## Facts

- Coastal Petroleum Corporation acquired state-issued mineral lease interests originally granted in the 1940s covering, among other areas, Florida’s Gulf Coast offshore territorial waters.
- After disputes, Coastal and the State entered a 1976 settlement terminating Coastal’s offshore leasehold rights over a large area.
- The 1976 settlement granted Coastal a reserved royalty interest: a right to receive a percentage of royalties only if the State later leased the affected submerged lands for oil production.
- The settlement did not require the State to lease the lands; the State retained discretion whether to issue leases.
- In 1990, Florida enacted a statute prohibiting oil exploration and drilling in certain offshore areas that overlapped the area subject to Coastal’s reserved royalty interest.
- Coastal’s royalty interest was contingent on multiple events: the State choosing to lease, a lessee choosing to drill, and successful discovery and production of oil; trial evidence indicated no leasing or drilling efforts in the area and little expectation of productive reserves.

## Issues

1. Whether Coastal’s reserved royalty interest under the 1976 settlement was a cognizable property interest sufficient to support inverse condemnation.
2. Whether the 1990 statutory prohibition on offshore exploration and drilling effected a compensable taking of that interest under the Florida and U.S. Constitutions.

## Decision

- The appellate court affirmed judgment for the State.
- The court agreed that Coastal lacked a reasonable expectation the State would lease the lands and lacked any ability to compel leasing.
- Because the interest depended on discretionary future State leasing and uncertain future production, the drilling ban did not constitute a compensable taking of Coastal’s reserved interest.
- Having affirmed on that basis, the court did not address additional rationales offered below.

## Legal Principles

- Inverse condemnation requires governmental action that takes a cognizable property interest; purely contingent interests dependent on discretionary government action may be insufficient.
- For regulatory takings analysis, a claimant’s reasonable, investment-backed expectations are undermined where the claimant cannot require the government to take the predicate action needed for economic value (here, issuance of leases).
- A reserved royalty interest that yields value only upon discretionary future leasing and successful future extraction may be too speculative to qualify as property taken by a later regulation.
- The State may regulate sovereign submerged lands to protect public interests; such regulation does not create compensation liability where the claimant’s asserted loss rests on a non-enforceable expectation of future government leasing.

## Conclusion

The court held that Florida’s offshore drilling prohibition did not effect a compensable taking because Coastal’s reserved royalty interest was contingent on discretionary State leasing and uncertain future production, leaving Coastal without a reasonable, enforceable expectation of economic return.


Coastal Petroleum Corp. v. Chiles, 701 So. 2d 619 (Fla. 1st DCA 1997)