eagle Sandstone and Claggett Shale East 5028 North-Central Montana "117,314.11" Northwestern Glaciated Plains (NWGL) 34.76081478 34.76081478 Northwestern Great Plains (NWGP) 8.123074896 8.123074896 Powder River Basin (PRBA) 56.91638382 56.91638382 Bighorn Mountains (BHMT) 0.199726505 0.199726505 50280163 Eagle Sandstone and Claggett Shale West 5028 North-Central Montana "34,722.90" Northwestern Glaciated Plains (NWGL) 96.23490265 96.23490265 Powder River Basin (PRBA) 0.064219156 0.064219156 Belt Mountains (BEMT) 3.700878194 3.700878194 50280164 Niobrara-Carlile 5028 North-Central Montana "242,439.45" Beaverhead Mountains (BVMT) 0.002101377 0.002101377 Belt Mountains (BEMT) 5.665960184 5.665960184 Bighorn Basin (BHBA) 0.229757515 0.229757515 Bighorn Mountains (BHMT) 0.128358288 0.128358288 Northern Glaciated Plains (NGPL) 5.194694894 5.194694894 Northwestern Glaciated Plains (NWGL) 42.69996833 42.69996833 Northwestern Great Plains (NWGP) 7.022342303 7.022342303 Powder River Basin (PRBA) 36.52378357 36.52378357 Rocky Mountain Front (RMTF) 1.604768803 1.604768803 Yellowstone Highlands (YSHL) 0.926484595 0.926484595 Northern Rockies (NORK) 0.001780145 0.001780145 50280165 Greenhorn-Lower Belle Fourche 5028 North-Central Montana "146,089.07" Northwestern Glaciated Plains (NWGL) 76.49221214 76.49221214 Northern Rockies (NORK) 0.020939591 0.020939591 Rocky Mountain Front (RMTF) 19.67742191 19.67742191 Bitterroot Valley (BTVL) 0.11905703 0.11905703 Belt Mountains (BEMT) 3.690369331 3.690369331 50280166 Greenhorn-Upper Belle Fourche 5028 North-Central Montana "127,606.33" Northwestern Glaciated Plains (NWGL) 63.43224569 63.43224569 Powder River Basin (PRBA) 33.13671258 33.13671258 Belt Mountains (BEMT) 3.431041721 3.431041721 50280167 Bowdoin Dome 5028 North-Central Montana "5,465.04" Northwestern Glaciated Plains (NWGL) 100 100 50300261 Hanna Basin Continuous Gas 5030 "Hanna, Laramie, Shirley Basins" 982.37 50300361 Niobrara Continuous Oil 5030 "Hanna, Laramie, Shirley Basins" "3,403.48" Central Basin and Hills (CNBH) 93.14 93 Greater Green River Basin (GGRV) 6.86 7 50300461 Niobrara Biogenic Gas 5030 "Hanna, Laramie, Shirley Basins" "5,593.73" 50300581 Medicine Bow-Ferris-Hanna Coalbed Gas 5030 "Hanna, Laramie, Shirley Basins" "1,976.02" 50300582 Mesaverde Coalbed Gas 5030 "Hanna, Laramie, Shirley Basins" "3,160.20" 50310161 Elm Coulee-Billings Nose 5031 Williston Basin "7,021.56" Northern Glaciated Plains (NGPL) 30.5322076 30 Northwestern Glaciated Plains (NWGL) 3.321004323 2 Northwestern Great Plains (NWGP) 66.14678808 68 50310162 Central Basin-Poplar Dome 5031 Williston Basin "12,733.77" Northern Glaciated Plains (NGPL) 78.70510364 76 Northwestern Glaciated Plains (NWGL) 2.936152867 2 Northwestern Great Plains (NWGP) 18.3587435 22 50310163 Nesson-Little Knife Structural 5031 Williston Basin "9,394.06" Northeastern Glaciated Plains (NEGP) 4.892854553 4 Northern Glaciated Plains (NGPL) 49.80097249 55 Northwestern Great Plains (NWGP) 45.30617295 41 50310164 Eastern Expulsion Threshold 5031 Williston Basin "7,853.80" Northeastern Glaciated Plains (NEGP) 16.53293531 20 Northern Glaciated Plains (NGPL) 53.70119762 60 Northwestern Great Plains (NWGP) 29.76586707 20 50310165 Northwest Expulsion Threshold 5031 Williston Basin "14,213.84" Northeastern Glaciated Plains (NEGP) 3.276007315 3 Northern Glaciated Plains (NGPL) 57.02186032 60 Northwestern Great Plains (NWGP) 39.70213237 37 50310261 Winnipeg-Icebox Continuous Gas 5031 Williston Basin 50310861 Tyler Shale Continuous Oil 5031 Williston Basin "45,447.01" 50311081 Fort Union Coalbed Gas 5031 Williston Basin "110,738.72" Northeastern Glaciated Plains (NEGP) 7.221515527 5 Northern Glaciated Plains (NGPL) 34.97112093 24 Northwestern Glaciated Plains (NWGL) 6.82348249 5 Northwestern Great Plains (NWGP) 41.94314968 56 Powder River Basin (PRBA) 9.04073138 10 50330181 Wasatch Formation 5033 Powder River Basin "19,476.90" Bighorn Mountains (BHMT) 5.854937584 5.854937584 Northwestern Great Plains (NWGP) 15.41028097 15.41028097 Powder River Basin (PRBA) 78.73478144 78.73478144 50330182 Upper Fort Union Formation 5033 Powder River Basin "43,142.94" Bighorn Mountains (BHMT) 3.678727693 3.678727693 Northwestern Great Plains (NWGP) 10.59870526 10.59870526 Powder River Basin (PRBA) 85.72256704 85.72256704 50330183 Lower Fort Union-Lance Formations 5033 Powder River Basin "65,218.76" Bighorn Mountains (BHMT) 0.834556335 0.834556335 Northwestern Great Plains (NWGP) 37.61338948 37.61338948 Powder River Basin (PRBA) 61.55205419 61.55205419 50330261 Mowry Continuous Oil 5033 Powder River Basin "25,624.96" Bighorn Mountains (BHMT) 6.661131063 6.661131063 Northern Parks and Ranges (NPRN) 0.04682787 0.04682787 Northwestern Great Plains (NWGP) 24.65336269 24.65336269 Powder River Basin (PRBA) 68.63867838 68.63867838 50330361 Niobrara Continuous Oil 5033 Powder River Basin "18,641.96" Bighorn Mountains (BHMT) 5.581744492 5.581744492 Northwestern Great Plains (NWGP) 28.77097629 28.77097629 Powder River Basin (PRBA) 65.64727922 65.64727922 50330461 Shallow Continuous Biogenic Gas 5033 Powder River Basin "79,793.99" Bighorn Basin (BHBA) 0.2169851 0.2169851 Bighorn Mountains (BHMT) 8.993936522 8.993936522 Black Hills (BLKH) 1.420267943 1.420267943 Central Basin and Hills (CNBH) 1.21405954 1.21405954 Northern Parks and Ranges (NPRN) 2.848433788 2.848433788 Northwestern Great Plains (NWGP) 31.12986607 31.12986607 Powder River Basin (PRBA) 54.17645103 54.17645103 50340261 Muddy-Frontier Sandstone and Mowry Fractured Shale Continuous Gas 5034 Big Horn Basin "3,922.86" Bighorn Basin (BHBA) 85.94520808 80 Yellowstone Highlands (YSHL) 14.05479192 20 50340262 Mowry Fractured Shale Continuous Oil 5034 Big Horn Basin "2,615.96" Bighorn Basin (BHBA) 100 100 50340263 Cody Sandstone Continuous Gas 5034 Big Horn Basin "1,699.84" Bighorn Basin (BHBA) 87.48739423 92 Yellowstone Highlands (YSHL) 12.51260577 8 50340264 Mesaverde Sandstone Continuous Gas 5034 Big Horn Basin 895.80 Bighorn Basin (BHBA) 78.23435003 83 Yellowstone Highlands (YSHL) 21.76564997 17 50340281 Mesaverde-Meeteetse Formation Coalbed Gas 5034 Big Horn Basin "6,681.83" Bighorn Basin (BHBA) 74.37896392 97 Powder River Basin (PRBA) 4.183289418 1 Yellowstone Highlands (YSHL) 21.43774667 2 50340282 Fort Union Formation Coalbed Gas 5034 Big Horn Basin "9,789.45" Bighorn Basin (BHBA) 81.18067297 30 Powder River Basin (PRBA) 2.907411549 0 Yellowstone Highlands (YSHL) 15.91191548 70 50350261 Frontier-Muddy Continuous Gas 5035 Wind River Basin "7,083.60" Central Basin and Hills (CNBH) 100 100 50350262 Cody Sandstones Continuous Gas 5035 Wind River Basin "4,589.52" Central Basin and Hills (CNBH) 100 100 50350263 Cody Fractured Shale Continuous Oil 5035 Wind River Basin "3,178.17" 50350264 Mesaverde-Meeteetse Sandstone Gas 5035 Wind River Basin "4,873.37" Central Basin and Hills (CNBH) 100 100 50350265 Lance-Fort Union Sandstone Gas 5035 Wind River Basin "3,590.57" Central Basin and Hills (CNBH) 100 100 50350281 Mesaverde Coalbed Gas 5035 Wind River Basin "2,624.51" Central Basin and Hills (CNBH) 94.5 94.5 5.5 5.5 50350282 Meeteetse Coalbed Gas 5035 Wind River Basin "1,485.25" Central Basin and Hills (CNBH) 100 100 50350283 Fort Union Coalbed Gas 5035 Wind River Basin "5,744.11" Central Basin and Hills (CNBH) 97.47 100 Wind River Mountain (WRMT) 2.53 0 50350361 Waltman Fractured Shale Continuous Oil 5035 Wind River Basin "3,009.88" 50360281 Frontier-Adaville-Evanston Coalbed Gas 5036 Wyoming Thrust Belt "1,968.38" Bear Lake (BRLK) 51.73 63 Northwestern Basin and Range (NWBR) 1.02 0 Overthrust Mountains (OVMT) 43.84 36 Uinta Mountains (UTMT) 3.41 1 50370261 Mowry Continuous Gas 5037 Southwestern Wyoming "46,370.40" Bear Lake (BRLK) 1.423157699 1 Central Basin and Hills (CNBH) 1.425824042 0.8 Greater Green River Basin (GGRV) 82.89754556 84 North-Central Highlands (NCHL) 0.36372578 0.2 Overthrust Mountains (OVMT) 8.144067711 8 Uinta Mountains (UTMT) 5.745679212 6 50370361 Niobrara Continuous Oil 5037 Southwestern Wyoming "11,794.30" Central Basin and Hills (CNBH) 10.026081 5 Greater Green River Basin (GGRV) 50.43326633 50 North-Central Highlands (NCHL) 35.84697775 45 Tavaputs Plateau (TPPT) 1.920707502 0 Uinta Mountains (UTMT) 1.772967413 0 50370362 Niobrara Continuous Gas 5037 Southwestern Wyoming "9,923.23" 50370461 Hilliard-Baxter-Mancos Continuous Gas 5037 Southwestern Wyoming "42,514.88" Central Basin and Hills (CNBH) 1.540152024 1.540152024 Greater Green River Basin (GGRV) 88.48687468 88.48687468 North-Central Highlands (NCHL) 0.214456827 0.214456827 Overthrust Mountains (OVMT) 5.17731806 5.17731806 Uinta Mountains (UTMT) 4.58119841 4.58119841 50370561 Almond Continuous Gas 5037 Southwestern Wyoming "13,570.13" Central Basin and Hills (CNBH) 1.150838637 1.150838637 Greater Green River Basin (GGRV) 97.26172615 97.26172615 Uinta Mountains (UTMT) 1.587435216 1.587435216 50370562 Rock Springs-Ericson Continuous Gas 5037 Southwestern Wyoming "17,648.69" Central Basin and Hills (CNBH) 2.086434904 2.086434904 Greater Green River Basin (GGRV) 96.39711813 96.39711813 Uinta Mountains (UTMT) 1.516446969 1.516446969 50370581 Mesaverde Coalbed Gas 5037 Southwestern Wyoming "12,081.35" Greater Green River Basin (GGRV) 84.49088813 79.17 North-Central Highlands (NCHL) 14.67607545 20 Tavaputs Plateau (TPPT) 0.33287179 0.33 Uinta Mountains (UTMT) 0.500164633 0.5 50370661 Mesaverde-Lance-Fort Union Continuous Gas 5037 Southwestern Wyoming "14,089.25" Greater Green River Basin (GGRV) 81.93219164 82 Overthrust Mountains (OVMT) 12.80147438 18 Uinta Mountains (UTMT) 5.26633398 0 50370681 Mesaverde Coalbed Gas 5037 Southwestern Wyoming "1,322.67" Greater Green River Basin (GGRV) 43.2382266 48 Overthrust Mountains (OVMT) 41.85461341 50 Uinta Mountains (UTMT) 14.90715999 2 50370682 Fort Union Coalbed Gas 5037 Southwestern Wyoming "4,794.28" Greater Green River Basin (GGRV) 64.73680853 100 Overthrust Mountains (OVMT) 31.79531747 0 Uinta Mountains (UTMT) 3.467874007 0 50370761 Lewis Continuous Gas 5037 Southwestern Wyoming "13,394.34" Central Basin and Hills (CNBH) 1.165950137 0.5 Greater Green River Basin (GGRV) 97.35496877 99.5 Uinta Mountains (UTMT) 1.479081092 0 50370861 Lance-Fort Union Continuous Gas 5037 Southwestern Wyoming "9,890.05" Central Basin and Hills (CNBH) 1.293414637 1.293414637 Greater Green River Basin (GGRV) 94.63438996 96.63438996 Uinta Mountains (UTMT) 4.072195405 2.072195405 50370881 Lance Coalbed Gas 5037 Southwestern Wyoming "9,514.78" Central Basin and Hills (CNBH) 7.206375268 8 Greater Green River Basin (GGRV) 89.51251162 90 North-Central Highlands (NCHL) 2.441897624 2 Uinta Mountains (UTMT) 0.83921549 0 50370882 Fort Union Coalbed Gas 5037 Southwestern Wyoming "12,332.21" Greater Green River Basin (GGRV) 99.11569976 99.72507803 North-Central Highlands (NCHL) 0.274921969 0.274921969 Uinta Mountains (UTMT) 0.609378269 0 50370961 Wasatch-Green River Continuous Gas 5037 Southwestern Wyoming "13,552.81" 50370981 Wasatch-Green River Coalbed Gas 5037 Southwestern Wyoming "2,689.54" Greater Green River Basin (GGRV) 100 100 50390261 Fractured Niobrara Limestone (Silo Field Area) 5039 Denver Basin "2,769.61" Central High Plains (CNHP) 100 100 50390361 Fractured Pierre Shale 5039 Denver Basin "1,414.01" 50390661 Niobrara-Codell (Wattenberg Area) 5039 Denver Basin "8,116.74" Northern Parks and Ranges (NPRN) 19.48 5 Central High Plains (CNHP) 80.52 95 50390662 Dakota Group Basin-Center Gas 5039 Denver Basin "5,645.73" Northern Parks and Ranges (NPRN) 8.91 5 Central High Plains (CNHP) 91.09 95 50390761 Niobrara Chalk 5039 Denver Basin "193,748.83" Arkansas Tablelands (ARTL) 3.11 0.5 Central High Plains (CNHP) 7.88 17 Central High Tablelands (CNHT) 20.04 70 Nebraska Sand Hills (NBSH) 22.13 8 North-Central Great Plains (NCGP) 20.34 2 Northeastern Glaciated Plains (NEGP) 0.06 0 Northern Glaciated Plains (NGPL) 7.5 0.5 Northwestern Great Plains (NWGP) 17.67 1 South-Central Great Plains (SCGP) 0.25 1 Western Glaciated Plains (WGPL) 1.02 0 50410181 Raton Coalbed Gas 5041 Raton Basin-Sierra Grande Uplift "5,310.48" Arkansas Tablelands (ARTL) 6.03 6 Southern Parks and Ranges (SPRA) 93.97 94 50410182 Vermejo Coalbed Gas 5041 Raton Basin-Sierra Grande Uplift "5,310.48" Arkansas Tablelands (ARTL) 6.03 5 Southern Parks and Ranges (SPRA) 93.97 95 50440161 Delaware/Pecos Basins Woodford Continuous Shale Gas 5044 Permian Basin "23,771.25" Basin and Range (BARA) 91.36671004 95 Sacramento-Monzano Mountain (SMMT) 4.472364374 1 Stockton Plateau (STPT) 4.159877429 4 Texas High Plains (TXHP) 0.001048158 0 50440162 Delaware/Pecos Basins Barnett Continuous Shale Gas 5044 Permian Basin "33,172.23" Basin and Range (BARA) 87.23908296 94 Sacramento-Monzano Mountain (SMMT) 8.330223065 5 Stockton Plateau (STPT) 4.429936451 1 Texas High Plains (TXHP) 0.000757521 0 50440163 Midland Basin Woodford/Barnett Continuous Gas 5044 Permian Basin "7,759.96" Basin and Range (BARA) 8.545453828 12 Rolling Plains (RLPL) 21.55359902 18 Texas High Plains (TXHP) 69.90094716 70 50440164 Delaware Basin Wolfcamp Shale 5044 Permian Basin "7,846.40" 50440165 Spraberry Continuous Oil 5044 Permian Basin "11,096.57" Basin and Range (BARA) 5.409737793 5 Rolling Plains (RLPL) 44.99903591 45 Texas High Plains (TXHP) 49.5912263 50 50450161 Greater Newark East Frac-Barrier Continuous Barnett Shale Gas 5045 Bend Arch-Fort Worth Basin "4,027.39" Cross Timbers and Prairie (CRTP) 100 100 50450162 Extended Continuous Barnett Shale Gas 5045 Bend Arch-Fort Worth Basin "12,699.73" Edwards Plateau (EDPT) 7.71 7.71 Cross Timbers and Prairie (CRTP) 92.29 92.29 50450163 Hypothetical Basin-Arch Barnett Shale Oil 5045 Bend Arch-Fort Worth Basin "24,597.31" 50450261 Hypothetical Continuous Fractured Barnett Shale Oil 5045 Bend Arch-Fort Worth Basin "3,273.34" 50450481 Hypothetical Pennsylvanian-Lower Permian Coalbed Gas 5045 Bend Arch-Fort Worth Basin "12,882.25" 50470281 Cretaceous Olmos Coalbed Gas 5047 Gulf Coast Cenozoic "4,222.60" Rio Grande Plain (RGPL) 95.0221462 95.0221462 Stockton Plateau (STPT) 4.977853804 4.977853804 50470381 Wilcox Coalbed Gas 5047 Gulf Coast Cenozoic "162,731.17" Arkansas Valley (ARVL) 0.120869085 0.120869085 "Coastal Plains and Flatwoods, Lower (CPFL)" 19.27713855 19.27713855 "Coastal Plains and Flatwoods, Western Gulf (CPFW)" 8.124804692 8.124804692 "Coastal Plains, Middle (CPMD)" 14.89605238 14.89605238 Louisiana Coast Prairies and Marshes (LCPM) 1.228811366 1.228811366 "Mid Coastal Plains, Western (MCPW)" 12.57935645 12.57935645 Mississippi Alluvial Basin (MABA) 31.15869165 31.15869165 Oak Woods and Prairies (OWPR) 7.650905118 7.650905118 Rio Grande Plain (RGPL) 2.192114269 2.192114269 50470481 Cretaceous-Tertiary Coalbed Gas 5047 Gulf Coast Cenozoic "473,437.58" 50490161 Haynesville Sabine Platform Shale Gas 5049 Gulf Coast Mesozoic "23,281.88" "Coastal Plains and Flatwoods, Western Gulf (CPFW)" 13.47513998 12 "Mid Coastal Plains, Western (MCPW)" 74.39920293 75 Mississippi Alluvial Basin (MABA) 12.12565709 13 50490162 Haynesville Greater Gulf Basin Shale Gas 5049 Gulf Coast Mesozoic "253,904.41" 50490163 Mid-Bossier Sabine Platform Shale Gas 5049 Gulf Coast Mesozoic "5,249.29" "Coastal Plains and Flatwoods, Western Gulf (CPFW)" 14.7151438 14 "Mid Coastal Plains, Western (MCPW)" 72.55792414 73 Mississippi Alluvial Basin (MABA) 12.72693206 13 50490164 Bossier Greater Gulf Basin Shale Gas 5049 Gulf Coast Mesozoic "312,942.88" 50490165 Maverick Basin Pearsall Shale Gas 5049 Gulf Coast Mesozoic "42,582.46" Edwards Plateau (EDPT) 3.92793075 3.92793075 Oak Woods and Prairies (OWPR) 2.628251092 2.628251092 Rio Grande Plain (RGPL) 86.56317359 86.56317359 Stockton Plateau (STPT) 6.880644573 6.880644573 50490166 Greater Gulf Basin Lower Cretaceous Shale Gas 5049 Gulf Coast Mesozoic "489,075.40" 50490167 Eagle Ford Shale Gas 5049 Gulf Coast Mesozoic "193,982.44" Central Gulf Prairies and Marshes (CGPM) 12.2861874 12.2861874 "Coastal Plains and Flatwoods, Lower (CPFL)" 0.263897459 0.263897459 "Coastal Plains and Flatwoods, Western Gulf (CPFW)" 5.21876444 5.21876444 Eastern Gulf Prairies and Marshes (EGPM) 3.022100701 3.022100701 Louisiana Coast Prairies and Marshes (LCPM) 16.86957031 16.86957031 "Mid Coastal Plains, Western (MCPW)" 6.446166751 6.446166751 Mississippi Alluvial Basin (MABA) 5.565310841 5.565310841 Oak Woods and Prairies (OWPR) 7.894344365 7.894344365 Rio Grande Plain (RGPL) 24.81925237 24.81925237 Southern Gulf Prairies and Marshes (SGPM) 3.632355679 3.632355679 50490168 Austin Pearsall-Giddings Area Oil 5049 Gulf Coast Mesozoic "30,642.74" Blackland Prairies (BLPR) 3.048619721 3.048619721 Oak Woods and Prairies (OWPR) 38.65939183 38.65939183 Rio Grande Plain (RGPL) 55.25536808 55.25536808 Stockton Plateau (STPT) 3.036620378 3.036620378 50490169 Smackover Downdip Continuous Gas 5049 Gulf Coast Mesozoic "191,302.16" 50490170 Eagle Ford Shale Oil 5049 Gulf Coast Mesozoic "74,934.79" Blackland Prairies (BLPR) 0.004070739 0.004070739 "Coastal Plains and Flatwoods, Lower (CPFL)" 8.940893124 8.940893124 "Coastal Plains and Flatwoods, Western Gulf (CPFW)" 14.76075745 14.76075745 "Coastal Plains, Middle (CPMD)" 3.301427801 3.301427801 Louisiana Coast Prairies and Marshes (LCPM) 4.053878832 4.053878832 "Mid Coastal Plains, Western (MCPW)" 9.600435643 9.600435643 Mississippi Alluvial Basin (MABA) 11.05042461 11.05042461 Oak Woods and Prairies (OWPR) 20.21894743 20.21894743 Rio Grande Plain (RGPL) 24.37225321 24.37225321 Stockton Plateau (STPT) 0.884039412 0.884039412 50580161 Woodford Shale Gas 5058 Anadarko Basin "26,884.85" Cross Timbers and Prairie (CRTP) 1.51976284 1 Redbed Plains (RBPL) 82.33204729 85.5 South-Central Great Plains (SCGP) 0.982692467 1 Southern High Plains (SHPL) 0.4903882 0.5 Texas High Plains (TXHP) 14.67510921 12 50580162 Woodford Shale Oil 5058 Anadarko Basin "50,830.01" Cross Timbers and Prairie (CRTP) 0.005149145 0 Redbed Plains (RBPL) 21.78705134 30 Rolling Plains (RLPL) 0.064828161 0 South-Central Great Plains (SCGP) 47.22726048 40 Southern High Plains (SHPL) 13.11264525 13 Texas High Plains (TXHP) 17.80306562 17 50580261 Thirteen Finger Limestone-Atoka Shale Gas 5058 Anadarko Basin "21,809.69" Redbed Plains (RBPL) 72.75524978 75 South-Central Great Plains (SCGP) 0.280271701 0 Southern High Plains (SHPL) 3.50568604 2 Texas High Plains (TXHP) 23.45879248 23 50620161 Arkoma-Ouachita Foredeep Continuous 5062 Arkoma Basin "17,986.43" Arkansas Valley (ARVL) 77.78350043 80 Cross Timbers and Prairie (CRTP) 11.12705037 10 Mississippi Alluvial Basin (MABA) 2.832065803 0 Ouachita Mountains (OUMT) 8.257383396 10 50620261 Woodford Shale Gas 5062 Arkoma Basin "24,750.59" Arkansas Valley (ARVL) 29.01430201 34 Boston Mountains (BSMT) 8.607638865 4 Cross Timbers and Prairie (CRTP) 58.28843848 60 Osage Plains (OSPL) 4.089620643 2 50620262 Chattanooga Shale Gas 5062 Arkoma Basin "22,078.48" Arkansas Valley (ARVL) 40.23059858 55 Boston Mountains (BSMT) 41.29653774 45 Mississippi Alluvial Basin (MABA) 16.07832191 0 Ozark Highlands (OZHL) 2.394541766 0 50620361 Fayetteville Shale Gas - Mississippi Embayment 5062 Arkoma Basin "4,773.35" 50620362 Fayetteville Shale Gas - High Gamma-Ray Depocenter 5062 Arkoma Basin "10,581.56" Arkansas Valley (ARVL) 51.13756516 55 Boston Mountains (BSMT) 42.45526447 40 Mississippi Alluvial Basin (MABA) 1.879153686 2 Ozark Highlands (OZHL) 4.528016678 3 50620363 Fayetteville Shale Gas - Western Arkansas Basin Margin 5062 Arkoma Basin "13,927.31" Arkansas Valley (ARVL) 46.57124098 55 Boston Mountains (BSMT) 53.07420527 45 Ozark Highlands (OZHL) 0.354553756 0 50620364 Caney Shale Gas 5062 Arkoma Basin "20,134.26" Arkansas Valley (ARVL) 13.64084718 15 Boston Mountains (BSMT) 9.69129776 5 Cross Timbers and Prairie (CRTP) 71.64136903 75 Osage Plains (OSPL) 5.026486028 5 50620481 Arkoma Coalbed Gas 5062 Arkoma Basin "18,139.62" Arkansas Valley (ARVL) 23.49645809 23.5 Boston Mountains (BSMT) 8.682725963 8.7 Cross Timbers and Prairie (CRTP) 65.92790016 65.9 Osage Plains (OSPL) 1.892915788 1.9 50630361 Devonian Antrim Continuous Oil 5063 Michigan Basin "146,433.58" 50630362 Ordovician Collingwood Shale Gas 5063 Michigan Basin "95,676.21" 50630561 Devonian Antrim Continuous Gas 5063 Michigan Basin "146,433.58" Central Loess Plains (CNLP) 1.63559312 0 "Central Till Plains, Beech-Maple (CTPB)" 0.931058015 0 Erie and Ontario Lake Plain (EOLP) 6.154346462 0 Northern Great Lakes (NGLK) 26.26556605 90 South Central Great Lakes (SCGL) 41.8073363 0 Southwestern Great Lakes Morainal (SWGL) 1.063446526 0 50630681 Pennsylvanian Saginaw Coalbed Gas 5063 Michigan Basin 166.42 50640261 Ordovician Maquoketa Continuous 5064 Illinois Basin "257,429.47" 50640361 Devonian to Mississippian New Albany Continuous Gas 5064 Illinois Basin "201,029.91" Central Dissected Till Plains (CDTP) 0.837939759 1 Central Loess Plains (CNLP) 29.48725311 30 "Central Till Plains, Beech-Maple (CTPB)" 5.988929333 6 "Central Till Plains, Oak-Hickory (CTPO)" 20.48940151 20 "Interior Low Plateau, Bluegrass (ILPB)" 3.242573813 3 "Interior Low Plateau, Highland Rim (ILPH)" 18.84169584 19 "Interior Low Plateau, Shawnee Hills (ILPS)" 18.16090104 18 Mississippi Alluvial Basin (MABA) 0.846255605 1 Ozark Highlands (OZHL) 7.74613E-05 0 South Central Great Lakes (SCGL) 2.104872525 2 50640481 Desmoinesian-Virgilian Coalbed Gas 5064 Illinois Basin "113,745.90" Central Dissected Till Plains (CDTP) 0.090569867 0 Central Loess Plains (CNLP) 47.76152883 48 "Central Till Plains, Beech-Maple (CTPB)" 2.052180221 2 "Central Till Plains, Oak-Hickory (CTPO)" 35.23578824 35 "Interior Low Plateau, Shawnee Hills (ILPS)" 13.86530852 14 Ozark Highlands (OZHL) 0.994624322 1 50640561 Elvins Shale Gas 5064 Illinois Basin 50650281 Warrior Basin 5065 Warrior Basin "18,470.92" "Coastal Plains, Middle (CPMD)" 67.83 67.83 Southern Cumberland Plateau (SCPT) 32.17 32.17 50670361 Clinton-Medina Basin Center 5067 Appalachian Basin "38,262.54" Northern Glaciated Allegheny Plateau (NGAP) 0.1 0 Northern Unglaciated Allegheny Plateau (NUAP) 6.65 7 Southern Unglaciated Allegheny Plateau (SUAP) 67.76 68 Western Glaciated Allegheny Plateau (WGAP) 25.49 25 50670362 Clinton-Medina Transitional Northeast 5067 Appalachian Basin "17,777.25" Erie and Ontario Lake Plain (EOLP) 9.58 10 Northern Glaciated Allegheny Plateau (NGAP) 88.99 90 Northern Unglaciated Allegheny Plateau (NUAP) 0.7 0 Western Glaciated Allegheny Plateau (WGAP) 0.73 0 50670363 Clinton-Medina Transitional 5067 Appalachian Basin "52,754.29" "Central Till Plains, Beech-Maple (CTPB)" 2.75 2.68 Erie and Ontario Lake Plain (EOLP) 17.48 17.03 Northern Glaciated Allegheny Plateau (NGAP) 3.49 3.4 Southern Unglaciated Allegheny Plateau (SUAP) 24.46 23.82 Western Glaciated Allegheny Plateau (WGAP) 33.97 33.06 50670364 Tuscarora Basin Center 5067 Appalachian Basin "110,062.68" Allegheny Mountains (ALMT) 21.78 20 Hudson Valley (HDVA) 1 0 Northern Cumberland Mountains (NCMT) 8.57 10 Northern Glaciated Allegheny Plateau (NGAP) 16.2 16 Northern Ridge & Valley (NRVA) 10.79 4 Northern Unglaciated Allegheny Plateau (NUAP) 11.44 10 Southern Unglaciated Allegheny Plateau (SUAP) 30.22 40 50670461 Greater Big Sandy 5067 Appalachian Basin "27,630.59" Northern Cumberland Mountains (NCMT) 13.45 1 Northern Cumberland Plateau (NCPT) 34.5 49 Southern Cumberland Mountains (SCMT) 9.34 1 Southern Unglaciated Allegheny Plateau (SUAP) 42.71 49 50670462 Northwestern Ohio Shale 5067 Appalachian Basin "118,727.48" "Central Till Plains, Beech-Maple (CTPB)" 5.97 6 Erie and Ontario Lake Plain (EOLP) 7.66 8 "Interior Low Plateau, Bluegrass (ILPB)" 2.27 4 "Interior Low Plateau, Highland Rim (ILPH)" 10.67 12 Northern Cumberland Plateau (NCPT) 13.49 15 Northern Glaciated Allegheny Plateau (NGAP) 3.12 3 Northern Unglaciated Allegheny Plateau (NUAP) 0.07 0 Southern Cumberland Mountains (SCMT) 1.53 0 Southern Unglaciated Allegheny Plateau (SUAP) 23.51 25 Western Glaciated Allegheny Plateau (WGAP) 22.77 25 50670463 Devonian Siltstone and Shale 5067 Appalachian Basin "59,348.24" Allegheny Mountains (ALMT) 3.01 3 Erie and Ontario Lake Plain (EOLP) 1.75 0 Northern Cumberland Mountains (NCMT) 16.76 20 Northern Glaciated Allegheny Plateau (NGAP) 13.79 10 Northern Ridge & Valley (NRVA) 1.09 2 Northern Unglaciated Allegheny Plateau (NUAP) 12.81 10 Southern Cumberland Mountains (SCMT) 0.46 0 Southern Unglaciated Allegheny Plateau (SUAP) 44.58 50 Western Glaciated Allegheny Plateau (WGAP) 5.75 5 50670464 Marcellus Shale 5067 Appalachian Basin "248,251.99" Allegheny Mountains (ALMT) 9.81 3 Catskill Mountains (CTMT) 2.56 3 Central Ridge and Valley (CNRV) 0 0 "Central Till Plains, Beech-Maple (CTPB)" 0.2 0 Erie and Ontario Lake Plain (EOLP) 3.84 4 Hudson Valley (HDVA) 0.89 0 Northern Cumberland Mountains (NCMT) 4.17 5 Northern Glaciated Allegheny Plateau (NGAP) 19.2 20 Northern Ridge & Valley (NRVA) 14.19 10 Northern Unglaciated Allegheny Plateau (NUAP) 6.14 20 Southern Cumberland Mountains (SCMT) 0.08 0 Southern Unglaciated Allegheny Plateau (SUAP) 25.33 25 Western Glaciated Allegheny Plateau (WGAP) 9.57 10 50670465 Catskill Sandstones and Siltstones 5067 Appalachian Basin "110,286.86" Allegheny Mountains (ALMT) 16.61 20 Catskill Mountains (CTMT) 2.27 1 Erie and Ontario Lake Plain (EOLP) 2.08 1 Northern Cumberland Mountains (NCMT) 0.22 1 Northern Glaciated Allegheny Plateau (NGAP) 28.02 5 Northern Ridge & Valley (NRVA) 5.24 2 Northern Unglaciated Allegheny Plateau (NUAP) 13.78 24 Southern Unglaciated Allegheny Plateau (SUAP) 29.25 45 Western Glaciated Allegheny Plateau (WGAP) 2.53 1 50670466 Berea Sandstone 5067 Appalachian Basin "134,311.54" Allegheny Mountains (ALMT) 7.99 1 "Central Till Plains, Beech-Maple (CTPB)" 2.46 1 Erie and Ontario Lake Plain (EOLP) 0.23 0 Northern Cumberland Mountains (NCMT) 8.64 15 Northern Cumberland Plateau (NCPT) 1.66 1 Northern Ridge & Valley (NRVA) 0.97 1 Northern Unglaciated Allegheny Plateau (NUAP) 6.35 1 Southern Cumberland Mountains (SCMT) 0.49 2 Southern Unglaciated Allegheny Plateau (SUAP) 54.15 70 Western Glaciated Allegheny Plateau (WGAP) 17.06 8 50670467 Foldbelt Marcellus 5067 Appalachian Basin "49,354.83" Allegheny Mountains (ALMT) 0.642880004 0.642880004 Central Ridge and Valley (CNRV) 0.157651278 0.157651278 Northern Cumberland Mountains (NCMT) 2.426893012 2.426893012 Northern Ridge & Valley (NRVA) 94.97310245 94.97310245 Southern Cumberland Mountains (SCMT) 1.799473254 1.799473254 50670468 Interior Marcellus 5067 Appalachian Basin "117,054.97" Allegheny Mountains (ALMT) 17.00716846 17.00716846 Catskill Mountains (CTMT) 3.558682711 3.558682711 Erie and Ontario Lake Plain (EOLP) 0.130826604 0.130826604 Hudson Valley (HDVA) 0.103548108 0.103548108 Northern Cumberland Mountains (NCMT) 0.587861574 0.587861574 Northern Glaciated Allegheny Plateau (NGAP) 31.75380729 31.75380729 Northern Ridge & Valley (NRVA) 8.195997076 8.195997076 Northern Unglaciated Allegheny Plateau (NUAP) 11.4882154 11.4882154 Southern Unglaciated Allegheny Plateau (SUAP) 27.04299479 27.04299479 Western Glaciated Allegheny Plateau (WGAP) 0.130897992 0.130897992 50670469 Western Margin Marcellus 5067 Appalachian Basin "103,176.42" Allegheny Mountains (ALMT) 4.38818956 4.38818956 Catskill Mountains (CTMT) 2.071184396 2.071184396 "Central Till Plains, Beech-Maple (CTPB)" 0.083835147 0.083835147 Erie and Ontario Lake Plain (EOLP) 8.273642476 8.273642476 Hudson Valley (HDVA) 1.033548886 1.033548886 Northern Cumberland Mountains (NCMT) 9.138440292 9.138440292 Northern Glaciated Allegheny Plateau (NGAP) 8.883010253 8.883010253 Northern Ridge & Valley (NRVA) 4.669744959 4.669744959 Northern Unglaciated Allegheny Plateau (NUAP) 1.762059912 1.762059912 Southern Unglaciated Allegheny Plateau (SUAP) 32.56381694 32.56381694 Western Glaciated Allegheny Plateau (WGAP) 22.0382437 22.0382437 50670581 Pocahontas Basin 5067 Appalachian Basin "10,024.46" Allegheny Mountains (ALMT) 5.59 5.59 Northern Cumberland Mountains (NCMT) 69.96 69.96 Northern Cumberland Plateau (NCPT) 8.6 8.6 Northern Ridge & Valley (NRVA) 0.19 0.19 Southern Cumberland Mountains (SCMT) 15.66 15.66 50670582 Eastern Dunkard Basin 5067 Appalachian Basin "32,051.90" Allegheny Mountains (ALMT) 5.4 5.4 Northern Unglaciated Allegheny Plateau (NUAP) 0.13 0.13 Southern Unglaciated Allegheny Plateau (SUAP) 94.19 94.19 Western Glaciated Allegheny Plateau (WGAP) 0.28 0.28 50670583 Western Dunkard Basin 5067 Appalachian Basin "19,377.65" 50670584 Central Appalachian Shelf 5067 Appalachian Basin "34,955.99" 50670585 Appalachian Anthracite and Semi-Anthracite 5067 Appalachian Basin "7,599.96" 50670681 Cahaba Basin 5067 Appalachian Basin "1,507.07" 50700161 Taylorsville Basin Continuous Gas 5070 Atlantic Coastal Plain "5,457.62" Middle Atlantic Coastal Plain (MACP) 81.86825991 81.86825991 Southern Appalachian Piedmont (SAPD) 7.003246859 7.003246859 50700261 Richmond Basin Continuous Gas 5070 Atlantic Coastal Plain 468.91 Southern Appalachian Piedmont (SAPD) 100 100 50700361 South Newark Basin Continuous Gas 5070 Atlantic Coastal Plain "3,712.20" Lower New England (LNEN) 2.746283027 2.746283027 Northern Appalacian Piedmont (NAPD) 95.11296557 95.11296557 Northern Ridge & Valley (NRVA) 1.278673304 1.278673304 Upper Atlantic Coastal Plain (UACP) 0.862078101 0.862078101 50700362 North Newark Basin Continuous Gas 5070 Atlantic Coastal Plain "2,554.37" 50700461 Deep River Basin Continuous Gas 5070 Atlantic Coastal Plain "3,934.84" Southern Appalachian Piedmont (SAPD) 100 100 50700561 South Georgia Basin Continuous Gas 5070 Atlantic Coastal Plain "64,453.60" 50700562 North Florida Basin Continuous Gas 5070 Atlantic Coastal Plain "25,583.68" 50700661 Hartford Basin Continuous Gas 5070 Atlantic Coastal Plain "3,623.69" 50700761 Gettysburg Basin Continuous Gas 5070 Atlantic Coastal Plain "2,403.53" 50700861 Delmarva Basin Continuous Gas 5070 Atlantic Coastal Plain "8,666.47" 50700961 Culpepper Basin Continuous Gas 5070 Atlantic Coastal Plain "2,325.45" 50701061 Dan River-Danville Basin Continuous Gas 5070 Atlantic Coastal Plain 865.91 Southern Appalachian Piedmont (SAPD) 100 100 50701161 Cumberland-Marlboro Basin Continuous Gas 5070 Atlantic Coastal Plain "2,975.56" 50701261 Florence Basin Continuous Gas 5070 Atlantic Coastal Plain "1,369.41" 53000281 Rio Escondido Basin Olmos Coalbed Gas 5300 Burgos Basin "4,504.49"