Background
The case involves a dispute over a conservation easement on a Wyoming ranch. The property owner, Gary Binning, sought to build a guest house or wellness center on land subject to an easement held by The Nature Conservancy. Previous litigation in Wyoming state courts had already determined that the easement permitted only one single-family residential structure and did not allow for guest houses. Binning later alleged that a TNC director made an oral promise during a lunch meeting allowing him to build a structure that accommodated overnight guests, provided it was not called a guest house and had no kitchen. Binning sued in federal court claiming promissory estoppel, but the district court granted summary judgment for TNC.
The court’s reasoning
The Tenth Circuit reviewed the claim of promissory estoppel under Wyoming law, which requires a clear and definite promise, reasonable reliance, and the necessity of enforcement to avoid injustice. The court found that the alleged lunchtime statements were merely expressions of hope and conditional representations rather than clear promises. The court noted that the parties had a history of litigation and that Binning had explicitly requested written confirmation, which was never provided. Furthermore, the court found that reliance on the oral statements was unreasonable given Binning’s sophistication, the existing Wyoming Supreme Court ruling, and the lack of written memorialization. Since the first two elements were not met, the court did not need to reach the third element regarding injustice.
Binning has failed to establish that the three elements of promissory estoppel under Wyoming law could weigh in his favor.
Opinion at 2
What it means going forward
The decision reinforces the strict requirements for promissory estoppel in Wyoming, particularly the necessity of clear and definite promises and the unreasonableness of relying on oral statements when written confirmation is expected or when prior litigation has resolved the underlying legal rights.
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