Abstract
Petroleum occurs in the Comanche section of middle Albian (Trinity) age in the Bend area of southern Florida. Commercial amounts of oil are found in a 430-foot cyclothem which contains bituminous limestones, porous dolomites, coquinal limestones, dense limestones, white anhydrites, and calcareous shales. These varied and thin-bedded rocks are associated with the Sunniland pay zone at depths near 11,000 feet. In this cyclic sequence petroliferous limestones are found near reservoir limestones and both are confined by dense anhydrite, shale, or limestone. In the Bend area depositional structures plunge very gently northwest and are tilted northeast which is the reverse of regional dip.
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