The US Supreme Court was found by the Alabama Supreme Court to have acted unlawfully.
From the AL court ruling, 4th March:
Justices Antonin Scalia, Clarence Thomas, and Samuel Alito, that the majority opinion in Obergefell has no basis in the law, history, or tradition of this country. Obergefell is an unconstitutional exercise of judicial authority that usurps the legislative prerogative of the states to regulate their own domestic policy. Additionally, Obergefell seriously jeopardizes the religious liberty guaranteed by the First Amendment to the United States Constitution.
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The amendment process requires the ratification of three-quarters of the states, not a mere 5 out of 9 Justices on the Supreme Court.
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Although the Court could suggest that the Constitution would benefit from a particular amendment, the Court does not possess the authority to insert the amendment into the Constitution by the vehicle of a Court opinion and then to demand compliance with it.
By dismissing the petitions, Alabama has effectively accepted Obergefell as valid case law in Alabama. Moore was one of the minority justices.
http://www.reuters.com/article/us-alabama-gaymarriage-idUSKCN0W62PT