As well as bringing expertise, Chevron has promised an initial investment of $1.24 billion in Vaca Muerta as part of its joint venture with YPF.

雪佛兰已经承诺首轮投资金额会达到12.4亿美元，并且会带来专业技术。

Nationalisation has not helped: in the first quarter of this year YPF's output of crude oil fell by 0.7% and of natural gas by 3.7%.

国有化一点作用都没有，今年第一季度YPF的原油产量下跌了0.7%，天然气产量则下跌了3.7%。

But on July 16th, after a year in which YPF's oil and gas production continued to disappoint, the government announced that it had agreed on a big joint venture between YPF and a different foreign oil giant, Chevron.

但是一年过去了，YPF的石油天然气生产仍然令人失望。7月16日，阿政府宣布接受YPF与另一家外国石油巨头雪佛兰组成合资企业。