 Greka's Nov 30, 2005, bankruptcy filing, under the name Saba Enterprises and including Greka, Horizontal Ventures and Petro Union, listed debts of up to $50 million but assets of less than $50,000, and Greka listed unsecured creditors including Chevron's UNOCAL arm.As all petroleum extracted from California state lands is subject to a royalty, Greka has paid the state about $143,000 for oil and gas pumped from Rincon Island during the first half of 2007.Rincon Island's production history is controversial, due to spills and safety issues.