New York-listed drillship owner Transocean has expanded a loan facility to $1.36bn.
The Swiss-based company said it has built the revolver from $1bn when it was arranged last year.
It can also add another $500m. The facility matures in July, 2023.
An additional $140m remains available under its accordion provision.
Transocean has a fleet of 48 mobile offshore drilling units.