Siljan Ring proved inconclusive. Drilling for natural gas was resumed in the late 2000s and continues as of mid-2012. The scientific premise for prospecting of this sort is based on the work of physicist Vladimir Kutcherov, who is cooperating with Igrene, the company financing the drilling operations. Siljan Ring The Siljan Ring () is a prehistoric impact crater in Dalarna, central Sweden. It is one of the 15 largest known impact craters on Earth and the largest in Europe, with a diameter of about . The impact that created the Siljan Ring occurred when a meteorite collided with the Earth's surface during
Francisco Blake Mora Francisco Blake Mora José Francisco Blake Mora (; 22 May 1966 – 11 November 2011) was a Mexican lawyer and politician who served as the Secretary of the Interior in the cabinet of Felipe Calderón from 2010 to 2011. He was Mexico's top cabinet secretary and key figure in the battle against the drug cartels and corruption in the country. Blake Mora was also an important official in the dialogues of Felipe Calderón's drug policy, where he constantly traveled to meet with governors and victims of the drug war. Blake Mora was born in a working-class family in Tijuana, Baja