Summary

Robert H. Jackson Chapman v. Sheridan-Wyoming Coal Company…

What is the contract property right assumed? It is a right to nondevelopment of coal reserves in an indeterminate but substantial part of the public domain for benefit of its own lease. It is not a right necessary to the fullest physical development and enjoyment of all the lands plaintiff acquired for itself, and is one not normally appurtenant to real estate. The assumed covenant is purely negative in character and its whole burden is upon other premises owned by the United States in which the plaintiff has no other interest.
Source: Wikisource

Robert H. Jackson Chapman v. Sheridan-Wyoming Coal Company…

A contractual restriction which limits the use one may make of his own lands in favor of another and his lands is 'sometimes called a negative easement, which is the right in the owner of the dominant tenement to restrict the owner of the servient tenement in the exercise of general and natural rights of property.' It is an interest in lands which can pass only by deed and is in every legal sense an incumbrance.
Source: Wikisource

Robert H. Jackson Chapman v. Sheridan-Wyoming Coal Company…

If time has improved Big Horn's position in this respect, it must be noted that the delay in acting on its application has been largely due to plaintiff's protests and litigations.
We think a court of equity cannot term unreasonable the view of the Secretary that Big Horn's lease is not for 'an additional coal mine,' need for which must be proved. It does not use federal reserves to add a new competitor to the market. It uses them to keep one there. We think the distinction is substantial and the Secretary's interpretation of the regulation is permissible, even if not inevitable.
Source: Wikisource

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