Marathon Oil Corporation said Friday the Mirawa-1 exploration well has discovered multiple stacked oil and natural gas producing zones on the Harir Block in the Kurdistan Region of Iraq.
Located about 40 miles northeast of Erbil, the Mirawa-1 well was drilled to a total depth of 14,000 feet. Oil and natural gas shows were noted over an extensive gross interval of both Jurassic and Triassic reservoirs from 5,800 feet to total depth.
Flow rates were established from multiple zones in the Jurassic of high quality oil (39º – 45º API) totaling in excess of 11,000 barrels per day (bpd). Additionally, multiple non-associated gas zones in the Triassic flowed at rates totaling approximately 72 million cubic feet per day (mmcfd), together with associated condensate from one zone at a rate of 1,700 bpd.
“The Mirawa oil and natural gas discovery well found significant resources in both the Jurassic and Triassic reservoirs. We look forward to further appraising this discovery and drilling our next Harir Block prospect, Jisik,” said Marathon Oil president and CEO Lee Tillman. “As the first large U.S. publicly traded company to enter in October 2010, Marathon Oil is pleased to have a strong presence in the Kurdistan Region of Iraq.”
Iraqi Kurdistan is an autonomous region of northern Iraq. It borders Iran to the east, Turkey to the north, Syria to the west and the rest of Iraq to the south.
The Mirawa-1 well will be suspended for potential future use as a producing well. Following completion of current operations, the drilling rig will be moved to the Jisik-1 prospect located nine miles northwest of Mirawa-1. The Jisik-1 well will test a similar prospective structure to Mirawa.
Marathon Oil is the operator with a 45 percent working interest in the Harir block. Total holds a 35 percent working interest, and the Kurdistan Regional Government holds a 20 percent carried interest.
Houston-based Marathon had net proved reserves at the end of 2012 of 2 billion barrels of oil equivalent in North America, Europe and Africa.