From the Chinese press

Oil company fails public test

China National Offshore Oil Corporation (CNOOC) kept a leakage at its oilfield off the coast of Penglai in Yantai city, Shandong province, a secret for almost half a month. Though details of the accident are still unknown, reports say that ConocoPhillips China (CPOC), the operator of CNOOC's Penglai 19-3 oilfield, observed the leakage "in early or mid-June" and has "effectively controlled" it. This is far from satisfactory, says an article in Changjiang Daily. Excerpts:

This is not the first time that CNOOC has maintained silence over an accident. The company has still not made public the details of the May 13, 2010, leakage in one of its offshore oil rigs in the South China Sea.