How to break a big spanish company built in years in just some days

Bad times for Spain due crisis, but worse for REPSOL, the most largest spanish petroleum company and at the top 20 on the oil companies. One of its shareholders, the spanish construction company SACYR Vallehermoso is allied with the mexican petroleum company PEMEX. The aim, break up REPSOL, PEMEX will stay with all the assets in the american continent and SACYR will stay with the money of the sell of those assets.