The Energy Act 2008 refers to the OGA (the Oil and Gas Authority), but this has since been renamed the North Sea Transition Authority.
Mae Deddf Ynni 2008 yn cyfeirio at yr OGA (yr Awdurdod Olew a Nwy), ond ers hynny mae wedi cael ei ailenwi'n Awdurdod Pontio Môr y Gogledd.