AU Number AU Province Number Province Area State 1 Name State 1 Area % State 1 Oil Volume % State 1 Gas Volume % State 2 Name State 2 Area % State 2 Oil Volume % State 2 Gas Volume % State 3 Name State 3 Area % State 3 Oil Volume % State 3 Gas Volume % State 4 Name State 4 Area % State 4 Oil Volume % State 4 Gas Volume % State 5 Name State 5 Area % State 5 Oil Volume % State 5 Gas Volume % State 6 Name State 6 Area % State 6 Oil Volume % State 6 Gas Volume % State 7 Name State 7 Area % State 7 Oil Volume % State 7 Gas Volume % State 8 Name State 8 Area % State 8 Oil Volume % State 8 Gas Volume % State 9 Name State 9 Area % State 9 Oil Volume % State 9 Gas Volume % State 10 Name State 10 Area % State 10 Oil Volume % State 10 Gas Volume % State 11 Name State 11 Area % State 11 Oil Volume % State 11 Gas Volume % State 12 Name State 12 Area % State 12 Oil Volume % State 12 Gas Volume % 50010181 Nanushuk Formation Coalbed Gas 5001 Northern Alaska "106,197.96" Alaska 100 100 50010182 Prince Creek–Tuluvak Formations Coalbed Gas 5001 Northern Alaska "38,929.29" Alaska 100 100 50010183 Sagavanirktok Formation Coalbed Gas 5001 Northern Alaska "22,843.53" Alaska 100 100 50020181 Coalbed Gas 5002 Central Alaska "28,277.06" 50030161 Tuxedni-Naknek Continuous Gas 5003 Southern Alaska 906.33 Alaska 100 100 50030281 Cook Inlet Coalbed Gas 5003 Southern Alaska "34,299.82" Alaska 100 100 50040381 Eocene Coalbed Gas 5004 Western Oregon-Washington "44,665.63" Oregon 58.7320769 58.7320769 Washington 41.2679231 41.2679231 50050161 Columbia Basin Continuous Gas 5005 Eastern Oregon-Washington "16,500.60" Oregon 0.5 0 Washington 99.5 100 50200161 "Deep (6,000 feet plus) Coal and Sandstone Gas" 5020 Uinta-Piceance 632.48 Utah 100 100 50200181 Northern Coal Fairway/Drunkards Wash 5020 Uinta-Piceance 650.56 Utah 100 100 50200182 Central Coal Fairway/Buzzards Bench 5020 Uinta-Piceance "1,021.20" Utah 100 100 50200183 Southern Coal Fairway 5020 Uinta-Piceance 678.03 Utah 100 100 50200184 Joes Valley and Messina Grabens 5020 Uinta-Piceance 294.71 50200185 Southern Coal Outcrop 5020 Uinta-Piceance 144.00 Utah 100 100 50200261 Uinta Basin Continuous Gas 5020 Uinta-Piceance "8,367.01" Utah 100 100 50200262 Uinta Basin Transitional Gas 5020 Uinta-Piceance "5,189.87" Utah 100 100 50200263 Piceance Basin Continuous Gas 5020 Uinta-Piceance "5,152.97" Colorado 100 100 50200264 Piceance Basin Transitional Gas 5020 Uinta-Piceance "2,534.99" Colorado 100 100 50200281 Uinta Basin Blackhawk Coalbed Gas 5020 Uinta-Piceance "7,073.15" Utah 100 100 50200282 Mesaverde Group Coalbed Gas 5020 Uinta-Piceance "16,549.73" Colorado 73.42 90 Utah 26.58 10 50200361 Piceance Basin Continuous Gas 5020 Uinta-Piceance "8,328.04" Colorado 100 100 50200362 Uinta Basin Continuous Gas 5020 Uinta-Piceance "17,066.17" Colorado 1.54 2 Utah 98.46 98 50200363 Uinta-Piceance Transitional and Migrated Gas 5020 Uinta-Piceance "10,278.39" Colorado 47.19 65 Utah 52.81 35 50200561 Deep Uinta Overpressured Continuous Oil 5020 Uinta-Piceance "2,884.55" Utah 100 100 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" Colorado 25.26627878 25 Utah 74.73372122 75 50210362 Cane Creek Shale Gas 5021 Paradox Basin "11,405.47" Colorado 54.04183284 50 Utah 45.95816716 50 50210363 "Gothic, Chimney Rock, Hovenweep Shale Oil" 5021 Paradox Basin "42,776.38" Arizona 12.91986601 5 Colorado 5.636055609 8 New Mexico 22.49973488 12 Utah 58.94434349 75 50210364 "Gothic, Chimney Rock, Hovenweep Shale Gas" 5021 Paradox Basin "25,726.17" Colorado 54.95453252 60 New Mexico 4.687393726 2 Utah 40.35807375 38 50210461 Manning Canyon 5021 Paradox Basin "12,477.35" 50210581 Kaiparowits Plateau 5021 Paradox Basin "4,512.04" Utah 100 100 50210582 Henry Mountains 5021 Paradox Basin "1,536.48" 50220161 Pictured Cliffs Continuous Gas 5022 San Juan Basin "17,216.13" Colorado 13.54845869 15 New Mexico 86.45154131 85 50220181 Fruitland Fairway Coalbed Gas 5022 San Juan Basin 920.01 Colorado 28.51960553 28.51960553 New Mexico 71.48039447 71.48039447 50220182 Basin Fruitland Coalbed Gas 5022 San Juan Basin "16,296.12" Colorado 12.7032515 22 New Mexico 87.2967485 78 50220261 Lewis Continuous Gas 5022 San Juan Basin "19,443.05" Colorado 14.62813329 15 New Mexico 85.37186671 85 50220361 Mesaverde Central-Basin Continuous Gas 5022 San Juan Basin "9,501.72" Colorado 22.239747 22 New Mexico 77.760253 78 50220362 Mancos Sandstones Continuous Gas 5022 San Juan Basin "7,860.88" Colorado 26.49627052 15 New Mexico 73.50372948 85 50220363 Dakota-Greenhorn Continuous Gas 5022 San Juan Basin "10,171.07" Colorado 20.00810284 10 New Mexico 79.99189716 90 50220381 Menefee Coalbed Gas 5022 San Juan Basin "19,413.36" Colorado 9.703726417 9 New Mexico 90.29627358 91 50270361 Bakken Continuous Oil 5027 Montana Thrust Belt "5,955.86" 50270561 Marias River Shale Continuous Oil 5027 Montana Thrust Belt "4,195.85" Montana 100 100 50270681 Jurassic-Cretaceous Coalbed Methane 5027 Montana Thrust Belt "3,878.63" 50280161 Judith River Formation 5028 North-Central Montana "162,393.47" Montana 100 100 50280162 Eagle Sandstone and Claggett Shale East 5028 North-Central Montana "117,314.11" Montana 100 100 50280163 Eagle Sandstone and Claggett Shale West 5028 North-Central Montana "34,722.90" Montana 100 100 50280164 Niobrara-Carlile 5028 North-Central Montana "242,439.45" Montana 100 100 50280165 Greenhorn-Lower Belle Fourche 5028 North-Central Montana "146,089.07" Montana 100 100 50280166 Greenhorn-Upper Belle Fourche 5028 North-Central Montana "127,606.33" Montana 100 100 50280167 Bowdoin Dome 5028 North-Central Montana "5,465.04" Montana 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" Wyoming 100 100 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" Montana 54.45904122 50 North Dakota 45.54095878 50 50310162 Central Basin-Poplar Dome 5031 Williston Basin "12,733.77" Montana 44.44908029 45 North Dakota 55.55091971 55 50310163 Nesson-Little Knife Structural 5031 Williston Basin "9,394.06" North Dakota 100 100 50310164 Eastern Expulsion Threshold 5031 Williston Basin "7,853.80" North Dakota 100 100 50310165 Northwest Expulsion Threshold 5031 Williston Basin "14,213.84" Montana 73.96517337 75 North Dakota 26.03482663 25 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" Montana 34.45236398 34 North Dakota 62.1542733 65 South Dakota 3.393362717 1 50330181 Wasatch Formation 5033 Powder River Basin "19,476.90" Wyoming 97.46336388 98 Montana 2.536636115 2 50330182 Upper Fort Union Formation 5033 Powder River Basin "43,142.94" Wyoming 64.21874002 65 Montana 35.78125998 35 50330183 Lower Fort Union-Lance Formations 5033 Powder River Basin "65,218.76" Wyoming 50.42400239 98 Montana 49.57599761 2 50330261 Mowry Continuous Oil 5033 Powder River Basin "25,624.96" Montana 0.208168677 0.5 Wyoming 99.79183134 99.5 50330361 Niobrara Continuous Oil 5033 Powder River Basin "18,641.96" Wyoming 100 100 50330461 Shallow Continuous Biogenic Gas 5033 Powder River Basin "79,793.99" Montana 50.29357016 50.29357016 Wyoming 49.70642984 49.70642984 50340261 Muddy-Frontier Sandstone and Mowry Fractured Shale Continuous Gas 5034 Big Horn Basin "3,922.86" Wyoming 100 100 50340262 Mowry Fractured Shale Continuous Oil 5034 Big Horn Basin "2,615.96" Wyoming 100 100 50340263 Cody Sandstone Continuous Gas 5034 Big Horn Basin "1,699.84" Wyoming 100 100 50340264 Mesaverde Sandstone Continuous Gas 5034 Big Horn Basin 895.80 Wyoming 100 100 50340281 Mesaverde-Meeteetse Formation Coalbed Gas 5034 Big Horn Basin "6,681.83" Wyoming 85.50375208 99 Montana 14.49624792 1 50340282 Fort Union Formation Coalbed Gas 5034 Big Horn Basin "9,789.45" Wyoming 88.26458247 30 Montana 11.73541753 70 50350261 Frontier-Muddy Continuous Gas 5035 Wind River Basin "7,083.60" Wyoming 100 100 50350262 Cody Sandstones Continuous Gas 5035 Wind River Basin "4,589.52" Wyoming 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" Wyoming 100 100 50350265 Lance-Fort Union Sandstone Gas 5035 Wind River Basin "3,590.57" Wyoming 100 100 50350281 Mesaverde Coalbed Gas 5035 Wind River Basin "2,624.51" Wyoming 100 100 50350282 Meeteetse Coalbed Gas 5035 Wind River Basin "1,485.25" Wyoming 100 100 50350283 Fort Union Coalbed Gas 5035 Wind River Basin "5,744.11" Wyoming 100 100 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" Wyoming 81.62 70 Utah 16.35 30 Idaho 2.03 0 50370261 Mowry Continuous Gas 5037 Southwestern Wyoming "46,370.40" Colorado 12.16161246 0.2 Utah 1.332653088 0.2 Wyoming 86.50573445 99.6 50370361 Niobrara Continuous Oil 5037 Southwestern Wyoming "11,794.30" Colorado 67.18123858 75 Wyoming 32.81876142 25 50370362 Niobrara Continuous Gas 5037 Southwestern Wyoming "9,923.23" 50370461 Hilliard-Baxter-Mancos Continuous Gas 5037 Southwestern Wyoming "42,514.88" Colorado 15.97263244 15.97263244 Utah 0.842252203 0.842252203 Wyoming 83.18511536 83.18511536 50370561 Almond Continuous Gas 5037 Southwestern Wyoming "13,570.13" Colorado 21.46205163 15 Wyoming 78.53794837 85 50370562 Rock Springs-Ericson Continuous Gas 5037 Southwestern Wyoming "17,648.69" Colorado 25.6672569 15 Wyoming 74.3327431 85 50370581 Mesaverde Coalbed Gas 5037 Southwestern Wyoming "12,081.35" Colorado 35.93916021 50 Wyoming 64.06083979 50 50370661 Mesaverde-Lance-Fort Union Continuous Gas 5037 Southwestern Wyoming "14,089.25" Utah 0.902158591 0 Wyoming 99.09784141 100 50370681 Mesaverde Coalbed Gas 5037 Southwestern Wyoming "1,322.67" Colorado 1.805722524 1 Utah 5.606819486 3 Wyoming 92.58745799 96 50370682 Fort Union Coalbed Gas 5037 Southwestern Wyoming "4,794.28" Colorado 0.487848125 0 Utah 1.002857398 0 Wyoming 98.50929448 100 50370761 Lewis Continuous Gas 5037 Southwestern Wyoming "13,394.34" Colorado 21.5641502 21.5641502 Wyoming 78.4358498 78.4358498 50370861 Lance-Fort Union Continuous Gas 5037 Southwestern Wyoming "9,890.05" Colorado 19.37540901 15 Wyoming 80.62459099 85 50370881 Lance Coalbed Gas 5037 Southwestern Wyoming "9,514.78" Colorado 33.2666798 10 Wyoming 66.7333202 90 50370882 Fort Union Coalbed Gas 5037 Southwestern Wyoming "12,332.21" Colorado 23.58012399 10 Wyoming 76.41987601 90 50370961 Wasatch-Green River Continuous Gas 5037 Southwestern Wyoming "13,552.81" 50370981 Wasatch-Green River Coalbed Gas 5037 Southwestern Wyoming "2,689.54" Colorado 12.65647187 1 Wyoming 87.34352813 99 50390261 Fractured Niobrara Limestone (Silo Field Area) 5039 Denver Basin "2,769.61" Wyoming 100 100 50390361 Fractured Pierre Shale 5039 Denver Basin "1,414.01" 50390661 Niobrara-Codell (Wattenberg Area) 5039 Denver Basin "8,116.74" Colorado 100 100 50390662 Dakota Group Basin-Center Gas 5039 Denver Basin "5,645.73" Colorado 100 100 50390761 Niobrara Chalk 5039 Denver Basin "193,748.83" Colorado 16.1 28 Kansas 4.3 6 Nebraska 40 44 South Dakota 35 20 North Dakota 4.6 2 50410181 Raton Coalbed Gas 5041 Raton Basin-Sierra Grande Uplift "5,310.48" Colorado 59.14 60 New Mexico 40.86 40 50410182 Vermejo Coalbed Gas 5041 Raton Basin-Sierra Grande Uplift "5,310.48" Colorado 59.14 40 New Mexico 40.86 60 50440161 Delaware/Pecos Basins Woodford Continuous Shale Gas 5044 Permian Basin "23,771.25" New Mexico 24.51598846 25 Texas 75.48401154 75 50440162 Delaware/Pecos Basins Barnett Continuous Shale Gas 5044 Permian Basin "33,172.23" New Mexico 33.70318392 30 Texas 66.29681608 70 50440163 Midland Basin Woodford/Barnett Continuous Gas 5044 Permian Basin "7,759.96" Texas 100 100 50440164 Delaware Basin Wolfcamp Shale 5044 Permian Basin "7,846.40" 50440165 Spraberry Continuous Oil 5044 Permian Basin "11,096.57" Texas 100 100 50450161 Greater Newark East Frac-Barrier Continuous Barnett Shale Gas 5045 Bend Arch-Fort Worth Basin "4,027.39" Texas 100 100 50450162 Extended Continuous Barnett Shale Gas 5045 Bend Arch-Fort Worth Basin "12,699.73" Texas 100 100 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" Texas 100 100 50470381 Wilcox Coalbed Gas 5047 Gulf Coast Cenozoic "162,731.17" Texas 16.34739767 16.34739767 Louisiana 28.27796617 28.27796617 Mississippi 37.3920921 37.3920921 Alabama 4.445165849 4.445165849 Arkansas 13.5373782 13.5373782 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" Louisiana 44.91102838 70 Texas 55.08897162 30 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" Louisiana 57.23414729 58 Texas 42.76585271 42 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" Texas 100 100 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" Louisiana 32.02275152 32.02275152 Texas 67.97724848 67.97724848 50490168 Austin Pearsall-Giddings Area Oil 5049 Gulf Coast Mesozoic "30,642.74" Texas 100 100 50490169 Smackover Downdip Continuous Gas 5049 Gulf Coast Mesozoic "191,302.16" 50490170 Eagle Ford Shale Oil 5049 Gulf Coast Mesozoic "74,934.79" Louisiana 34.55886653 34.55886653 Mississippi 6.564506141 6.564506141 Texas 58.87662733 58.87662733 50580161 Woodford Shale Gas 5058 Anadarko Basin "26,884.85" Oklahoma 90.96741735 95 Texas 9.032582654 5 50580162 Woodford Shale Oil 5058 Anadarko Basin "50,830.01" Kansas 9.660385302 1 Oklahoma 68.83639707 89 Texas 21.50321763 10 50580261 Thirteen Finger Limestone-Atoka Shale Gas 5058 Anadarko Basin "21,809.69" Oklahoma 87.48254453 90 Texas 12.51745547 10 50620161 Arkoma-Ouachita Foredeep Continuous 5062 Arkoma Basin "17,986.43" Arkansas 68.31720876 70 Oklahoma 31.68279124 30 50620261 Woodford Shale Gas 5062 Arkoma Basin "24,750.59" Arkansas 18.64133744 15 Oklahoma 81.35866256 85 50620262 Chattanooga Shale Gas 5062 Arkoma Basin "22,078.48" Arkansas 99.99356696 100 Oklahoma 0.006433038 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 100 100 50620363 Fayetteville Shale Gas - Western Arkansas Basin Margin 5062 Arkoma Basin "13,927.31" Arkansas 99.97381736 100 Oklahoma 0.026182643 0 50620364 Caney Shale Gas 5062 Arkoma Basin "20,134.26" Arkansas 0.007573617 0 Oklahoma 99.99242638 100 50620481 Arkoma Coalbed Gas 5062 Arkoma Basin "18,139.62" Arkansas 16.41181709 10 Oklahoma 83.58818291 90 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" Michigan 85.76141853 100 Ohio 3.019009013 0 Indiana 8.609157312 0 Wisconsin 2.610415143 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" Illinois 49.22710096 49 Indiana 22.48656379 23 Kentucky 20.5489611 21 Missouri 0.34530622 0 Tennessee 7.39206793 7 50640481 Desmoinesian-Virgilian Coalbed Gas 5064 Illinois Basin "113,745.90" Illinois 80.5003857 80 Indiana 12.05959774 12 Kentucky 6.87480921 7 Missouri 0.565207353 1 50640561 Elvins Shale Gas 5064 Illinois Basin 50650281 Warrior Basin 5065 Warrior Basin "18,470.92" Alabama 97.29 100 Mississippi 2.71 0 50670361 Clinton-Medina Basin Center 5067 Appalachian Basin "38,262.54" New York 0.68 1 Ohio 50.5 65 Pennsylvania 33.11 30 West Virginia 15.71 4 50670362 Clinton-Medina Transitional Northeast 5067 Appalachian Basin "17,777.25" New York 99.4 100 Pennsylvania 0.6 0 50670363 Clinton-Medina Transitional 5067 Appalachian Basin "52,754.29" Kentucky 1.55 1.55 New York 19.44 19.44 Ohio 63.88 63.88 Pennsylvania 11.61 11.61 West Virginia 3.52 3.52 50670364 Tuscarora Basin Center 5067 Appalachian Basin "110,062.68" Kentucky 0.2 0 Maryland 1.74 1 New Jersey 0.24 0 New York 4.61 1 Pennsylvania 49.68 43 Virginia 1.59 0 West Virginia 41.94 55 50670461 Greater Big Sandy 5067 Appalachian Basin "27,630.59" Ohio 0.14 0 Kentucky 61.95 70 Tennessee 1.27 1 Virginia 5.05 5 West Virginia 31.59 24 50670462 Northwestern Ohio Shale 5067 Appalachian Basin "118,727.48" Kentucky 21.18 25 New York 8.48 5 Ohio 52.85 55 Pennsylvania 8.1 10 Tennessee 8.69 5 West Virginia 0.7 0 50670463 Devonian Siltstone and Shale 5067 Appalachian Basin "59,348.24" New York 17.46 15 Ohio 7.72 5 Pennsylvania 32.99 35 Virginia 5.52 5 West Virginia 36.31 40 50670464 Marcellus Shale 5067 Appalachian Basin "248,251.99" Kentucky 0.03 0 Maryland 1.09 0 New York 20.06 5 Ohio 18.19 0 Pennsylvania 35.36 70 Tennessee 0.09 0 Virginia 3.85 5 West Virginia 21.33 20 50670465 Catskill Sandstones and Siltstones 5067 Appalachian Basin "110,286.86" Maryland 0.65 1 New York 21.17 8 Ohio 0.53 1 Pennsylvania 54.23 60 West Virginia 23.42 30 50670466 Berea Sandstone 5067 Appalachian Basin "134,311.54" Kentucky 7.72 20 Maryland 0.28 0 Ohio 34.66 25 Pennsylvania 30.57 10 Virginia 3.17 15 West Virginia 23.6 30 50670467 Foldbelt Marcellus 5067 Appalachian Basin "49,354.83" Maryland 2.281733276 2.281733276 Pennsylvania 41.70978352 41.70978352 Tennessee 1.849828622 1.849828622 Virginia 39.30281405 39.30281405 West Virginia 14.85584053 14.85584053 50670468 Interior Marcellus 5067 Appalachian Basin "117,054.97" Maryland 1.687160866 1.687160866 New York 22.98545696 22.98545696 Ohio 0.796312657 0.796312657 Pennsylvania 51.70199869 51.70199869 Virginia 0.710410987 0.710410987 West Virginia 22.11865984 22.11865984 50670469 Western Margin Marcellus 5067 Appalachian Basin "103,176.42" Kentucky 0.522288479 0.522288479 New York 20.04138674 20.04138674 Ohio 33.92034412 33.92034412 Pennsylvania 16.51826467 16.51826467 Virginia 1.640424809 1.640424809 West Virginia 27.35729118 27.35729118 50670581 Pocahontas Basin 5067 Appalachian Basin "10,024.46" Kentucky 18.49 5 Virginia 38.97 80 West Virginia 42.54 15 50670582 Eastern Dunkard Basin 5067 Appalachian Basin "32,051.90" Ohio 0.48 0 Pennsylvania 43.11 55 West Virginia 56.41 45 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" Maryland 42.5086553 42.5086553 Virginia 57.4913447 57.4913447 50700261 Richmond Basin Continuous Gas 5070 Atlantic Coastal Plain 468.91 Virginia 100 100 50700361 South Newark Basin Continuous Gas 5070 Atlantic Coastal Plain "3,712.20" New Jersey 43.27389784 43.27389784 Pennsylvania 56.72610216 56.72610216 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" North Carolina 99.75127704 99.75127704 South Carolina 0.24872296 0.24872296 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 Virginia 54.75725691 30 North Carolina 45.24274309 70 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" Mexico 100 100