While offshore oil production has been relatively stable since 2000, natural gas output from offshore fields has risen by more than 50 % over the same period. (iea.org)
The state - owned CNPC had begun exploring new offshore fields in Libyan waters before the war erupted, and both Sinopec group and CNOOC had engineering projects. (blog.politics.ox.ac.uk)
Now all of this is unwinding and Goldman Sachs thinks that the costs to develop a new offshore field in 2018 - 2019 will be less than half of what it was only 4 - 5 years ago, according to Della Vigna. (oilprice.com)