The Texas Attorney General has issued an opinion supporting officials who refuse to grant marriage licences to same-sex couples in defiance of the SCOTUS ruling. See here.
Having been an independent republic prior to entering the USA, Texas flies its state flag at the same hight as the US national flag. Its current (1876) constitution, which vests sovereignty in the population, reserves to them the right to alter, reform or abolish their government in such manner as they may think expedient. When asked about secession in 2009 the then governor of Texas replied “Texas is a unique place. When we came in the union in 1845, one of the issues was that we would be able to leave if we decided to do that. You know, my hope is that America and Washington in particular pays attention. We’ve got a great union. There is absolutely no reason to dissolve it. But if Washington continues to thumb their nose at the American people, you know, who knows what may come out of that?”
Texas is the only US state that maintains its own gold reserves (5,600 gold bars worth around $650 million kept in a vault in Manhattan). Texas has now decreed that all its gold must be brought inside its own borders. See here and here.
CONSTITUTION OF THE STATE OF TEXAS.
Humbly invoking the blessing of Almighty God, the people of the State of Texas do ordain and establish this Constitution.
That the general, great and essential principles of liberty and free government may be recognized and established, we declare:
§1. Texas is a free and independent State, subject only to the Constitution of the United States; and the maintenance of our free institutions and the perpetuity of the Union depend upon the preservation of the right of local self-government unimpaired to all the States.
2. All political power is inherent in the people and all free governments are founded on their authority, and instituted for their benefit. The faith of the people of Texas stands pledged to the preservation of a republican form of government, and, subject to this limitation only, they have at all times the inalienable right to alter, reform or abolish their government in such manner as they may think expedient.
According to wikipedia, as of 6th July 2015, the following Texas counties are not issuing marriage licenses to same-sex couples: Anderson, Austin, Bailey, Baylor, Bowie, Brown, Burleson, Calhoun, Cass, Castro, Cherokee, Cochran, Collingsworth, Coke, Coleman, Comance, Concho, Cooke, Cottle, Crane, Crockett, Dallam, Dawson, Delta, Dimmit, Fannin, Fayette, Floyd, Freestone, Gaines, Garza, Gillespie, Glassock, Goliad, Gray, Grimes, Hamilton, Hardin, Henderson, Hill, Hockley, Howard, Hutchinson, Irion, Jack, Jackson, Jasper, Jeff Davis, Jim Wells, Karnes, Kendall, Kenedy, Kent, Kerr, Kimble, King, LaSalle, Leon, Lipscomb, Live Oak, Llano, Lubbock, Marion, Mason, Matagorda, Maverick, McCullough, Medina, Mills, Moore, Ochiltree, Palo Pinto, Parker, Pecos, Rains, Randall, Real, Refugio, Roberts, Runnels, San Jacinto, San Patricio, Shelby, Sherman, Somervell, Taylor, Terrell, Terry, Throckmorton, Tyler, Van Zandt, Walker, Waller, Washington, Wharton, Wilbarger, Wise, Zapata, and Zavala.