Id al-Shargi North Dome (ISND), first discovered by Shell in 1960 and now operated by Occidental Petroleum, lies 59 miles east of Qatars northern tip. In 1994, the field was producing 12,000 bbl/d when Occidental signed a 25-year PSA with Qatar Petroleum, agreeing to invest $700 million in field development, Reservoir repairs, gas and water injection systems, and further exploration.  Output from ISND currently is about 100,000 bbl/d. In September 1997, Occidental signed another PSA with Qatar Petroleum (then known as QGPC) to develop the Id al-Shargi South Dome (ISSD) Oil field. ISSD is located 15 miles from ISND, and Occidental will operate ISSD as a satellite of ISND, keeping overall per-unit operating costs lower. The field came onstream in November 1999 at 11,000 bbl/d, and it currently is producing around 17,000 bbl/d.  Occidentals ownership interest in ISSD is 44 percent. ISSD is estimated to contain recoverable reserves of 200 million-300 million barrels. Qatar Petroleum and Cosmo Oil concluded a contract in October 2003 for the development of two small offshore oil deposits, Al-Karkara and A-North. Production from seven wells, four in Al-Karkara and three in A-North, began in 2005, and currently is about 10,000 bbl/d.