Pemex said it may tear down an offshore platform if its structure, hurt by a series of recent fires, weakens further to prevent more damage to adjacent oil-pumping facilities. On Tuesday, a fire broke out at the Kab-121 well on the Kab-101 platform in the Gulf of Mexico, which was damaged in a blaze last month that killed 21 workers. The platform is being repaired but the fire has not been extinguished yet. Pemex would consider tearing down the Usumacinta platform, connected by a bridge to neighboring Kab-101 where most of the wells are located, to control the fire and stop oil leaks into the sea. Pemex, a top-three supplier of oil to the United States, has suffered repeated disruptions to its production and shipping operations this year due to stormy weather in the Gulf of Mexico.