Changes

| Cook Inlet, Alaska || Low || pre-Tertiary || ? || Popov et al.<ref name=Popovetal_2001 />

| Cook Inlet, Alaska || Low || pre-Tertiary || ? || Popov et al.<ref name=Popovetal_2001 />

|-

|-

| Norton Basin, Alaska || High || [[Eocene]]/[[Paleocene]] || Direct || Smith<ref name=Smith_1994>Smith, J. T., 1994, [http://archives.datapages.com/data/specpubs/methodo2/data/a077/a077/0001/0000/0025.htm Petroleum system logic as an exploration tool in a frontier setting], ''in'' L. B. Magoon and W. G. Dow, eds., The petroleum system-from source to trap: AAPG Memoir 60, p. 25-49.</ref>

| Norton Basin, Alaska || High || [[Eocene]]/[[Paleocene]] || Direct || Smith<ref name=Smith_1994>Smith, J. T., 1994, [http://archives.datapages.com/data/specpubs/methodo2/data/a077/a077/0001/0000/0025.htm Petroleum system logic as an exploration tool in a frontier setting], ''in'' L. B. Magoon and W. G. Dow, eds., The petroleum system-from source to trap: [http://store.aapg.org/detail.aspx?id=1022 AAPG Memoir 60], p. 25-49.</ref>

|-

|-

| Alberta basin, Canada || High || Cretaceous || Direct || Masters<ref name=Masters_1979>Masters, J. A., 1979, [http://archives.datapages.com/data/bulletns/1977-79/data/pg/0063/0002/0150/0152.htm Deep basin gas trap, western Canada]: AAPG Bulletin, v. 63, p. 152-181.</ref> <ref name=Masters_1984>Masters, J. A., ed., 1984, [http://archives.datapages.com/data/alt-browse/aapg-special-volumes/m38.htm Elmworth-case study of a deep basin gas field]: AAPG Memoir 38, 316 p.</ref>

| Alberta basin, Canada || High || Cretaceous || Direct || Masters<ref name=Masters_1979>Masters, J. A., 1979, [http://archives.datapages.com/data/bulletns/1977-79/data/pg/0063/0002/0150/0152.htm Deep basin gas trap, western Canada]: AAPG Bulletin, v. 63, p. 152-181.</ref> <ref name=Masters_1984>Masters, J. A., ed., 1984, [http://archives.datapages.com/data/alt-browse/aapg-special-volumes/m38.htm Elmworth-case study of a deep basin gas field]: AAPG Memoir 38, 316 p.</ref>