ABSTRACT Florida oil production began to decline in 1979 and continued to do so during 1988 and 1989. Jay field, as the leading producing field for Florida, controls the rate of decline. Onshore exploratory drilling during 1988 and 1989 resulted in the discovery of McDavid field in Escambia County and Coldwater Creek field in Santa Rosa County. Offshore exploratory drilling included six wells which were completed in federal waters off Florida during 1988 and 1989; one of these was the second Norphlet discovery in the Destin Dome area and was classified by the federal government as a producible field. Geophysical exploration during 1988 and 1989 concentrated in the Florida panhandle and the south Florida peninsula. The panhandle exploration included the known oil-producing Santa Rosa and Escambia Counties, an area offshore from Santa Rosa and Escambia Counties, and the Apalachicola Embayment area. South Florida seismic activity was east of the known Sunniland-producing trend in Broward, Dade, Hendry and Palm Beach Counties. In addition to 1988 and 1989 data, a summary of offshore exploratory drilling in state waters, from 1947 through 1983, is included in this report. This information may be useful in evaluating future offshore and onshore development and exploration. Of similar value are descriptions of each of Florida's 22 oil fields. Descriptions include discovery data, geologic information, and production totals. ACKNOWLEDGEMENTS Several Florida Geological Survey staff members contributed to this report. Charles Tootle compiled oil field data and production statistics. The Oil and Gas Section maintains files on permitted exploratory and development drilling. Joan Ragland and Charles Tootle provided comments and assistance in using these files. Joan Ragland tabulated and assisted with the interpretation of the geophysical exploration permit data. Joel Duncan assisted with the interpretation of geophysical logs from the recently- discovered McDavid field. Jim Jones and Ted Kiper drafted and photographed the figures. Walt Schmidt, Tom Scott, Ed Lane, Joan Ragland, and Joel Duncan edited the manuscript and suggested improvements.