1. Heigold, P. C. and S. T. Whitaker, 1989, A gravity survey at Marine Field: case study for Silurian
reef exploration: Illinois State Geological Survey, Illinois Petroleum 133, 19 p.
Heigold, P. C. and S. T. Whitaker, 1989, A gravity survey at Marine Field: case study for Silurian
reef exploration: Abstract and poster session, American Association of Petroleum Geologists
Bulletin, v. 73, n. 8, p. 1033.
Howard, R. H., and S. T. Whitaker, 1988, Hydrocarbon accumulation in paleovalley at
Mississippian-Pennsylvanian unconformity near Hardinville, Crawford County, Illinois: a model
paleogeomorphic trap: Illinois State Geological Survey, Illinois Petroleum 129, 29 p.
Howard, R. H., and S. T. Whitaker, 1990, Fluvial-estuarine valley fill at the Mississippian-
Pennsylvanian unconformity, Main Consolidated Field, Illinois in J. H. Barwis, J. G.
McPherson, and J.R.J. Studlick, [eds.], Petroleum Sandstone Reservoirs: Springer Verlag, p.
319-341.
Oltz, D. F., B. Seyler, H. E. Leetaru, and S. T. Whitaker, 1991, An integrated approach to reservoir
characterization in the Illinois Basin: American Association of Petroleum Geologists,
Proceedings of the First Annual Archie Conference, October 22-25, 1990, Houston Texas, p. 38-
60.
Rice, R. J., S. T. Whitaker, and R. D. Cole, 1993, The Mississippian Aux Vases sandstone reservoir
at Stewardson Field, Clinton County, Illinois: Illinois State Geological Survey, Illinois
Petroleum 138, 40 p.
Salmon, G. L., J. B. Risatti, and S. T. Whitaker, 1992, Geochemical characterization of dissimilar-
sourced oils from upper Knox and Middle Devonian rocks, Wayne County, Illinois: Abstract
and oral presentation, American Association of Petroleum Geologists Bulletin, v. 76, n. 8, p.
1284.
Whitaker, S. T., 1988, Frogtown North Field in Geology and Petroleum Production of the Illinois
Basin Volume 2: Indiana-Kentucky and Illinois Geological Societies Joint Publication.
Whitaker, S. T., 1988, Silurian pinnacle reef distribution in Illinois: a model for hydrocarbon
exploration: Illinois State Geological Survey Illinois Petroleum 130, 32 p.
Whitaker, S. T., 1988, Ramp-platform distribution of Silurian reefs in the Illinois Basin: Oil and Gas
Journal, v. 86, n. 18, p. 102-108.
Whitaker, S. T. and H. E. Leetaru, 1991, A comparison of reservoir heterogeneity and recovery
efficiency of two offshore bar complexes in an intracratonic basin: Abstract and oral
presentation, American Association of Petroleum Geologists Bulletin, v. 75, n. 3, p. 692.
Whitaker, S. T., and A. K. Finley, 1992, Reservoir heterogeneity and the potential for improved oil
recovery within the Cypress Formation at Bartelso Field, Clinton County, Illinois: Illinois State
Geological Survey, Illinois Petroleum 137, 42 p.

2. Whitaker, S. T. and D. F. Oltz, 1992, The potential for pre-Devonian hydrocarbon plays in Illinois:
Abstract and oral presentation, American Association of Petroleum Geologists Bulletin, v. 76, n.
5, p. 720.
Whitaker, S. T., 1992, Potential for sub-Devonian strata listed for Illinois, Kentucky, Indiana: Oil and
Gas Journal, December 14, v. 90, no. 50, p. 52-55.
Whitaker, S. T., R. D. Cole, and J. P. Grube, 1992, Hydrocarbon production from shallow marine
sandstones in the Mississippian Cypress Formation at Lawrence Field, Illinois: Abstract and
poster presentation, American Association of Petroleum Geologists Bulletin, v. 76, n. 8, p. 1289.
Whitaker, S. T., 1992, Sequence stratigraphy of the Lower Pope Group (Chesterian) in Illinois:
Abstract and poster presentation, American Association of Petroleum Geologists Bulletin, v. 76,
n. 8, p. 1289.
Whitaker, S. T., 1992, Characteristics of Aux Vases and Cypress reservoirs in Illinois: Abstract and
oral presentation, American Association of Petroleum Geologists Bulletin, v. 76, n. 8, p. 1289-
1290.