AU Number AU Province Number Province Area Federal Federal Area % Federal Oil Volume % Federal Gas Volume % Private Private Area % Private Oil Volume % Private Gas Volume % Tribal Tribal Area % Tribal Oil Volume % Tribal Gas Volume % Other Other Area % Other Oil Volume % Other Gas Volume % State 1 State 1 Area % State 1 Oil Volume % State 1 Gas Volume % State 2 State 2 Area % State 2 Oil Volume % State 2 Gas Volume % State 3 State 3 Area % State 3 Oil Volume % State 3 Gas Volume % State 4 State 4 Area % State 4 Oil Volume % State 4 Gas Volume % State 5 State 5 Area % State 5 Oil Volume % State 5 Gas Volume % State 6 State 6 Area % State 6 Oil Volume % State 6 Gas Volume % State 7 State 7 Area % State 7 Oil Volume % State 7 Gas Volume % State 8 State 8 Area % State 8 Oil Volume % State 8 Gas Volume % State 9 State 9 Area % State 9 Oil Volume % State 9 Gas Volume % 50010181 Nanushuk Formation Coalbed Gas 5001 Northern Alaska "106,197.96" Federal Lands 70.25378279 95 Private Lands 0.028366292 0 Tribal Lands 11.26566932 3 Other Lands Alaska State Lands 11.29332865 1 Alaska Offshore 7.158852942 1 50010182 Prince Creek–Tuluvak Formations Coalbed Gas 5001 Northern Alaska "38,929.29" Federal Lands 43.91679132 70 Private Lands 0.026503153 0 Tribal Lands 4.851819478 5 Other Lands Alaska State Lands 43.3585667 25 Alaska Offshore 7.846319349 0 50010183 Sagavanirktok Formation Coalbed Gas 5001 Northern Alaska "22,843.53" Federal Lands 9.908443965 0 Private Lands 0.180551776 0.1 Tribal Lands 3.476670599 0 Other Lands Alaska State Lands 66.86458797 98 Alaska Offshore 19.56974569 1.9 50020181 Coalbed Gas 5002 Central Alaska "28,277.06" Federal Lands Private Lands Tribal Lands Other Lands 50030161 Tuxedni-Naknek Continuous Gas 5003 Southern Alaska 906.33 Federal Lands 0.557691342 0.557691342 Private Lands 19.94750086 19.94750086 Tribal Lands 4.47587075 4.47587075 Other Lands 1.469438002 1.469438002 Alaska State Lands 1.254555997 1.254555997 Alaska Offshore 72.29494305 72.29494305 50030281 Cook Inlet Coalbed Gas 5003 Southern Alaska "34,299.82" Federal Lands 13.85997263 13.85997263 Private Lands 8.424541192 8.424541192 Tribal Lands 7.921115554 7.921115554 Other Lands 0.113267184 0.113267184 Alaska State Lands 55.68895444 55.68895444 Alaska Offshore 13.99214901 13.99214901 50040381 Eocene Coalbed Gas 5004 Western Oregon-Washington "44,665.63" Federal Lands 13.19033862 13.19033862 Private Lands 76.41252763 76.41252763 Tribal Lands 0.816448872 0.816448872 Other Lands 0.83511074 0.83511074 Oregon State Lands 2.374312726 2.374312726 Washington State Lands 0.008356741 0.008356741 Oregon Offshore 1.306451388 1.306451388 Washington Offshore 5.056453277 5.056453277 50050161 Columbia Basin Continuous Gas 5005 Eastern Oregon-Washington "16,500.60" Federal Lands 24.44 24.44 Private Lands 0.29 0.29 Tribal Lands 0.12 0.12 Other Lands 70.04 70.04 Washington State Lands 5.11 5.11 50200161 "Deep (6,000 feet plus) Coal and Sandstone Gas" 5020 Uinta-Piceance 632.48 Federal Lands 88.53 85 Private Lands 9.33 12 Tribal Lands Other Lands Utah State Lands 2.14 3 50200181 Northern Coal Fairway/Drunkards Wash 5020 Uinta-Piceance 650.56 Federal Lands 35.34 10 Private Lands 32.23 35 Tribal Lands Other Lands 0.07 0 Utah State Lands 32.36 55 50200182 Central Coal Fairway/Buzzards Bench 5020 Uinta-Piceance "1,021.20" Federal Lands 56.66 10 Private Lands 22.17 10 Tribal Lands Other Lands 0.26 0 Utah State Lands 20.91 80 50200183 Southern Coal Fairway 5020 Uinta-Piceance 678.03 Federal Lands 84.91 90 Private Lands 14 8 Tribal Lands Other Lands 0.04 0 Utah State Lands 1.05 2 50200184 Joes Valley and Messina Grabens 5020 Uinta-Piceance 294.71 Federal Lands Private Lands Tribal Lands Other Lands 50200185 Southern Coal Outcrop 5020 Uinta-Piceance 144.00 Federal Lands 49.99 30 Private Lands 41.67 65 Tribal Lands Other Lands Utah State Lands 8.34 5 50200261 Uinta Basin Continuous Gas 5020 Uinta-Piceance "8,367.01" Federal Lands 38.98 50 Private Lands 26.88 15 Tribal Lands 23.98 30 Other Lands 1.03 0 Utah State Lands 9.13 5 50200262 Uinta Basin Transitional Gas 5020 Uinta-Piceance "5,189.87" Federal Lands 58.68 65 Private Lands 6.2 4 Tribal Lands 24 25 Other Lands 2.41 0 Utah State Lands 8.71 6 50200263 Piceance Basin Continuous Gas 5020 Uinta-Piceance "5,152.97" Federal Lands 55.95 40 Private Lands 41.93 58 Tribal Lands Other Lands Colorado State Lands 2.11 2 50200264 Piceance Basin Transitional Gas 5020 Uinta-Piceance "2,534.99" Federal Lands 62.86 40 Private Lands 34.99 58 Tribal Lands Other Lands Colorado State Lands 2.15 2 50200281 Uinta Basin Blackhawk Coalbed Gas 5020 Uinta-Piceance "7,073.15" Federal Lands 63.7 50 Private Lands 29.4 44 Tribal Lands 0.48 0 Other Lands 0.48 0 Utah State Lands 5.94 6 50200282 Mesaverde Group Coalbed Gas 5020 Uinta-Piceance "16,549.73" Federal Lands 69.49 35 Private Lands 23.67 60 Tribal Lands 0.91 1 Other Lands 0.08 0 Colorado State Lands 0.64 3 Utah State Lands 5.21 1 50200361 Piceance Basin Continuous Gas 5020 Uinta-Piceance "8,328.04" Federal Lands 60.65 60 Private Lands 37.67 38 Tribal Lands Other Lands Colorado State Lands 1.68 2 50200362 Uinta Basin Continuous Gas 5020 Uinta-Piceance "17,066.17" Federal Lands 50.03 65 Private Lands 17.88 15 Tribal Lands 19.84 10 Other Lands 1.31 0 Colorado State Lands 0.01 1 Utah State Lands 10.93 9 50200363 Uinta-Piceance Transitional and Migrated Gas 5020 Uinta-Piceance "10,278.39" Federal Lands 76.72 79 Private Lands 17.76 15 Tribal Lands 0.47 1 Other Lands 0.23 0 Colorado State Lands 0.02 0 Utah State Lands 4.8 5 50200561 Deep Uinta Overpressured Continuous Oil 5020 Uinta-Piceance "2,884.55" Federal Lands 10.5 4 Private Lands 55.85 60 Tribal Lands 28.41 35 Other Lands 1.15 0 Utah State Lands 4.09 1 50210161 Precambrian Chuar Self-Sourced Reservoirs 5021 Paradox Basin "21,692.93" Federal Lands Private Lands Tribal Lands Other Lands 50210261 Devonian Self-Sourced Reservoirs 5021 Paradox Basin "19,573.09" Federal Lands Private Lands Tribal Lands Other Lands 50210361 Cane Creek Shale Oil 5021 Paradox Basin "5,133.12" Federal Lands 73.5620484 71 Private Lands 18.32321091 21 Tribal Lands Other Lands 0.035188204 0 Colorado State Lands 0.077945883 1 Utah State Lands 8.001606609 7 50210362 Cane Creek Shale Gas 5021 Paradox Basin "11,405.47" Federal Lands 75.37067519 71 Private Lands 17.09703285 21 Tribal Lands Other Lands 0.007345244 0 Colorado State Lands 1.172343948 1 Utah State Lands 6.352602767 7 50210363 "Gothic, Chimney Rock, Hovenweep Shale Oil" 5021 Paradox Basin "42,776.38" Federal Lands 48.33319154 48 Private Lands 4.141454664 5 Tribal Lands 42.08699073 40 Other Lands 0.235609441 0 Colorado State Lands 0.001520426 0 New Mexico State Lands 0.424215856 0 Utah State Lands 4.777017343 7 50210364 "Gothic, Chimney Rock, Hovenweep Shale Gas" 5021 Paradox Basin "25,726.17" Federal Lands 62.68783665 63 Private Lands 25.42060854 26 Tribal Lands 5.3244541 5 Other Lands 0.004235098 0 Colorado State Lands 1.051710528 1 New Mexico State Lands 0.391588354 0 Utah State Lands 5.119566733 5 50210461 Manning Canyon 5021 Paradox Basin "12,477.35" Federal Lands Private Lands Tribal Lands Other Lands 50210581 Kaiparowits Plateau 5021 Paradox Basin "4,512.04" Federal Lands 90.07920011 90 Private Lands 1.744700515 2 Tribal Lands Other Lands 0.042635496 0 Utah State Lands 8.133463882 8 50210582 Henry Mountains 5021 Paradox Basin "1,536.48" Federal Lands Private Lands Tribal Lands Other Lands 50220161 Pictured Cliffs Continuous Gas 5022 San Juan Basin "17,216.13" Federal Lands 40.03766469 49 Private Lands 16.77690348 15 Tribal Lands 38.94990288 30 Other Lands Colorado State Lands 0.245682619 1 New Mexico State Lands 3.989846326 5 50220181 Fruitland Fairway Coalbed Gas 5022 San Juan Basin 920.01 Federal Lands 49.81540037 49.81540037 Private Lands 21.85815729 21.85815729 Tribal Lands 22.51543743 22.51543743 Other Lands New Mexico State Lands 5.811004914 5.811004914 50220182 Basin Fruitland Coalbed Gas 5022 San Juan Basin "16,296.12" Federal Lands 39.48565971 65 Private Lands 16.49003516 20 Tribal Lands 39.87772032 11 Other Lands Colorado State Lands 0.259552695 1 New Mexico State Lands 3.887032109 3 50220261 Lewis Continuous Gas 5022 San Juan Basin "19,443.05" Federal Lands 37.80884102 38 Private Lands 17.32795407 17 Tribal Lands 40.72540941 41 Other Lands Colorado State Lands 0.281715722 0 New Mexico State Lands 3.856079769 4 50220361 Mesaverde Central-Basin Continuous Gas 5022 San Juan Basin "9,501.72" Federal Lands 43.74568168 49 Private Lands 25.57737096 25 Tribal Lands 26.45812349 20 Other Lands Colorado State Lands 0.537002209 1 New Mexico State Lands 3.681821664 5 50220362 Mancos Sandstones Continuous Gas 5022 San Juan Basin "7,860.88" Federal Lands 47.22283481 63 Private Lands 24.45227908 16 Tribal Lands 23.48289747 15 Other Lands Colorado State Lands 0.542274149 0.5 New Mexico State Lands 4.299714486 5.5 50220363 Dakota-Greenhorn Continuous Gas 5022 San Juan Basin "10,171.07" Federal Lands 44.70551012 78 Private Lands 22.93107527 7 Tribal Lands 27.71809841 12 Other Lands Colorado State Lands 0.485372778 0 New Mexico State Lands 4.159943423 3 50220381 Menefee Coalbed Gas 5022 San Juan Basin "19,413.36" Federal Lands 21.60879808 30 Private Lands 12.8900836 10 Tribal Lands 61.2950975 55 Other Lands Colorado State Lands 0.306128379 0 New Mexico State Lands 3.899892443 5 50270361 Bakken Continuous Oil 5027 Montana Thrust Belt "5,955.86" Federal Lands Private Lands Tribal Lands Other Lands 50270561 Marias River Shale Continuous Oil 5027 Montana Thrust Belt "4,195.85" Federal Lands 1.412424856 1.412424856 Private Lands 58.66256921 58.66256921 Tribal Lands 31.0955396 31.0955396 Other Lands 1.178771715 1.178771715 Montana State Lands 7.650694612 7.650694612 50270681 Jurassic-Cretaceous Coalbed Methane 5027 Montana Thrust Belt "3,878.63" Federal Lands Private Lands Tribal Lands Other Lands 50280161 Judith River Formation 5028 North-Central Montana "162,393.47" Federal Lands 18.22089967 5 Private Lands 69.12446239 91 Tribal Lands 6.185004131 1 Other Lands Montana State Lands 6.469633807 3 50280162 Eagle Sandstone and Claggett Shale East 5028 North-Central Montana "117,314.11" Federal Lands 22.55780072 12 Private Lands 65.38971977 72 Tribal Lands 6.132075228 10 Other Lands Montana State Lands 5.92040429 6 50280163 Eagle Sandstone and Claggett Shale West 5028 North-Central Montana "34,722.90" Federal Lands 10.60153891 10 Private Lands 79.718385 79 Tribal Lands 1.643108084 1 Other Lands Montana State Lands 8.036968 10 50280164 Niobrara-Carlile 5028 North-Central Montana "242,439.45" Federal Lands 14.16250069 11 Private Lands 73.06065248 72 Tribal Lands 6.214410519 10 Other Lands Montana State Lands 6.562436307 7 50280165 Greenhorn-Lower Belle Fourche 5028 North-Central Montana "146,089.07" Federal Lands 1.499853101 8 Private Lands 77.02840942 80 Tribal Lands 14.34377478 4 Other Lands Montana State Lands 7.127962698 8 50280166 Greenhorn-Upper Belle Fourche 5028 North-Central Montana "127,606.33" Federal Lands 18.32026364 12 Private Lands 71.0045301 80 Tribal Lands 3.964636048 2 Other Lands Montana State Lands 6.710570211 6 50280167 Bowdoin Dome 5028 North-Central Montana "5,465.04" Federal Lands 30.54416792 31 Private Lands 62.80628144 62 Tribal Lands Other Lands Montana State Lands 6.649550649 7 50300261 Hanna Basin Continuous Gas 5030 "Hanna, Laramie, Shirley Basins" 982.37 Federal Lands Private Lands Tribal Lands Other Lands 50300361 Niobrara Continuous Oil 5030 "Hanna, Laramie, Shirley Basins" "3,403.48" Federal Lands 41.18 41 Private Lands 53.09 53 Tribal Lands Other Lands 1.47 2 Wyoming State Lands 4.26 4 50300461 Niobrara Biogenic Gas 5030 "Hanna, Laramie, Shirley Basins" "5,593.73" Federal Lands Private Lands Tribal Lands Other Lands 50300581 Medicine Bow-Ferris-Hanna Coalbed Gas 5030 "Hanna, Laramie, Shirley Basins" "1,976.02" Federal Lands Private Lands Tribal Lands Other Lands 50300582 Mesaverde Coalbed Gas 5030 "Hanna, Laramie, Shirley Basins" "3,160.20" Federal Lands Private Lands Tribal Lands Other Lands 50310161 Elm Coulee-Billings Nose 5031 Williston Basin "7,021.56" Federal Lands 28.59325335 28 Private Lands 65.42843347 66 Tribal Lands 0.126357969 0 Other Lands 0.569232889 0 Montana State Lands 2.753970242 3 North Dakota State Lands 2.528752079 3 50310162 Central Basin-Poplar Dome 5031 Williston Basin "12,733.77" Federal Lands 7.975423555 8 Private Lands 74.25428497 75 Tribal Lands 12.32458201 12 Other Lands 2.525964707 2 Montana State Lands 1.28446554 1 North Dakota State Lands 1.635279222 2 50310163 Nesson-Little Knife Structural 5031 Williston Basin "9,394.06" Federal Lands 5.449553924 5 Private Lands 78.83278138 79 Tribal Lands 9.573538291 10 Other Lands 3.22217553 3 North Dakota State Lands 2.921950879 3 50310164 Eastern Expulsion Threshold 5031 Williston Basin "7,853.80" Federal Lands 3.626071965 3 Private Lands 67.13358312 68 Tribal Lands 20.6079974 21 Other Lands 6.679362899 6 North Dakota State Lands 1.952984617 2 50310165 Northwest Expulsion Threshold 5031 Williston Basin "14,213.84" Federal Lands 1.186945355 1 Private Lands 79.5682113 80 Tribal Lands 11.6730261 12 Other Lands 0.635125389 0 Montana State Lands 6.212682551 6 North Dakota State Lands 0.724009307 1 50310261 Winnipeg-Icebox Continuous Gas 5031 Williston Basin Federal Lands Private Lands Tribal Lands Other Lands 50310861 Tyler Shale Continuous Oil 5031 Williston Basin "45,447.01" Federal Lands Private Lands Tribal Lands Other Lands 50311081 Fort Union Coalbed Gas 5031 Williston Basin "110,738.72" Federal Lands 7.981264082 7 Private Lands 81.37564093 83 Tribal Lands 4.712886196 4 Other Lands 1.622303123 1 Montana State Lands 2.52439137 3 North Dakota State Lands 1.561002074 2 South Dakota State Lands 0.222512227 0 50330181 Wasatch Formation 5033 Powder River Basin "19,476.90" Federal Lands 10.64469541 25 Private Lands 81.00098472 68 Tribal Lands 0.403378996 0 Other Lands 0.23360727 0 Wyoming State Lands 7.609325652 7 Montana State Lands 0.108007947 0 50330182 Upper Fort Union Formation 5033 Powder River Basin "43,142.94" Federal Lands 15.17581898 20 Private Lands 72.38334353 72 Tribal Lands 5.831594299 2 Other Lands 0.124467819 0 Wyoming State Lands 4.849563188 5 Montana State Lands 1.635212184 1 50330183 Lower Fort Union-Lance Formations 5033 Powder River Basin "65,218.76" Federal Lands 11.79843286 17 Private Lands 75.09448842 75 Tribal Lands 6.041400776 1 Other Lands 0.109057931 0 Wyoming State Lands 3.449876627 6 Montana State Lands 3.506743389 1 50330261 Mowry Continuous Oil 5033 Powder River Basin "25,624.96" Federal Lands 14.41435204 14.41435204 Private Lands 78.0434785 78.0434785 Tribal Lands Other Lands 0.0711683 0.0711683 Montana State Lands 0.012349847 0.012349847 Wyoming State Lands 7.458651317 7.458651317 50330361 Niobrara Continuous Oil 5033 Powder River Basin "18,641.96" Federal Lands 13.78760406 13.78760406 Private Lands 78.39865735 78.39865735 Tribal Lands Other Lands 0.083447294 0.083447294 Wyoming State Lands 7.730291301 7.730291301 50330461 Shallow Continuous Biogenic Gas 5033 Powder River Basin "79,793.99" Federal Lands 18.76752247 18.76752247 Private Lands 66.48235375 66.48235375 Tribal Lands 7.964077222 7.964077222 Other Lands 0.195099261 0.195099261 Montana State Lands 2.456330014 2.456330014 Wyoming State Lands 4.134617278 4.134617278 50340261 Muddy-Frontier Sandstone and Mowry Fractured Shale Continuous Gas 5034 Big Horn Basin "3,922.86" Federal Lands 75.09329629 75 Private Lands 19.94927643 20 Tribal Lands Other Lands Wyoming State Lands 4.957427273 5 50340262 Mowry Fractured Shale Continuous Oil 5034 Big Horn Basin "2,615.96" Federal Lands 74.43434712 75 Private Lands 20.76560949 21 Tribal Lands Other Lands 0.183376337 0 Wyoming State Lands 4.616667047 4 50340263 Cody Sandstone Continuous Gas 5034 Big Horn Basin "1,699.84" Federal Lands 81.21050977 88 Private Lands 13.6800355 8 Tribal Lands Other Lands Wyoming State Lands 5.109454728 4 50340264 Mesaverde Sandstone Continuous Gas 5034 Big Horn Basin 895.80 Federal Lands 78.83264188 92 Private Lands 15.64299668 0 Tribal Lands Other Lands Wyoming State Lands 5.524361439 8 50340281 Mesaverde-Meeteetse Formation Coalbed Gas 5034 Big Horn Basin "6,681.83" Federal Lands 58.62901775 90 Private Lands 35.10679776 7 Tribal Lands Other Lands 0.16093071 0 Wyoming State Lands 5.494520308 2 Montana State Lands 0.608733469 1 50340282 Fort Union Formation Coalbed Gas 5034 Big Horn Basin "9,789.45" Federal Lands 66.40910928 34 Private Lands 28.58491523 64 Tribal Lands Other Lands 0.082890474 0 Wyoming State Lands 4.281696113 1 Montana State Lands 0.641388903 1 50350261 Frontier-Muddy Continuous Gas 5035 Wind River Basin "7,083.60" Federal Lands 45.58 38.5 Private Lands 33.77 25 Tribal Lands 12.63 19.5 Other Lands 1.58 0 Wyoming State Lands 6.44 17 50350262 Cody Sandstones Continuous Gas 5035 Wind River Basin "4,589.52" Federal Lands 50.59 45 Private Lands 28.53 45 Tribal Lands 12.58 0 Other Lands 2.11 0 Wyoming State Lands 6.19 10 50350263 Cody Fractured Shale Continuous Oil 5035 Wind River Basin "3,178.17" Federal Lands Private Lands Tribal Lands Other Lands 50350264 Mesaverde-Meeteetse Sandstone Gas 5035 Wind River Basin "4,873.37" Federal Lands 49.02 49 Private Lands 30.8 31 Tribal Lands 11.93 12 Other Lands 2.02 2 6.23 6 50350265 Lance-Fort Union Sandstone Gas 5035 Wind River Basin "3,590.57" Federal Lands 56.29 61 Private Lands 24.48 21 Tribal Lands 10.21 8 Other Lands 2.21 2 6.81 8 50350281 Mesaverde Coalbed Gas 5035 Wind River Basin "2,624.51" Federal Lands 41.07 29 Private Lands 22.69 22.5 Tribal Lands 31.39 45 Other Lands 0.24 0.5 4.61 3 50350282 Meeteetse Coalbed Gas 5035 Wind River Basin "1,485.25" Federal Lands 40.9 41 Private Lands 27.74 28 Tribal Lands 25.42 25 Other Lands 0.3 0.3 5.64 5.7 50350283 Fort Union Coalbed Gas 5035 Wind River Basin "5,744.11" Federal Lands 35.4 43 Private Lands 35.57 34 Tribal Lands 23.36 17 Other Lands 0.46 0.5 Wyoming State Lands 5.21 5.5 50350361 Waltman Fractured Shale Continuous Oil 5035 Wind River Basin "3,009.88" Federal Lands Private Lands Tribal Lands Other Lands 50360281 Frontier-Adaville-Evanston Coalbed Gas 5036 Wyoming Thrust Belt "1,968.38" Federal Lands 48.48 49 Private Lands 47.81 43 Tribal Lands Other Lands 0.06 0 Wyoming State Lands 3.65 8 50370261 Mowry Continuous Gas 5037 Southwestern Wyoming "46,370.40" Federal Lands 67.54925785 61 Private Lands 28.35388875 35 Tribal Lands Other Lands 0.425775651 0 Colorado State Lands 0.968779401 0.1 Utah State Lands 0.094770676 0.1 Wyoming State Lands 2.607527679 3.8 50370361 Niobrara Continuous Oil 5037 Southwestern Wyoming "11,794.30" Federal Lands 40.67725571 33 Private Lands 52.65721833 60 Tribal Lands Other Lands Colorado State Lands 4.177948467 5 Wyoming State Lands 2.487577499 2 50370362 Niobrara Continuous Gas 5037 Southwestern Wyoming "9,923.23" Federal Lands Private Lands Tribal Lands Other Lands 50370461 Hilliard-Baxter-Mancos Continuous Gas 5037 Southwestern Wyoming "42,514.88" Federal Lands 66.42134245 66.42134245 Private Lands 29.23449766 29.23449766 Tribal Lands Other Lands 0.381600395 0.381600395 Colorado State Lands 1.347318573 1.347318573 Utah State Lands 0.166474158 0.166474158 Wyoming State Lands 2.448766759 2.448766759 50370561 Almond Continuous Gas 5037 Southwestern Wyoming "13,570.13" Federal Lands 72.12365769 78 Private Lands 24.52502848 20 Tribal Lands Other Lands Colorado State Lands 1.478847512 1 Wyoming State Lands 1.872466321 1 50370562 Rock Springs-Ericson Continuous Gas 5037 Southwestern Wyoming "17,648.69" Federal Lands 68.48665059 68.48665059 Private Lands 27.48951845 27.48951845 Tribal Lands Other Lands Colorado State Lands 2.08768531 2.08768531 Wyoming State Lands 1.936145647 1.936145647 50370581 Mesaverde Coalbed Gas 5037 Southwestern Wyoming "12,081.35" Federal Lands 48.10689623 48 Private Lands 46.49688561 48 Tribal Lands Other Lands 0.00719022 0 Colorado State Lands 2.663370991 2 Wyoming State Lands 2.725656956 2 50370661 Mesaverde-Lance-Fort Union Continuous Gas 5037 Southwestern Wyoming "14,089.25" Federal Lands 69.77594063 80 Private Lands 25.56408827 17 Tribal Lands Other Lands 1.038425962 0 Utah State Lands 0.258892969 0 Wyoming State Lands 3.36265217 3 50370681 Mesaverde Coalbed Gas 5037 Southwestern Wyoming "1,322.67" Federal Lands 62.90757628 80 Private Lands 30.61582507 15 Tribal Lands Other Lands 0.342281189 0 Colorado State Lands 0.367022701 0 Utah State Lands 0.448987779 0 Wyoming State Lands 5.318306987 5 50370682 Fort Union Coalbed Gas 5037 Southwestern Wyoming "4,794.28" Federal Lands 74.29244991 85 Private Lands 21.04532068 12 Tribal Lands Other Lands 1.176869724 0 Colorado State Lands 0.098471766 0 Utah State Lands 0.104554285 0 Wyoming State Lands 3.28233363 3 50370761 Lewis Continuous Gas 5037 Southwestern Wyoming "13,394.34" Federal Lands 72.39466206 72.39466206 Private Lands 24.25744284 24.25744284 Tribal Lands Other Lands Colorado State Lands 1.489114605 1.489114605 Wyoming State Lands 1.858780503 1.858780503 50370861 Lance-Fort Union Continuous Gas 5037 Southwestern Wyoming "9,890.05" Federal Lands 79.17768004 75 Private Lands 17.54945564 23 Tribal Lands Other Lands 0.000244781 0 Colorado State Lands 1.298413641 1 Wyoming State Lands 1.974205903 1 50370881 Lance Coalbed Gas 5037 Southwestern Wyoming "9,514.78" Federal Lands 55.51309351 60 Private Lands 39.6806739 38 Tribal Lands Other Lands 0.009114981 0 Colorado State Lands 2.691398865 1 Wyoming State Lands 2.105718744 1 50370882 Fort Union Coalbed Gas 5037 Southwestern Wyoming "12,332.21" Federal Lands 57.43168057 60 Private Lands 38.40615605 38 Tribal Lands Other Lands 0.007046268 0 Colorado State Lands 1.918365769 1 Wyoming State Lands 2.236751342 1 50370961 Wasatch-Green River Continuous Gas 5037 Southwestern Wyoming "13,552.81" Federal Lands Private Lands Tribal Lands Other Lands 50370981 Wasatch-Green River Coalbed Gas 5037 Southwestern Wyoming "2,689.54" Federal Lands 70.43993238 65 Private Lands 24.9749317 33 Tribal Lands Other Lands Colorado State Lands 0.936683585 1 Wyoming State Lands 3.64845233 1 50390261 Fractured Niobrara Limestone (Silo Field Area) 5039 Denver Basin "2,769.61" Federal Lands 0 0 Private Lands 92.8 92.8 Tribal Lands 0 0 Other Lands Wyoming State Lands 7.2 7.2 50390361 Fractured Pierre Shale 5039 Denver Basin "1,414.01" Federal Lands Private Lands Tribal Lands Other Lands (Private and State) 50390661 Niobrara-Codell (Wattenberg Area) 5039 Denver Basin "8,116.74" Federal Lands 8.4 4 Private Lands Tribal Lands 0 0 Other Lands (Private and State) 91.6 96 50390662 Dakota Group Basin-Center Gas 5039 Denver Basin "5,645.73" Federal Lands 1.2 0.5 Private Lands Tribal Lands 0 0 Other Lands (Private and State) 98.8 99.5 50390761 Niobrara Chalk 5039 Denver Basin "193,748.83" Federal Lands 2.2 1 Private Lands Tribal Lands 7.7 3.5 Other Lands (Private and State) 90.1 95.5 50410181 Raton Coalbed Gas 5041 Raton Basin-Sierra Grande Uplift "5,310.48" Federal Lands 7.81 5.4 Private Lands 89.24 90.4 Tribal Lands Other Lands Colorado State Lands 2.54 4 New Mexico State Lands 0.41 0.2 50410182 Vermejo Coalbed Gas 5041 Raton Basin-Sierra Grande Uplift "5,310.48" Federal Lands 7.81 5.4 Private Lands 89.24 90.4 Tribal Lands Other Lands Colorado State Lands 2.54 4 New Mexico State Lands 0.41 0.2 50440161 Delaware/Pecos Basins Woodford Continuous Shale Gas 5044 Permian Basin "23,771.25" Federal Lands 14.43477625 15 Private Lands 4.832979818 5 Tribal Lands Other Lands 75.48401154 75 New Mexico State Lands 5.2482324 5 50440162 Delaware/Pecos Basins Barnett Continuous Shale Gas 5044 Permian Basin "33,172.23" Federal Lands 21.29243151 20 Private Lands 6.532557614 8 Tribal Lands Other Lands 65.46638738 66 New Mexico State Lands 6.708623488 6 50440163 Midland Basin Woodford/Barnett Continuous Gas 5044 Permian Basin "7,759.96" Federal Lands Private Lands Tribal Lands Other Lands 100 100 50440164 Delaware Basin Wolfcamp Shale 5044 Permian Basin "7,846.40" Federal Lands Private Lands Tribal Lands Other Lands 50440165 Spraberry Continuous Oil 5044 Permian Basin "11,096.57" Federal Lands Private Lands Tribal Lands Other Lands 100 100 50450161 Greater Newark East Frac-Barrier Continuous Barnett Shale Gas 5045 Bend Arch-Fort Worth Basin "4,027.39" Federal Lands 7.27 7.27 Private Lands 92.73 92.73 Tribal Lands Other Lands 50450162 Extended Continuous Barnett Shale Gas 5045 Bend Arch-Fort Worth Basin "12,699.73" Federal Lands 1.19 1.19 Private Lands 98.81 98.81 Tribal Lands Other Lands 50450163 Hypothetical Basin-Arch Barnett Shale Oil 5045 Bend Arch-Fort Worth Basin "24,597.31" Federal Lands Private Lands Tribal Lands Other Lands 50450261 Hypothetical Continuous Fractured Barnett Shale Oil 5045 Bend Arch-Fort Worth Basin "3,273.34" Federal Lands Private Lands Tribal Lands Other Lands 50450481 Hypothetical Pennsylvanian-Lower Permian Coalbed Gas 5045 Bend Arch-Fort Worth Basin "12,882.25" Federal Lands Private Lands Tribal Lands Other Lands 50470281 Cretaceous Olmos Coalbed Gas 5047 Gulf Coast Cenozoic "4,222.60" Federal Lands Private Lands Tribal Lands Other Lands 100 100 50470381 Wilcox Coalbed Gas 5047 Gulf Coast Cenozoic "162,731.17" Federal Lands 7.441232163 7.441232163 Private Lands 71.34420735 71.34420735 Tribal Lands Other Lands 17.05803849 17.05803849 Texas State Lands 0.05912077 0.05912077 Louisiana State Lands 0.819052174 0.819052174 Mississippi State Lands 0.295390203 0.295390203 Arkansas State Lands 0.211702411 0.211702411 Louisiana Offshore 0.400705486 0.400705486 Mississippi Offshore 1.247691437 1.247691437 Alabama Offshore 1.122859514 1.122859514 50470481 Cretaceous-Tertiary Coalbed Gas 5047 Gulf Coast Cenozoic "473,437.58" Federal Lands Private Lands Tribal Lands Other Lands 50490161 Haynesville Sabine Platform Shale Gas 5049 Gulf Coast Mesozoic "23,281.88" Federal Lands 9.560263609 11 Private Lands 90.05338707 88.8 Tribal Lands Other Lands Louisiana State Lands 0.191511188 0.1 Texas State Lands 0.194838132 0.1 50490162 Haynesville Greater Gulf Basin Shale Gas 5049 Gulf Coast Mesozoic "253,904.41" Federal Lands Private Lands Tribal Lands Other Lands 50490163 Mid-Bossier Sabine Platform Shale Gas 5049 Gulf Coast Mesozoic "5,249.29" Federal Lands 14.32859185 14 Private Lands 85.3415738 85.7 Tribal Lands Other Lands Louisiana State Lands 0.329834354 0.3 50490164 Bossier Greater Gulf Basin Shale Gas 5049 Gulf Coast Mesozoic "312,942.88" Federal Lands Private Lands Tribal Lands Other Lands 50490165 Maverick Basin Pearsall Shale Gas 5049 Gulf Coast Mesozoic "42,582.46" Federal Lands 0.030517196 0.030517196 Private Lands 99.48855912 99.48855912 Tribal Lands Other Lands 0.003602774 0.003602774 Texas State Lands 0.477320909 0.477320909 50490166 Greater Gulf Basin Lower Cretaceous Shale Gas 5049 Gulf Coast Mesozoic "489,075.40" Federal Lands Private Lands Tribal Lands Other Lands 50490167 Eagle Ford Shale Gas 5049 Gulf Coast Mesozoic "193,982.44" Federal Lands 2.605970316 2.605970316 Private Lands 82.16306054 82.16306054 Tribal Lands Other Lands 0.002107048 0.002107048 Louisiana State Lands 0.996382051 0.996382051 Texas State Lands 0.250430356 0.250430356 Louisiana Offshore 6.082060424 6.082060424 Texas Offshore 7.899989263 7.899989263 50490168 Austin Pearsall-Giddings Area Oil 5049 Gulf Coast Mesozoic "30,642.74" Federal Lands 0.001328756 0.001328756 Private Lands 99.85076377 99.85076377 Tribal Lands Other Lands Texas State Lands 0.147907472 0.147907472 50490169 Smackover Downdip Continuous Gas 5049 Gulf Coast Mesozoic "191,302.16" Federal Lands Private Lands Tribal Lands Other Lands 50490170 Eagle Ford Shale Oil 5049 Gulf Coast Mesozoic "74,934.79" Federal Lands 6.24322075 6.24322075 Private Lands 89.70688152 89.70688152 Tribal Lands Other Lands Louisiana State Lands 1.099755452 1.099755452 Mississippi State Lands 0.000147192 0.000147192 Texas State Lands 0.137123342 0.137123342 Louisiana Offshore 1.210196401 1.210196401 Mississippi Offshore 1.60267534 1.60267534 50580161 Woodford Shale Gas 5058 Anadarko Basin "26,884.85" Federal Lands 0.978344214 1 Private Lands 97.94854672 98 Tribal Lands 0.036719033 0 Other Lands Oklahoma State Lands 1.036390037 1 50580162 Woodford Shale Oil 5058 Anadarko Basin "50,830.01" Federal Lands 1.874062038 2 Private Lands 96.36388896 97 Tribal Lands 0.042985228 0 Other Lands Kansas State Lands 0.000804509 0 Oklahoma State Lands 1.675274038 1 Texas State Lands 0.042985228 0 50580261 Thirteen Finger Limestone-Atoka Shale Gas 5058 Anadarko Basin "21,809.69" Federal Lands 1.043360603 1 Private Lands 97.50944992 98 Tribal Lands 0.045263623 0 Other Lands Oklahoma State Lands 1.300927552 1 Texas State Lands 0.100998306 0 50620161 Arkoma-Ouachita Foredeep Continuous 5062 Arkoma Basin "17,986.43" Federal Lands 19.57304078 20 Private Lands 78.54739413 79 Tribal Lands Other Lands 0.398740133 0 Arkansas State Lands 1.209061029 1 Oklahoma State Lands 0.271763927 0 50620261 Woodford Shale Gas 5062 Arkoma Basin "24,750.59" Federal Lands 10.6141059 10 Private Lands 88.47783389 90 Tribal Lands Other Lands 0.1871336 0 Arkansas State Lands 0.052477174 0 Oklahoma State Lands 0.668449438 0 50620262 Chattanooga Shale Gas 5062 Arkoma Basin "22,078.48" Federal Lands 9.789184782 10 Private Lands 88.45373452 89 Tribal Lands Other Lands Arkansas State Lands 1.750647663 1 Oklahoma State Lands 0.006433038 0 50620361 Fayetteville Shale Gas - Mississippi Embayment 5062 Arkoma Basin "4,773.35" Federal Lands Private Lands Tribal Lands Other Lands 50620362 Fayetteville Shale Gas - High Gamma-Ray Depocenter 5062 Arkoma Basin "10,581.56" Federal Lands 5.769099521 5 Private Lands 93.2603308 94 Tribal Lands Other Lands Arkansas State Lands 0.970569678 1 50620363 Fayetteville Shale Gas - Western Arkansas Basin Margin 5062 Arkoma Basin "13,927.31" Federal Lands 28.90892606 25 Private Lands 70.34628995 74 Tribal Lands Other Lands Arkansas State Lands 0.744783988 1 50620364 Caney Shale Gas 5062 Arkoma Basin "20,134.26" Federal Lands 6.553988615 5 Private Lands 92.3942626 94 Tribal Lands Other Lands 0.23003908 0 Oklahoma State Lands 0.821709701 1 50620481 Arkoma Coalbed Gas 5062 Arkoma Basin "18,139.62" Federal Lands 9.300792321 9 Private Lands 89.74708206 90 Tribal Lands Other Lands 0.161322764 0 Arkansas State Lands 0.063657173 0.3 Oklahoma State Lands 0.727145678 0.7 50630361 Devonian Antrim Continuous Oil 5063 Michigan Basin "146,433.58" Federal Lands Private Lands Tribal Lands Other Lands 50630362 Ordovician Collingwood Shale Gas 5063 Michigan Basin "95,676.21" Federal Lands Private Lands Tribal Lands Other Lands 50630561 Devonian Antrim Continuous Gas 5063 Michigan Basin "146,433.58" Federal Lands 6.068044437 2 Private Lands Tribal Lands 0.379402737 0 Other Lands 71.40989929 88 Offshore Michigan 22.14265353 10 50630681 Pennsylvanian Saginaw Coalbed Gas 5063 Michigan Basin 166.42 Federal Lands Private Lands Tribal Lands Other Lands 50640261 Ordovician Maquoketa Continuous 5064 Illinois Basin "257,429.47" Federal Lands Private Lands Tribal Lands Other Lands 50640361 Devonian to Mississippian New Albany Continuous Gas 5064 Illinois Basin "201,029.91" Federal Lands 4.850292044 5 Private Lands Tribal Lands Other Lands 95.14970796 95 50640481 Desmoinesian-Virgilian Coalbed Gas 5064 Illinois Basin "113,745.90" Federal Lands 1.456534882 1 Private Lands Tribal Lands Other Lands 98.54346512 99 50640561 Elvins Shale Gas 5064 Illinois Basin Federal Lands Private Lands Tribal Lands Other Lands 50650281 Warrior Basin 5065 Warrior Basin "18,470.92" Federal Lands 5.54 1 Private Lands Tribal Lands Other Lands 94.46 99 50670361 Clinton-Medina Basin Center 5067 Appalachian Basin "38,262.54" Federal Lands 5.97 6 Private Lands Tribal Lands 0 0 "Other Lands (includes private, state, etc)" 94.03 94 50670362 Clinton-Medina Transitional Northeast 5067 Appalachian Basin "17,777.25" Federal Lands 1.08 1 Private Lands Tribal Lands 0.79 0.8 "Other Lands (includes private, state, etc)" 98.13 98.2 50670363 Clinton-Medina Transitional 5067 Appalachian Basin "52,754.29" Federal Lands 4.43 3.54 Private Lands Tribal Lands 0.23 0 "Other Lands (includes private, state, etc)" 77.49 76.45 New York Offshore 2.8 3.14 Ohio Offshore 11.42 12.8 Pennsylvania Offshore 3.63 4.07 50670364 Tuscarora Basin Center 5067 Appalachian Basin "110,062.68" Federal Lands 9.11 9 Private Lands Tribal Lands "Other Lands (includes private, state, etc)" 90.89 91 50670461 Greater Big Sandy 5067 Appalachian Basin "27,630.59" Federal Lands 11.83 20 Private Lands Tribal Lands "Other Lands (includes private, state, etc)" 88.17 80 50670462 Northwestern Ohio Shale 5067 Appalachian Basin "118,727.48" Federal Lands 7.98 8 Private Lands Tribal Lands 0.09 0 "Other Lands (includes private, state, etc)" 82.99 90 New York Offshore 1.24 0.4 Ohio Offshore 6.09 1.1 Pennsylvania Offshore 1.61 0.5 50670463 Devonian Siltstone and Shale 5067 Appalachian Basin "59,348.24" Federal Lands 8.08 10 Private Lands Tribal Lands 0.19 0 "Other Lands (includes private, state, etc)" 91.73 90 50670464 Marcellus Shale 5067 Appalachian Basin "248,251.99" Federal Lands 7.39 7 Private Lands Tribal Lands 0.1 0 "Other Lands (includes private, state, etc)" 88.49 93 Ohio Offshore 2.72 0 New York Offshore 0.52 0 Pennsylvania Offshore 0.78 0 50670465 Catskill Sandstones and Siltstones 5067 Appalachian Basin "110,286.86" Federal Lands 6.34 7 Private Lands Tribal Lands 0.2 0 "Other Lands (includes private, state, etc)" 93.46 93 New York Offshore 0 0 50670466 Berea Sandstone 5067 Appalachian Basin "134,311.54" Federal Lands 5.95 10 Private Lands Tribal Lands "Other Lands (includes private, state, etc)" 94.05 90 Ohio Offshore 0 0 50670467 Foldbelt Marcellus 5067 Appalachian Basin "49,354.83" Federal Lands 20.23064123 20.23064123 Private Lands Tribal Lands Other Lands 79.76935877 79.76935877 50670468 Interior Marcellus 5067 Appalachian Basin "117,054.97" Federal Lands 7.784392124 7.784392124 Private Lands Tribal Lands Other Lands 92.21560788 92.21560788 50670469 Western Margin Marcellus 5067 Appalachian Basin "103,176.42" Federal Lands 4.25595759 4.25595759 Private Lands Tribal Lands Other Lands 90.64975892 90.64975892 New York Offshore 1.288292974 1.288292974 Ohio Offshore 1.957461014 1.957461014 Pennsylvania Offshore 1.848529498 1.848529498 50670581 Pocahontas Basin 5067 Appalachian Basin "10,024.46" Federal Lands 12.57 15 Private Lands Tribal Lands Other Lands 87.43 85 50670582 Eastern Dunkard Basin 5067 Appalachian Basin "32,051.90" Federal Lands 0.54 0 Private Lands Tribal Lands Other Lands 99.46 100 50670583 Western Dunkard Basin 5067 Appalachian Basin "19,377.65" Federal Lands Private Lands Tribal Lands Other Lands 50670584 Central Appalachian Shelf 5067 Appalachian Basin "34,955.99" Federal Lands Private Lands Tribal Lands Other Lands 50670585 Appalachian Anthracite and Semi-Anthracite 5067 Appalachian Basin "7,599.96" Federal Lands Private Lands Tribal Lands Other Lands 50670681 Cahaba Basin 5067 Appalachian Basin "1,507.07" Federal Lands Private Lands Tribal Lands Other Lands 50700161 Taylorsville Basin Continuous Gas 5070 Atlantic Coastal Plain "5,457.62" Federal Lands 6.006141616 6.006141616 Private Lands Tribal Lands Other Lands 82.86536516 82.86536516 Maryland Offshore 10.16815115 10.16815115 Virginia Offshore 0.960342081 0.960342081 50700261 Richmond Basin Continuous Gas 5070 Atlantic Coastal Plain 468.91 Federal Lands Private Lands Tribal Lands Other Lands 100 100 50700361 South Newark Basin Continuous Gas 5070 Atlantic Coastal Plain "3,712.20" Federal Lands 0.097456244 0.097456244 Private Lands Tribal Lands Other Lands 99.90254376 99.90254376 50700362 North Newark Basin Continuous Gas 5070 Atlantic Coastal Plain "2,554.37" Federal Lands Private Lands Tribal Lands Other Lands 50700461 Deep River Basin Continuous Gas 5070 Atlantic Coastal Plain "3,934.84" Federal Lands 6.680749336 6.680749336 Private Lands Tribal Lands Other Lands 93.31925066 93.31925066 50700561 South Georgia Basin Continuous Gas 5070 Atlantic Coastal Plain "64,453.60" Federal Lands Private Lands Tribal Lands Other Lands 50700562 North Florida Basin Continuous Gas 5070 Atlantic Coastal Plain "25,583.68" Federal Lands Private Lands Tribal Lands Other Lands 50700661 Hartford Basin Continuous Gas 5070 Atlantic Coastal Plain "3,623.69" Federal Lands Private Lands Tribal Lands Other Lands 50700761 Gettysburg Basin Continuous Gas 5070 Atlantic Coastal Plain "2,403.53" Federal Lands Private Lands Tribal Lands Other Lands 50700861 Delmarva Basin Continuous Gas 5070 Atlantic Coastal Plain "8,666.47" Federal Lands Private Lands Tribal Lands Other Lands 50700961 Culpepper Basin Continuous Gas 5070 Atlantic Coastal Plain "2,325.45" Federal Lands Private Lands Tribal Lands Other Lands 50701061 Dan River-Danville Basin Continuous Gas 5070 Atlantic Coastal Plain 865.91 Federal Lands Private Lands Tribal Lands Other Lands 100 100 50701161 Cumberland-Marlboro Basin Continuous Gas 5070 Atlantic Coastal Plain "2,975.56" Federal Lands Private Lands Tribal Lands Other Lands 50701261 Florence Basin Continuous Gas 5070 Atlantic Coastal Plain "1,369.41" Federal Lands Private Lands Tribal Lands Other Lands 53000281 Rio Escondido Basin Olmos Coalbed Gas 5300 Burgos Basin "4,504.49" Federal Lands Private Lands Tribal Lands Other Lands 100 100