Greenwire: The Interior Department likely will appeal a court ruling that could allow oil and gas producers in the Gulf of Mexico to jointly forgo billions of dollars in royalty payments, Interior Secretary Ken Salazar said today. The department also has begun a comprehensive review of royalty collection, renewable energy and transmission siting issues, Salazar told reporters. Asked about an approaching deadline on whether to appeal the offshore oil and gas case, Salazar said, “There is a …