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O'Connell, S. C.1982The Viking Formation (Lower Cretaceous) of southeastern SaskatchewanMaster's, University of Windsor, Windsor, Ontario, 191 p.
O'Connor, R, B., Jr.1995Bringing 3D seismic onshore; Lodgepole play highlights promise and challenges:Oil and Gas Journal, v. 93, n. 47, p. 50, 52-54, 56.Carboniferous; Cedar Creek Anticline; geophysical surveys; lineaments; lithofacies; Lodgepole Formation; Mississippian; Montana; Nesson Anticline; North Dakota; Paleozoic; petroleum; seismic surveys; thickness; three dimensional models; Waulsortian facies; Williston Basin;
O'Malley, F. Ward1953Williston Basin-exploration frontier:Mines Mag., v. 43, no. 10, p. 38-48, 154-155, illus.The basin is defined and outlined. The stratigraphy, structural and sedimentary history, drilling, testing, logging, completion and economic problems are discussed as well as the different methods of exploratory approach. A subsurface evaluation of the basin is presented.
Oakland, L., and Pearson, D.A.1995A Tyrannosaurus rex from the Hell Creek Formation (Cretaceous:Maastrichtian), Bowman County, North Dakota and observations on its depositional setting:Proceedings of the North Dakota Academy of Science, v. 49, p. 62.North Dakota; Symposium; Tyrannosaurus rex; fossils; vertebrates; Cretaceous; Hell Creek Formation;
Obelenus, T. J.1985Depositional environments and diagenesis of carbonates and associated evaporites, Frobisher-Alida Interval, Madison Group (Mississippian), Williston Basin, northwestern North DakotaMaster's, University of North Dakota, Grand Forks, ND, 313 p.
Obelenus, T. J.1984Nature and origin of ooids and pisolites of the Mission Canyon Formation (Mississippian), Williston Basin, North DakotaSaskatchewan Geological Society Special Publication, V. 7, p. 17
Obelenus, T. J.1982Depositional environments and diagenesis of Frobisher-Alida Interval, Madison Group (Mississippian, North Dakota Williston Basin)American Association of Petroleum Geologists Bulletin, V. 66, p. 614
Obermajer, M., Osadetz, K.G., and Fowler, M.G.2002Gasoline range and saturate fraction gas chromatograms of 80 crude oils from the Ordovician reservoirs in the Williston Basin:Geological Survey of Canada Open-File Report 4368, 1 disk.Canada; chemical composition; crude oil; gas chromatograms; gasoline; Montana; natural gas; North Dakota; Ordovician; Paleozoic; petroleum; petroleum products; reservoir rocks; Saskatchewan; Williston Basin;
Obermajer, M., Osadetz, K.G., Fowler, M.G., and Snowdon, L.R.2000Light hydrocarbon (gasoline range) parameter refinement of biomarker-based oil-oil correlation studies; An example from Williston Basin:Organic Geochemistry, v. 31, n. 10, p. 959-976.Bakken Formation; biomarkers; Canada; Canadian Shield; Carboniferous; case studies; correlation; crude oil; Devonian; gas chromatograms; gasoline; geochemistry; Great Plains; hydrocarbons; Madison Group; Mississippian; Montana; North Dakota; Northern Great Plains; organic compounds; Paleozoic; petroleum; reservoir rocks; Saskatchewan; South Dakota; Williston Basin; Winnipegosis Formation;
Ogaard, D.H.1999Flood damage reduction - tributary storage:Proceedings of the North Dakota Academy of Science, v.53, p.46.floods; topography; watershed; tributaries; North Dakota;
Oglesby, C. A.1988Deposition and dissolution of the Middle Devonian Prairie Formation, Williston Basin, North Dakota and MontanaMaster's, Colorado School of Mines, Golden, CO, 79 p.
Oglesby, C. A.1987Distinguishing between depositional and dissolution thinning; Devonian Prairie Formation, Williston Basin, North Americain, Carlson, C. G., and Christopher, J. E., eds., Fifth International Williston Basin Symposium, North Dakota Geological Society, Grand Forks, ND, pp. 47-52
Oglesby, C. A., and Fischer, D. W.1991Sedimentology and petroleum geology of a Triassic Spearfish Sandstone reservoir, South Starbuck Field, Bottineau County, North Dakotain, Christopher, J. E., and Haidl, F. M., eds., Sixth International Williston Basin Symposium, Saskatchewan Geological Society, Regina, Saskatchewan, pp. 161-164
Oihus, C. A.1983A history of coal mining in North Dakota, 1873-1982North Dakota Geological Survey Educational Series No. 15, 100 p.
Oil & Gas Journal1970Williston has new oil production:v. 68, no. 23, p. 163.Red River Formation; Ordovician; oil; production; Richland County; petroleum
Oil & Gas Journal1978Little Knife; new field in Williston Basin:v. 76, no. 28, p. 178-179, illus.petroleum; Mission Canyon Limestone; exploration; production; Mississippian; reservoir rocks
Oil & Gas Journal1962Haas and North Haas fields, Bottineau County, N.D.:v. 60 (January 8), p. 105.Madison Formation; production; petroleum; oil field characteristics
Oil & Gas Journal1964Williston draws drillers' interest:v. 62 (March 23), p. 136.Renville County; petroleum; production; Madison Formation
Oil & Gas Journal1966Big wildcat project is planned for Montana, North Dakota:v. 64 (July 18), p. 49, illus.petroleum; exploration; Williston Basin
Oil & Gas Journal1957Four deep Williston tests hit:v. 55 (December 23), p. 36.Beaver Lodge Field; Silurian; Devonian; petroleum; production; exploration
Oil & Gas Journal1959Wildcat hits in Badlands of North Dakota:v. 57, no. 50, p. 94, illus.McKenzie County; Mississippian; production; petroleum; Mission Canyon Formation
Oil and Gas Journal1953Williston-newest producing basin of the Rockies:Oil and Gas Jour., v. 52, no. 17, p. 72-80, illus.The general geology, stratigraphy, and history of the basin are reviewed. Reports of exploration activity, drilling, and production are included in the descriptions of the various oil fields.
Oil and Gas Journal1953North Dakota outlook:Oil and Gas Jour.,v. 51, no. 36,p. 65, illus.The development record for 1952 is presented and some predictions for development in 1953 in the state are set forth.
Oil and Gas Journal1952Beaver Lodge growing:Oil and Gas Jour., v. 51, no. 3, p. 66, illus.A brief report on the development of the field in the Williston basin is presented.
Oil and Gas Journal1952aAmerada hits again:Oil and Gas Jour., v. 51, no.27, p. 85.The opening of Amerada Petroleum Corporation's 5th new oil pool in North Dakota is reported. The pool is on the Nesson anticline.
Oil and Gas Journal1951Williston Basin test:Oil and Gas Jour., v. 50, no. 2, p. 67.A test on the Baker-Glendive anticline is announced by the Shell Oil Company. The geology and oil and gas production of the anticline are discussed.
Okland, Howard D.1978A geomagnetic survey of Pembina, Grand Forks, and eastern Walsh Counties, North Dakota:University of North Dakota M.S. thesis, 51 p., illus.geomagnetic maps; magnetic anomalies; methods; computer methods; magnetic data
Okland, Linda E.1978Paleoecology of a Late Quaternary biota at the McClusky Canal site, central North Dakota:University of North Dakota M.A. thesis, 97 p., illus.Missouri Coteau; Quaternary; paleontology; radiocarbon dates; sedimentation; paleobotany; palynology; climatic change; slough; Sheridan County; stratigraphy; mollusks; plants; paleoecology; methods
Olson, C.F., Curry, W.H., III, Norwood, E.E., and Slocum, R.C.1968Developments in Northern Rockies in 1967:American Association of Petroleum Geologists Bulletin, v. 52, no. 6, p. 1033-1041, illus.North Dakota; exploration; development; petroleum; production
Oltmans, J. R. II1995Prospect definition using cost-effective 2-D swath in Rocky Mountain stratigraphic traps,in, Ray, R. R., Sonnenberg, S., Wilson, M., Zinke, S., Longman, M., Holm, M., and Crouch, M., eds., High-definition seismic; 2-D, 2-D swath, and 3-D case histories: Denver, CO, Rocky Mountain Association of Geologists, p. 87-100.algal mounds; algal structures; biogenic structures; carbonate rocks; case studies; clastic rocks; cost; data acquisition; data processing; Devonian; geophysical surveys; Ismay Zone; Minnelusa Formation; North Dakota; Paleozoic; Paradox Basin; petroleum; Powder River basin; Rocky Mountains; sandstone; sedimentary rocks; sedimentary structures; seismic surveys; stratigraphic traps; three dimensional methods; traps; two dimensional models; Utah; Williston Basin; Winnipegosis Formation; Wyoming;
Omodt, H.W., Johnsgard, G.A., Patterson, D.D., and Olson, O.P.1968The major soils of North Dakota:North Dakota State University, Agricultural Experiment Station Bulletin 472, 60 p., illus. including a state soil map.soils; geology; climate; classification of soils; soil characteristics; soil description; soil map
Omodt, Hollis W., Shroer, Fred W., and Redmond, C.R.1966Soil survey of tri-county area, North Dakota:U.S. Department of Agriculture, Soil Conservation Service, 94 p., illus. including soil maps, scale 1:20,000.soils; distribution; morphology; genesis; classification; utilization; management; airphotos; soil maps; Cass County; Ransom County; Richland County; Lake Agassiz Beaches
Opdahl, D. D., Terry, W. J., and Prochnow, N. D.1990Soil survey of Barnes County, North DakotaU. S. Department of Agriculture, Soil Conservation Service, Washington, DC, 203 p.
Opdahl, D.D., Freymiller, W.F., Haugan (sic Haugen), L.P., Kukowski, R.J., Baker, B.C., and Stevens, J.G.1975Soil survey of Bowman County, North Dakota:U.S. Department of Agriculture, Soil Conservation Service (SuDoc no. A57.38: B68), 154 p., illus. including soil maps, scale 1:20,000.soils; distribution; morphology; genesis; classification; utilization; management; airphotos; soil maps
Opp, Albert G.1955A magnetometer survey of the Keene Dome, McKenzie County, North Dakota:N. Dak. Geol. Survey Rept. Inv. no. 19, 1 sheet, illus.The results of a study of the deformation of the sediments of the dome by means of a magnetometer survey are discussed with respect to the geologic knowledge of the area. The illustrations include a vertical magnetic intensity map and a surface structure map of the dome.
Orth, D. J.1990The National Gazetteer of the United States of America: North DakotaUS Geological Survey Professional Paper P 1200-ND, pp. ix-xx
Osadetz, K. G., and Rygh, M. E.1995Oil families and their sources in Williston Basin (abstract),in Hunter, L. D. V., and Schalla, R. A., eds., Seventh International Williston Basin Symposium: Billings, MT, Montana Geological Society, p. 451-452. Williston Basin; oil families; source rocks; North Dakota Geological Society; Saskatchewan Geological Society;
Osterkamp, W. R., and Hedman, E. R.1982Perennial-streamflow characteristics related to channel geometry and sediment in Missouri River BasinUS Geological Survey Professional Paper P 1242, 37 p.
Osterwald, Frank W., and Dean, B. G.1957Preliminary tectonic map of western North Dakota, showing the distribution of uranium deposits:U. S. Geol. Survey Mineral Inv. Map MF-125, scale 1:500,000.An index map of western North Dakota, showing sources of data is included.
Oswalt, J. M.1981Evaporites as seals for hydrocarbon accumulations in carbonate provinces of North America; case historiesAmerican Association of Petroleum Geologists Bulletin, V. 65, pp. 967-968
Owen, D. E.1993Preliminary geologic radon potential assessment of Montana,in, Schumann, R. R., ed., Geologic radon potential of EPA Region 8; Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming: U. S. Geological Survey Open File Report, p. 69-90.bedrock; geologic hazards; Great Plains; isotopes; Montana; noble gases; pollution; radioactive isotopes; radon; Rocky Mountains; soils;
Owen, David Dale1852Report of a geological survey of Wisconsin, Iowa, and Minnesota; and incidentally of a portion of Nebraska Territory:Philadelphia, Lippincott, Grambo and Co., for the U.S. General Land Office, 638 p., illus.geology; floods; Red River Valley; North Dakota; South Dakota; Minnesota; Wisconsin; paleontology
Owen, Hal1979Coal geology of the New England-Mott area; Billings, Stark, Slope, Hettinger, and Adams counties, North Dakota:U.S. Geological Survey Open-File Report 79-564, 77 p., illus.Fort Union formation; stratigraphy; lignite; coal bed names; analyses; drill-hole data; structure contour maps; coal correlation sections; isopach maps
Owen, Hal E.1977Preliminary report on the lignite resources of the Niobe area, Burke and Ward Counties, North Dakota:U.S. Geological Survey Open-File Report 77-379, 10 p., illus.Fort Union Formation; Sentinel Butte Member; Paleocene; lignite; production; physiography; structure
Owen, Howard Q.1960Glaciers are still making trouble for highway engineers:Better Roads, v. 30 (January 1960), p. 27-28, 36, 38, illus.Red River Valley; glacial sediments; Lake Agassiz deposits; engineering geology; bridges