the ownership share rose to 93.62% by December 2008. Assets of ExxonMobil and ConocoPhillips were expropriated in 2007 after they declined to restructure their holdings in Venezuela to give PDVSA majority control; Total, Chevron, Statoil and BP agreed and retained minority shares in their Venezuelan projects. Reaching a settlement with ExxonMobil proved difficult; Venezuela offered book value for ExxonMobil's assets, while ExxonMobil asked for as much as $12 billion. As of January 2012, this and the claims of ConocoPhillips remained before the World Bank’s International Centre for Settlement of Investment Disputes. In February 2012, PDVSA paid $255 million to ExxonMobil in compensation for nationalization of ExxonMobil's Venezuelan assets in 2007 and $420 million to be paid beginning in 2012 to US firms Williams Cos Inc. and Exterran Holdings, Inc for natural gas assets nationalized in 2009. During the same time, oil executives and politicians siphoned off at least $11 billion. More than 24 Venezuelans linked to four corruption schemes amassed at least $273 million in 25 Credit Suisse accounts opened between 2004 and 2015. 2010s: crisis in Venezuela In 2010, PDVSA loaned the government of Antigua $68 million to repurchase all remaining shares of West Indies Oil Company (WIOC) from Bruce Rappaport's National Petroleum Ltd. In 2012, PDVSA announced that it would enter into a joint venture agreement with Eni SpA and Repsol in order to initiate a gas production project at the Cardon VI gas block in Venezuela. Production from this joint venture is estimated to reach between 80 and 100 million cubic meters of gas. In February 2014, PDVSA and the Anglo-French oil firm Perenco entered into talks for a $600 million financing deal to boost production at their Petrowarao joint venture. In October 2014, Venezuela imported its first ever ship of oil from Algeria so that they could dilute their oil. Policies enacted by Chávez caused a crisis in Venezuela, with the nation's economy deteriorating greatly. Because of the hyperinflation and food shortage, paychecks have become all but valueless, leading to mass resignation from workers. By 2017, PDVSA could not even afford to export oil through international waters, which requires safety inspections and cleaning under maritime law, with a fleet of tankers stranded in the Caribbean Sea due to the issue. In addition, Nicolás Maduro fired the head of PDVSA and replaced him with Major General Manuel Quevedo, placating the military by giving them control of PDVSA.