By Sabrina Valle (Reuters) – It is the end of an era for Big Oil in California, as the most populous U.S. state divorces itself from fossil fuels in its fight against climate change. California’s oil output a century ago amounted to it being the fourth-largest crude producer in the U.S., and spawned hundreds of oil drillers, including some of the largest still in existence. Oil led to its car culture of iconic highways, drive-in theaters, banks and restaurants that endures today. On Friday, however, the marriage will officially end. The two largest U.S. oil producers, Exxon Mobil and Chevron, …