At Montara, production operations have been adjusted with the satellite Skua 10 and Skua 11 wells having been taken offline.
A routine inspection campaign revealed issues that will be addressed in planned workovers.
Jadestone plans to conduct the repairs using either a subsea ROV or with the jackup Valaris 107, which is expected to come on contract in 2Q 2021.
The company has largely offset the deferred production from Skua via increased rates from the Montara and Swift/Swallow fields.
Jadestone is also negotiating an enterprise bargaining agreement with three labor unions that represent much of the Montara offshore workforce, focused partly on compensation in line with the economic circumstances.
At Stag, new crude oil offtake arrangements have taken effect under which production is loaded directly to shuttle tankers, rather than via an FSO.
The trial period has led to cost savings, in line with the previous estimate of a 20% annual reduction.
With COVID-19 related restrictions in Australia easing, the company has started a campaign of workovers of three Stag producer wells, mainly to replace electric submersible pumps nearing the end of their useful life.