Davis v. Wells was a United States Supreme Court case that addressed the issue of whether a state court could enforce a contract that was made in another state. The case involved two parties, Davis and Wells, who had entered into a contract in the state of New York. Wells had agreed to pay Davis a certain amount of money in exchange for a certain amount of goods. Wells failed to pay the money as agreed, and Davis sued in a state court in New York. Wells argued that the contract was not enforceable in the state court because it had been made in another state. The Supreme Court held that the state court had the authority to enforce the contract. The Court reasoned that the contract was valid and enforceable in the state of New York, and that the state court had the power to enforce it. The Court also noted that the contract was not contrary to the public policy of the state of New York, and that the state court had the authority to enforce it. The Court's decision in Davis v. Wells established that a state court has the authority to enforce a contract that was made in another state, provided that the contract is valid and enforceable in the state in which it was made. This decision has been cited in numerous cases since then, and it has been used to support the enforcement of contracts in state courts.

Justice Field delivered the dissenting opinion in Davis v. Wells, arguing that the Court should not have granted a writ of error to review the decision of the Supreme Court of California. He argued that there was no federal question involved and thus it did not fall within this court's jurisdiction. Furthermore, he noted that even if there had been a federal question present, it would still be inappropriate for this court to grant certiorari because such questions were already settled by state law and could only be reviewed on appeal or writ of error from final judgments rendered by state courts. The Justice concluded his dissent by noting that granting certiorari in cases like these "would lead to endless confusion."