the balance of power. just a few days ago the rebel forces were advancing steadily westward. now it appears that advance has come to a screeching halt and it may be turning in the other direction. >> at least one oil storage tank to the west ruz hit in the fighting by whom it's not clear. this is the first time that libya's oil infrastructure has been damaged. what started as a revolution has become a war. ben wedeman, cnn, ras lanuf, eastern libya. >> and joining us now, nic robertson in tripoli. nic, the fighting is continuing in zawiya, not far from where you are now. you had a personal experience involving what's going on. share it with our viewers.